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Diffstat (limited to 'src/macterm.c')
| -rw-r--r-- | src/macterm.c | 13192 |
1 files changed, 13192 insertions, 0 deletions
diff --git a/src/macterm.c b/src/macterm.c new file mode 100644 index 00000000000..4e3dc93d7ce --- /dev/null +++ b/src/macterm.c @@ -0,0 +1,13192 @@ +/* Implementation of GUI terminal on the Mac OS. + Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. + +This file is part of GNU Emacs. + +GNU Emacs is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Emacs is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Emacs; see the file COPYING. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Contributed by Andrew Choi (akochoi@mac.com). */ + +#include <config.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include "lisp.h" +#include "charset.h" +#include "blockinput.h" + +#include "macterm.h" + +#ifndef MAC_OSX +#include <alloca.h> +#endif + +#ifdef MAC_OSX +#undef mktime +#undef DEBUG +#undef free +#undef malloc +#undef realloc +/* Macros max and min defined in lisp.h conflict with those in + precompiled header Carbon.h. */ +#undef max +#undef min +#include <Carbon/Carbon.h> +#undef free +#define free unexec_free +#undef malloc +#define malloc unexec_malloc +#undef realloc +#define realloc unexec_realloc +#undef min +#define min(a, b) ((a) < (b) ? (a) : (b)) +#undef max +#define max(a, b) ((a) > (b) ? (a) : (b)) +#else /* not MAC_OSX */ +#include <Quickdraw.h> +#include <ToolUtils.h> +#include <Sound.h> +#include <Events.h> +#include <Script.h> +#include <Resources.h> +#include <Fonts.h> +#include <TextUtils.h> +#include <LowMem.h> +#include <Controls.h> +#if defined (__MRC__) || (__MSL__ >= 0x6000) +#include <ControlDefinitions.h> +#endif +#include <Gestalt.h> + +#if __profile__ +#include <profiler.h> +#endif +#endif /* not MAC_OSX */ + +#include "systty.h" +#include "systime.h" +#include "atimer.h" +#include "keymap.h" + +#include <ctype.h> +#include <errno.h> +#include <setjmp.h> +#include <sys/stat.h> + +#include "keyboard.h" +#include "frame.h" +#include "dispextern.h" +#include "fontset.h" +#include "termhooks.h" +#include "termopts.h" +#include "termchar.h" +#include "gnu.h" +#include "disptab.h" +#include "buffer.h" +#include "window.h" +#include "intervals.h" +#include "composite.h" +#include "coding.h" + +#define BETWEEN(X, LOWER, UPPER) ((X) >= (LOWER) && (X) < (UPPER)) + + +/* Fringe bitmaps. */ + +enum fringe_bitmap_type +{ + NO_FRINGE_BITMAP, + LEFT_TRUNCATION_BITMAP, + RIGHT_TRUNCATION_BITMAP, + OVERLAY_ARROW_BITMAP, + CONTINUED_LINE_BITMAP, + CONTINUATION_LINE_BITMAP, + ZV_LINE_BITMAP +}; + +/* Bitmap drawn to indicate lines not displaying text if + `indicate-empty-lines' is non-nil. */ + +#define zv_width 8 +#define zv_height 72 +#define zv_period 3 +static unsigned char zv_bits[] = { + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, + 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x3c, 0x00}; + +/* An arrow like this: `<-'. */ + +#define left_width 8 +#define left_height 8 +static unsigned char left_bits[] = { + 0x18, 0x30, 0x60, 0xfc, 0xfc, 0x60, 0x30, 0x18}; + +/* Right truncation arrow bitmap `->'. */ + +#define right_width 8 +#define right_height 8 +static unsigned char right_bits[] = { + 0x18, 0x0c, 0x06, 0x3f, 0x3f, 0x06, 0x0c, 0x18}; + +/* Marker for continued lines. */ + +#define continued_width 8 +#define continued_height 8 +static unsigned char continued_bits[] = { + 0x3c, 0x3e, 0x03, 0x27, 0x3f, 0x3e, 0x3c, 0x3e}; + +/* Marker for continuation lines. */ + +#define continuation_width 8 +#define continuation_height 8 +static unsigned char continuation_bits[] = { + 0x3c, 0x7c, 0xc0, 0xe4, 0xfc, 0x7c, 0x3c, 0x7c}; + +/* Overlay arrow bitmap. */ + +#if 0 +/* A bomb. */ +#define ov_width 8 +#define ov_height 8 +static unsigned char ov_bits[] = { + 0x0c, 0x10, 0x3c, 0x7e, 0x5e, 0x5e, 0x46, 0x3c}; +#else +/* A triangular arrow. */ +#define ov_width 8 +#define ov_height 8 +static unsigned char ov_bits[] = { + 0xc0, 0xf0, 0xf8, 0xfc, 0xfc, 0xf8, 0xf0, 0xc0}; +#endif + +extern Lisp_Object Qhelp_echo; + + +/* Non-nil means Emacs uses toolkit scroll bars. */ + +Lisp_Object Vx_toolkit_scroll_bars; + +/* If a string, XTread_socket generates an event to display that string. + (The display is done in read_char.) */ + +static Lisp_Object help_echo; +static Lisp_Object help_echo_window; +static Lisp_Object help_echo_object; +static int help_echo_pos; + +/* Temporary variable for XTread_socket. */ + +static Lisp_Object previous_help_echo; + +/* Non-zero means that a HELP_EVENT has been generated since Emacs + start. */ + +static int any_help_event_p; + +/* Non-zero means autoselect window with the mouse cursor. */ + +int x_autoselect_window_p; + +/* Non-zero means draw block and hollow cursor as wide as the glyph + under it. For example, if a block cursor is over a tab, it will be + drawn as wide as that tab on the display. */ + +int x_stretch_cursor_p; + +/* Non-zero means make use of UNDERLINE_POSITION font properties. */ + +int x_use_underline_position_properties; + +/* This is a chain of structures for all the X displays currently in + use. */ + +struct x_display_info *x_display_list; + +/* This is a list of cons cells, each of the form (NAME + . FONT-LIST-CACHE), one for each element of x_display_list and in + the same order. NAME is the name of the frame. FONT-LIST-CACHE + records previous values returned by x-list-fonts. */ + +Lisp_Object x_display_name_list; + +/* This is display since Mac does not support multiple ones. */ +struct mac_display_info one_mac_display_info; + +/* Frame being updated by update_frame. This is declared in term.c. + This is set by update_begin and looked at by all the XT functions. + It is zero while not inside an update. In that case, the XT + functions assume that `selected_frame' is the frame to apply to. */ + +extern struct frame *updating_frame; + +extern int waiting_for_input; + +/* This is a frame waiting to be auto-raised, within XTread_socket. */ + +struct frame *pending_autoraise_frame; + +/* Nominal cursor position -- where to draw output. + HPOS and VPOS are window relative glyph matrix coordinates. + X and Y are window relative pixel coordinates. */ + +struct cursor_pos output_cursor; + +/* Non-zero means user is interacting with a toolkit scroll bar. */ + +static int toolkit_scroll_bar_interaction; + +/* Mouse movement. + + Formerly, we used PointerMotionHintMask (in standard_event_mask) + so that we would have to call XQueryPointer after each MotionNotify + event to ask for another such event. However, this made mouse tracking + slow, and there was a bug that made it eventually stop. + + Simply asking for MotionNotify all the time seems to work better. + + In order to avoid asking for motion events and then throwing most + of them away or busy-polling the server for mouse positions, we ask + the server for pointer motion hints. This means that we get only + one event per group of mouse movements. "Groups" are delimited by + other kinds of events (focus changes and button clicks, for + example), or by XQueryPointer calls; when one of these happens, we + get another MotionNotify event the next time the mouse moves. This + is at least as efficient as getting motion events when mouse + tracking is on, and I suspect only negligibly worse when tracking + is off. */ + +/* Where the mouse was last time we reported a mouse event. */ + +FRAME_PTR last_mouse_frame; +static Rect last_mouse_glyph; +static Lisp_Object last_mouse_press_frame; + +/* The scroll bar in which the last X motion event occurred. + + If the last X motion event occurred in a scroll bar, we set this so + XTmouse_position can know whether to report a scroll bar motion or + an ordinary motion. + + If the last X motion event didn't occur in a scroll bar, we set + this to Qnil, to tell XTmouse_position to return an ordinary motion + event. */ + +static Lisp_Object last_mouse_scroll_bar; + +/* This is a hack. We would really prefer that XTmouse_position would + return the time associated with the position it returns, but there + doesn't seem to be any way to wrest the time-stamp from the server + along with the position query. So, we just keep track of the time + of the last movement we received, and return that in hopes that + it's somewhat accurate. */ + +static Time last_mouse_movement_time; + +enum mouse_tracking_type { + mouse_tracking_none, + mouse_tracking_mouse_movement, + mouse_tracking_scroll_bar +}; + +enum mouse_tracking_type mouse_tracking_in_progress = mouse_tracking_none; + +struct scroll_bar *tracked_scroll_bar = NULL; + +/* Incremented by XTread_socket whenever it really tries to read + events. */ + +#ifdef __STDC__ +static int volatile input_signal_count; +#else +static int input_signal_count; +#endif + +/* Used locally within XTread_socket. */ + +static int x_noop_count; + +/* Initial values of argv and argc. */ + +extern char **initial_argv; +extern int initial_argc; + +extern Lisp_Object Vcommand_line_args, Vsystem_name; + +/* Tells if a window manager is present or not. */ + +extern Lisp_Object Vx_no_window_manager; + +extern Lisp_Object Qface, Qmouse_face; + +extern int errno; + +/* A mask of extra modifier bits to put into every keyboard char. */ + +extern int extra_keyboard_modifiers; + +static Lisp_Object Qvendor_specific_keysyms; + +#if 0 +extern XrmDatabase x_load_resources P_ ((Display *, char *, char *, char *)); +#endif + +extern Lisp_Object x_icon_type P_ ((struct frame *)); + + +#if __MRC__ +QDGlobals qd; /* QuickDraw global information structure. */ +#endif + + +/* Enumeration for overriding/changing the face to use for drawing + glyphs in x_draw_glyphs. */ + +enum draw_glyphs_face +{ + DRAW_NORMAL_TEXT, + DRAW_INVERSE_VIDEO, + DRAW_CURSOR, + DRAW_MOUSE_FACE, + DRAW_IMAGE_RAISED, + DRAW_IMAGE_SUNKEN +}; + +struct frame * x_window_to_frame (struct mac_display_info *, WindowPtr); +struct mac_display_info *mac_display_info_for_display (Display *); +static void x_update_window_end P_ ((struct window *, int, int)); +static void frame_to_window_pixel_xy P_ ((struct window *, int *, int *)); +static int fast_find_position P_ ((struct window *, int, int *, int *, + int *, int *, Lisp_Object)); +static int fast_find_string_pos P_ ((struct window *, int, Lisp_Object, + int *, int *, int *, int *, int)); +static void set_output_cursor P_ ((struct cursor_pos *)); +static struct glyph *x_y_to_hpos_vpos P_ ((struct window *, int, int, + int *, int *, int *, int)); +static void note_mode_line_highlight P_ ((struct window *, int, int)); +static void note_mouse_highlight P_ ((struct frame *, int, int)); +static void note_tool_bar_highlight P_ ((struct frame *f, int, int)); +static void x_handle_tool_bar_click P_ ((struct frame *, EventRecord *)); +static void show_mouse_face P_ ((struct x_display_info *, + enum draw_glyphs_face)); +static int cursor_in_mouse_face_p P_ ((struct window *)); +static int clear_mouse_face P_ ((struct mac_display_info *)); +static int x_io_error_quitter P_ ((Display *)); +int x_catch_errors P_ ((Display *)); +void x_uncatch_errors P_ ((Display *, int)); +void x_lower_frame P_ ((struct frame *)); +void x_scroll_bar_clear P_ ((struct frame *)); +int x_had_errors_p P_ ((Display *)); +void x_wm_set_size_hint P_ ((struct frame *, long, int)); +void x_raise_frame P_ ((struct frame *)); +void x_set_window_size P_ ((struct frame *, int, int, int)); +void x_wm_set_window_state P_ ((struct frame *, int)); +void x_wm_set_icon_pixmap P_ ((struct frame *, int)); +void mac_initialize P_ ((void)); +static void x_font_min_bounds P_ ((XFontStruct *, int *, int *)); +static int x_compute_min_glyph_bounds P_ ((struct frame *)); +enum text_cursor_kinds x_specified_cursor_type P_ ((Lisp_Object, int *)); +static void x_draw_phys_cursor_glyph P_ ((struct window *, + struct glyph_row *, + enum draw_glyphs_face)); +static void x_update_end P_ ((struct frame *)); +static void XTframe_up_to_date P_ ((struct frame *)); +static void XTreassert_line_highlight P_ ((int, int)); +static void x_change_line_highlight P_ ((int, int, int, int)); +static void XTset_terminal_modes P_ ((void)); +static void XTreset_terminal_modes P_ ((void)); +static void XTcursor_to P_ ((int, int, int, int)); +static void x_write_glyphs P_ ((struct glyph *, int)); +static void x_clear_end_of_line P_ ((int)); +static void x_clear_frame P_ ((void)); +static void x_clear_cursor P_ ((struct window *)); +static void frame_highlight P_ ((struct frame *)); +static void frame_unhighlight P_ ((struct frame *)); +static void x_new_focus_frame P_ ((struct x_display_info *, struct frame *)); +static void XTframe_rehighlight P_ ((struct frame *)); +static void x_frame_rehighlight P_ ((struct x_display_info *)); +static void x_draw_hollow_cursor P_ ((struct window *, struct glyph_row *)); +static void x_draw_bar_cursor P_ ((struct window *, struct glyph_row *, int)); +static int x_intersect_rectangles P_ ((Rect *, Rect *, Rect *)); +static void expose_frame P_ ((struct frame *, int, int, int, int)); +static int expose_window_tree P_ ((struct window *, Rect *)); +static int expose_window P_ ((struct window *, Rect *)); +static void expose_area P_ ((struct window *, struct glyph_row *, + Rect *, enum glyph_row_area)); +static int expose_line P_ ((struct window *, struct glyph_row *, + Rect *)); +void x_display_cursor (struct window *, int, int, int, int, int); +void x_update_cursor P_ ((struct frame *, int)); +static void x_update_cursor_in_window_tree P_ ((struct window *, int)); +static void x_update_window_cursor P_ ((struct window *, int)); +static void x_erase_phys_cursor P_ ((struct window *)); +void x_display_and_set_cursor P_ ((struct window *, int, int, int, int, int)); +static void x_draw_fringe_bitmap P_ ((struct window *, struct glyph_row *, + enum fringe_bitmap_type, int left_p)); +static void x_clip_to_row P_ ((struct window *, struct glyph_row *, + GC, int)); +static int x_phys_cursor_in_rect_p P_ ((struct window *, Rect *)); +static void x_draw_row_fringe_bitmaps P_ ((struct window *, struct glyph_row *)); +static void notice_overwritten_cursor P_ ((struct window *, + enum glyph_row_area, + int, int, int, int)); +static void x_flush P_ ((struct frame *f)); +static void x_update_begin P_ ((struct frame *)); +static void x_update_window_begin P_ ((struct window *)); +static void x_draw_vertical_border P_ ((struct window *)); +static void x_after_update_window_line P_ ((struct glyph_row *)); +static INLINE void take_vertical_position_into_account P_ ((struct it *)); +static void x_produce_stretch_glyph P_ ((struct it *)); + +static void activate_scroll_bars (FRAME_PTR); +static void deactivate_scroll_bars (FRAME_PTR); + +extern int image_ascent (struct image *, struct face *); +void x_set_offset (struct frame *, int, int, int); +int x_bitmap_icon (struct frame *, Lisp_Object); +void x_make_frame_visible (struct frame *); + +extern void window_scroll (Lisp_Object, int, int, int); + +/* Defined in macmenu.h. */ +extern void menubar_selection_callback (FRAME_PTR, int); +extern void set_frame_menubar (FRAME_PTR, int, int); + +/* X display function emulation */ + +/* Structure borrowed from Xlib.h to represent two-byte characters in + dumpglyphs. */ + +typedef struct { + unsigned char byte1; + unsigned char byte2; +} XChar2b; + +static void +XFreePixmap (display, pixmap) + Display *display; + Pixmap pixmap; +{ + PixMap *p = (PixMap *) pixmap; + + xfree (p->baseAddr); + xfree (p); +} + + +/* Set foreground color for subsequent QuickDraw commands. Assume + graphic port has already been set. */ + +static void +mac_set_forecolor (unsigned long color) +{ + RGBColor fg_color; + + fg_color.red = RED_FROM_ULONG (color) * 256; + fg_color.green = GREEN_FROM_ULONG (color) * 256; + fg_color.blue = BLUE_FROM_ULONG (color) * 256; + + RGBForeColor (&fg_color); +} + + +/* Set background color for subsequent QuickDraw commands. Assume + graphic port has already been set. */ + +static void +mac_set_backcolor (unsigned long color) +{ + RGBColor bg_color; + + bg_color.red = RED_FROM_ULONG (color) * 256; + bg_color.green = GREEN_FROM_ULONG (color) * 256; + bg_color.blue = BLUE_FROM_ULONG (color) * 256; + + RGBBackColor (&bg_color); +} + +/* Set foreground and background color for subsequent QuickDraw + commands. Assume that the graphic port has already been set. */ + +static void +mac_set_colors (GC gc) +{ + mac_set_forecolor (gc->foreground); + mac_set_backcolor (gc->background); +} + +/* Mac version of XDrawLine. */ + +static void +XDrawLine (display, w, gc, x1, y1, x2, y2) + Display *display; + WindowPtr w; + GC gc; + int x1, y1, x2, y2; +{ +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (gc); + + MoveTo (x1, y1); + LineTo (x2, y2); +} + +/* Mac version of XClearArea. */ + +void +XClearArea (display, w, x, y, width, height, exposures) + Display *display; + WindowPtr w; + int x, y; + unsigned int width, height; + int exposures; +{ + struct mac_output *mwp = (mac_output *) GetWRefCon (w); + Rect r; + XGCValues xgc; + + xgc.foreground = mwp->x_compatible.foreground_pixel; + xgc.background = mwp->x_compatible.background_pixel; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (&xgc); + SetRect (&r, x, y, x + width, y + height); + + EraseRect (&r); +} + +/* Mac version of XClearWindow. */ + +static void +XClearWindow (display, w) + Display *display; + WindowPtr w; +{ + struct mac_output *mwp = (mac_output *) GetWRefCon (w); + XGCValues xgc; + + xgc.foreground = mwp->x_compatible.foreground_pixel; + xgc.background = mwp->x_compatible.background_pixel; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (&xgc); + +#if TARGET_API_MAC_CARBON + { + Rect r; + + GetWindowPortBounds (w, &r); + EraseRect (&r); + } +#else /* not TARGET_API_MAC_CARBON */ + EraseRect (&(w->portRect)); +#endif /* not TARGET_API_MAC_CARBON */ +} + + +/* Mac replacement for XCopyArea. */ + +static void +mac_draw_bitmap (display, w, gc, x, y, bitmap) + Display *display; + WindowPtr w; + GC gc; + int x, y; + BitMap *bitmap; +{ + Rect r; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (gc); + SetRect (&r, x, y, x + bitmap->bounds.right, y + bitmap->bounds.bottom); + +#if TARGET_API_MAC_CARBON + { + PixMapHandle pmh; + + LockPortBits (GetWindowPort (w)); + pmh = GetPortPixMap (GetWindowPort (w)); + CopyBits (bitmap, (BitMap *) *pmh, &(bitmap->bounds), &r, srcCopy, 0); + UnlockPortBits (GetWindowPort (w)); + } +#else /* not TARGET_API_MAC_CARBON */ + CopyBits (bitmap, &(w->portBits), &(bitmap->bounds), &r, srcCopy, 0); +#endif /* not TARGET_API_MAC_CARBON */ +} + + +/* Mac replacement for XSetClipRectangles. */ + +static void +mac_set_clip_rectangle (display, w, r) + Display *display; + WindowPtr w; + Rect *r; +{ +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + ClipRect (r); +} + + +/* Mac replacement for XSetClipMask. */ + +static void +mac_reset_clipping (display, w) + Display *display; + WindowPtr w; +{ + Rect r; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + SetRect (&r, -32767, -32767, 32767, 32767); + ClipRect (&r); +} + + +/* Mac replacement for XCreateBitmapFromBitmapData. */ + +static void +mac_create_bitmap_from_bitmap_data (bitmap, bits, w, h) + BitMap *bitmap; + char *bits; + int w, h; +{ + int bytes_per_row, i, j; + + bitmap->rowBytes = (w + 15) / 16 * 2; /* must be on word boundary */ + bitmap->baseAddr = xmalloc (bitmap->rowBytes * h); + if (!bitmap->baseAddr) + abort (); + + bzero (bitmap->baseAddr, bitmap->rowBytes * h); + for (i = 0; i < h; i++) + for (j = 0; j < w; j++) + if (BitTst (bits, i * w + j)) + BitSet (bitmap->baseAddr, i * bitmap->rowBytes * 8 + j); + + SetRect (&(bitmap->bounds), 0, 0, w, h); +} + + +static void +mac_free_bitmap (bitmap) + BitMap *bitmap; +{ + xfree (bitmap->baseAddr); +} + +/* Mac replacement for XFillRectangle. */ + +static void +XFillRectangle (display, w, gc, x, y, width, height) + Display *display; + WindowPtr w; + GC gc; + int x, y; + unsigned int width, height; +{ + Rect r; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (gc); + SetRect (&r, x, y, x + width, y + height); + + PaintRect (&r); /* using foreground color of gc */ +} + + +/* Mac replacement for XDrawRectangle: dest is a window. */ + +static void +mac_draw_rectangle (display, w, gc, x, y, width, height) + Display *display; + WindowPtr w; + GC gc; + int x, y; + unsigned int width, height; +{ + Rect r; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (gc); + SetRect (&r, x, y, x + width + 1, y + height + 1); + + FrameRect (&r); /* using foreground color of gc */ +} + + +/* Mac replacement for XDrawRectangle: dest is a Pixmap. */ + +static void +mac_draw_rectangle_to_pixmap (display, p, gc, x, y, width, height) + Display *display; + Pixmap p; + GC gc; + int x, y; + unsigned int width, height; +{ +#if 0 /* MAC_TODO: draw a rectangle in a PixMap */ + Rect r; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (gc); + SetRect (&r, x, y, x + width, y + height); + + FrameRect (&r); /* using foreground color of gc */ +#endif /* 0 */ +} + + +static void +mac_draw_string_common (display, w, gc, x, y, buf, nchars, mode, + bytes_per_char) + Display *display; + WindowPtr w; + GC gc; + int x, y; + char *buf; + int nchars, mode, bytes_per_char; +{ +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + mac_set_colors (gc); + + TextFont (gc->font->mac_fontnum); + TextSize (gc->font->mac_fontsize); + TextFace (gc->font->mac_fontface); + TextMode (mode); + + MoveTo (x, y); + DrawText (buf, 0, nchars * bytes_per_char); +} + + +/* Mac replacement for XDrawString. */ + +static void +XDrawString (display, w, gc, x, y, buf, nchars) + Display *display; + WindowPtr w; + GC gc; + int x, y; + char *buf; + int nchars; +{ + mac_draw_string_common (display, w, gc, x, y, buf, nchars, srcOr, 1); +} + + +/* Mac replacement for XDrawString16. */ + +static void +XDrawString16 (display, w, gc, x, y, buf, nchars) + Display *display; + WindowPtr w; + GC gc; + int x, y; + XChar2b *buf; + int nchars; +{ + mac_draw_string_common (display, w, gc, x, y, (char *) buf, nchars, srcOr, + 2); +} + + +/* Mac replacement for XDrawImageString. */ + +static void +XDrawImageString (display, w, gc, x, y, buf, nchars) + Display *display; + WindowPtr w; + GC gc; + int x, y; + char *buf; + int nchars; +{ + mac_draw_string_common (display, w, gc, x, y, buf, nchars, srcCopy, 1); +} + + +/* Mac replacement for XDrawString16. */ + +static void +XDrawImageString16 (display, w, gc, x, y, buf, nchars) + Display *display; + WindowPtr w; + GC gc; + int x, y; + XChar2b *buf; + int nchars; +{ + mac_draw_string_common (display, w, gc, x, y, (char *) buf, nchars, srcCopy, + 2); +} + + +/* Mac replacement for XCopyArea: dest must be window. */ + +static void +mac_copy_area (display, src, dest, gc, src_x, src_y, width, height, dest_x, + dest_y) + Display *display; + Pixmap src; + WindowPtr dest; + GC gc; + int src_x, src_y; + unsigned int width, height; + int dest_x, dest_y; +{ + Rect src_r, dest_r; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (dest)); +#else + SetPort (dest); +#endif + + mac_set_colors (gc); + + SetRect (&src_r, src_x, src_y, src_x + width, src_y + height); + SetRect (&dest_r, dest_x, dest_y, dest_x + width, dest_y + height); + +#if TARGET_API_MAC_CARBON + { + PixMapHandle pmh; + + LockPortBits (GetWindowPort (dest)); + pmh = GetPortPixMap (GetWindowPort (dest)); + CopyBits ((BitMap *) &src, (BitMap *) *pmh, &src_r, &dest_r, srcCopy, 0); + UnlockPortBits (GetWindowPort (dest)); + } +#else /* not TARGET_API_MAC_CARBON */ + CopyBits ((BitMap *) &src, &(dest->portBits), &src_r, &dest_r, srcCopy, 0); +#endif /* not TARGET_API_MAC_CARBON */ +} + + +#if 0 +/* Convert a pair of local coordinates to global (screen) coordinates. + Assume graphic port has been properly set. */ +static void +local_to_global_coord (short *h, short *v) +{ + Point p; + + p.h = *h; + p.v = *v; + + LocalToGlobal (&p); + + *h = p.h; + *v = p.v; +} +#endif + +/* Mac replacement for XCopyArea: used only for scrolling. */ + +static void +mac_scroll_area (display, w, gc, src_x, src_y, width, height, dest_x, dest_y) + Display *display; + WindowPtr w; + GC gc; + int src_x, src_y; + unsigned int width, height; + int dest_x, dest_y; +{ +#if TARGET_API_MAC_CARBON + Rect gw_r, src_r, dest_r; + PixMapHandle pmh; + + SetRect (&src_r, src_x, src_y, src_x + width, src_y + height); + SetRect (&dest_r, dest_x, dest_y, dest_x + width, dest_y + height); + + SetPort (GetWindowPort (w)); + mac_set_colors (gc); + + LockPortBits (GetWindowPort (w)); + pmh = GetPortPixMap (GetWindowPort (w)); + CopyBits ((BitMap *) *pmh, (BitMap *) *pmh, &src_r, &dest_r, srcCopy, 0); + UnlockPortBits (GetWindowPort (w)); +#else /* not TARGET_API_MAC_CARBON */ + Rect src_r, dest_r; + + SetPort (w); +#if 0 + mac_set_colors (gc); +#endif + + SetRect (&src_r, src_x, src_y, src_x + width, src_y + height); + SetRect (&dest_r, dest_x, dest_y, dest_x + width, dest_y + height); + +#if 0 + /* Need to use global coordinates and screenBits since src and dest + areas overlap in general. */ + local_to_global_coord (&src_r.left, &src_r.top); + local_to_global_coord (&src_r.right, &src_r.bottom); + local_to_global_coord (&dest_r.left, &dest_r.top); + local_to_global_coord (&dest_r.right, &dest_r.bottom); + + CopyBits (&qd.screenBits, &qd.screenBits, &src_r, &dest_r, srcCopy, 0); +#else + /* In Color QuickDraw, set ForeColor and BackColor as follows to avoid + color mapping in CopyBits. Otherwise, it will be slow. */ + ForeColor (blackColor); + BackColor (whiteColor); + CopyBits (&(w->portBits), &(w->portBits), &src_r, &dest_r, srcCopy, 0); + + mac_set_colors (gc); +#endif +#endif /* not TARGET_API_MAC_CARBON */ +} + + +/* Mac replacement for XCopyArea: dest must be Pixmap. */ + +static void +mac_copy_area_to_pixmap (display, src, dest, gc, src_x, src_y, width, height, + dest_x, dest_y) + Display *display; + Pixmap src; + Pixmap dest; + GC gc; + int src_x, src_y; + unsigned int width, height; + int dest_x, dest_y; +{ + Rect src_r, dest_r; + int src_right = ((PixMap *) src)->bounds.right; + int src_bottom = ((PixMap *) src)->bounds.bottom; + int w = src_right - src_x; + int h = src_bottom - src_y; + + mac_set_colors (gc); + + SetRect (&src_r, src_x, src_y, src_right, src_bottom); + SetRect (&dest_r, dest_x, dest_y, dest_x + w, dest_y + h); + + CopyBits ((BitMap *) &src, (BitMap *) &dest, &src_r, &dest_r, srcCopy, 0); +} + + +/* Mac replacement for XChangeGC. */ + +static void +XChangeGC (void * ignore, XGCValues* gc, unsigned long mask, + XGCValues *xgcv) +{ + if (mask & GCForeground) + gc->foreground = xgcv->foreground; + if (mask & GCBackground) + gc->background = xgcv->background; + if (mask & GCFont) + gc->font = xgcv->font; +} + + +/* Mac replacement for XCreateGC. */ + +XGCValues * +XCreateGC (void * ignore, Window window, unsigned long mask, + XGCValues *xgcv) +{ + XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues)); + bzero (gc, sizeof (XGCValues)); + + XChangeGC (ignore, gc, mask, xgcv); + + return gc; +} + + +/* Used in xfaces.c. */ + +void +XFreeGC (display, gc) + Display *display; + GC gc; +{ + xfree (gc); +} + + +/* Mac replacement for XGetGCValues. */ + +static void +XGetGCValues (void* ignore, XGCValues *gc, + unsigned long mask, XGCValues *xgcv) +{ + XChangeGC (ignore, xgcv, mask, gc); +} + + +/* Mac replacement for XSetForeground. */ + +static void +XSetForeground (display, gc, color) + Display *display; + GC gc; + unsigned long color; +{ + gc->foreground = color; +} + + +/* Mac replacement for XSetFont. */ + +static void +XSetFont (display, gc, font) + Display *display; + GC gc; + XFontStruct *font; +{ + gc->font = font; +} + + +static void +XTextExtents16 (XFontStruct *font, XChar2b *text, int nchars, + int *direction,int *font_ascent, + int *font_descent, XCharStruct *cs) +{ + /* MAC_TODO: Use GetTextMetrics to do this and inline it below. */ +} + + +/* x_sync is a no-op on Mac. */ +void +x_sync (f) + void *f; +{ +} + + +/* Remove calls to XFlush by defining XFlush to an empty replacement. + Calls to XFlush should be unnecessary because the X output buffer + is flushed automatically as needed by calls to XPending, + XNextEvent, or XWindowEvent according to the XFlush man page. + XTread_socket calls XPending. Removing XFlush improves + performance. */ + +#if TARGET_API_MAC_CARBON +#define XFlush(DISPLAY) QDFlushPortBuffer (GetQDGlobalsThePort (), NULL) +#else +#define XFlush(DISPLAY) (void) 0 +#endif + +/* Flush display of frame F, or of all frames if F is null. */ + +void +x_flush (f) + struct frame *f; +{ +#if TARGET_API_MAC_CARBON + BLOCK_INPUT; + if (f == NULL) + { + Lisp_Object rest, frame; + FOR_EACH_FRAME (rest, frame) + x_flush (XFRAME (frame)); + } + else if (FRAME_X_P (f)) + XFlush (FRAME_MAC_DISPLAY (f)); + UNBLOCK_INPUT; +#endif /* TARGET_API_MAC_CARBON */ +} + + + +/* Return the struct mac_display_info corresponding to DPY. There's + only one. */ + +struct mac_display_info * +mac_display_info_for_display (dpy) + Display *dpy; +{ + return &one_mac_display_info; +} + + + +/*********************************************************************** + Starting and ending an update + ***********************************************************************/ + +/* Start an update of frame F. This function is installed as a hook + for update_begin, i.e. it is called when update_begin is called. + This function is called prior to calls to x_update_window_begin for + each window being updated. */ + +static void +x_update_begin (f) + struct frame *f; +{ + /* Nothing to do. */ +} + + +/* Start update of window W. Set the global variable updated_window + to the window being updated and set output_cursor to the cursor + position of W. */ + +static void +x_update_window_begin (w) + struct window *w; +{ + struct frame *f = XFRAME (WINDOW_FRAME (w)); + struct mac_display_info *display_info = FRAME_MAC_DISPLAY_INFO (f); + + updated_window = w; + set_output_cursor (&w->cursor); + + BLOCK_INPUT; + + if (f == display_info->mouse_face_mouse_frame) + { + /* Don't do highlighting for mouse motion during the update. */ + display_info->mouse_face_defer = 1; + + /* If F needs to be redrawn, simply forget about any prior mouse + highlighting. */ + if (FRAME_GARBAGED_P (f)) + display_info->mouse_face_window = Qnil; + +#if 0 /* Rows in a current matrix containing glyphs in mouse-face have + their mouse_face_p flag set, which means that they are always + unequal to rows in a desired matrix which never have that + flag set. So, rows containing mouse-face glyphs are never + scrolled, and we don't have to switch the mouse highlight off + here to prevent it from being scrolled. */ + + /* Can we tell that this update does not affect the window + where the mouse highlight is? If so, no need to turn off. + Likewise, don't do anything if the frame is garbaged; + in that case, the frame's current matrix that we would use + is all wrong, and we will redisplay that line anyway. */ + if (!NILP (display_info->mouse_face_window) + && w == XWINDOW (display_info->mouse_face_window)) + { + int i; + + for (i = 0; i < w->desired_matrix->nrows; ++i) + if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i)) + break; + + if (i < w->desired_matrix->nrows) + clear_mouse_face (display_info); + } +#endif /* 0 */ + } + + UNBLOCK_INPUT; +} + + +/* Draw a vertical window border to the right of window W if W doesn't + have vertical scroll bars. */ + +static void +x_draw_vertical_border (w) + struct window *w; +{ + struct frame *f = XFRAME (WINDOW_FRAME (w)); + + /* Redraw borders between horizontally adjacent windows. Don't + do it for frames with vertical scroll bars because either the + right scroll bar of a window, or the left scroll bar of its + neighbor will suffice as a border. */ + if (!WINDOW_RIGHTMOST_P (w) + && !FRAME_HAS_VERTICAL_SCROLL_BARS (f)) + { + int x0, x1, y0, y1; + + window_box_edges (w, -1, &x0, &y0, &x1, &y1); + x1 += FRAME_X_RIGHT_FRINGE_WIDTH (f); + y1 -= 1; + + XDrawLine (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + f->output_data.mac->normal_gc, x1, y0, x1, y1); + } +} + + +/* End update of window W (which is equal to updated_window). + + Draw vertical borders between horizontally adjacent windows, and + display W's cursor if CURSOR_ON_P is non-zero. + + MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing + glyphs in mouse-face were overwritten. In that case we have to + make sure that the mouse-highlight is properly redrawn. + + W may be a menu bar pseudo-window in case we don't have X toolkit + support. Such windows don't have a cursor, so don't display it + here. */ + +static void +x_update_window_end (w, cursor_on_p, mouse_face_overwritten_p) + struct window *w; + int cursor_on_p, mouse_face_overwritten_p; +{ + struct mac_display_info *dpyinfo + = FRAME_MAC_DISPLAY_INFO (XFRAME (w->frame)); + + if (!w->pseudo_window_p) + { + BLOCK_INPUT; + + if (cursor_on_p) + x_display_and_set_cursor (w, 1, output_cursor.hpos, + output_cursor.vpos, + output_cursor.x, output_cursor.y); + + x_draw_vertical_border (w); + UNBLOCK_INPUT; + } + + /* If a row with mouse-face was overwritten, arrange for + XTframe_up_to_date to redisplay the mouse highlight. */ + if (mouse_face_overwritten_p) + { + dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; + dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; + dpyinfo->mouse_face_window = Qnil; + } + +#if 0 + /* Unhide the caret. This won't actually show the cursor, unless it + was visible before the corresponding call to HideCaret in + x_update_window_begin. */ + if (w32_use_visible_system_caret) + SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0); +#endif + + updated_window = NULL; +} + + +/* End update of frame F. This function is installed as a hook in + update_end. */ + +static void +x_update_end (f) + struct frame *f; +{ + /* Reset the background color of Mac OS Window to that of the frame after + update so that it is used by Mac Toolbox to clear the update region before + an update event is generated. */ +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (FRAME_MAC_WINDOW (f))); +#else + SetPort (FRAME_MAC_WINDOW (f)); +#endif + + mac_set_backcolor (FRAME_BACKGROUND_PIXEL (f)); + + /* Mouse highlight may be displayed again. */ + FRAME_MAC_DISPLAY_INFO (f)->mouse_face_defer = 0; + + BLOCK_INPUT; + XFlush (FRAME_MAC_DISPLAY (f)); + UNBLOCK_INPUT; +} + + +/* This function is called from various places in xdisp.c whenever a + complete update has been performed. The global variable + updated_window is not available here. */ + +static void +XTframe_up_to_date (f) + struct frame *f; +{ + if (FRAME_X_P (f)) + { + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + + if (dpyinfo->mouse_face_deferred_gc + || f == dpyinfo->mouse_face_mouse_frame) + { + BLOCK_INPUT; + if (dpyinfo->mouse_face_mouse_frame) + note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, + dpyinfo->mouse_face_mouse_x, + dpyinfo->mouse_face_mouse_y); + dpyinfo->mouse_face_deferred_gc = 0; + UNBLOCK_INPUT; + } + } +} + + +/* Draw truncation mark bitmaps, continuation mark bitmaps, overlay + arrow bitmaps, or clear the fringes if no bitmaps are required + before DESIRED_ROW is made current. The window being updated is + found in updated_window. This function is called from + update_window_line only if it is known that there are differences + between bitmaps to be drawn between current row and DESIRED_ROW. */ + +static void +x_after_update_window_line (desired_row) + struct glyph_row *desired_row; +{ + struct window *w = updated_window; + struct frame *f; + int width, height; + + xassert (w); + + if (!desired_row->mode_line_p && !w->pseudo_window_p) + { + BLOCK_INPUT; + x_draw_row_fringe_bitmaps (w, desired_row); + UNBLOCK_INPUT; + } + + /* When a window has disappeared, make sure that no rest of + full-width rows stays visible in the internal border. Could + check here if updated_window is the leftmost/rightmost window, + but I guess it's not worth doing since vertically split windows + are almost never used, internal border is rarely set, and the + overhead is very small. */ + if (windows_or_buffers_changed + && desired_row->full_width_p + && (f = XFRAME (w->frame), + width = FRAME_INTERNAL_BORDER_WIDTH (f), + width != 0) + && (height = desired_row->visible_height, + height > 0)) + { + int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y)); + /* Internal border is drawn below the tool bar. */ + if (WINDOWP (f->tool_bar_window) + && w == XWINDOW (f->tool_bar_window)) + y -= width; + + BLOCK_INPUT; + + XClearArea (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + 0, y, width, height, 0); + XClearArea (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + f->output_data.mac->pixel_width - width, y, + width, height, 0); + + UNBLOCK_INPUT; + } +} + + +/* Draw the bitmap WHICH in one of the left or right fringes of + window W. ROW is the glyph row for which to display the bitmap; it + determines the vertical position at which the bitmap has to be + drawn. */ + +static void +x_draw_fringe_bitmap (w, row, which, left_p) + struct window *w; + struct glyph_row *row; + enum fringe_bitmap_type which; + int left_p; +{ + struct frame *f = XFRAME (WINDOW_FRAME (w)); + Display *display = FRAME_MAC_DISPLAY (f); + WindowPtr window = FRAME_MAC_WINDOW (f); + int x, y, wd, h, dy; + int b1, b2; + unsigned char *bits; + BitMap bitmap; + XGCValues gcv; + GC gc = f->output_data.mac->normal_gc; + struct face *face; + + /* Must clip because of partially visible lines. */ + x_clip_to_row (w, row, gc, 1); + + /* Convert row to frame coordinates. */ + y = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); + + switch (which) + { + case NO_FRINGE_BITMAP: + wd = 0; + h = 0; + break; + + case LEFT_TRUNCATION_BITMAP: + wd = left_width; + h = left_height; + bits = left_bits; + break; + + case OVERLAY_ARROW_BITMAP: + wd = ov_width; + h = ov_height; + bits = ov_bits; + break; + + case RIGHT_TRUNCATION_BITMAP: + wd = right_width; + h = right_height; + bits = right_bits; + break; + + case CONTINUED_LINE_BITMAP: + wd = continued_width; + h = continued_height; + bits = continued_bits; + break; + + case CONTINUATION_LINE_BITMAP: + wd = continuation_width; + h = continuation_height; + bits = continuation_bits; + break; + + case ZV_LINE_BITMAP: + wd = zv_width; + h = zv_height - (y % zv_period); + bits = zv_bits + (y % zv_period); + break; + + default: + abort (); + } + + /* Clip bitmap if too high. */ + if (h > row->height) + h = row->height; + + /* Set dy to the offset in the row to start drawing the bitmap. */ + dy = (row->height - h) / 2; + + /* Draw the bitmap. */ + face = FACE_FROM_ID (f, FRINGE_FACE_ID); + PREPARE_FACE_FOR_DISPLAY (f, face); + + /* Clear left fringe if no bitmap to draw or if bitmap doesn't fill + the fringe. */ + b1 = -1; + if (left_p) + { + if (wd > FRAME_X_LEFT_FRINGE_WIDTH (f)) + wd = FRAME_X_LEFT_FRINGE_WIDTH (f); + x = (WINDOW_TO_FRAME_PIXEL_X (w, 0) + - wd + - (FRAME_X_LEFT_FRINGE_WIDTH (f) - wd) / 2); + if (wd < FRAME_X_LEFT_FRINGE_WIDTH (f) || row->height > h) + { + /* If W has a vertical border to its left, don't draw over it. */ + int border = ((XFASTINT (w->left) > 0 + && !FRAME_HAS_VERTICAL_SCROLL_BARS (f)) + ? 1 : 0); + b1 = (window_box_left (w, -1) + - FRAME_X_LEFT_FRINGE_WIDTH (f) + + border); + b2 = (FRAME_X_LEFT_FRINGE_WIDTH (f) - border); + } + } + else + { + if (wd > FRAME_X_RIGHT_FRINGE_WIDTH (f)) + wd = FRAME_X_RIGHT_FRINGE_WIDTH (f); + x = (window_box_right (w, -1) + + (FRAME_X_RIGHT_FRINGE_WIDTH (f) - wd) / 2); + /* Clear right fringe if no bitmap to draw of if bitmap doesn't fill + the fringe. */ + if (wd < FRAME_X_RIGHT_FRINGE_WIDTH (f) || row->height > h) + { + b1 = window_box_right (w, -1); + b2 = FRAME_X_RIGHT_FRINGE_WIDTH (f); + } + } + + if (b1 >= 0) + { + int header_line_height = WINDOW_DISPLAY_HEADER_LINE_HEIGHT (w); + XGCValues gcv; + gcv.foreground = face->background; + +#if 0 /* MAC_TODO: stipple */ + /* In case the same realized face is used for fringes and + for something displayed in the text (e.g. face `region' on + mono-displays, the fill style may have been changed to + FillSolid in x_draw_glyph_string_background. */ + if (face->stipple) + XSetFillStyle (FRAME_X_DISPLAY (f), face->gc, FillOpaqueStippled); + else + XSetForeground (FRAME_X_DISPLAY (f), face->gc, face->background); +#endif + + XFillRectangle (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + &gcv, + b1, + WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height, + row->y)), + b2, + row->visible_height); + +#if 0 /* MAC_TODO: stipple */ + if (!face->stipple) + XSetForeground (FRAME_X_DISPLAY (f), face->gc, face->foreground); +#endif + } + + if (which == NO_FRINGE_BITMAP) + { + mac_reset_clipping (display, window); + return; + } + + mac_create_bitmap_from_bitmap_data (&bitmap, bits, wd, h); + gcv.foreground = face->foreground; + gcv.background = face->background; + + mac_draw_bitmap (display, window, &gcv, x, y + dy, &bitmap); + + mac_free_bitmap (&bitmap); + mac_reset_clipping (display, window); +} + + +/* Draw fringe bitmaps for glyph row ROW on window W. Call this + function with input blocked. */ + +static void +x_draw_row_fringe_bitmaps (w, row) + struct window *w; + struct glyph_row *row; +{ + struct frame *f = XFRAME (w->frame); + enum fringe_bitmap_type bitmap; + + xassert (interrupt_input_blocked); + + /* If row is completely invisible, because of vscrolling, we + don't have to draw anything. */ + if (row->visible_height <= 0) + return; + + if (FRAME_X_LEFT_FRINGE_WIDTH (f) != 0) + { + /* Decide which bitmap to draw in the left fringe. */ + if (row->overlay_arrow_p) + bitmap = OVERLAY_ARROW_BITMAP; + else if (row->truncated_on_left_p) + bitmap = LEFT_TRUNCATION_BITMAP; + else if (MATRIX_ROW_CONTINUATION_LINE_P (row)) + bitmap = CONTINUATION_LINE_BITMAP; + else if (row->indicate_empty_line_p) + bitmap = ZV_LINE_BITMAP; + else + bitmap = NO_FRINGE_BITMAP; + + x_draw_fringe_bitmap (w, row, bitmap, 1); + } + + if (FRAME_X_RIGHT_FRINGE_WIDTH (f) != 0) + { + /* Decide which bitmap to draw in the right fringe. */ + if (row->truncated_on_right_p) + bitmap = RIGHT_TRUNCATION_BITMAP; + else if (row->continued_p) + bitmap = CONTINUED_LINE_BITMAP; + else if (row->indicate_empty_line_p && FRAME_X_LEFT_FRINGE_WIDTH (f) == 0) + bitmap = ZV_LINE_BITMAP; + else + bitmap = NO_FRINGE_BITMAP; + + x_draw_fringe_bitmap (w, row, bitmap, 0); + } +} + + +/* This is called when starting Emacs and when restarting after + suspend. When starting Emacs, no window is mapped. And nothing + must be done to Emacs's own window if it is suspended (though that + rarely happens). */ + +static void +XTset_terminal_modes () +{ +} + +/* This is called when exiting or suspending Emacs. Exiting will make + the windows go away, and suspending requires no action. */ + +static void +XTreset_terminal_modes () +{ +} + + + +/*********************************************************************** + Output Cursor + ***********************************************************************/ + +/* Set the global variable output_cursor to CURSOR. All cursor + positions are relative to updated_window. */ + +static void +set_output_cursor (cursor) + struct cursor_pos *cursor; +{ + output_cursor.hpos = cursor->hpos; + output_cursor.vpos = cursor->vpos; + output_cursor.x = cursor->x; + output_cursor.y = cursor->y; +} + + +/* Set a nominal cursor position. + + HPOS and VPOS are column/row positions in a window glyph matrix. X + and Y are window text area relative pixel positions. + + If this is done during an update, updated_window will contain the + window that is being updated and the position is the future output + cursor position for that window. If updated_window is null, use + selected_window and display the cursor at the given position. */ + +static void +XTcursor_to (vpos, hpos, y, x) + int vpos, hpos, y, x; +{ + struct window *w; + + /* If updated_window is not set, work on selected_window. */ + if (updated_window) + w = updated_window; + else + w = XWINDOW (selected_window); + + /* Set the output cursor. */ + output_cursor.hpos = hpos; + output_cursor.vpos = vpos; + output_cursor.x = x; + output_cursor.y = y; + + /* If not called as part of an update, really display the cursor. + This will also set the cursor position of W. */ + if (updated_window == NULL) + { + BLOCK_INPUT; + x_display_cursor (w, 1, hpos, vpos, x, y); + XFlush (FRAME_X_DISPLAY (SELECTED_FRAME ())); + UNBLOCK_INPUT; + } +} + + + +/*********************************************************************** + Display Iterator + ***********************************************************************/ + +/* Function prototypes of this page. */ + +static struct face *x_get_glyph_face_and_encoding P_ ((struct frame *, + struct glyph *, + XChar2b *, + int *)); +static struct face *x_get_char_face_and_encoding P_ ((struct frame *, int, + int, XChar2b *, int)); +static XCharStruct *x_per_char_metric P_ ((XFontStruct *, XChar2b *)); +static void x_encode_char P_ ((int, XChar2b *, struct font_info *)); +static void x_append_glyph P_ ((struct it *)); +static void x_append_composite_glyph P_ ((struct it *)); +static void x_append_stretch_glyph P_ ((struct it *it, Lisp_Object, + int, int, double)); +static void x_produce_glyphs P_ ((struct it *)); +static void x_produce_image_glyph P_ ((struct it *it)); + + +/* Return a pointer to per-char metric information in FONT of a + character pointed by B which is a pointer to an XChar2b. */ + +#define PER_CHAR_METRIC(font, b) \ + ((font)->per_char \ + ? ((font)->per_char + (b)->byte2 - (font)->min_char_or_byte2 \ + + (((font)->min_byte1 || (font)->max_byte1) \ + ? (((b)->byte1 - (font)->min_byte1) \ + * ((font)->max_char_or_byte2 - (font)->min_char_or_byte2 + 1)) \ + : 0)) \ + : &((font)->max_bounds)) + + +/* Get metrics of character CHAR2B in FONT. Value is null if CHAR2B + is not contained in the font. */ + +static INLINE XCharStruct * +x_per_char_metric (font, char2b) + XFontStruct *font; + XChar2b *char2b; +{ + /* The result metric information. */ + XCharStruct *pcm = NULL; + + xassert (font && char2b); + + if (font->per_char != NULL) + { + if (font->min_byte1 == 0 && font->max_byte1 == 0) + { + /* min_char_or_byte2 specifies the linear character index + corresponding to the first element of the per_char array, + max_char_or_byte2 is the index of the last character. A + character with non-zero CHAR2B->byte1 is not in the font. + A character with byte2 less than min_char_or_byte2 or + greater max_char_or_byte2 is not in the font. */ + if (char2b->byte1 == 0 + && char2b->byte2 >= font->min_char_or_byte2 + && char2b->byte2 <= font->max_char_or_byte2) + pcm = font->per_char + char2b->byte2 - font->min_char_or_byte2; + } + else + { + /* If either min_byte1 or max_byte1 are nonzero, both + min_char_or_byte2 and max_char_or_byte2 are less than + 256, and the 2-byte character index values corresponding + to the per_char array element N (counting from 0) are: + + byte1 = N/D + min_byte1 + byte2 = N\D + min_char_or_byte2 + + where: + + D = max_char_or_byte2 - min_char_or_byte2 + 1 + / = integer division + \ = integer modulus */ + if (char2b->byte1 >= font->min_byte1 + && char2b->byte1 <= font->max_byte1 + && char2b->byte2 >= font->min_char_or_byte2 + && char2b->byte2 <= font->max_char_or_byte2) + { + pcm = (font->per_char + + ((font->max_char_or_byte2 - font->min_char_or_byte2 + 1) + * (char2b->byte1 - font->min_byte1)) + + (char2b->byte2 - font->min_char_or_byte2)); + } + } + } + else + { + /* If the per_char pointer is null, all glyphs between the first + and last character indexes inclusive have the same + information, as given by both min_bounds and max_bounds. */ + if (char2b->byte2 >= font->min_char_or_byte2 + && char2b->byte2 <= font->max_char_or_byte2) + pcm = &font->max_bounds; + } + + return ((pcm == NULL + || (pcm->width == 0 && (pcm->rbearing - pcm->lbearing) == 0)) + ? NULL : pcm); +} + + +/* Encode CHAR2B using encoding information from FONT_INFO. CHAR2B is + the two-byte form of C. Encoding is returned in *CHAR2B. */ + +static INLINE void +x_encode_char (c, char2b, font_info) + int c; + XChar2b *char2b; + struct font_info *font_info; +{ + int charset = CHAR_CHARSET (c); + XFontStruct *font = font_info->font; + + /* FONT_INFO may define a scheme by which to encode byte1 and byte2. + This may be either a program in a special encoder language or a + fixed encoding. */ + if (font_info->font_encoder) + { + /* It's a program. */ + struct ccl_program *ccl = font_info->font_encoder; + + if (CHARSET_DIMENSION (charset) == 1) + { + ccl->reg[0] = charset; + ccl->reg[1] = char2b->byte2; + } + else + { + ccl->reg[0] = charset; + ccl->reg[1] = char2b->byte1; + ccl->reg[2] = char2b->byte2; + } + + ccl_driver (ccl, NULL, NULL, 0, 0, NULL); + + /* We assume that MSBs are appropriately set/reset by CCL + program. */ + if (font->max_byte1 == 0) /* 1-byte font */ + char2b->byte1 = 0, char2b->byte2 = ccl->reg[1]; + else + char2b->byte1 = ccl->reg[1], char2b->byte2 = ccl->reg[2]; + } + else if (font_info->encoding[charset]) + { + /* Fixed encoding scheme. See fontset.h for the meaning of the + encoding numbers. */ + int enc = font_info->encoding[charset]; + + if ((enc == 1 || enc == 2) + && CHARSET_DIMENSION (charset) == 2) + char2b->byte1 |= 0x80; + + if (enc == 1 || enc == 3) + char2b->byte2 |= 0x80; + + if (enc == 4) + { + int sjis1, sjis2; + + ENCODE_SJIS (char2b->byte1, char2b->byte2, sjis1, sjis2); + char2b->byte1 = sjis1; + char2b->byte2 = sjis2; + } + } +} + + +/* Get face and two-byte form of character C in face FACE_ID on frame + F. The encoding of C is returned in *CHAR2B. MULTIBYTE_P non-zero + means we want to display multibyte text. Value is a pointer to a + realized face that is ready for display. */ + +static INLINE struct face * +x_get_char_face_and_encoding (f, c, face_id, char2b, multibyte_p) + struct frame *f; + int c, face_id; + XChar2b *char2b; + int multibyte_p; +{ + struct face *face = FACE_FROM_ID (f, face_id); + + if (!multibyte_p) + { + /* Unibyte case. We don't have to encode, but we have to make + sure to use a face suitable for unibyte. */ + char2b->byte1 = 0; + char2b->byte2 = c; + face_id = FACE_FOR_CHAR (f, face, c); + face = FACE_FROM_ID (f, face_id); + } + else if (c < 128 && face_id < BASIC_FACE_ID_SENTINEL) + { + /* Case of ASCII in a face known to fit ASCII. */ + char2b->byte1 = 0; + char2b->byte2 = c; + } + else + { + int c1, c2, charset; + + /* Split characters into bytes. If c2 is -1 afterwards, C is + really a one-byte character so that byte1 is zero. */ + SPLIT_CHAR (c, charset, c1, c2); + if (c2 > 0) + char2b->byte1 = c1, char2b->byte2 = c2; + else + char2b->byte1 = 0, char2b->byte2 = c1; + + /* Maybe encode the character in *CHAR2B. */ + if (face->font != NULL) + { + struct font_info *font_info + = FONT_INFO_FROM_ID (f, face->font_info_id); + if (font_info) + x_encode_char (c, char2b, font_info); + } + } + + /* Make sure X resources of the face are allocated. */ + xassert (face != NULL); + PREPARE_FACE_FOR_DISPLAY (f, face); + + return face; +} + + +/* Get face and two-byte form of character glyph GLYPH on frame F. + The encoding of GLYPH->u.ch is returned in *CHAR2B. Value is + a pointer to a realized face that is ready for display. */ + +static INLINE struct face * +x_get_glyph_face_and_encoding (f, glyph, char2b, two_byte_p) + struct frame *f; + struct glyph *glyph; + XChar2b *char2b; + int *two_byte_p; +{ + struct face *face; + + xassert (glyph->type == CHAR_GLYPH); + face = FACE_FROM_ID (f, glyph->face_id); + + if (two_byte_p) + *two_byte_p = 0; + + if (!glyph->multibyte_p) + { + /* Unibyte case. We don't have to encode, but we have to make + sure to use a face suitable for unibyte. */ + char2b->byte1 = 0; + char2b->byte2 = glyph->u.ch; + } + else if (glyph->u.ch < 128 + && glyph->face_id < BASIC_FACE_ID_SENTINEL) + { + /* Case of ASCII in a face known to fit ASCII. */ + char2b->byte1 = 0; + char2b->byte2 = glyph->u.ch; + } + else + { + int c1, c2, charset; + + /* Split characters into bytes. If c2 is -1 afterwards, C is + really a one-byte character so that byte1 is zero. */ + SPLIT_CHAR (glyph->u.ch, charset, c1, c2); + if (c2 > 0) + char2b->byte1 = c1, char2b->byte2 = c2; + else + char2b->byte1 = 0, char2b->byte2 = c1; + + /* Maybe encode the character in *CHAR2B. */ + if (charset != CHARSET_ASCII) + { + struct font_info *font_info + = FONT_INFO_FROM_ID (f, face->font_info_id); + if (font_info) + { + x_encode_char (glyph->u.ch, char2b, font_info); + if (two_byte_p) + *two_byte_p + = ((XFontStruct *) (font_info->font))->max_byte1 > 0; + } + } + } + + /* Make sure X resources of the face are allocated. */ + xassert (face != NULL); + PREPARE_FACE_FOR_DISPLAY (f, face); + return face; +} + + +/* Store one glyph for IT->char_to_display in IT->glyph_row. + Called from x_produce_glyphs when IT->glyph_row is non-null. */ + +static INLINE void +x_append_glyph (it) + struct it *it; +{ + struct glyph *glyph; + enum glyph_row_area area = it->area; + + xassert (it->glyph_row); + xassert (it->char_to_display != '\n' && it->char_to_display != '\t'); + + glyph = it->glyph_row->glyphs[area] + it->glyph_row->used[area]; + if (glyph < it->glyph_row->glyphs[area + 1]) + { + glyph->charpos = CHARPOS (it->position); + glyph->object = it->object; + glyph->pixel_width = it->pixel_width; + glyph->voffset = it->voffset; + glyph->type = CHAR_GLYPH; + glyph->multibyte_p = it->multibyte_p; + glyph->left_box_line_p = it->start_of_box_run_p; + glyph->right_box_line_p = it->end_of_box_run_p; + glyph->overlaps_vertically_p = (it->phys_ascent > it->ascent + || it->phys_descent > it->descent); + glyph->padding_p = 0; + glyph->glyph_not_available_p = it->glyph_not_available_p; + glyph->face_id = it->face_id; + glyph->u.ch = it->char_to_display; + ++it->glyph_row->used[area]; + } +} + +/* Store one glyph for the composition IT->cmp_id in IT->glyph_row. + Called from x_produce_glyphs when IT->glyph_row is non-null. */ + +static INLINE void +x_append_composite_glyph (it) + struct it *it; +{ + struct glyph *glyph; + enum glyph_row_area area = it->area; + + xassert (it->glyph_row); + + glyph = it->glyph_row->glyphs[area] + it->glyph_row->used[area]; + if (glyph < it->glyph_row->glyphs[area + 1]) + { + glyph->charpos = CHARPOS (it->position); + glyph->object = it->object; + glyph->pixel_width = it->pixel_width; + glyph->voffset = it->voffset; + glyph->type = COMPOSITE_GLYPH; + glyph->multibyte_p = it->multibyte_p; + glyph->left_box_line_p = it->start_of_box_run_p; + glyph->right_box_line_p = it->end_of_box_run_p; + glyph->overlaps_vertically_p = (it->phys_ascent > it->ascent + || it->phys_descent > it->descent); + glyph->padding_p = 0; + glyph->glyph_not_available_p = 0; + glyph->face_id = it->face_id; + glyph->u.cmp_id = it->cmp_id; + ++it->glyph_row->used[area]; + } +} + + +/* Change IT->ascent and IT->height according to the setting of + IT->voffset. */ + +static INLINE void +take_vertical_position_into_account (it) + struct it *it; +{ + if (it->voffset) + { + if (it->voffset < 0) + /* Increase the ascent so that we can display the text higher + in the line. */ + it->ascent += abs (it->voffset); + else + /* Increase the descent so that we can display the text lower + in the line. */ + it->descent += it->voffset; + } +} + + +/* Produce glyphs/get display metrics for the image IT is loaded with. + See the description of struct display_iterator in dispextern.h for + an overview of struct display_iterator. */ + +static void +x_produce_image_glyph (it) + struct it *it; +{ + struct image *img; + struct face *face; + + xassert (it->what == IT_IMAGE); + + face = FACE_FROM_ID (it->f, it->face_id); + img = IMAGE_FROM_ID (it->f, it->image_id); + xassert (img); + + /* Make sure X resources of the face and image are loaded. */ + PREPARE_FACE_FOR_DISPLAY (it->f, face); + prepare_image_for_display (it->f, img); + + it->ascent = it->phys_ascent = image_ascent (img, face); + it->descent = it->phys_descent = img->height + 2 * img->vmargin - it->ascent; + it->pixel_width = img->width + 2 * img->hmargin; + + it->nglyphs = 1; + + if (face->box != FACE_NO_BOX) + { + if (face->box_line_width > 0) + { + it->ascent += face->box_line_width; + it->descent += face->box_line_width; + } + + if (it->start_of_box_run_p) + it->pixel_width += abs (face->box_line_width); + if (it->end_of_box_run_p) + it->pixel_width += abs (face->box_line_width); + } + + take_vertical_position_into_account (it); + + if (it->glyph_row) + { + struct glyph *glyph; + enum glyph_row_area area = it->area; + + glyph = it->glyph_row->glyphs[area] + it->glyph_row->used[area]; + if (glyph < it->glyph_row->glyphs[area + 1]) + { + glyph->charpos = CHARPOS (it->position); + glyph->object = it->object; + glyph->pixel_width = it->pixel_width; + glyph->voffset = it->voffset; + glyph->type = IMAGE_GLYPH; + glyph->multibyte_p = it->multibyte_p; + glyph->left_box_line_p = it->start_of_box_run_p; + glyph->right_box_line_p = it->end_of_box_run_p; + glyph->overlaps_vertically_p = 0; + glyph->padding_p = 0; + glyph->glyph_not_available_p = 0; + glyph->face_id = it->face_id; + glyph->u.img_id = img->id; + ++it->glyph_row->used[area]; + } + } +} + + +/* Append a stretch glyph to IT->glyph_row. OBJECT is the source + of the glyph, WIDTH and HEIGHT are the width and height of the + stretch. ASCENT is the percentage/100 of HEIGHT to use for the + ascent of the glyph (0 <= ASCENT <= 1). */ + +static void +x_append_stretch_glyph (it, object, width, height, ascent) + struct it *it; + Lisp_Object object; + int width, height; + double ascent; +{ + struct glyph *glyph; + enum glyph_row_area area = it->area; + + xassert (ascent >= 0 && ascent <= 1); + + glyph = it->glyph_row->glyphs[area] + it->glyph_row->used[area]; + if (glyph < it->glyph_row->glyphs[area + 1]) + { + glyph->charpos = CHARPOS (it->position); + glyph->object = object; + glyph->pixel_width = width; + glyph->voffset = it->voffset; + glyph->type = STRETCH_GLYPH; + glyph->multibyte_p = it->multibyte_p; + glyph->left_box_line_p = it->start_of_box_run_p; + glyph->right_box_line_p = it->end_of_box_run_p; + glyph->overlaps_vertically_p = 0; + glyph->padding_p = 0; + glyph->glyph_not_available_p = 0; + glyph->face_id = it->face_id; + glyph->u.stretch.ascent = height * ascent; + glyph->u.stretch.height = height; + ++it->glyph_row->used[area]; + } +} + + +/* Produce a stretch glyph for iterator IT. IT->object is the value + of the glyph property displayed. The value must be a list + `(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs + being recognized: + + 1. `:width WIDTH' specifies that the space should be WIDTH * + canonical char width wide. WIDTH may be an integer or floating + point number. + + 2. `:relative-width FACTOR' specifies that the width of the stretch + should be computed from the width of the first character having the + `glyph' property, and should be FACTOR times that width. + + 3. `:align-to HPOS' specifies that the space should be wide enough + to reach HPOS, a value in canonical character units. + + Exactly one of the above pairs must be present. + + 4. `:height HEIGHT' specifies that the height of the stretch produced + should be HEIGHT, measured in canonical character units. + + 5. `:relative-height FACTOR' specifies that the height of the + stretch should be FACTOR times the height of the characters having + the glyph property. + + Either none or exactly one of 4 or 5 must be present. + + 6. `:ascent ASCENT' specifies that ASCENT percent of the height + of the stretch should be used for the ascent of the stretch. + ASCENT must be in the range 0 <= ASCENT <= 100. */ + +#define NUMVAL(X) \ + ((INTEGERP (X) || FLOATP (X)) \ + ? XFLOATINT (X) \ + : - 1) + + +static void +x_produce_stretch_glyph (it) + struct it *it; +{ + /* (space :width WIDTH :height HEIGHT. */ +#if GLYPH_DEBUG + extern Lisp_Object Qspace; +#endif + extern Lisp_Object QCwidth, QCheight, QCascent; + extern Lisp_Object QCrelative_width, QCrelative_height; + extern Lisp_Object QCalign_to; + Lisp_Object prop, plist; + double width = 0, height = 0, ascent = 0; + struct face *face = FACE_FROM_ID (it->f, it->face_id); + XFontStruct *font = face->font ? face->font : FRAME_FONT (it->f); + + PREPARE_FACE_FOR_DISPLAY (it->f, face); + + /* List should start with `space'. */ + xassert (CONSP (it->object) && EQ (XCAR (it->object), Qspace)); + plist = XCDR (it->object); + + /* Compute the width of the stretch. */ + if (prop = Fplist_get (plist, QCwidth), + NUMVAL (prop) > 0) + /* Absolute width `:width WIDTH' specified and valid. */ + width = NUMVAL (prop) * CANON_X_UNIT (it->f); + else if (prop = Fplist_get (plist, QCrelative_width), + NUMVAL (prop) > 0) + { + /* Relative width `:relative-width FACTOR' specified and valid. + Compute the width of the characters having the `glyph' + property. */ + struct it it2; + unsigned char *p = BYTE_POS_ADDR (IT_BYTEPOS (*it)); + + it2 = *it; + if (it->multibyte_p) + { + int maxlen = ((IT_BYTEPOS (*it) >= GPT ? ZV : GPT) + - IT_BYTEPOS (*it)); + it2.c = STRING_CHAR_AND_LENGTH (p, maxlen, it2.len); + } + else + it2.c = *p, it2.len = 1; + + it2.glyph_row = NULL; + it2.what = IT_CHARACTER; + x_produce_glyphs (&it2); + width = NUMVAL (prop) * it2.pixel_width; + } + else if (prop = Fplist_get (plist, QCalign_to), + NUMVAL (prop) > 0) + width = NUMVAL (prop) * CANON_X_UNIT (it->f) - it->current_x; + else + /* Nothing specified -> width defaults to canonical char width. */ + width = CANON_X_UNIT (it->f); + + /* Compute height. */ + if (prop = Fplist_get (plist, QCheight), + NUMVAL (prop) > 0) + height = NUMVAL (prop) * CANON_Y_UNIT (it->f); + else if (prop = Fplist_get (plist, QCrelative_height), + NUMVAL (prop) > 0) + height = FONT_HEIGHT (font) * NUMVAL (prop); + else + height = FONT_HEIGHT (font); + + /* Compute percentage of height used for ascent. If + `:ascent ASCENT' is present and valid, use that. Otherwise, + derive the ascent from the font in use. */ + if (prop = Fplist_get (plist, QCascent), + NUMVAL (prop) > 0 && NUMVAL (prop) <= 100) + ascent = NUMVAL (prop) / 100.0; + else + ascent = (double) FONT_BASE (font) / FONT_HEIGHT (font); + + if (width <= 0) + width = 1; + if (height <= 0) + height = 1; + + if (it->glyph_row) + { + Lisp_Object object = it->stack[it->sp - 1].string; + if (!STRINGP (object)) + object = it->w->buffer; + x_append_stretch_glyph (it, object, width, height, ascent); + } + + it->pixel_width = width; + it->ascent = it->phys_ascent = height * ascent; + it->descent = it->phys_descent = height - it->ascent; + it->nglyphs = 1; + + if (face->box != FACE_NO_BOX) + { + if (face->box_line_width > 0) + { + it->ascent += face->box_line_width; + it->descent += face->box_line_width; + } + + if (it->start_of_box_run_p) + it->pixel_width += abs (face->box_line_width); + if (it->end_of_box_run_p) + it->pixel_width += abs (face->box_line_width); + } + + take_vertical_position_into_account (it); +} + +/* Return proper value to be used as baseline offset of font that has + ASCENT and DESCENT to draw characters by the font at the vertical + center of the line of frame F. + + Here, out task is to find the value of BOFF in the following figure; + + -------------------------+-----------+- + -+-+---------+-+ | | + | | | | | | + | | | | F_ASCENT F_HEIGHT + | | | ASCENT | | + HEIGHT | | | | | + | | |-|-+------+-----------|------- baseline + | | | | BOFF | | + | |---------|-+-+ | | + | | | DESCENT | | + -+-+---------+-+ F_DESCENT | + -------------------------+-----------+- + + -BOFF + DESCENT + (F_HEIGHT - HEIGHT) / 2 = F_DESCENT + BOFF = DESCENT + (F_HEIGHT - HEIGHT) / 2 - F_DESCENT + DESCENT = FONT->descent + HEIGHT = FONT_HEIGHT (FONT) + F_DESCENT = (F->output_data.x->font->descent + - F->output_data.x->baseline_offset) + F_HEIGHT = FRAME_LINE_HEIGHT (F) +*/ + +#define VCENTER_BASELINE_OFFSET(FONT, F) \ + (FONT_DESCENT (FONT) \ + + (FRAME_LINE_HEIGHT ((F)) - FONT_HEIGHT ((FONT)) \ + + (FRAME_LINE_HEIGHT ((F)) > FONT_HEIGHT ((FONT)))) / 2 \ + - (FONT_DESCENT (FRAME_FONT (F)) - FRAME_BASELINE_OFFSET (F))) + +/* Produce glyphs/get display metrics for the display element IT is + loaded with. See the description of struct display_iterator in + dispextern.h for an overview of struct display_iterator. */ + +static void +x_produce_glyphs (it) + struct it *it; +{ + it->glyph_not_available_p = 0; + + if (it->what == IT_CHARACTER) + { + XChar2b char2b; + XFontStruct *font; + struct face *face = FACE_FROM_ID (it->f, it->face_id); + XCharStruct *pcm; + int font_not_found_p; + struct font_info *font_info; + int boff; /* baseline offset */ + /* We may change it->multibyte_p upon unibyte<->multibyte + conversion. So, save the current value now and restore it + later. + + Note: It seems that we don't have to record multibyte_p in + struct glyph because the character code itself tells if or + not the character is multibyte. Thus, in the future, we must + consider eliminating the field `multibyte_p' in the struct + glyph. + */ + int saved_multibyte_p = it->multibyte_p; + + /* Maybe translate single-byte characters to multibyte, or the + other way. */ + it->char_to_display = it->c; + if (!ASCII_BYTE_P (it->c)) + { + if (unibyte_display_via_language_environment + && SINGLE_BYTE_CHAR_P (it->c) + && (it->c >= 0240 + || !NILP (Vnonascii_translation_table))) + { + it->char_to_display = unibyte_char_to_multibyte (it->c); + it->multibyte_p = 1; + it->face_id = FACE_FOR_CHAR (it->f, face, it->char_to_display); + face = FACE_FROM_ID (it->f, it->face_id); + } + else if (!SINGLE_BYTE_CHAR_P (it->c) + && !it->multibyte_p) + { + it->multibyte_p = 1; + it->face_id = FACE_FOR_CHAR (it->f, face, it->char_to_display); + face = FACE_FROM_ID (it->f, it->face_id); + } + } + + /* Get font to use. Encode IT->char_to_display. */ + x_get_char_face_and_encoding (it->f, it->char_to_display, + it->face_id, &char2b, + it->multibyte_p); + font = face->font; + + /* When no suitable font found, use the default font. */ + font_not_found_p = font == NULL; + if (font_not_found_p) + { + font = FRAME_FONT (it->f); + boff = it->f->output_data.mac->baseline_offset; + font_info = NULL; + } + else + { + font_info = FONT_INFO_FROM_ID (it->f, face->font_info_id); + boff = font_info->baseline_offset; + if (font_info->vertical_centering) + boff = VCENTER_BASELINE_OFFSET (font, it->f) - boff; + } + + if (it->char_to_display >= ' ' + && (!it->multibyte_p || it->char_to_display < 128)) + { + /* Either unibyte or ASCII. */ + int stretched_p; + + it->nglyphs = 1; + + pcm = x_per_char_metric (font, &char2b); + it->ascent = FONT_BASE (font) + boff; + it->descent = FONT_DESCENT (font) - boff; + + if (pcm) + { + it->phys_ascent = pcm->ascent + boff; + it->phys_descent = pcm->descent - boff; + it->pixel_width = pcm->width; + } + else + { + it->glyph_not_available_p = 1; + it->phys_ascent = FONT_BASE (font) + boff; + it->phys_descent = FONT_DESCENT (font) - boff; + it->pixel_width = FONT_WIDTH (font); + } + + /* If this is a space inside a region of text with + `space-width' property, change its width. */ + stretched_p = it->char_to_display == ' ' && !NILP (it->space_width); + if (stretched_p) + it->pixel_width *= XFLOATINT (it->space_width); + + /* If face has a box, add the box thickness to the character + height. If character has a box line to the left and/or + right, add the box line width to the character's width. */ + if (face->box != FACE_NO_BOX) + { + int thick = face->box_line_width; + + if (thick > 0) + { + it->ascent += thick; + it->descent += thick; + } + else + thick = -thick; + + if (it->start_of_box_run_p) + it->pixel_width += thick; + if (it->end_of_box_run_p) + it->pixel_width += thick; + } + + /* If face has an overline, add the height of the overline + (1 pixel) and a 1 pixel margin to the character height. */ + if (face->overline_p) + it->ascent += 2; + + take_vertical_position_into_account (it); + + /* If we have to actually produce glyphs, do it. */ + if (it->glyph_row) + { + if (stretched_p) + { + /* Translate a space with a `space-width' property + into a stretch glyph. */ + double ascent = (double) FONT_BASE (font) + / FONT_HEIGHT (font); + x_append_stretch_glyph (it, it->object, it->pixel_width, + it->ascent + it->descent, ascent); + } + else + x_append_glyph (it); + + /* If characters with lbearing or rbearing are displayed + in this line, record that fact in a flag of the + glyph row. This is used to optimize X output code. */ + if (pcm && (pcm->lbearing < 0 || pcm->rbearing > pcm->width)) + it->glyph_row->contains_overlapping_glyphs_p = 1; + } + } + else if (it->char_to_display == '\n') + { + /* A newline has no width but we need the height of the line. */ + it->pixel_width = 0; + it->nglyphs = 0; + it->ascent = it->phys_ascent = FONT_BASE (font) + boff; + it->descent = it->phys_descent = FONT_DESCENT (font) - boff; + + if (face->box != FACE_NO_BOX + && face->box_line_width > 0) + { + it->ascent += face->box_line_width; + it->descent += face->box_line_width; + } + } + else if (it->char_to_display == '\t') + { + int tab_width = it->tab_width * CANON_X_UNIT (it->f); + int x = it->current_x + it->continuation_lines_width; + int next_tab_x = ((1 + x + tab_width - 1) / tab_width) * tab_width; + + /* If the distance from the current position to the next tab + stop is less than a canonical character width, use the + tab stop after that. */ + if (next_tab_x - x < CANON_X_UNIT (it->f)) + next_tab_x += tab_width; + + it->pixel_width = next_tab_x - x; + it->nglyphs = 1; + it->ascent = it->phys_ascent = FONT_BASE (font) + boff; + it->descent = it->phys_descent = FONT_DESCENT (font) - boff; + + if (it->glyph_row) + { + double ascent = (double) it->ascent / (it->ascent + it->descent); + x_append_stretch_glyph (it, it->object, it->pixel_width, + it->ascent + it->descent, ascent); + } + } + else + { + /* A multi-byte character. Assume that the display width of the + character is the width of the character multiplied by the + width of the font. */ + + /* If we found a font, this font should give us the right + metrics. If we didn't find a font, use the frame's + default font and calculate the width of the character + from the charset width; this is what old redisplay code + did. */ + pcm = x_per_char_metric (font, &char2b); + if (font_not_found_p || !pcm) + { + int charset = CHAR_CHARSET (it->char_to_display); + + it->glyph_not_available_p = 1; + it->pixel_width = (FONT_WIDTH (FRAME_FONT (it->f)) + * CHARSET_WIDTH (charset)); + it->phys_ascent = FONT_BASE (font) + boff; + it->phys_descent = FONT_DESCENT (font) - boff; + } + else + { + it->pixel_width = pcm->width; + it->phys_ascent = pcm->ascent + boff; + it->phys_descent = pcm->descent - boff; + if (it->glyph_row + && (pcm->lbearing < 0 + || pcm->rbearing > pcm->width)) + it->glyph_row->contains_overlapping_glyphs_p = 1; + } + it->nglyphs = 1; + it->ascent = FONT_BASE (font) + boff; + it->descent = FONT_DESCENT (font) - boff; + if (face->box != FACE_NO_BOX) + { + int thick = face->box_line_width; + + if (thick > 0) + { + it->ascent += thick; + it->descent += thick; + } + else + thick = - thick; + + if (it->start_of_box_run_p) + it->pixel_width += thick; + if (it->end_of_box_run_p) + it->pixel_width += thick; + } + + /* If face has an overline, add the height of the overline + (1 pixel) and a 1 pixel margin to the character height. */ + if (face->overline_p) + it->ascent += 2; + + take_vertical_position_into_account (it); + + if (it->glyph_row) + x_append_glyph (it); + } + it->multibyte_p = saved_multibyte_p; + } + else if (it->what == IT_COMPOSITION) + { + /* Note: A composition is represented as one glyph in the + glyph matrix. There are no padding glyphs. */ + XChar2b char2b; + XFontStruct *font; + struct face *face = FACE_FROM_ID (it->f, it->face_id); + XCharStruct *pcm; + int font_not_found_p; + struct font_info *font_info; + int boff; /* baseline offset */ + struct composition *cmp = composition_table[it->cmp_id]; + + /* Maybe translate single-byte characters to multibyte. */ + it->char_to_display = it->c; + if (unibyte_display_via_language_environment + && SINGLE_BYTE_CHAR_P (it->c) + && (it->c >= 0240 + || (it->c >= 0200 + && !NILP (Vnonascii_translation_table)))) + { + it->char_to_display = unibyte_char_to_multibyte (it->c); + } + + /* Get face and font to use. Encode IT->char_to_display. */ + it->face_id = FACE_FOR_CHAR (it->f, face, it->char_to_display); + face = FACE_FROM_ID (it->f, it->face_id); + x_get_char_face_and_encoding (it->f, it->char_to_display, + it->face_id, &char2b, it->multibyte_p); + font = face->font; + + /* When no suitable font found, use the default font. */ + font_not_found_p = font == NULL; + if (font_not_found_p) + { + font = FRAME_FONT (it->f); + boff = it->f->output_data.mac->baseline_offset; + font_info = NULL; + } + else + { + font_info = FONT_INFO_FROM_ID (it->f, face->font_info_id); + boff = font_info->baseline_offset; + if (font_info->vertical_centering) + boff = VCENTER_BASELINE_OFFSET (font, it->f) - boff; + } + + /* There are no padding glyphs, so there is only one glyph to + produce for the composition. Important is that pixel_width, + ascent and descent are the values of what is drawn by + draw_glyphs (i.e. the values of the overall glyphs composed). */ + it->nglyphs = 1; + + /* If we have not yet calculated pixel size data of glyphs of + the composition for the current face font, calculate them + now. Theoretically, we have to check all fonts for the + glyphs, but that requires much time and memory space. So, + here we check only the font of the first glyph. This leads + to incorrect display very rarely, and C-l (recenter) can + correct the display anyway. */ + if (cmp->font != (void *) font) + { + /* Ascent and descent of the font of the first character of + this composition (adjusted by baseline offset). Ascent + and descent of overall glyphs should not be less than + them respectively. */ + int font_ascent = FONT_BASE (font) + boff; + int font_descent = FONT_DESCENT (font) - boff; + /* Bounding box of the overall glyphs. */ + int leftmost, rightmost, lowest, highest; + int i, width, ascent, descent; + + cmp->font = (void *) font; + + /* Initialize the bounding box. */ + pcm = x_per_char_metric (font, &char2b); + if (pcm) + { + width = pcm->width; + ascent = pcm->ascent; + descent = pcm->descent; + } + else + { + width = FONT_WIDTH (font); + ascent = FONT_BASE (font); + descent = FONT_DESCENT (font); + } + + rightmost = width; + lowest = - descent + boff; + highest = ascent + boff; + leftmost = 0; + + if (font_info + && font_info->default_ascent + && CHAR_TABLE_P (Vuse_default_ascent) + && !NILP (Faref (Vuse_default_ascent, + make_number (it->char_to_display)))) + highest = font_info->default_ascent + boff; + + /* Draw the first glyph at the normal position. It may be + shifted to right later if some other glyphs are drawn at + the left. */ + cmp->offsets[0] = 0; + cmp->offsets[1] = boff; + + /* Set cmp->offsets for the remaining glyphs. */ + for (i = 1; i < cmp->glyph_len; i++) + { + int left, right, btm, top; + int ch = COMPOSITION_GLYPH (cmp, i); + int face_id = FACE_FOR_CHAR (it->f, face, ch); + + face = FACE_FROM_ID (it->f, face_id); + x_get_char_face_and_encoding (it->f, ch, face->id, &char2b, + it->multibyte_p); + font = face->font; + if (font == NULL) + { + font = FRAME_FONT (it->f); + boff = it->f->output_data.mac->baseline_offset; + font_info = NULL; + } + else + { + font_info + = FONT_INFO_FROM_ID (it->f, face->font_info_id); + boff = font_info->baseline_offset; + if (font_info->vertical_centering) + boff = VCENTER_BASELINE_OFFSET (font, it->f) - boff; + } + + pcm = x_per_char_metric (font, &char2b); + if (pcm) + { + width = pcm->width; + ascent = pcm->ascent; + descent = pcm->descent; + } + else + { + width = FONT_WIDTH (font); + ascent = 1; + descent = 0; + } + + if (cmp->method != COMPOSITION_WITH_RULE_ALTCHARS) + { + /* Relative composition with or without + alternate chars. */ + left = (leftmost + rightmost - width) / 2; + btm = - descent + boff; + if (font_info && font_info->relative_compose + && (! CHAR_TABLE_P (Vignore_relative_composition) + || NILP (Faref (Vignore_relative_composition, + make_number (ch))))) + { + + if (- descent >= font_info->relative_compose) + /* One extra pixel between two glyphs. */ + btm = highest + 1; + else if (ascent <= 0) + /* One extra pixel between two glyphs. */ + btm = lowest - 1 - ascent - descent; + } + } + else + { + /* A composition rule is specified by an integer + value that encodes global and new reference + points (GREF and NREF). GREF and NREF are + specified by numbers as below: + + 0---1---2 -- ascent + | | + | | + | | + 9--10--11 -- center + | | + ---3---4---5--- baseline + | | + 6---7---8 -- descent + */ + int rule = COMPOSITION_RULE (cmp, i); + int gref, nref, grefx, grefy, nrefx, nrefy; + + COMPOSITION_DECODE_RULE (rule, gref, nref); + grefx = gref % 3, nrefx = nref % 3; + grefy = gref / 3, nrefy = nref / 3; + + left = (leftmost + + grefx * (rightmost - leftmost) / 2 + - nrefx * width / 2); + btm = ((grefy == 0 ? highest + : grefy == 1 ? 0 + : grefy == 2 ? lowest + : (highest + lowest) / 2) + - (nrefy == 0 ? ascent + descent + : nrefy == 1 ? descent - boff + : nrefy == 2 ? 0 + : (ascent + descent) / 2)); + } + + cmp->offsets[i * 2] = left; + cmp->offsets[i * 2 + 1] = btm + descent; + + /* Update the bounding box of the overall glyphs. */ + right = left + width; + top = btm + descent + ascent; + if (left < leftmost) + leftmost = left; + if (right > rightmost) + rightmost = right; + if (top > highest) + highest = top; + if (btm < lowest) + lowest = btm; + } + + /* If there are glyphs whose x-offsets are negative, + shift all glyphs to the right and make all x-offsets + non-negative. */ + if (leftmost < 0) + { + for (i = 0; i < cmp->glyph_len; i++) + cmp->offsets[i * 2] -= leftmost; + rightmost -= leftmost; + } + + cmp->pixel_width = rightmost; + cmp->ascent = highest; + cmp->descent = - lowest; + if (cmp->ascent < font_ascent) + cmp->ascent = font_ascent; + if (cmp->descent < font_descent) + cmp->descent = font_descent; + } + + it->pixel_width = cmp->pixel_width; + it->ascent = it->phys_ascent = cmp->ascent; + it->descent = it->phys_descent = cmp->descent; + + if (face->box != FACE_NO_BOX) + { + int thick = face->box_line_width; + + if (thick > 0) + { + it->ascent += thick; + it->descent += thick; + } + else + thick = - thick; + + if (it->start_of_box_run_p) + it->pixel_width += thick; + if (it->end_of_box_run_p) + it->pixel_width += thick; + } + + /* If face has an overline, add the height of the overline + (1 pixel) and a 1 pixel margin to the character height. */ + if (face->overline_p) + it->ascent += 2; + + take_vertical_position_into_account (it); + + if (it->glyph_row) + x_append_composite_glyph (it); + } + else if (it->what == IT_IMAGE) + x_produce_image_glyph (it); + else if (it->what == IT_STRETCH) + x_produce_stretch_glyph (it); + + /* Accumulate dimensions. Note: can't assume that it->descent > 0 + because this isn't true for images with `:ascent 100'. */ + xassert (it->ascent >= 0 && it->descent >= 0); + if (it->area == TEXT_AREA) + it->current_x += it->pixel_width; + + it->descent += it->extra_line_spacing; + + it->max_ascent = max (it->max_ascent, it->ascent); + it->max_descent = max (it->max_descent, it->descent); + it->max_phys_ascent = max (it->max_phys_ascent, it->phys_ascent); + it->max_phys_descent = max (it->max_phys_descent, it->phys_descent); +} + + +/* Estimate the pixel height of the mode or top line on frame F. + FACE_ID specifies what line's height to estimate. */ + +int +x_estimate_mode_line_height (f, face_id) + struct frame *f; + enum face_id face_id; +{ + int height = FONT_HEIGHT (FRAME_FONT (f)); + + /* This function is called so early when Emacs starts that the face + cache and mode line face are not yet initialized. */ + if (FRAME_FACE_CACHE (f)) + { + struct face *face = FACE_FROM_ID (f, face_id); + if (face) + { + if (face->font) + height = FONT_HEIGHT (face->font); + if (face->box_line_width > 0) + height += 2 * face->box_line_width; + } + } + + return height; +} + + +/*********************************************************************** + Glyph display + ***********************************************************************/ + +/* A sequence of glyphs to be drawn in the same face. + + This data structure is not really completely X specific, so it + could possibly, at least partially, be useful for other systems. It + is currently not part of the external redisplay interface because + it's not clear what other systems will need. */ + +struct glyph_string +{ + /* X-origin of the string. */ + int x; + + /* Y-origin and y-position of the base line of this string. */ + int y, ybase; + + /* The width of the string, not including a face extension. */ + int width; + + /* The width of the string, including a face extension. */ + int background_width; + + /* The height of this string. This is the height of the line this + string is drawn in, and can be different from the height of the + font the string is drawn in. */ + int height; + + /* Number of pixels this string overwrites in front of its x-origin. + This number is zero if the string has an lbearing >= 0; it is + -lbearing, if the string has an lbearing < 0. */ + int left_overhang; + + /* Number of pixels this string overwrites past its right-most + nominal x-position, i.e. x + width. Zero if the string's + rbearing is <= its nominal width, rbearing - width otherwise. */ + int right_overhang; + + /* The frame on which the glyph string is drawn. */ + struct frame *f; + + /* The window on which the glyph string is drawn. */ + struct window *w; + + /* X display and window for convenience. */ + Display *display; + Window window; + + /* The glyph row for which this string was built. It determines the + y-origin and height of the string. */ + struct glyph_row *row; + + /* The area within row. */ + enum glyph_row_area area; + + /* Characters to be drawn, and number of characters. */ + XChar2b *char2b; + int nchars; + + /* A face-override for drawing cursors, mouse face and similar. */ + enum draw_glyphs_face hl; + + /* Face in which this string is to be drawn. */ + struct face *face; + + /* Font in which this string is to be drawn. */ + XFontStruct *font; + + /* Font info for this string. */ + struct font_info *font_info; + + /* Non-null means this string describes (part of) a composition. + All characters from char2b are drawn composed. */ + struct composition *cmp; + + /* Index of this glyph string's first character in the glyph + definition of CMP. If this is zero, this glyph string describes + the first character of a composition. */ + int gidx; + + /* 1 means this glyph strings face has to be drawn to the right end + of the window's drawing area. */ + unsigned extends_to_end_of_line_p : 1; + + /* 1 means the background of this string has been drawn. */ + unsigned background_filled_p : 1; + + /* 1 means glyph string must be drawn with 16-bit functions. */ + unsigned two_byte_p : 1; + + /* 1 means that the original font determined for drawing this glyph + string could not be loaded. The member `font' has been set to + the frame's default font in this case. */ + unsigned font_not_found_p : 1; + + /* 1 means that the face in which this glyph string is drawn has a + stipple pattern. */ + unsigned stippled_p : 1; + + /* 1 means only the foreground of this glyph string must be drawn, + and we should use the physical height of the line this glyph + string appears in as clip rect. */ + unsigned for_overlaps_p : 1; + + /* The GC to use for drawing this glyph string. */ + GC gc; + + /* A pointer to the first glyph in the string. This glyph + corresponds to char2b[0]. Needed to draw rectangles if + font_not_found_p is 1. */ + struct glyph *first_glyph; + + /* Image, if any. */ + struct image *img; + + struct glyph_string *next, *prev; +}; + + +#if 0 + +static void +x_dump_glyph_string (s) + struct glyph_string *s; +{ + fprintf (stderr, "glyph string\n"); + fprintf (stderr, " x, y, w, h = %d, %d, %d, %d\n", + s->x, s->y, s->width, s->height); + fprintf (stderr, " ybase = %d\n", s->ybase); + fprintf (stderr, " hl = %d\n", s->hl); + fprintf (stderr, " left overhang = %d, right = %d\n", + s->left_overhang, s->right_overhang); + fprintf (stderr, " nchars = %d\n", s->nchars); + fprintf (stderr, " extends to end of line = %d\n", + s->extends_to_end_of_line_p); + fprintf (stderr, " font height = %d\n", FONT_HEIGHT (s->font)); + fprintf (stderr, " bg width = %d\n", s->background_width); +} + +#endif /* GLYPH_DEBUG */ + + + +static void x_append_glyph_string_lists P_ ((struct glyph_string **, + struct glyph_string **, + struct glyph_string *, + struct glyph_string *)); +static void x_prepend_glyph_string_lists P_ ((struct glyph_string **, + struct glyph_string **, + struct glyph_string *, + struct glyph_string *)); +static void x_append_glyph_string P_ ((struct glyph_string **, + struct glyph_string **, + struct glyph_string *)); +static int x_left_overwritten P_ ((struct glyph_string *)); +static int x_left_overwriting P_ ((struct glyph_string *)); +static int x_right_overwritten P_ ((struct glyph_string *)); +static int x_right_overwriting P_ ((struct glyph_string *)); +static int x_fill_glyph_string P_ ((struct glyph_string *, int, int, int, + int)); +static void x_init_glyph_string P_ ((struct glyph_string *, + XChar2b *, struct window *, + struct glyph_row *, + enum glyph_row_area, int, + enum draw_glyphs_face)); +static int x_draw_glyphs P_ ((struct window *, int , struct glyph_row *, + enum glyph_row_area, int, int, + enum draw_glyphs_face, int)); +static void x_set_glyph_string_clipping P_ ((struct glyph_string *)); +static void x_set_glyph_string_gc P_ ((struct glyph_string *)); +static void x_draw_glyph_string_background P_ ((struct glyph_string *, + int)); +static void x_draw_glyph_string_foreground P_ ((struct glyph_string *)); +static void x_draw_composite_glyph_string_foreground P_ ((struct glyph_string *)); +static void x_draw_glyph_string_box P_ ((struct glyph_string *)); +static void x_draw_glyph_string P_ ((struct glyph_string *)); +static void x_compute_glyph_string_overhangs P_ ((struct glyph_string *)); +static void x_set_cursor_gc P_ ((struct glyph_string *)); +static void x_set_mode_line_face_gc P_ ((struct glyph_string *)); +static void x_set_mouse_face_gc P_ ((struct glyph_string *)); +static void x_get_glyph_overhangs P_ ((struct glyph *, struct frame *, + int *, int *)); +static void x_compute_overhangs_and_x P_ ((struct glyph_string *, int, int)); +/*static int x_alloc_lighter_color P_ ((struct frame *, Display *, Colormap, + unsigned long *, double, int));*/ +static void x_setup_relief_color P_ ((struct frame *, struct relief *, + double, int, unsigned long)); +static void x_setup_relief_colors P_ ((struct glyph_string *)); +static void x_draw_image_glyph_string P_ ((struct glyph_string *)); +static void x_draw_image_relief P_ ((struct glyph_string *)); +static void x_draw_image_foreground P_ ((struct glyph_string *)); +static void x_draw_image_foreground_1 P_ ((struct glyph_string *, Pixmap)); +static void x_fill_image_glyph_string P_ ((struct glyph_string *)); +static void x_clear_glyph_string_rect P_ ((struct glyph_string *, int, + int, int, int)); +static void x_draw_relief_rect P_ ((struct frame *, int, int, int, int, + int, int, int, int, Rect *)); +static void x_draw_box_rect P_ ((struct glyph_string *, int, int, int, int, + int, int, int, Rect *)); +static void x_fix_overlapping_area P_ ((struct window *, struct glyph_row *, + enum glyph_row_area)); +static int x_fill_stretch_glyph_string P_ ((struct glyph_string *, + struct glyph_row *, + enum glyph_row_area, int, int)); + +#if GLYPH_DEBUG +static void x_check_font P_ ((struct frame *, XFontStruct *)); +#endif + + +/* Append the list of glyph strings with head H and tail T to the list + with head *HEAD and tail *TAIL. Set *HEAD and *TAIL to the result. */ + +static INLINE void +x_append_glyph_string_lists (head, tail, h, t) + struct glyph_string **head, **tail; + struct glyph_string *h, *t; +{ + if (h) + { + if (*head) + (*tail)->next = h; + else + *head = h; + h->prev = *tail; + *tail = t; + } +} + + +/* Prepend the list of glyph strings with head H and tail T to the + list with head *HEAD and tail *TAIL. Set *HEAD and *TAIL to the + result. */ + +static INLINE void +x_prepend_glyph_string_lists (head, tail, h, t) + struct glyph_string **head, **tail; + struct glyph_string *h, *t; +{ + if (h) + { + if (*head) + (*head)->prev = t; + else + *tail = t; + t->next = *head; + *head = h; + } +} + + +/* Append glyph string S to the list with head *HEAD and tail *TAIL. + Set *HEAD and *TAIL to the resulting list. */ + +static INLINE void +x_append_glyph_string (head, tail, s) + struct glyph_string **head, **tail; + struct glyph_string *s; +{ + s->next = s->prev = NULL; + x_append_glyph_string_lists (head, tail, s, s); +} + + +/* Set S->gc to a suitable GC for drawing glyph string S in cursor + face. */ + +static void +x_set_cursor_gc (s) + struct glyph_string *s; +{ + if (s->font == FRAME_FONT (s->f) + && s->face->background == FRAME_BACKGROUND_PIXEL (s->f) + && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f) + && !s->cmp) + s->gc = s->f->output_data.mac->cursor_gc; + else + { + /* Cursor on non-default face: must merge. */ + XGCValues xgcv; + unsigned long mask; + + xgcv.background = s->f->output_data.mac->cursor_pixel; + xgcv.foreground = s->face->background; + + /* If the glyph would be invisible, try a different foreground. */ + if (xgcv.foreground == xgcv.background) + xgcv.foreground = s->face->foreground; + if (xgcv.foreground == xgcv.background) + xgcv.foreground = s->f->output_data.mac->cursor_foreground_pixel; + if (xgcv.foreground == xgcv.background) + xgcv.foreground = s->face->foreground; + + /* Make sure the cursor is distinct from text in this face. */ + if (xgcv.background == s->face->background + && xgcv.foreground == s->face->foreground) + { + xgcv.background = s->face->foreground; + xgcv.foreground = s->face->background; + } + + IF_DEBUG (x_check_font (s->f, s->font)); + xgcv.font = s->font; + mask = GCForeground | GCBackground | GCFont; + + if (FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc) + XChangeGC (s->display, FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc, + mask, &xgcv); + else + FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc + = XCreateGC (s->display, s->window, mask, &xgcv); + + s->gc = FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc; + } +} + + +/* Set up S->gc of glyph string S for drawing text in mouse face. */ + +static void +x_set_mouse_face_gc (s) + struct glyph_string *s; +{ + int face_id; + struct face *face; + + /* What face has to be used last for the mouse face? */ + face_id = FRAME_X_DISPLAY_INFO (s->f)->mouse_face_face_id; + face = FACE_FROM_ID (s->f, face_id); + if (face == NULL) + face = FACE_FROM_ID (s->f, MOUSE_FACE_ID); + + if (s->first_glyph->type == CHAR_GLYPH) + face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch); + else + face_id = FACE_FOR_CHAR (s->f, face, 0); + s->face = FACE_FROM_ID (s->f, face_id); + PREPARE_FACE_FOR_DISPLAY (s->f, s->face); + + /* If font in this face is same as S->font, use it. */ + if (s->font == s->face->font) + s->gc = s->face->gc; + else + { + /* Otherwise construct scratch_cursor_gc with values from FACE + but font FONT. */ + XGCValues xgcv; + unsigned long mask; + + xgcv.background = s->face->background; + xgcv.foreground = s->face->foreground; + IF_DEBUG (x_check_font (s->f, s->font)); + xgcv.font = s->font; + mask = GCForeground | GCBackground | GCFont; + + if (FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc) + XChangeGC (s->display, FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc, + mask, &xgcv); + else + FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc + = XCreateGC (s->display, s->window, mask, &xgcv); + + s->gc = FRAME_MAC_DISPLAY_INFO (s->f)->scratch_cursor_gc; + } + + xassert (s->gc != 0); +} + + +/* Set S->gc of glyph string S to a GC suitable for drawing a mode line. + Faces to use in the mode line have already been computed when the + matrix was built, so there isn't much to do, here. */ + +static INLINE void +x_set_mode_line_face_gc (s) + struct glyph_string *s; +{ + s->gc = s->face->gc; +} + + +/* Set S->gc of glyph string S for drawing that glyph string. Set + S->stippled_p to a non-zero value if the face of S has a stipple + pattern. */ + +static INLINE void +x_set_glyph_string_gc (s) + struct glyph_string *s; +{ + PREPARE_FACE_FOR_DISPLAY (s->f, s->face); + + if (s->hl == DRAW_NORMAL_TEXT) + { + s->gc = s->face->gc; + s->stippled_p = s->face->stipple != 0; + } + else if (s->hl == DRAW_INVERSE_VIDEO) + { + x_set_mode_line_face_gc (s); + s->stippled_p = s->face->stipple != 0; + } + else if (s->hl == DRAW_CURSOR) + { + x_set_cursor_gc (s); + s->stippled_p = 0; + } + else if (s->hl == DRAW_MOUSE_FACE) + { + x_set_mouse_face_gc (s); + s->stippled_p = s->face->stipple != 0; + } + else if (s->hl == DRAW_IMAGE_RAISED + || s->hl == DRAW_IMAGE_SUNKEN) + { + s->gc = s->face->gc; + s->stippled_p = s->face->stipple != 0; + } + else + { + s->gc = s->face->gc; + s->stippled_p = s->face->stipple != 0; + } + + /* GC must have been set. */ + xassert (s->gc != 0); +} + + +/* Return in *R the clipping rectangle for glyph string S. */ + +static void +x_get_glyph_string_clip_rect (s, r) + struct glyph_string *s; + Rect *r; +{ + int r_height, r_width; + + if (s->row->full_width_p) + { + /* Draw full-width. X coordinates are relative to S->w->left. */ + int canon_x = CANON_X_UNIT (s->f); + + r->left = WINDOW_LEFT_MARGIN (s->w) * canon_x; + r_width = XFASTINT (s->w->width) * canon_x; + + if (FRAME_HAS_VERTICAL_SCROLL_BARS (s->f)) + { + int width = FRAME_SCROLL_BAR_WIDTH (s->f) * canon_x; + if (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (s->f)) + r->left -= width; + } + + r->left += FRAME_INTERNAL_BORDER_WIDTH (s->f); + + /* Unless displaying a mode or menu bar line, which are always + fully visible, clip to the visible part of the row. */ + if (s->w->pseudo_window_p) + r_height = s->row->visible_height; + else + r_height = s->height; + } + else + { + /* This is a text line that may be partially visible. */ + r->left = WINDOW_AREA_TO_FRAME_PIXEL_X (s->w, s->area, 0); + r_width = window_box_width (s->w, s->area); + r_height = s->row->visible_height; + } + + /* If S draws overlapping rows, it's sufficient to use the top and + bottom of the window for clipping because this glyph string + intentionally draws over other lines. */ + if (s->for_overlaps_p) + { + r->top = WINDOW_DISPLAY_HEADER_LINE_HEIGHT (s->w); + r_height = window_text_bottom_y (s->w) - r->top; + } + else + { + /* Don't use S->y for clipping because it doesn't take partially + visible lines into account. For example, it can be negative for + partially visible lines at the top of a window. */ + if (!s->row->full_width_p + && MATRIX_ROW_PARTIALLY_VISIBLE_AT_TOP_P (s->w, s->row)) + r->top = WINDOW_DISPLAY_HEADER_LINE_HEIGHT (s->w); + else + r->top = max (0, s->row->y); + + /* If drawing a tool-bar window, draw it over the internal border + at the top of the window. */ + if (s->w == XWINDOW (s->f->tool_bar_window)) + r->top -= s->f->output_data.mac->internal_border_width; + } + + r->top = WINDOW_TO_FRAME_PIXEL_Y (s->w, r->top); + + r->bottom = r->top + r_height; + r->right = r->left + r_width; +} + + +/* Set clipping for output of glyph string S. S may be part of a mode + line or menu if we don't have X toolkit support. */ + +static INLINE void +x_set_glyph_string_clipping (s) + struct glyph_string *s; +{ + Rect r; + x_get_glyph_string_clip_rect (s, &r); + mac_set_clip_rectangle (s->display, s->window, &r); +} + + +/* Compute left and right overhang of glyph string S. If S is a glyph + string for a composition, assume overhangs don't exist. */ + +static INLINE void +x_compute_glyph_string_overhangs (s) + struct glyph_string *s; +{ + if (s->cmp == NULL + && s->first_glyph->type == CHAR_GLYPH) + { + XCharStruct cs; + int direction, font_ascent, font_descent; + XTextExtents16 (s->font, s->char2b, s->nchars, &direction, + &font_ascent, &font_descent, &cs); + s->right_overhang = cs.rbearing > cs.width ? cs.rbearing - cs.width : 0; + s->left_overhang = cs.lbearing < 0 ? -cs.lbearing : 0; + } +} + + +/* Compute overhangs and x-positions for glyph string S and its + predecessors, or successors. X is the starting x-position for S. + BACKWARD_P non-zero means process predecessors. */ + +static void +x_compute_overhangs_and_x (s, x, backward_p) + struct glyph_string *s; + int x; + int backward_p; +{ + if (backward_p) + { + while (s) + { + x_compute_glyph_string_overhangs (s); + x -= s->width; + s->x = x; + s = s->prev; + } + } + else + { + while (s) + { + x_compute_glyph_string_overhangs (s); + s->x = x; + x += s->width; + s = s->next; + } + } +} + + +/* Set *LEFT and *RIGHT to the left and right overhang of GLYPH on + frame F. Overhangs of glyphs other than type CHAR_GLYPH are + assumed to be zero. */ + +void +x_get_glyph_overhangs (glyph, f, left, right) + struct glyph *glyph; + struct frame *f; + int *left, *right; +{ + *left = *right = 0; + + if (glyph->type == CHAR_GLYPH) + { + XFontStruct *font; + struct face *face; + struct font_info *font_info; + XChar2b char2b; + XCharStruct *pcm; + + face = x_get_glyph_face_and_encoding (f, glyph, &char2b, NULL); + font = face->font; + font_info = FONT_INFO_FROM_ID (f, face->font_info_id); + if (font + && (pcm = x_per_char_metric (font, &char2b))) + { + if (pcm->rbearing > pcm->width) + *right = pcm->rbearing - pcm->width; + if (pcm->lbearing < 0) + *left = -pcm->lbearing; + } + } +} + + +/* Return the index of the first glyph preceding glyph string S that + is overwritten by S because of S's left overhang. Value is -1 + if no glyphs are overwritten. */ + +static int +x_left_overwritten (s) + struct glyph_string *s; +{ + int k; + + if (s->left_overhang) + { + int x = 0, i; + struct glyph *glyphs = s->row->glyphs[s->area]; + int first = s->first_glyph - glyphs; + + for (i = first - 1; i >= 0 && x > -s->left_overhang; --i) + x -= glyphs[i].pixel_width; + + k = i + 1; + } + else + k = -1; + + return k; +} + + +/* Return the index of the first glyph preceding glyph string S that + is overwriting S because of its right overhang. Value is -1 if no + glyph in front of S overwrites S. */ + +static int +x_left_overwriting (s) + struct glyph_string *s; +{ + int i, k, x; + struct glyph *glyphs = s->row->glyphs[s->area]; + int first = s->first_glyph - glyphs; + + k = -1; + x = 0; + for (i = first - 1; i >= 0; --i) + { + int left, right; + x_get_glyph_overhangs (glyphs + i, s->f, &left, &right); + if (x + right > 0) + k = i; + x -= glyphs[i].pixel_width; + } + + return k; +} + + +/* Return the index of the last glyph following glyph string S that is + not overwritten by S because of S's right overhang. Value is -1 if + no such glyph is found. */ + +static int +x_right_overwritten (s) + struct glyph_string *s; +{ + int k = -1; + + if (s->right_overhang) + { + int x = 0, i; + struct glyph *glyphs = s->row->glyphs[s->area]; + int first = (s->first_glyph - glyphs) + (s->cmp ? 1 : s->nchars); + int end = s->row->used[s->area]; + + for (i = first; i < end && s->right_overhang > x; ++i) + x += glyphs[i].pixel_width; + + k = i; + } + + return k; +} + + +/* Return the index of the last glyph following glyph string S that + overwrites S because of its left overhang. Value is negative + if no such glyph is found. */ + +static int +x_right_overwriting (s) + struct glyph_string *s; +{ + int i, k, x; + int end = s->row->used[s->area]; + struct glyph *glyphs = s->row->glyphs[s->area]; + int first = (s->first_glyph - glyphs) + (s->cmp ? 1 : s->nchars); + + k = -1; + x = 0; + for (i = first; i < end; ++i) + { + int left, right; + x_get_glyph_overhangs (glyphs + i, s->f, &left, &right); + if (x - left < 0) + k = i; + x += glyphs[i].pixel_width; + } + + return k; +} + + +/* Fill rectangle X, Y, W, H with background color of glyph string S. */ + +static INLINE void +x_clear_glyph_string_rect (s, x, y, w, h) + struct glyph_string *s; + int x, y, w, h; +{ + XGCValues xgcv; + + xgcv.foreground = s->gc->background; + XFillRectangle (s->display, s->window, &xgcv, x, y, w, h); +} + + +/* Draw the background of glyph_string S. If S->background_filled_p + is non-zero don't draw it. FORCE_P non-zero means draw the + background even if it wouldn't be drawn normally. This is used + when a string preceding S draws into the background of S, or S + contains the first component of a composition. */ + +static void +x_draw_glyph_string_background (s, force_p) + struct glyph_string *s; + int force_p; +{ + /* Nothing to do if background has already been drawn or if it + shouldn't be drawn in the first place. */ + if (!s->background_filled_p) + { + int box_line_width = max (s->face->box_line_width, 0); + +#if 0 /* MAC_TODO: stipple */ + if (s->stippled_p) + { + /* Fill background with a stipple pattern. */ + XSetFillStyle (s->display, s->gc, FillOpaqueStippled); + XFillRectangle (s->display, s->window, s->gc, s->x, + s->y + box_line_width, + s->background_width, + s->height - 2 * box_line_width); + XSetFillStyle (s->display, s->gc, FillSolid); + s->background_filled_p = 1; + } + else +#endif + if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width + || s->font_not_found_p + || s->extends_to_end_of_line_p + || force_p) + { + x_clear_glyph_string_rect (s, s->x, s->y + box_line_width, + s->background_width, + s->height - 2 * box_line_width); + s->background_filled_p = 1; + } + } +} + + +/* Draw the foreground of glyph string S. */ + +static void +x_draw_glyph_string_foreground (s) + struct glyph_string *s; +{ + int i, x; + + /* If first glyph of S has a left box line, start drawing the text + of S to the right of that box line. */ + if (s->face->box != FACE_NO_BOX + && s->first_glyph->left_box_line_p) + x = s->x + abs (s->face->box_line_width); + else + x = s->x; + + /* Draw characters of S as rectangles if S's font could not be + loaded. */ + if (s->font_not_found_p) + { + for (i = 0; i < s->nchars; ++i) + { + struct glyph *g = s->first_glyph + i; + mac_draw_rectangle (s->display, s->window, + s->gc, x, s->y, g->pixel_width - 1, + s->height - 1); + x += g->pixel_width; + } + } + else + { + char *char1b = (char *) s->char2b; + int boff = s->font_info->baseline_offset; + + if (s->font_info->vertical_centering) + boff = VCENTER_BASELINE_OFFSET (s->font, s->f) - boff; + + /* If we can use 8-bit functions, condense S->char2b. */ + if (!s->two_byte_p) + for (i = 0; i < s->nchars; ++i) + char1b[i] = s->char2b[i].byte2; + + /* Draw text with XDrawString if background has already been + filled. Otherwise, use XDrawImageString. (Note that + XDrawImageString is usually faster than XDrawString.) Always + use XDrawImageString when drawing the cursor so that there is + no chance that characters under a box cursor are invisible. */ + if (s->for_overlaps_p + || (s->background_filled_p && s->hl != DRAW_CURSOR)) + { + /* Draw characters with 16-bit or 8-bit functions. */ + if (s->two_byte_p) + XDrawString16 (s->display, s->window, s->gc, x, + s->ybase - boff, s->char2b, s->nchars); + else + XDrawString (s->display, s->window, s->gc, x, + s->ybase - boff, char1b, s->nchars); + } + else + { + if (s->two_byte_p) + XDrawImageString16 (s->display, s->window, s->gc, x, + s->ybase - boff, s->char2b, s->nchars); + else + XDrawImageString (s->display, s->window, s->gc, x, + s->ybase - boff, char1b, s->nchars); + } + } +} + +/* Draw the foreground of composite glyph string S. */ + +static void +x_draw_composite_glyph_string_foreground (s) + struct glyph_string *s; +{ + int i, x; + + /* If first glyph of S has a left box line, start drawing the text + of S to the right of that box line. */ + if (s->face->box != FACE_NO_BOX + && s->first_glyph->left_box_line_p) + x = s->x + abs (s->face->box_line_width); + else + x = s->x; + + /* S is a glyph string for a composition. S->gidx is the index of + the first character drawn for glyphs of this composition. + S->gidx == 0 means we are drawing the very first character of + this composition. */ + + /* Draw a rectangle for the composition if the font for the very + first character of the composition could not be loaded. */ + if (s->font_not_found_p) + { + if (s->gidx == 0) + mac_draw_rectangle (s->display, s->window, s->gc, x, s->y, + s->width - 1, s->height - 1); + } + else + { + for (i = 0; i < s->nchars; i++, ++s->gidx) + XDrawString16 (s->display, s->window, s->gc, + x + s->cmp->offsets[s->gidx * 2], + s->ybase - s->cmp->offsets[s->gidx * 2 + 1], + s->char2b + i, 1); + } +} + + +#ifdef USE_X_TOOLKIT + +static struct frame *x_frame_of_widget P_ ((Widget)); + + +/* Return the frame on which widget WIDGET is used.. Abort if frame + cannot be determined. */ + +static struct frame * +x_frame_of_widget (widget) + Widget widget; +{ + struct x_display_info *dpyinfo; + Lisp_Object tail; + struct frame *f; + + dpyinfo = x_display_info_for_display (XtDisplay (widget)); + + /* Find the top-level shell of the widget. Note that this function + can be called when the widget is not yet realized, so XtWindow + (widget) == 0. That's the reason we can't simply use + x_any_window_to_frame. */ + while (!XtIsTopLevelShell (widget)) + widget = XtParent (widget); + + /* Look for a frame with that top-level widget. Allocate the color + on that frame to get the right gamma correction value. */ + for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) + if (GC_FRAMEP (XCAR (tail)) + && (f = XFRAME (XCAR (tail)), + (f->output_data.nothing != 1 + && FRAME_X_DISPLAY_INFO (f) == dpyinfo)) + && f->output_data.x->widget == widget) + return f; + + abort (); +} + + +/* Allocate the color COLOR->pixel on the screen and display of + widget WIDGET in colormap CMAP. If an exact match cannot be + allocated, try the nearest color available. Value is non-zero + if successful. This is called from lwlib. */ + +int +x_alloc_nearest_color_for_widget (widget, cmap, color) + Widget widget; + Colormap cmap; + XColor *color; +{ + struct frame *f = x_frame_of_widget (widget); + return x_alloc_nearest_color (f, cmap, color); +} + + +#endif /* USE_X_TOOLKIT */ + +#if 0 /* MAC_TODO */ + +/* Allocate the color COLOR->pixel on SCREEN of DISPLAY, colormap + CMAP. If an exact match can't be allocated, try the nearest color + available. Value is non-zero if successful. Set *COLOR to the + color allocated. */ + +int +x_alloc_nearest_color (f, cmap, color) + struct frame *f; + Colormap cmap; + XColor *color; +{ + Display *display = FRAME_X_DISPLAY (f); + Screen *screen = FRAME_X_SCREEN (f); + int rc; + + gamma_correct (f, color); + rc = XAllocColor (display, cmap, color); + if (rc == 0) + { + /* If we got to this point, the colormap is full, so we're going + to try to get the next closest color. The algorithm used is + a least-squares matching, which is what X uses for closest + color matching with StaticColor visuals. */ + int nearest, i; + unsigned long nearest_delta = ~0; + int ncells = XDisplayCells (display, XScreenNumberOfScreen (screen)); + XColor *cells = (XColor *) alloca (ncells * sizeof *cells); + + for (i = 0; i < ncells; ++i) + cells[i].pixel = i; + XQueryColors (display, cmap, cells, ncells); + + for (nearest = i = 0; i < ncells; ++i) + { + long dred = (color->red >> 8) - (cells[i].red >> 8); + long dgreen = (color->green >> 8) - (cells[i].green >> 8); + long dblue = (color->blue >> 8) - (cells[i].blue >> 8); + unsigned long delta = dred * dred + dgreen * dgreen + dblue * dblue; + + if (delta < nearest_delta) + { + nearest = i; + nearest_delta = delta; + } + } + + color->red = cells[nearest].red; + color->green = cells[nearest].green; + color->blue = cells[nearest].blue; + rc = XAllocColor (display, cmap, color); + } + +#ifdef DEBUG_X_COLORS + if (rc) + register_color (color->pixel); +#endif /* DEBUG_X_COLORS */ + + return rc; +} + + +/* Allocate color PIXEL on frame F. PIXEL must already be allocated. + It's necessary to do this instead of just using PIXEL directly to + get color reference counts right. */ + +unsigned long +x_copy_color (f, pixel) + struct frame *f; + unsigned long pixel; +{ + XColor color; + + color.pixel = pixel; + BLOCK_INPUT; + XQueryColor (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &color); + XAllocColor (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &color); + UNBLOCK_INPUT; +#ifdef DEBUG_X_COLORS + register_color (pixel); +#endif + return color.pixel; +} + + +/* Allocate color PIXEL on display DPY. PIXEL must already be allocated. + It's necessary to do this instead of just using PIXEL directly to + get color reference counts right. */ + +unsigned long +x_copy_dpy_color (dpy, cmap, pixel) + Display *dpy; + Colormap cmap; + unsigned long pixel; +{ + XColor color; + + color.pixel = pixel; + BLOCK_INPUT; + XQueryColor (dpy, cmap, &color); + XAllocColor (dpy, cmap, &color); + UNBLOCK_INPUT; +#ifdef DEBUG_X_COLORS + register_color (pixel); +#endif + return color.pixel; +} + +#endif /* MAC_TODO */ + +/* Allocate a color which is lighter or darker than *COLOR by FACTOR + or DELTA. Try a color with RGB values multiplied by FACTOR first. + If this produces the same color as COLOR, try a color where all RGB + values have DELTA added. Return the allocated color in *COLOR. + DISPLAY is the X display, CMAP is the colormap to operate on. + Value is non-zero if successful. */ + +static int +mac_alloc_lighter_color (f, color, factor, delta) + struct frame *f; + unsigned long *color; + double factor; + int delta; +{ + unsigned long new; + + /* Change RGB values by specified FACTOR. Avoid overflow! */ + xassert (factor >= 0); + new = RGB_TO_ULONG (min (0xff, (int) (factor * RED_FROM_ULONG (*color))), + min (0xff, (int) (factor * GREEN_FROM_ULONG (*color))), + min (0xff, (int) (factor * BLUE_FROM_ULONG (*color)))); + if (new == *color) + new = RGB_TO_ULONG (max (0, min (0xff, (int) (delta + RED_FROM_ULONG (*color)))), + max (0, min (0xff, (int) (delta + GREEN_FROM_ULONG (*color)))), + max (0, min (0xff, (int) (delta + BLUE_FROM_ULONG (*color))))); + + /* MAC_TODO: Map to palette and retry with delta if same? */ + /* MAC_TODO: Free colors (if using palette)? */ + + if (new == *color) + return 0; + + *color = new; + + return 1; +} + + +/* Set up the foreground color for drawing relief lines of glyph + string S. RELIEF is a pointer to a struct relief containing the GC + with which lines will be drawn. Use a color that is FACTOR or + DELTA lighter or darker than the relief's background which is found + in S->f->output_data.x->relief_background. If such a color cannot + be allocated, use DEFAULT_PIXEL, instead. */ + +static void +x_setup_relief_color (f, relief, factor, delta, default_pixel) + struct frame *f; + struct relief *relief; + double factor; + int delta; + unsigned long default_pixel; +{ + XGCValues xgcv; + struct mac_output *di = f->output_data.mac; + unsigned long mask = GCForeground; + unsigned long pixel; + unsigned long background = di->relief_background; + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + + /* MAC_TODO: Free colors (if using palette)? */ + + /* Allocate new color. */ + xgcv.foreground = default_pixel; + pixel = background; + if (mac_alloc_lighter_color (f, &pixel, factor, delta)) + { + relief->allocated_p = 1; + xgcv.foreground = relief->pixel = pixel; + } + + if (relief->gc == 0) + { +#if 0 /* MAC_TODO: stipple */ + xgcv.stipple = dpyinfo->gray; + mask |= GCStipple; +#endif + relief->gc = XCreateGC (NULL, FRAME_MAC_WINDOW (f), mask, &xgcv); + } + else + XChangeGC (NULL, relief->gc, mask, &xgcv); +} + + +/* Set up colors for the relief lines around glyph string S. */ + +static void +x_setup_relief_colors (s) + struct glyph_string *s; +{ + struct mac_output *di = s->f->output_data.mac; + unsigned long color; + + if (s->face->use_box_color_for_shadows_p) + color = s->face->box_color; + else + { + XGCValues xgcv; + + /* Get the background color of the face. */ + XGetGCValues (s->display, s->gc, GCBackground, &xgcv); + color = xgcv.background; + } + + if (di->white_relief.gc == 0 + || color != di->relief_background) + { + di->relief_background = color; + x_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000, + WHITE_PIX_DEFAULT (s->f)); + x_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000, + BLACK_PIX_DEFAULT (s->f)); + } +} + + +/* Draw a relief on frame F inside the rectangle given by LEFT_X, + TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the relief + to draw, it must be >= 0. RAISED_P non-zero means draw a raised + relief. LEFT_P non-zero means draw a relief on the left side of + the rectangle. RIGHT_P non-zero means draw a relief on the right + side of the rectangle. CLIP_RECT is the clipping rectangle to use + when drawing. */ + +static void +x_draw_relief_rect (f, left_x, top_y, right_x, bottom_y, width, + raised_p, left_p, right_p, clip_rect) + struct frame *f; + int left_x, top_y, right_x, bottom_y, left_p, right_p, raised_p; + Rect *clip_rect; +{ + int i; + GC gc; + + if (raised_p) + gc = f->output_data.mac->white_relief.gc; + else + gc = f->output_data.mac->black_relief.gc; + mac_set_clip_rectangle (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), clip_rect); + + /* Top. */ + for (i = 0; i < width; ++i) + XDrawLine (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), gc, + left_x + i * left_p, top_y + i, + right_x + 1 - i * right_p, top_y + i); + + /* Left. */ + if (left_p) + for (i = 0; i < width; ++i) + XDrawLine (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), gc, + left_x + i, top_y + i, left_x + i, bottom_y - i); + + mac_reset_clipping (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f)); + if (raised_p) + gc = f->output_data.mac->black_relief.gc; + else + gc = f->output_data.mac->white_relief.gc; + mac_set_clip_rectangle (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + clip_rect); + + /* Bottom. */ + for (i = 0; i < width; ++i) + XDrawLine (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), gc, + left_x + i * left_p, bottom_y - i, + right_x + 1 - i * right_p, bottom_y - i); + + /* Right. */ + if (right_p) + for (i = 0; i < width; ++i) + XDrawLine (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), gc, + right_x - i, top_y + i + 1, right_x - i, bottom_y - i); + + mac_reset_clipping (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f)); +} + + +/* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y, + RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to + draw, it must be >= 0. LEFT_P non-zero means draw a line on the + left side of the rectangle. RIGHT_P non-zero means draw a line + on the right side of the rectangle. CLIP_RECT is the clipping + rectangle to use when drawing. */ + +static void +x_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width, + left_p, right_p, clip_rect) + struct glyph_string *s; + int left_x, top_y, right_x, bottom_y, left_p, right_p; + Rect *clip_rect; +{ + XGCValues xgcv; + + xgcv.foreground = s->face->box_color; + mac_set_clip_rectangle (s->display, s->window, clip_rect); + + /* Top. */ + XFillRectangle (s->display, s->window, &xgcv, + left_x, top_y, right_x - left_x, width); + + /* Left. */ + if (left_p) + XFillRectangle (s->display, s->window, &xgcv, + left_x, top_y, width, bottom_y - top_y); + + /* Bottom. */ + XFillRectangle (s->display, s->window, &xgcv, + left_x, bottom_y - width, right_x - left_x, width); + + /* Right. */ + if (right_p) + XFillRectangle (s->display, s->window, &xgcv, + right_x - width, top_y, width, bottom_y - top_y); + + mac_reset_clipping (s->display, s->window); +} + + +/* Draw a box around glyph string S. */ + +static void +x_draw_glyph_string_box (s) + struct glyph_string *s; +{ + int width, left_x, right_x, top_y, bottom_y, last_x, raised_p; + int left_p, right_p; + struct glyph *last_glyph; + Rect clip_rect; + + last_x = window_box_right (s->w, s->area); + if (s->row->full_width_p + && !s->w->pseudo_window_p) + { + last_x += FRAME_X_RIGHT_FRINGE_WIDTH (s->f); + if (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (s->f)) + last_x += FRAME_SCROLL_BAR_WIDTH (s->f) * CANON_X_UNIT (s->f); + } + + /* The glyph that may have a right box line. */ + last_glyph = (s->cmp || s->img + ? s->first_glyph + : s->first_glyph + s->nchars - 1); + + width = abs (s->face->box_line_width); + raised_p = s->face->box == FACE_RAISED_BOX; + left_x = s->x; + right_x = ((s->row->full_width_p && s->extends_to_end_of_line_p + ? last_x - 1 + : min (last_x, s->x + s->background_width) - 1)); + top_y = s->y; + bottom_y = top_y + s->height - 1; + + left_p = (s->first_glyph->left_box_line_p + || (s->hl == DRAW_MOUSE_FACE + && (s->prev == NULL + || s->prev->hl != s->hl))); + right_p = (last_glyph->right_box_line_p + || (s->hl == DRAW_MOUSE_FACE + && (s->next == NULL + || s->next->hl != s->hl))); + + x_get_glyph_string_clip_rect (s, &clip_rect); + + if (s->face->box == FACE_SIMPLE_BOX) + x_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width, + left_p, right_p, &clip_rect); + else + { + x_setup_relief_colors (s); + x_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y, + width, raised_p, left_p, right_p, &clip_rect); + } +} + + +/* Draw foreground of image glyph string S. */ + +static void +x_draw_image_foreground (s) + struct glyph_string *s; +{ + int x; + int y = s->ybase - image_ascent (s->img, s->face); + + /* If first glyph of S has a left box line, start drawing it to the + right of that line. */ + if (s->face->box != FACE_NO_BOX + && s->first_glyph->left_box_line_p) + x = s->x + abs (s->face->box_line_width); + else + x = s->x; + + /* If there is a margin around the image, adjust x- and y-position + by that margin. */ + x += s->img->hmargin; + y += s->img->vmargin; + + if (s->img->pixmap) + { +#if 0 /* MAC_TODO: image mask */ + if (s->img->mask) + { + /* We can't set both a clip mask and use XSetClipRectangles + because the latter also sets a clip mask. We also can't + trust on the shape extension to be available + (XShapeCombineRegion). So, compute the rectangle to draw + manually. */ + unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin + | GCFunction); + XGCValues xgcv; + XRectangle clip_rect, image_rect, r; + + xgcv.clip_mask = s->img->mask; + xgcv.clip_x_origin = x; + xgcv.clip_y_origin = y; + xgcv.function = GXcopy; + XChangeGC (s->display, s->gc, mask, &xgcv); + + x_get_glyph_string_clip_rect (s, &clip_rect); + image_rect.x = x; + image_rect.y = y; + image_rect.width = s->img->width; + image_rect.height = s->img->height; + if (x_intersect_rectangles (&clip_rect, &image_rect, &r)) + XCopyArea (s->display, s->img->pixmap, s->window, s->gc, + r.x - x, r.y - y, r.width, r.height, r.x, r.y); + } + else +#endif /* MAC_TODO */ + { + mac_copy_area (s->display, s->img->pixmap, s->window, s->gc, + 0, 0, s->img->width, s->img->height, x, y); + + /* When the image has a mask, we can expect that at + least part of a mouse highlight or a block cursor will + be visible. If the image doesn't have a mask, make + a block cursor visible by drawing a rectangle around + the image. I believe it's looking better if we do + nothing here for mouse-face. */ + if (s->hl == DRAW_CURSOR) + mac_draw_rectangle (s->display, s->window, s->gc, x, y, + s->img->width - 1, s->img->height - 1); + } + } + else + /* Draw a rectangle if image could not be loaded. */ + mac_draw_rectangle (s->display, s->window, s->gc, x, y, + s->img->width - 1, s->img->height - 1); +} + + + +/* Draw a relief around the image glyph string S. */ + +static void +x_draw_image_relief (s) + struct glyph_string *s; +{ + int x0, y0, x1, y1, thick, raised_p; + Rect r; + int x; + int y = s->ybase - image_ascent (s->img, s->face); + + /* If first glyph of S has a left box line, start drawing it to the + right of that line. */ + if (s->face->box != FACE_NO_BOX + && s->first_glyph->left_box_line_p) + x = s->x + abs (s->face->box_line_width); + else + x = s->x; + + /* If there is a margin around the image, adjust x- and y-position + by that margin. */ + x += s->img->hmargin; + y += s->img->vmargin; + + if (s->hl == DRAW_IMAGE_SUNKEN + || s->hl == DRAW_IMAGE_RAISED) + { + thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF; + raised_p = s->hl == DRAW_IMAGE_RAISED; + } + else + { + thick = abs (s->img->relief); + raised_p = s->img->relief > 0; + } + + x0 = x - thick; + y0 = y - thick; + x1 = x + s->img->width + thick - 1; + y1 = y + s->img->height + thick - 1; + + x_setup_relief_colors (s); + x_get_glyph_string_clip_rect (s, &r); + x_draw_relief_rect (s->f, x0, y0, x1, y1, thick, raised_p, 1, 1, &r); +} + + +/* Draw the foreground of image glyph string S to PIXMAP. */ + +static void +x_draw_image_foreground_1 (s, pixmap) + struct glyph_string *s; + Pixmap pixmap; +{ + int x; + int y = s->ybase - s->y - image_ascent (s->img, s->face); + + /* If first glyph of S has a left box line, start drawing it to the + right of that line. */ + if (s->face->box != FACE_NO_BOX + && s->first_glyph->left_box_line_p) + x = abs (s->face->box_line_width); + else + x = 0; + + /* If there is a margin around the image, adjust x- and y-position + by that margin. */ + x += s->img->hmargin; + y += s->img->vmargin; + + if (s->img->pixmap) + { +#if 0 /* MAC_TODO: image mask */ + if (s->img->mask) + { + /* We can't set both a clip mask and use XSetClipRectangles + because the latter also sets a clip mask. We also can't + trust on the shape extension to be available + (XShapeCombineRegion). So, compute the rectangle to draw + manually. */ + unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin + | GCFunction); + XGCValues xgcv; + + xgcv.clip_mask = s->img->mask; + xgcv.clip_x_origin = x; + xgcv.clip_y_origin = y; + xgcv.function = GXcopy; + XChangeGC (s->display, s->gc, mask, &xgcv); + + XCopyArea (s->display, s->img->pixmap, pixmap, s->gc, + 0, 0, s->img->width, s->img->height, x, y); + XSetClipMask (s->display, s->gc, None); + } + else +#endif /* MAC_TODO */ + { + mac_copy_area_to_pixmap (s->display, s->img->pixmap, pixmap, s->gc, + 0, 0, s->img->width, s->img->height, x, y); + + /* When the image has a mask, we can expect that at + least part of a mouse highlight or a block cursor will + be visible. If the image doesn't have a mask, make + a block cursor visible by drawing a rectangle around + the image. I believe it's looking better if we do + nothing here for mouse-face. */ + if (s->hl == DRAW_CURSOR) + mac_draw_rectangle_to_pixmap (s->display, pixmap, s->gc, x, y, + s->img->width - 1, s->img->height - 1); + } + } + else + /* Draw a rectangle if image could not be loaded. */ + mac_draw_rectangle_to_pixmap (s->display, pixmap, s->gc, x, y, + s->img->width - 1, s->img->height - 1); +} + + +/* Draw part of the background of glyph string S. X, Y, W, and H + give the rectangle to draw. */ + +static void +x_draw_glyph_string_bg_rect (s, x, y, w, h) + struct glyph_string *s; + int x, y, w, h; +{ +#if 0 /* MAC_TODO: stipple */ + if (s->stippled_p) + { + /* Fill background with a stipple pattern. */ + XSetFillStyle (s->display, s->gc, FillOpaqueStippled); + XFillRectangle (s->display, s->window, s->gc, x, y, w, h); + XSetFillStyle (s->display, s->gc, FillSolid); + } + else +#endif /* MAC_TODO */ + x_clear_glyph_string_rect (s, x, y, w, h); +} + + +/* Draw image glyph string S. + + s->y + s->x +------------------------- + | s->face->box + | + | +------------------------- + | | s->img->vmargin + | | + | | +------------------- + | | | the image + + */ + +static void +x_draw_image_glyph_string (s) + struct glyph_string *s; +{ + int x, y; + int box_line_hwidth = abs (s->face->box_line_width); + int box_line_vwidth = max (s->face->box_line_width, 0); + int height; + Pixmap pixmap = 0; + + height = s->height - 2 * box_line_vwidth; + + /* Fill background with face under the image. Do it only if row is + taller than image or if image has a clip mask to reduce + flickering. */ + s->stippled_p = s->face->stipple != 0; + if (height > s->img->height + || s->img->hmargin + || s->img->vmargin +#if 0 /* TODO: image mask */ + || s->img->mask +#endif + || s->img->pixmap == 0 + || s->width != s->background_width) + { + if (box_line_hwidth && s->first_glyph->left_box_line_p) + x = s->x + box_line_hwidth; + else + x = s->x; + + y = s->y + box_line_vwidth; +#if 0 /* TODO: image mask */ + if (s->img->mask) + { + /* Create a pixmap as large as the glyph string. Fill it + with the background color. Copy the image to it, using + its mask. Copy the temporary pixmap to the display. */ + Screen *screen = FRAME_X_SCREEN (s->f); + int depth = DefaultDepthOfScreen (screen); + + /* Create a pixmap as large as the glyph string. */ + pixmap = XCreatePixmap (s->display, s->window, + s->background_width, + s->height, depth); + + /* Don't clip in the following because we're working on the + pixmap. */ + XSetClipMask (s->display, s->gc, None); + + /* Fill the pixmap with the background color/stipple. */ + if (s->stippled_p) + { + /* Fill background with a stipple pattern. */ + XSetFillStyle (s->display, s->gc, FillOpaqueStippled); + XFillRectangle (s->display, pixmap, s->gc, + 0, 0, s->background_width, s->height); + XSetFillStyle (s->display, s->gc, FillSolid); + } + else + { + XGCValues xgcv; + XGetGCValues (s->display, s->gc, GCForeground | GCBackground, + &xgcv); + XSetForeground (s->display, s->gc, xgcv.background); + XFillRectangle (s->display, pixmap, s->gc, + 0, 0, s->background_width, s->height); + XSetForeground (s->display, s->gc, xgcv.foreground); + } + } + else +#endif + x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height); + + s->background_filled_p = 1; + } + + /* Draw the foreground. */ + if (pixmap != 0) + { + x_draw_image_foreground_1 (s, pixmap); + x_set_glyph_string_clipping (s); + mac_copy_area (s->display, pixmap, s->window, s->gc, + 0, 0, s->background_width, s->height, s->x, s->y); + mac_reset_clipping (s->display, s->window); + XFreePixmap (s->display, pixmap); + } + else + x_draw_image_foreground (s); + + /* If we must draw a relief around the image, do it. */ + if (s->img->relief + || s->hl == DRAW_IMAGE_RAISED + || s->hl == DRAW_IMAGE_SUNKEN) + x_draw_image_relief (s); +} + + +/* Draw stretch glyph string S. */ + +static void +x_draw_stretch_glyph_string (s) + struct glyph_string *s; +{ + xassert (s->first_glyph->type == STRETCH_GLYPH); + s->stippled_p = s->face->stipple != 0; + + if (s->hl == DRAW_CURSOR + && !x_stretch_cursor_p) + { + /* If `x-stretch-block-cursor' is nil, don't draw a block cursor + as wide as the stretch glyph. */ + int width = min (CANON_X_UNIT (s->f), s->background_width); + + /* Draw cursor. */ + x_draw_glyph_string_bg_rect (s, s->x, s->y, width, s->height); + + /* Clear rest using the GC of the original non-cursor face. */ + if (width < s->background_width) + { + GC gc = s->face->gc; + int x = s->x + width, y = s->y; + int w = s->background_width - width, h = s->height; + Rect r; + + if (s->row->mouse_face_p + && cursor_in_mouse_face_p (s->w)) + { + x_set_mouse_face_gc (s); + gc = s->gc; + } + else + gc = s->face->gc; + + x_get_glyph_string_clip_rect (s, &r); + mac_set_clip_rectangle (s->display, s->window, &r); + +#if 0 /* MAC_TODO: stipple */ + if (s->face->stipple) + { + /* Fill background with a stipple pattern. */ + XSetFillStyle (s->display, gc, FillOpaqueStippled); + XFillRectangle (s->display, s->window, gc, x, y, w, h); + XSetFillStyle (s->display, gc, FillSolid); + } + else +#endif /* MAC_TODO */ + { + XGCValues xgcv; + XGetGCValues (s->display, gc, GCForeground | GCBackground, &xgcv); + XSetForeground (s->display, gc, xgcv.background); + XFillRectangle (s->display, s->window, gc, x, y, w, h); + XSetForeground (s->display, gc, xgcv.foreground); + } + + mac_reset_clipping (s->display, s->window); + } + } + else if (!s->background_filled_p) + x_draw_glyph_string_bg_rect (s, s->x, s->y, s->background_width, + s->height); + + s->background_filled_p = 1; +} + + +/* Draw glyph string S. */ + +static void +x_draw_glyph_string (s) + struct glyph_string *s; +{ + int relief_drawn_p = 0; + + /* If S draws into the background of its successor, draw the + background of the successor first so that S can draw into it. + This makes S->next use XDrawString instead of XDrawImageString. */ + if (s->next && s->right_overhang && !s->for_overlaps_p) + { + xassert (s->next->img == NULL); + x_set_glyph_string_gc (s->next); + x_set_glyph_string_clipping (s->next); + x_draw_glyph_string_background (s->next, 1); + + } + + /* Set up S->gc, set clipping and draw S. */ + x_set_glyph_string_gc (s); + + /* Draw relief (if any) in advance for char/composition so that the + glyph string can be drawn over it. */ + if (!s->for_overlaps_p + && s->face->box != FACE_NO_BOX + && (s->first_glyph->type == CHAR_GLYPH + || s->first_glyph->type == COMPOSITE_GLYPH)) + + { + x_set_glyph_string_clipping (s); + x_draw_glyph_string_background (s, 1); + x_draw_glyph_string_box (s); + x_set_glyph_string_clipping (s); + relief_drawn_p = 1; + } + else + x_set_glyph_string_clipping (s); + + switch (s->first_glyph->type) + { + case IMAGE_GLYPH: + x_draw_image_glyph_string (s); + break; + + case STRETCH_GLYPH: + x_draw_stretch_glyph_string (s); + break; + + case CHAR_GLYPH: + if (s->for_overlaps_p) + s->background_filled_p = 1; + else + x_draw_glyph_string_background (s, 0); + x_draw_glyph_string_foreground (s); + break; + + case COMPOSITE_GLYPH: + if (s->for_overlaps_p || s->gidx > 0) + s->background_filled_p = 1; + else + x_draw_glyph_string_background (s, 1); + x_draw_composite_glyph_string_foreground (s); + break; + + default: + abort (); + } + + if (!s->for_overlaps_p) + { + /* Draw underline. */ + if (s->face->underline_p) + { + unsigned long h = 1; + unsigned long dy = s->height - h; + + if (s->face->underline_defaulted_p) + XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, + s->width, h); + else + { + XGCValues xgcv; + XGetGCValues (s->display, s->gc, GCForeground, &xgcv); + XSetForeground (s->display, s->gc, s->face->underline_color); + XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, + s->width, h); + XSetForeground (s->display, s->gc, xgcv.foreground); + } + } + + /* Draw overline. */ + if (s->face->overline_p) + { + unsigned long dy = 0, h = 1; + + if (s->face->overline_color_defaulted_p) + XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, + s->width, h); + else + { + XGCValues xgcv; + XGetGCValues (s->display, s->gc, GCForeground, &xgcv); + XSetForeground (s->display, s->gc, s->face->overline_color); + XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, + s->width, h); + XSetForeground (s->display, s->gc, xgcv.foreground); + } + } + + /* Draw strike-through. */ + if (s->face->strike_through_p) + { + unsigned long h = 1; + unsigned long dy = (s->height - h) / 2; + + if (s->face->strike_through_color_defaulted_p) + XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, + s->width, h); + else + { + XGCValues xgcv; + XGetGCValues (s->display, s->gc, GCForeground, &xgcv); + XSetForeground (s->display, s->gc, s->face->strike_through_color); + XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, + s->width, h); + XSetForeground (s->display, s->gc, xgcv.foreground); + } + } + + /* Draw relief. */ + if (!relief_drawn_p && s->face->box != FACE_NO_BOX) + x_draw_glyph_string_box (s); + } + + /* Reset clipping. */ + mac_reset_clipping (s->display, s->window); +} + + +static int x_fill_composite_glyph_string P_ ((struct glyph_string *, + struct face **, int)); + + +/* Fill glyph string S with composition components specified by S->cmp. + + FACES is an array of faces for all components of this composition. + S->gidx is the index of the first component for S. + OVERLAPS_P non-zero means S should draw the foreground only, and + use its physical height for clipping. + + Value is the index of a component not in S. */ + +static int +x_fill_composite_glyph_string (s, faces, overlaps_p) + struct glyph_string *s; + struct face **faces; + int overlaps_p; +{ + int i; + + xassert (s); + + s->for_overlaps_p = overlaps_p; + + s->face = faces[s->gidx]; + s->font = s->face->font; + s->font_info = FONT_INFO_FROM_ID (s->f, s->face->font_info_id); + + /* For all glyphs of this composition, starting at the offset + S->gidx, until we reach the end of the definition or encounter a + glyph that requires the different face, add it to S. */ + ++s->nchars; + for (i = s->gidx + 1; i < s->cmp->glyph_len && faces[i] == s->face; ++i) + ++s->nchars; + + /* All glyph strings for the same composition has the same width, + i.e. the width set for the first component of the composition. */ + + s->width = s->first_glyph->pixel_width; + + /* If the specified font could not be loaded, use the frame's + default font, but record the fact that we couldn't load it in + the glyph string so that we can draw rectangles for the + characters of the glyph string. */ + if (s->font == NULL) + { + s->font_not_found_p = 1; + s->font = FRAME_FONT (s->f); + } + + /* Adjust base line for subscript/superscript text. */ + s->ybase += s->first_glyph->voffset; + + xassert (s->face && s->face->gc); + + /* This glyph string must always be drawn with 16-bit functions. */ + s->two_byte_p = 1; + + return s->gidx + s->nchars; +} + + +/* Fill glyph string S from a sequence of character glyphs. + + FACE_ID is the face id of the string. START is the index of the + first glyph to consider, END is the index of the last + 1. + OVERLAPS_P non-zero means S should draw the foreground only, and + use its physical height for clipping. + + Value is the index of the first glyph not in S. */ + +static int +x_fill_glyph_string (s, face_id, start, end, overlaps_p) + struct glyph_string *s; + int face_id; + int start, end, overlaps_p; +{ + struct glyph *glyph, *last; + int voffset; + int glyph_not_available_p; + + xassert (s->f == XFRAME (s->w->frame)); + xassert (s->nchars == 0); + xassert (start >= 0 && end > start); + + s->for_overlaps_p = overlaps_p; + glyph = s->row->glyphs[s->area] + start; + last = s->row->glyphs[s->area] + end; + voffset = glyph->voffset; + + glyph_not_available_p = glyph->glyph_not_available_p; + + while (glyph < last + && glyph->type == CHAR_GLYPH + && glyph->voffset == voffset + /* Same face id implies same font, nowadays. */ + && glyph->face_id == face_id + && glyph->glyph_not_available_p == glyph_not_available_p) + { + int two_byte_p; + + s->face = x_get_glyph_face_and_encoding (s->f, glyph, + s->char2b + s->nchars, + &two_byte_p); + s->two_byte_p = two_byte_p; + ++s->nchars; + xassert (s->nchars <= end - start); + s->width += glyph->pixel_width; + ++glyph; + } + + s->font = s->face->font; + s->font_info = FONT_INFO_FROM_ID (s->f, s->face->font_info_id); + + /* If the specified font could not be loaded, use the frame's font, + but record the fact that we couldn't load it in + S->font_not_found_p so that we can draw rectangles for the + characters of the glyph string. */ + if (s->font == NULL || glyph_not_available_p) + { + s->font_not_found_p = 1; + s->font = FRAME_FONT (s->f); + } + + /* Adjust base line for subscript/superscript text. */ + s->ybase += voffset; + + xassert (s->face && s->face->gc); + return glyph - s->row->glyphs[s->area]; +} + + +/* Fill glyph string S from image glyph S->first_glyph. */ + +static void +x_fill_image_glyph_string (s) + struct glyph_string *s; +{ + xassert (s->first_glyph->type == IMAGE_GLYPH); + s->img = IMAGE_FROM_ID (s->f, s->first_glyph->u.img_id); + xassert (s->img); + s->face = FACE_FROM_ID (s->f, s->first_glyph->face_id); + s->font = s->face->font; + s->width = s->first_glyph->pixel_width; + + /* Adjust base line for subscript/superscript text. */ + s->ybase += s->first_glyph->voffset; +} + + +/* Fill glyph string S from a sequence of stretch glyphs. + + ROW is the glyph row in which the glyphs are found, AREA is the + area within the row. START is the index of the first glyph to + consider, END is the index of the last + 1. + + Value is the index of the first glyph not in S. */ + +static int +x_fill_stretch_glyph_string (s, row, area, start, end) + struct glyph_string *s; + struct glyph_row *row; + enum glyph_row_area area; + int start, end; +{ + struct glyph *glyph, *last; + int voffset, face_id; + + xassert (s->first_glyph->type == STRETCH_GLYPH); + + glyph = s->row->glyphs[s->area] + start; + last = s->row->glyphs[s->area] + end; + face_id = glyph->face_id; + s->face = FACE_FROM_ID (s->f, face_id); + s->font = s->face->font; + s->font_info = FONT_INFO_FROM_ID (s->f, s->face->font_info_id); + s->width = glyph->pixel_width; + voffset = glyph->voffset; + + for (++glyph; + (glyph < last + && glyph->type == STRETCH_GLYPH + && glyph->voffset == voffset + && glyph->face_id == face_id); + ++glyph) + s->width += glyph->pixel_width; + + /* Adjust base line for subscript/superscript text. */ + s->ybase += voffset; + + xassert (s->face); + return glyph - s->row->glyphs[s->area]; +} + + +/* Initialize glyph string S. CHAR2B is a suitably allocated vector + of XChar2b structures for S; it can't be allocated in + x_init_glyph_string because it must be allocated via `alloca'. W + is the window on which S is drawn. ROW and AREA are the glyph row + and area within the row from which S is constructed. START is the + index of the first glyph structure covered by S. HL is a + face-override for drawing S. */ + +static void +x_init_glyph_string (s, char2b, w, row, area, start, hl) + struct glyph_string *s; + XChar2b *char2b; + struct window *w; + struct glyph_row *row; + enum glyph_row_area area; + int start; + enum draw_glyphs_face hl; +{ + bzero (s, sizeof *s); + s->w = w; + s->f = XFRAME (w->frame); + s->display = FRAME_MAC_DISPLAY (s->f); + s->window = FRAME_MAC_WINDOW (s->f); + s->char2b = char2b; + s->hl = hl; + s->row = row; + s->area = area; + s->first_glyph = row->glyphs[area] + start; + s->height = row->height; + s->y = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); + + /* Display the internal border below the tool-bar window. */ + if (s->w == XWINDOW (s->f->tool_bar_window)) + s->y -= s->f->output_data.mac->internal_border_width; + + s->ybase = s->y + row->ascent; +} + + +/* Set background width of glyph string S. START is the index of the + first glyph following S. LAST_X is the right-most x-position + 1 + in the drawing area. */ + +static INLINE void +x_set_glyph_string_background_width (s, start, last_x) + struct glyph_string *s; + int start; + int last_x; +{ + /* If the face of this glyph string has to be drawn to the end of + the drawing area, set S->extends_to_end_of_line_p. */ + struct face *default_face = FACE_FROM_ID (s->f, DEFAULT_FACE_ID); + + if (start == s->row->used[s->area] + && s->area == TEXT_AREA + && ((s->hl == DRAW_NORMAL_TEXT + && (s->row->fill_line_p + || s->face->background != default_face->background + || s->face->stipple != default_face->stipple + || s->row->mouse_face_p)) + || s->hl == DRAW_MOUSE_FACE + || ((s->hl == DRAW_IMAGE_RAISED || s->hl == DRAW_IMAGE_SUNKEN) + && s->row->fill_line_p))) + s->extends_to_end_of_line_p = 1; + + /* If S extends its face to the end of the line, set its + background_width to the distance to the right edge of the drawing + area. */ + if (s->extends_to_end_of_line_p) + s->background_width = last_x - s->x + 1; + else + s->background_width = s->width; +} + + +/* Add a glyph string for a stretch glyph to the list of strings + between HEAD and TAIL. START is the index of the stretch glyph in + row area AREA of glyph row ROW. END is the index of the last glyph + in that glyph row area. X is the current output position assigned + to the new glyph string constructed. HL overrides that face of the + glyph; e.g. it is DRAW_CURSOR if a cursor has to be drawn. LAST_X + is the right-most x-position of the drawing area. */ + +/* SunOS 4 bundled cc, barfed on continuations in the arg lists here + and below -- keep them on one line. */ +#define BUILD_STRETCH_GLYPH_STRING(W, ROW, AREA, START, END, HEAD, TAIL, HL, X, LAST_X) \ + do \ + { \ + s = (struct glyph_string *) alloca (sizeof *s); \ + x_init_glyph_string (s, NULL, W, ROW, AREA, START, HL); \ + START = x_fill_stretch_glyph_string (s, ROW, AREA, START, END); \ + x_append_glyph_string (&HEAD, &TAIL, s); \ + s->x = (X); \ + } \ + while (0) + + +/* Add a glyph string for an image glyph to the list of strings + between HEAD and TAIL. START is the index of the image glyph in + row area AREA of glyph row ROW. END is the index of the last glyph + in that glyph row area. X is the current output position assigned + to the new glyph string constructed. HL overrides that face of the + glyph; e.g. it is DRAW_CURSOR if a cursor has to be drawn. LAST_X + is the right-most x-position of the drawing area. */ + +#define BUILD_IMAGE_GLYPH_STRING(W, ROW, AREA, START, END, HEAD, TAIL, HL, X, LAST_X) \ + do \ + { \ + s = (struct glyph_string *) alloca (sizeof *s); \ + x_init_glyph_string (s, NULL, W, ROW, AREA, START, HL); \ + x_fill_image_glyph_string (s); \ + x_append_glyph_string (&HEAD, &TAIL, s); \ + ++START; \ + s->x = (X); \ + } \ + while (0) + + +/* Add a glyph string for a sequence of character glyphs to the list + of strings between HEAD and TAIL. START is the index of the first + glyph in row area AREA of glyph row ROW that is part of the new + glyph string. END is the index of the last glyph in that glyph row + area. X is the current output position assigned to the new glyph + string constructed. HL overrides that face of the glyph; e.g. it + is DRAW_CURSOR if a cursor has to be drawn. LAST_X is the + right-most x-position of the drawing area. */ + +#define BUILD_CHAR_GLYPH_STRINGS(W, ROW, AREA, START, END, HEAD, TAIL, HL, X, LAST_X, OVERLAPS_P) \ + do \ + { \ + int c, face_id; \ + XChar2b *char2b; \ + \ + c = (ROW)->glyphs[AREA][START].u.ch; \ + face_id = (ROW)->glyphs[AREA][START].face_id; \ + \ + s = (struct glyph_string *) alloca (sizeof *s); \ + char2b = (XChar2b *) alloca ((END - START) * sizeof *char2b); \ + x_init_glyph_string (s, char2b, W, ROW, AREA, START, HL); \ + x_append_glyph_string (&HEAD, &TAIL, s); \ + s->x = (X); \ + START = x_fill_glyph_string (s, face_id, START, END, \ + OVERLAPS_P); \ + } \ + while (0) + + +/* Add a glyph string for a composite sequence to the list of strings + between HEAD and TAIL. START is the index of the first glyph in + row area AREA of glyph row ROW that is part of the new glyph + string. END is the index of the last glyph in that glyph row area. + X is the current output position assigned to the new glyph string + constructed. HL overrides that face of the glyph; e.g. it is + DRAW_CURSOR if a cursor has to be drawn. LAST_X is the right-most + x-position of the drawing area. */ + +#define BUILD_COMPOSITE_GLYPH_STRING(W, ROW, AREA, START, END, HEAD, TAIL, HL, X, LAST_X, OVERLAPS_P) \ + do { \ + int cmp_id = (ROW)->glyphs[AREA][START].u.cmp_id; \ + int face_id = (ROW)->glyphs[AREA][START].face_id; \ + struct face *base_face = FACE_FROM_ID (XFRAME (w->frame), face_id); \ + struct composition *cmp = composition_table[cmp_id]; \ + int glyph_len = cmp->glyph_len; \ + XChar2b *char2b; \ + struct face **faces; \ + struct glyph_string *first_s = NULL; \ + int n; \ + \ + base_face = base_face->ascii_face; \ + char2b = (XChar2b *) alloca ((sizeof *char2b) * glyph_len); \ + faces = (struct face **) alloca ((sizeof *faces) * glyph_len); \ + /* At first, fill in `char2b' and `faces'. */ \ + for (n = 0; n < glyph_len; n++) \ + { \ + int c = COMPOSITION_GLYPH (cmp, n); \ + int this_face_id = FACE_FOR_CHAR (XFRAME (w->frame), base_face, c); \ + faces[n] = FACE_FROM_ID (XFRAME (w->frame), this_face_id); \ + x_get_char_face_and_encoding (XFRAME (w->frame), c, \ + this_face_id, char2b + n, 1); \ + } \ + \ + /* Make glyph_strings for each glyph sequence that is drawable by \ + the same face, and append them to HEAD/TAIL. */ \ + for (n = 0; n < cmp->glyph_len;) \ + { \ + s = (struct glyph_string *) alloca (sizeof *s); \ + x_init_glyph_string (s, char2b + n, W, ROW, AREA, START, HL); \ + x_append_glyph_string (&(HEAD), &(TAIL), s); \ + s->cmp = cmp; \ + s->gidx = n; \ + s->x = (X); \ + \ + if (n == 0) \ + first_s = s; \ + \ + n = x_fill_composite_glyph_string (s, faces, OVERLAPS_P); \ + } \ + \ + ++START; \ + s = first_s; \ + } while (0) + + +/* Build a list of glyph strings between HEAD and TAIL for the glyphs + of AREA of glyph row ROW on window W between indices START and END. + HL overrides the face for drawing glyph strings, e.g. it is + DRAW_CURSOR to draw a cursor. X and LAST_X are start and end + x-positions of the drawing area. + + This is an ugly monster macro construct because we must use alloca + to allocate glyph strings (because x_draw_glyphs can be called + asynchronously). */ + +#define BUILD_GLYPH_STRINGS(W, ROW, AREA, START, END, HEAD, TAIL, HL, X, LAST_X, OVERLAPS_P) \ + do \ + { \ + HEAD = TAIL = NULL; \ + while (START < END) \ + { \ + struct glyph *first_glyph = (ROW)->glyphs[AREA] + START; \ + switch (first_glyph->type) \ + { \ + case CHAR_GLYPH: \ + BUILD_CHAR_GLYPH_STRINGS (W, ROW, AREA, START, END, HEAD, \ + TAIL, HL, X, LAST_X, \ + OVERLAPS_P); \ + break; \ + \ + case COMPOSITE_GLYPH: \ + BUILD_COMPOSITE_GLYPH_STRING (W, ROW, AREA, START, END, \ + HEAD, TAIL, HL, X, LAST_X,\ + OVERLAPS_P); \ + break; \ + \ + case STRETCH_GLYPH: \ + BUILD_STRETCH_GLYPH_STRING (W, ROW, AREA, START, END, \ + HEAD, TAIL, HL, X, LAST_X); \ + break; \ + \ + case IMAGE_GLYPH: \ + BUILD_IMAGE_GLYPH_STRING (W, ROW, AREA, START, END, HEAD, \ + TAIL, HL, X, LAST_X); \ + break; \ + \ + default: \ + abort (); \ + } \ + \ + x_set_glyph_string_background_width (s, START, LAST_X); \ + (X) += s->width; \ + } \ + } \ + while (0) + + +/* Draw glyphs between START and END in AREA of ROW on window W, + starting at x-position X. X is relative to AREA in W. HL is a + face-override with the following meaning: + + DRAW_NORMAL_TEXT draw normally + DRAW_CURSOR draw in cursor face + DRAW_MOUSE_FACE draw in mouse face. + DRAW_INVERSE_VIDEO draw in mode line face + DRAW_IMAGE_SUNKEN draw an image with a sunken relief around it + DRAW_IMAGE_RAISED draw an image with a raised relief around it + + If OVERLAPS_P is non-zero, draw only the foreground of characters + and clip to the physical height of ROW. + + Value is the x-position reached, relative to AREA of W. */ + +static int +x_draw_glyphs (w, x, row, area, start, end, hl, overlaps_p) + struct window *w; + int x; + struct glyph_row *row; + enum glyph_row_area area; + int start, end; + enum draw_glyphs_face hl; + int overlaps_p; +{ + struct glyph_string *head, *tail; + struct glyph_string *s; + int last_x, area_width; + int x_reached; + int i, j; + + /* Let's rather be paranoid than getting a SEGV. */ + end = min (end, row->used[area]); + start = max (0, start); + start = min (end, start); + + /* Translate X to frame coordinates. Set last_x to the right + end of the drawing area. */ + if (row->full_width_p) + { + /* X is relative to the left edge of W, without scroll bars + or fringes. */ + struct frame *f = XFRAME (WINDOW_FRAME (w)); + int window_left_x = WINDOW_LEFT_MARGIN (w) * CANON_X_UNIT (f); + + x += window_left_x; + area_width = XFASTINT (w->width) * CANON_X_UNIT (f); + last_x = window_left_x + area_width; + + if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) + { + int width = FRAME_SCROLL_BAR_WIDTH (f) * CANON_X_UNIT (f); + if (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)) + last_x += width; + else + x -= width; + } + + x += FRAME_INTERNAL_BORDER_WIDTH (f); + last_x -= FRAME_INTERNAL_BORDER_WIDTH (f); + } + else + { + x = WINDOW_AREA_TO_FRAME_PIXEL_X (w, area, x); + area_width = window_box_width (w, area); + last_x = WINDOW_AREA_TO_FRAME_PIXEL_X (w, area, area_width); + } + + /* Build a doubly-linked list of glyph_string structures between + head and tail from what we have to draw. Note that the macro + BUILD_GLYPH_STRINGS will modify its start parameter. That's + the reason we use a separate variable `i'. */ + i = start; + BUILD_GLYPH_STRINGS (w, row, area, i, end, head, tail, hl, x, last_x, + overlaps_p); + if (tail) + x_reached = tail->x + tail->background_width; + else + x_reached = x; + + /* If there are any glyphs with lbearing < 0 or rbearing > width in + the row, redraw some glyphs in front or following the glyph + strings built above. */ + if (head && !overlaps_p && row->contains_overlapping_glyphs_p) + { + int dummy_x = 0; + struct glyph_string *h, *t; + + /* Compute overhangs for all glyph strings. */ + for (s = head; s; s = s->next) + x_compute_glyph_string_overhangs (s); + + /* Prepend glyph strings for glyphs in front of the first glyph + string that are overwritten because of the first glyph + string's left overhang. The background of all strings + prepended must be drawn because the first glyph string + draws over it. */ + i = x_left_overwritten (head); + if (i >= 0) + { + j = i; + BUILD_GLYPH_STRINGS (w, row, area, j, start, h, t, + DRAW_NORMAL_TEXT, dummy_x, last_x, + overlaps_p); + start = i; + x_compute_overhangs_and_x (t, head->x, 1); + x_prepend_glyph_string_lists (&head, &tail, h, t); + } + + /* Prepend glyph strings for glyphs in front of the first glyph + string that overwrite that glyph string because of their + right overhang. For these strings, only the foreground must + be drawn, because it draws over the glyph string at `head'. + The background must not be drawn because this would overwrite + right overhangs of preceding glyphs for which no glyph + strings exist. */ + i = x_left_overwriting (head); + if (i >= 0) + { + BUILD_GLYPH_STRINGS (w, row, area, i, start, h, t, + DRAW_NORMAL_TEXT, dummy_x, last_x, + overlaps_p); + for (s = h; s; s = s->next) + s->background_filled_p = 1; + x_compute_overhangs_and_x (t, head->x, 1); + x_prepend_glyph_string_lists (&head, &tail, h, t); + } + + /* Append glyphs strings for glyphs following the last glyph + string tail that are overwritten by tail. The background of + these strings has to be drawn because tail's foreground draws + over it. */ + i = x_right_overwritten (tail); + if (i >= 0) + { + BUILD_GLYPH_STRINGS (w, row, area, end, i, h, t, + DRAW_NORMAL_TEXT, x, last_x, + overlaps_p); + x_compute_overhangs_and_x (h, tail->x + tail->width, 0); + x_append_glyph_string_lists (&head, &tail, h, t); + } + + /* Append glyph strings for glyphs following the last glyph + string tail that overwrite tail. The foreground of such + glyphs has to be drawn because it writes into the background + of tail. The background must not be drawn because it could + paint over the foreground of following glyphs. */ + i = x_right_overwriting (tail); + if (i >= 0) + { + BUILD_GLYPH_STRINGS (w, row, area, end, i, h, t, + DRAW_NORMAL_TEXT, x, last_x, + overlaps_p); + for (s = h; s; s = s->next) + s->background_filled_p = 1; + x_compute_overhangs_and_x (h, tail->x + tail->width, 0); + x_append_glyph_string_lists (&head, &tail, h, t); + } + } + + /* Draw all strings. */ + for (s = head; s; s = s->next) + x_draw_glyph_string (s); + + if (area == TEXT_AREA + && !row->full_width_p + /* When drawing overlapping rows, only the glyph strings' + foreground is drawn, which doesn't erase a cursor + completely. */ + && !overlaps_p) + { + int x0 = head ? head->x : x; + int x1 = tail ? tail->x + tail->background_width : x; + + x0 = FRAME_TO_WINDOW_PIXEL_X (w, x0); + x1 = FRAME_TO_WINDOW_PIXEL_X (w, x1); + + if (!row->full_width_p && XFASTINT (w->left_margin_width) != 0) + { + int left_area_width = window_box_width (w, LEFT_MARGIN_AREA); + x0 -= left_area_width; + x1 -= left_area_width; + } + + notice_overwritten_cursor (w, area, x0, x1, + row->y, MATRIX_ROW_BOTTOM_Y (row)); + } + + /* Value is the x-position up to which drawn, relative to AREA of W. + This doesn't include parts drawn because of overhangs. */ + x_reached = FRAME_TO_WINDOW_PIXEL_X (w, x_reached); + if (!row->full_width_p) + { + if (area > LEFT_MARGIN_AREA) + x_reached -= window_box_width (w, LEFT_MARGIN_AREA); + if (area > TEXT_AREA) + x_reached -= window_box_width (w, TEXT_AREA); + } + + return x_reached; +} + + +/* Fix the display of area AREA of overlapping row ROW in window W. */ + +static void +x_fix_overlapping_area (w, row, area) + struct window *w; + struct glyph_row *row; + enum glyph_row_area area; +{ + int i, x; + + BLOCK_INPUT; + + if (area == LEFT_MARGIN_AREA) + x = 0; + else if (area == TEXT_AREA) + x = row->x + window_box_width (w, LEFT_MARGIN_AREA); + else + x = (window_box_width (w, LEFT_MARGIN_AREA) + + window_box_width (w, TEXT_AREA)); + + for (i = 0; i < row->used[area];) + { + if (row->glyphs[area][i].overlaps_vertically_p) + { + int start = i, start_x = x; + + do + { + x += row->glyphs[area][i].pixel_width; + ++i; + } + while (i < row->used[area] + && row->glyphs[area][i].overlaps_vertically_p); + + x_draw_glyphs (w, start_x, row, area, start, i, + DRAW_NORMAL_TEXT, 1); + } + else + { + x += row->glyphs[area][i].pixel_width; + ++i; + } + } + + UNBLOCK_INPUT; +} + + +/* Output LEN glyphs starting at START at the nominal cursor position. + Advance the nominal cursor over the text. The global variable + updated_window contains the window being updated, updated_row is + the glyph row being updated, and updated_area is the area of that + row being updated. */ + +static void +x_write_glyphs (start, len) + struct glyph *start; + int len; +{ + int x, hpos; + + xassert (updated_window && updated_row); + BLOCK_INPUT; + + /* Write glyphs. */ + + hpos = start - updated_row->glyphs[updated_area]; + x = x_draw_glyphs (updated_window, output_cursor.x, + updated_row, updated_area, + hpos, hpos + len, + DRAW_NORMAL_TEXT, 0); + + UNBLOCK_INPUT; + + /* Advance the output cursor. */ + output_cursor.hpos += len; + output_cursor.x = x; +} + + +/* Insert LEN glyphs from START at the nominal cursor position. */ + +static void +x_insert_glyphs (start, len) + struct glyph *start; + register int len; +{ + struct frame *f; + struct window *w; + int line_height, shift_by_width, shifted_region_width; + struct glyph_row *row; + struct glyph *glyph; + int frame_x, frame_y, hpos; + + xassert (updated_window && updated_row); + BLOCK_INPUT; + w = updated_window; + f = XFRAME (WINDOW_FRAME (w)); + + /* Get the height of the line we are in. */ + row = updated_row; + line_height = row->height; + + /* Get the width of the glyphs to insert. */ + shift_by_width = 0; + for (glyph = start; glyph < start + len; ++glyph) + shift_by_width += glyph->pixel_width; + + /* Get the width of the region to shift right. */ + shifted_region_width = (window_box_width (w, updated_area) + - output_cursor.x + - shift_by_width); + + /* Shift right. */ + frame_x = window_box_left (w, updated_area) + output_cursor.x; + frame_y = WINDOW_TO_FRAME_PIXEL_Y (w, output_cursor.y); + + mac_scroll_area (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + f->output_data.mac->normal_gc, + frame_x, frame_y, + shifted_region_width, line_height, + frame_x + shift_by_width, frame_y); + + /* Write the glyphs. */ + hpos = start - row->glyphs[updated_area]; + x_draw_glyphs (w, output_cursor.x, row, updated_area, hpos, hpos + len, + DRAW_NORMAL_TEXT, 0); + + /* Advance the output cursor. */ + output_cursor.hpos += len; + output_cursor.x += shift_by_width; + UNBLOCK_INPUT; +} + + +/* Delete N glyphs at the nominal cursor position. Not implemented + for X frames. */ + +static void +x_delete_glyphs (n) + register int n; +{ + abort (); +} + + +/* Erase the current text line from the nominal cursor position + (inclusive) to pixel column TO_X (exclusive). The idea is that + everything from TO_X onward is already erased. + + TO_X is a pixel position relative to updated_area of + updated_window. TO_X == -1 means clear to the end of this area. */ + +static void +x_clear_end_of_line (to_x) + int to_x; +{ + struct frame *f; + struct window *w = updated_window; + int max_x, min_y, max_y; + int from_x, from_y, to_y; + + xassert (updated_window && updated_row); + f = XFRAME (w->frame); + + if (updated_row->full_width_p) + { + max_x = XFASTINT (w->width) * CANON_X_UNIT (f); + if (FRAME_HAS_VERTICAL_SCROLL_BARS (f) + && !w->pseudo_window_p) + max_x += FRAME_SCROLL_BAR_WIDTH (f) * CANON_X_UNIT (f); + } + else + max_x = window_box_width (w, updated_area); + max_y = window_text_bottom_y (w); + + /* TO_X == 0 means don't do anything. TO_X < 0 means clear to end + of window. For TO_X > 0, truncate to end of drawing area. */ + if (to_x == 0) + return; + else if (to_x < 0) + to_x = max_x; + else + to_x = min (to_x, max_x); + + to_y = min (max_y, output_cursor.y + updated_row->height); + + /* Notice if the cursor will be cleared by this operation. */ + if (!updated_row->full_width_p) + notice_overwritten_cursor (w, updated_area, + output_cursor.x, -1, + updated_row->y, + MATRIX_ROW_BOTTOM_Y (updated_row)); + + from_x = output_cursor.x; + + /* Translate to frame coordinates. */ + if (updated_row->full_width_p) + { + from_x = WINDOW_TO_FRAME_PIXEL_X (w, from_x); + to_x = WINDOW_TO_FRAME_PIXEL_X (w, to_x); + } + else + { + from_x = WINDOW_AREA_TO_FRAME_PIXEL_X (w, updated_area, from_x); + to_x = WINDOW_AREA_TO_FRAME_PIXEL_X (w, updated_area, to_x); + } + + min_y = WINDOW_DISPLAY_HEADER_LINE_HEIGHT (w); + from_y = WINDOW_TO_FRAME_PIXEL_Y (w, max (min_y, output_cursor.y)); + to_y = WINDOW_TO_FRAME_PIXEL_Y (w, to_y); + + /* Prevent inadvertently clearing to end of the X window. */ + if (to_x > from_x && to_y > from_y) + { + BLOCK_INPUT; + XClearArea (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + from_x, from_y, to_x - from_x, to_y - from_y, + 0); + UNBLOCK_INPUT; + } +} + + +/* Clear entire frame. If updating_frame is non-null, clear that + frame. Otherwise clear the selected frame. */ + +static void +x_clear_frame () +{ + struct frame *f; + + if (updating_frame) + f = updating_frame; + else + f = SELECTED_FRAME (); + + /* Clearing the frame will erase any cursor, so mark them all as no + longer visible. */ + mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f))); + output_cursor.hpos = output_cursor.vpos = 0; + output_cursor.x = -1; + + /* We don't set the output cursor here because there will always + follow an explicit cursor_to. */ + BLOCK_INPUT; + XClearWindow (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f)); + +#if 0 /* Clearing frame on Mac OS clears scroll bars. */ + /* We have to clear the scroll bars, too. If we have changed + colors or something like that, then they should be notified. */ + x_scroll_bar_clear (f); +#endif + + XFlush (FRAME_MAC_DISPLAY (f)); + UNBLOCK_INPUT; +} + + + +/* Invert the middle quarter of the frame for .15 sec. */ + +/* We use the select system call to do the waiting, so we have to make + sure it's available. If it isn't, we just won't do visual bells. */ + +#if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) + +/* Subtract the `struct timeval' values X and Y, storing the result in + *RESULT. Return 1 if the difference is negative, otherwise 0. */ + +static int +timeval_subtract (result, x, y) + struct timeval *result, x, y; +{ + /* Perform the carry for the later subtraction by updating y. This + is safer because on some systems the tv_sec member is unsigned. */ + if (x.tv_usec < y.tv_usec) + { + int nsec = (y.tv_usec - x.tv_usec) / 1000000 + 1; + y.tv_usec -= 1000000 * nsec; + y.tv_sec += nsec; + } + + if (x.tv_usec - y.tv_usec > 1000000) + { + int nsec = (y.tv_usec - x.tv_usec) / 1000000; + y.tv_usec += 1000000 * nsec; + y.tv_sec -= nsec; + } + + /* Compute the time remaining to wait. tv_usec is certainly + positive. */ + result->tv_sec = x.tv_sec - y.tv_sec; + result->tv_usec = x.tv_usec - y.tv_usec; + + /* Return indication of whether the result should be considered + negative. */ + return x.tv_sec < y.tv_sec; +} + +void +XTflash (f) + struct frame *f; +{ + BLOCK_INPUT; + + FlashMenuBar (0); + + { + struct timeval wakeup; + + EMACS_GET_TIME (wakeup); + + /* Compute time to wait until, propagating carry from usecs. */ + wakeup.tv_usec += 150000; + wakeup.tv_sec += (wakeup.tv_usec / 1000000); + wakeup.tv_usec %= 1000000; + + /* Keep waiting until past the time wakeup. */ + while (1) + { + struct timeval timeout; + + EMACS_GET_TIME (timeout); + + /* In effect, timeout = wakeup - timeout. + Break if result would be negative. */ + if (timeval_subtract (&timeout, wakeup, timeout)) + break; + + /* Try to wait that long--but we might wake up sooner. */ + select (0, NULL, NULL, NULL, &timeout); + } + } + + FlashMenuBar (0); + + UNBLOCK_INPUT; +} + +#endif /* defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) */ + + +/* Make audible bell. */ + +void +XTring_bell () +{ + struct frame *f = SELECTED_FRAME (); + +#if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) + if (visible_bell) + XTflash (f); + else +#endif + { + BLOCK_INPUT; + SysBeep (1); + XFlush (FRAME_MAC_DISPLAY (f)); + UNBLOCK_INPUT; + } +} + + + +/* Specify how many text lines, from the top of the window, + should be affected by insert-lines and delete-lines operations. + This, and those operations, are used only within an update + that is bounded by calls to x_update_begin and x_update_end. */ + +void +XTset_terminal_window (n) + register int n; +{ + /* This function intentionally left blank. */ +} + + + +/*********************************************************************** + Line Dance + ***********************************************************************/ + +/* Perform an insert-lines or delete-lines operation, inserting N + lines or deleting -N lines at vertical position VPOS. */ + +static void +x_ins_del_lines (vpos, n) + int vpos, n; +{ + abort (); +} + + +/* Scroll part of the display as described by RUN. */ + +static void +x_scroll_run (w, run) + struct window *w; + struct run *run; +{ + struct frame *f = XFRAME (w->frame); + int x, y, width, height, from_y, to_y, bottom_y; + + /* Get frame-relative bounding box of the text display area of W, + without mode lines. Include in this box the left and right + fringes of W. */ + window_box (w, -1, &x, &y, &width, &height); + width += FRAME_X_FRINGE_WIDTH (f); + x -= FRAME_X_LEFT_FRINGE_WIDTH (f); + + from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y); + to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y); + bottom_y = y + height; + + if (to_y < from_y) + { + /* Scrolling up. Make sure we don't copy part of the mode + line at the bottom. */ + if (from_y + run->height > bottom_y) + height = bottom_y - from_y; + else + height = run->height; + } + else + { + /* Scolling down. Make sure we don't copy over the mode line. + at the bottom. */ + if (to_y + run->height > bottom_y) + height = bottom_y - to_y; + else + height = run->height; + } + + BLOCK_INPUT; + + /* Cursor off. Will be switched on again in x_update_window_end. */ + updated_window = w; + x_clear_cursor (w); + + mac_scroll_area (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + f->output_data.mac->normal_gc, + x, from_y, + width, height, + x, to_y); + + UNBLOCK_INPUT; +} + + + +/*********************************************************************** + Exposure Events + ***********************************************************************/ + +/* Redisplay an exposed area of frame F. X and Y are the upper-left + corner of the exposed rectangle. W and H are width and height of + the exposed area. All are pixel values. W or H zero means redraw + the entire frame. */ + +static void +expose_frame (f, x, y, w, h) + struct frame *f; + int x, y, w, h; +{ + Rect r; + int mouse_face_overwritten_p = 0; + + TRACE ((stderr, "expose_frame ")); + + /* No need to redraw if frame will be redrawn soon. */ + if (FRAME_GARBAGED_P (f)) + { + TRACE ((stderr, " garbaged\n")); + return; + } + + /* MAC_TODO: this is a kludge, but if scroll bars are not activated + or deactivated here, for unknown reasons, activated scroll bars + are shown in deactivated frames in some instances. */ + if (f == FRAME_MAC_DISPLAY_INFO (f)->x_focus_frame) + activate_scroll_bars (f); + else + deactivate_scroll_bars (f); + + /* If basic faces haven't been realized yet, there is no point in + trying to redraw anything. This can happen when we get an expose + event while Emacs is starting, e.g. by moving another window. */ + if (FRAME_FACE_CACHE (f) == NULL + || FRAME_FACE_CACHE (f)->used < BASIC_FACE_ID_SENTINEL) + { + TRACE ((stderr, " no faces\n")); + return; + } + + if (w == 0 || h == 0) + { + r.left = r.top = 0; + r.right = CANON_X_UNIT (f) * f->width; + r.bottom = CANON_Y_UNIT (f) * f->height; + } + else + { + r.left = x; + r.top = y; + r.right = x + w; + r.bottom = y + h; + } + + TRACE ((stderr, "(%d, %d, %d, %d)\n", r.left, r.top, r.right, r.bottom)); + mouse_face_overwritten_p = expose_window_tree (XWINDOW (f->root_window), &r); + + if (WINDOWP (f->tool_bar_window)) + mouse_face_overwritten_p + |= expose_window (XWINDOW (f->tool_bar_window), &r); + + /* Some window managers support a focus-follows-mouse style with + delayed raising of frames. Imagine a partially obscured frame, + and moving the mouse into partially obscured mouse-face on that + frame. The visible part of the mouse-face will be highlighted, + then the WM raises the obscured frame. With at least one WM, KDE + 2.1, Emacs is not getting any event for the raising of the frame + (even tried with SubstructureRedirectMask), only Expose events. + These expose events will draw text normally, i.e. not + highlighted. Which means we must redo the highlight here. + Subsume it under ``we love X''. --gerd 2001-08-15 */ + /* Included in Windows version because Windows most likely does not + do the right thing if any third party tool offers + focus-follows-mouse with delayed raise. --jason 2001-10-12 */ + if (mouse_face_overwritten_p && !FRAME_GARBAGED_P (f)) + { + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + if (f == dpyinfo->mouse_face_mouse_frame) + { + int x = dpyinfo->mouse_face_mouse_x; + int y = dpyinfo->mouse_face_mouse_y; + clear_mouse_face (dpyinfo); + note_mouse_highlight (f, x, y); + } + } +} + + +/* Redraw (parts) of all windows in the window tree rooted at W that + intersect R. R contains frame pixel coordinates. */ + +static int +expose_window_tree (w, r) + struct window *w; + Rect *r; +{ + struct frame *f = XFRAME (w->frame); + int mouse_face_overwritten_p = 0; + + while (w && !FRAME_GARBAGED_P (f)) + { + if (!NILP (w->hchild)) + mouse_face_overwritten_p + |= expose_window_tree (XWINDOW (w->hchild), r); + else if (!NILP (w->vchild)) + mouse_face_overwritten_p + |= expose_window_tree (XWINDOW (w->vchild), r); + else + mouse_face_overwritten_p |= expose_window (w, r); + + w = NILP (w->next) ? NULL : XWINDOW (w->next); + } + + return mouse_face_overwritten_p; +} + + +/* Redraw the part of glyph row area AREA of glyph row ROW on window W + which intersects rectangle R. R is in window-relative coordinates. */ + +static void +expose_area (w, row, r, area) + struct window *w; + struct glyph_row *row; + Rect *r; + enum glyph_row_area area; +{ + struct glyph *first = row->glyphs[area]; + struct glyph *end = row->glyphs[area] + row->used[area]; + struct glyph *last; + int first_x, start_x, x; + + if (area == TEXT_AREA && row->fill_line_p) + /* If row extends face to end of line write the whole line. */ + x_draw_glyphs (w, 0, row, area, + 0, row->used[area], + DRAW_NORMAL_TEXT, 0); + else + { + /* Set START_X to the window-relative start position for drawing glyphs of + AREA. The first glyph of the text area can be partially visible. + The first glyphs of other areas cannot. */ + if (area == LEFT_MARGIN_AREA) + start_x = 0; + else if (area == TEXT_AREA) + start_x = row->x + window_box_width (w, LEFT_MARGIN_AREA); + else + start_x = (window_box_width (w, LEFT_MARGIN_AREA) + + window_box_width (w, TEXT_AREA)); + x = start_x; + + /* Find the first glyph that must be redrawn. */ + while (first < end + && x + first->pixel_width < r->left) + { + x += first->pixel_width; + ++first; + } + + /* Find the last one. */ + last = first; + first_x = x; + while (last < end + && x < r->right) + { + x += last->pixel_width; + ++last; + } + + /* Repaint. */ + if (last > first) + x_draw_glyphs (w, first_x - start_x, row, area, + first - row->glyphs[area], + last - row->glyphs[area], + DRAW_NORMAL_TEXT, 0); + } +} + + +/* Redraw the parts of the glyph row ROW on window W intersecting + rectangle R. R is in window-relative coordinates. Value is + non-zero if mouse face was overwritten. */ + +static int +expose_line (w, row, r) + struct window *w; + struct glyph_row *row; + Rect *r; +{ + xassert (row->enabled_p); + + if (row->mode_line_p || w->pseudo_window_p) + x_draw_glyphs (w, 0, row, TEXT_AREA, 0, row->used[TEXT_AREA], + DRAW_NORMAL_TEXT, 0); + else + { + if (row->used[LEFT_MARGIN_AREA]) + expose_area (w, row, r, LEFT_MARGIN_AREA); + if (row->used[TEXT_AREA]) + expose_area (w, row, r, TEXT_AREA); + if (row->used[RIGHT_MARGIN_AREA]) + expose_area (w, row, r, RIGHT_MARGIN_AREA); + x_draw_row_fringe_bitmaps (w, row); + } + + return row->mouse_face_p; +} + + +/* Return non-zero if W's cursor intersects rectangle R. */ + +static int +x_phys_cursor_in_rect_p (w, r) + struct window *w; + Rect *r; +{ + Rect cr, result; + struct glyph *cursor_glyph; + + cursor_glyph = get_phys_cursor_glyph (w); + if (cursor_glyph) + { + cr.left = w->phys_cursor.x; + cr.top = w->phys_cursor.y; + cr.right = cr.left + cursor_glyph->pixel_width; + cr.bottom = cr.top + w->phys_cursor_height; + return x_intersect_rectangles (&cr, r, &result); + } + else + return 0; +} + + +/* Redraw the part of window W intersection rectagle FR. Pixel + coordinates in FR are frame relative. Call this function with + input blocked. Value is non-zero if the exposure overwrites + mouse-face. */ + +static int +expose_window (w, fr) + struct window *w; + Rect *fr; +{ + struct frame *f = XFRAME (w->frame); + Rect wr, r; + int mouse_face_overwritten_p = 0; + + /* If window is not yet fully initialized, do nothing. This can + happen when toolkit scroll bars are used and a window is split. + Reconfiguring the scroll bar will generate an expose for a newly + created window. */ + if (w->current_matrix == NULL) + return 0; + + /* When we're currently updating the window, display and current + matrix usually don't agree. Arrange for a thorough display + later. */ + if (w == updated_window) + { + SET_FRAME_GARBAGED (f); + return 0; + } + + /* Frame-relative pixel rectangle of W. */ + wr.left = XFASTINT (w->left) * CANON_X_UNIT (f); + wr.top = XFASTINT (w->top) * CANON_Y_UNIT (f); + wr.right = wr.left + XFASTINT (w->width) * CANON_X_UNIT (f); + wr.bottom = wr.top + XFASTINT (w->height) * CANON_Y_UNIT (f); + + if (x_intersect_rectangles (fr, &wr, &r)) + { + int yb = window_text_bottom_y (w); + struct glyph_row *row; + int cursor_cleared_p; + + TRACE ((stderr, "expose_window (%d, %d, %d, %d)\n", + r.left, r.top, r.right, r.bottom)); + + /* Convert to window coordinates. */ + r.left = FRAME_TO_WINDOW_PIXEL_X (w, r.left); + r.right = FRAME_TO_WINDOW_PIXEL_X (w, r.right); + r.top = FRAME_TO_WINDOW_PIXEL_Y (w, r.top); + r.bottom = FRAME_TO_WINDOW_PIXEL_Y (w, r.bottom); + + /* Turn off the cursor. */ + if (!w->pseudo_window_p + && x_phys_cursor_in_rect_p (w, &r)) + { + x_clear_cursor (w); + cursor_cleared_p = 1; + } + else + cursor_cleared_p = 0; + + /* Find the first row intersecting the rectangle R. */ + for (row = w->current_matrix->rows; + row->enabled_p; + ++row) + { + int y0 = row->y; + int y1 = MATRIX_ROW_BOTTOM_Y (row); + + if ((y0 >= r.top && y0 < r.bottom) + || (y1 > r.top && y1 < r.bottom) + || (r.top >= y0 && r.top < y1) + || (r.bottom > y0 && r.bottom < y1)) + { + if (expose_line (w, row, &r)) + mouse_face_overwritten_p = 1; + } + + if (y1 >= yb) + break; + } + + /* Display the mode line if there is one. */ + if (WINDOW_WANTS_MODELINE_P (w) + && (row = MATRIX_MODE_LINE_ROW (w->current_matrix), + row->enabled_p) + && row->y < r.bottom) + { + if (expose_line (w, row, &r)) + mouse_face_overwritten_p = 1; + } + + if (!w->pseudo_window_p) + { + /* Draw border between windows. */ + x_draw_vertical_border (w); + + /* Turn the cursor on again. */ + if (cursor_cleared_p) + x_update_window_cursor (w, 1); + } + } + + /* Display scroll bar for this window. */ + if (!NILP (w->vertical_scroll_bar)) + { + ControlHandle ch + = SCROLL_BAR_CONTROL_HANDLE (XSCROLL_BAR (w->vertical_scroll_bar)); + + Draw1Control (ch); + } + + return mouse_face_overwritten_p; +} + +static int +x_intersect_rectangles (r1, r2, result) + Rect *r1, *r2, *result; +{ + Rect *left, *right; + Rect *upper, *lower; + int intersection_p = 0; + + /* Rerrange so that R1 is the left-most rectangle. */ + if (r1->left < r2->left) + left = r1, right = r2; + else + left = r2, right = r1; + + /* X0 of the intersection is right.x0, if this is inside R1, + otherwise there is no intersection. */ + if (right->left <= left->right) + { + result->left = right->left; + + /* The right end of the intersection is the minimum of the + the right ends of left and right. */ + result->right = min (left->right, right->right); + + /* Same game for Y. */ + if (r1->top < r2->top) + upper = r1, lower = r2; + else + upper = r2, lower = r1; + + /* The upper end of the intersection is lower.y0, if this is inside + of upper. Otherwise, there is no intersection. */ + if (lower->top <= upper->bottom) + { + result->top = lower->top; + + /* The lower end of the intersection is the minimum of the lower + ends of upper and lower. */ + result->bottom = min (lower->bottom, upper->bottom); + intersection_p = 1; + } + } + + return intersection_p; +} + + + + + +static void +frame_highlight (f) + struct frame *f; +{ + x_update_cursor (f, 1); +} + +static void +frame_unhighlight (f) + struct frame *f; +{ + x_update_cursor (f, 1); +} + +/* The focus has changed. Update the frames as necessary to reflect + the new situation. Note that we can't change the selected frame + here, because the Lisp code we are interrupting might become confused. + Each event gets marked with the frame in which it occurred, so the + Lisp code can tell when the switch took place by examining the events. */ + +static void +x_new_focus_frame (dpyinfo, frame) + struct x_display_info *dpyinfo; + struct frame *frame; +{ + struct frame *old_focus = dpyinfo->x_focus_frame; + + if (frame != dpyinfo->x_focus_frame) + { + /* Set this before calling other routines, so that they see + the correct value of x_focus_frame. */ + dpyinfo->x_focus_frame = frame; + + if (old_focus && old_focus->auto_lower) + x_lower_frame (old_focus); + +#if 0 + selected_frame = frame; + XSETFRAME (XWINDOW (selected_frame->selected_window)->frame, + selected_frame); + Fselect_window (selected_frame->selected_window); + choose_minibuf_frame (); +#endif /* ! 0 */ + + if (dpyinfo->x_focus_frame && dpyinfo->x_focus_frame->auto_raise) + pending_autoraise_frame = dpyinfo->x_focus_frame; + else + pending_autoraise_frame = 0; + } + + x_frame_rehighlight (dpyinfo); +} + +/* Handle an event saying the mouse has moved out of an Emacs frame. */ + +void +x_mouse_leave (dpyinfo) + struct x_display_info *dpyinfo; +{ + x_new_focus_frame (dpyinfo, dpyinfo->x_focus_event_frame); +} + +/* The focus has changed, or we have redirected a frame's focus to + another frame (this happens when a frame uses a surrogate + mini-buffer frame). Shift the highlight as appropriate. + + The FRAME argument doesn't necessarily have anything to do with which + frame is being highlighted or un-highlighted; we only use it to find + the appropriate X display info. */ + +static void +XTframe_rehighlight (frame) + struct frame *frame; +{ + x_frame_rehighlight (FRAME_X_DISPLAY_INFO (frame)); +} + +static void +x_frame_rehighlight (dpyinfo) + struct x_display_info *dpyinfo; +{ + struct frame *old_highlight = dpyinfo->x_highlight_frame; + + if (dpyinfo->x_focus_frame) + { + dpyinfo->x_highlight_frame + = ((GC_FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))) + ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame)) + : dpyinfo->x_focus_frame); + if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame)) + { + FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame) = Qnil; + dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame; + } + } + else + dpyinfo->x_highlight_frame = 0; + + if (dpyinfo->x_highlight_frame != old_highlight) + { + if (old_highlight) + frame_unhighlight (old_highlight); + if (dpyinfo->x_highlight_frame) + frame_highlight (dpyinfo->x_highlight_frame); + } +} + + + +/* Keyboard processing - modifier keys, vendor-specific keysyms, etc. */ + +#if 0 /* MAC_TODO */ +/* Initialize mode_switch_bit and modifier_meaning. */ +static void +x_find_modifier_meanings (dpyinfo) + struct x_display_info *dpyinfo; +{ + int min_code, max_code; + KeySym *syms; + int syms_per_code; + XModifierKeymap *mods; + + dpyinfo->meta_mod_mask = 0; + dpyinfo->shift_lock_mask = 0; + dpyinfo->alt_mod_mask = 0; + dpyinfo->super_mod_mask = 0; + dpyinfo->hyper_mod_mask = 0; + +#ifdef HAVE_X11R4 + XDisplayKeycodes (dpyinfo->display, &min_code, &max_code); +#else + min_code = dpyinfo->display->min_keycode; + max_code = dpyinfo->display->max_keycode; +#endif + + syms = XGetKeyboardMapping (dpyinfo->display, + min_code, max_code - min_code + 1, + &syms_per_code); + mods = XGetModifierMapping (dpyinfo->display); + + /* Scan the modifier table to see which modifier bits the Meta and + Alt keysyms are on. */ + { + int row, col; /* The row and column in the modifier table. */ + + for (row = 3; row < 8; row++) + for (col = 0; col < mods->max_keypermod; col++) + { + KeyCode code + = mods->modifiermap[(row * mods->max_keypermod) + col]; + + /* Zeroes are used for filler. Skip them. */ + if (code == 0) + continue; + + /* Are any of this keycode's keysyms a meta key? */ + { + int code_col; + + for (code_col = 0; code_col < syms_per_code; code_col++) + { + int sym = syms[((code - min_code) * syms_per_code) + code_col]; + + switch (sym) + { + case XK_Meta_L: + case XK_Meta_R: + dpyinfo->meta_mod_mask |= (1 << row); + break; + + case XK_Alt_L: + case XK_Alt_R: + dpyinfo->alt_mod_mask |= (1 << row); + break; + + case XK_Hyper_L: + case XK_Hyper_R: + dpyinfo->hyper_mod_mask |= (1 << row); + break; + + case XK_Super_L: + case XK_Super_R: + dpyinfo->super_mod_mask |= (1 << row); + break; + + case XK_Shift_Lock: + /* Ignore this if it's not on the lock modifier. */ + if ((1 << row) == LockMask) + dpyinfo->shift_lock_mask = LockMask; + break; + } + } + } + } + } + + /* If we couldn't find any meta keys, accept any alt keys as meta keys. */ + if (! dpyinfo->meta_mod_mask) + { + dpyinfo->meta_mod_mask = dpyinfo->alt_mod_mask; + dpyinfo->alt_mod_mask = 0; + } + + /* If some keys are both alt and meta, + make them just meta, not alt. */ + if (dpyinfo->alt_mod_mask & dpyinfo->meta_mod_mask) + { + dpyinfo->alt_mod_mask &= ~dpyinfo->meta_mod_mask; + } + + XFree ((char *) syms); + XFreeModifiermap (mods); +} + +#endif /* MAC_TODO */ + +/* Convert between the modifier bits X uses and the modifier bits + Emacs uses. */ + +static unsigned int +x_mac_to_emacs_modifiers (dpyinfo, state) + struct x_display_info *dpyinfo; + unsigned short state; +{ + return (((state & shiftKey) ? shift_modifier : 0) + | ((state & controlKey) ? ctrl_modifier : 0) + | ((state & cmdKey) ? meta_modifier : 0) + | ((state & optionKey) ? alt_modifier : 0)); +} + +#if 0 /* MAC_TODO */ +static unsigned short +x_emacs_to_x_modifiers (dpyinfo, state) + struct x_display_info *dpyinfo; + unsigned int state; +{ + return ( ((state & alt_modifier) ? dpyinfo->alt_mod_mask : 0) + | ((state & super_modifier) ? dpyinfo->super_mod_mask : 0) + | ((state & hyper_modifier) ? dpyinfo->hyper_mod_mask : 0) + | ((state & shift_modifier) ? ShiftMask : 0) + | ((state & ctrl_modifier) ? ControlMask : 0) + | ((state & meta_modifier) ? dpyinfo->meta_mod_mask : 0)); +} +#endif /* MAC_TODO */ + +/* Convert a keysym to its name. */ + +char * +x_get_keysym_name (keysym) + int keysym; +{ + char *value; + + BLOCK_INPUT; +#if 0 + value = XKeysymToString (keysym); +#else + value = 0; +#endif + UNBLOCK_INPUT; + + return value; +} + + + +/* Mouse clicks and mouse movement. Rah. */ + +/* Given a pixel position (PIX_X, PIX_Y) on frame F, return glyph + co-ordinates in (*X, *Y). Set *BOUNDS to the rectangle that the + glyph at X, Y occupies, if BOUNDS != 0. If NOCLIP is non-zero, do + not force the value into range. */ + +void +pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds, noclip) + FRAME_PTR f; + register int pix_x, pix_y; + register int *x, *y; + Rect *bounds; + int noclip; +{ + /* Support tty mode: if Vwindow_system is nil, behave correctly. */ + if (NILP (Vwindow_system)) + { + *x = pix_x; + *y = pix_y; + return; + } + + /* Arrange for the division in PIXEL_TO_CHAR_COL etc. to round down + even for negative values. */ + if (pix_x < 0) + pix_x -= FONT_WIDTH (FRAME_FONT (f)) - 1; + if (pix_y < 0) + pix_y -= (f)->output_data.mac->line_height - 1; + + pix_x = PIXEL_TO_CHAR_COL (f, pix_x); + pix_y = PIXEL_TO_CHAR_ROW (f, pix_y); + + if (bounds) + { + bounds->left = CHAR_TO_PIXEL_COL (f, pix_x); + bounds->top = CHAR_TO_PIXEL_ROW (f, pix_y); + bounds->right = bounds->left + FONT_WIDTH (FRAME_FONT (f)) - 1; + bounds->bottom = bounds->top + f->output_data.mac->line_height - 1; + } + + if (!noclip) + { + if (pix_x < 0) + pix_x = 0; + else if (pix_x > FRAME_WINDOW_WIDTH (f)) + pix_x = FRAME_WINDOW_WIDTH (f); + + if (pix_y < 0) + pix_y = 0; + else if (pix_y > f->height) + pix_y = f->height; + } + + *x = pix_x; + *y = pix_y; +} + + +/* Given HPOS/VPOS in the current matrix of W, return corresponding + frame-relative pixel positions in *FRAME_X and *FRAME_Y. If we + can't tell the positions because W's display is not up to date, + return 0. */ + +int +glyph_to_pixel_coords (w, hpos, vpos, frame_x, frame_y) + struct window *w; + int hpos, vpos; + int *frame_x, *frame_y; +{ + int success_p; + + xassert (hpos >= 0 && hpos < w->current_matrix->matrix_w); + xassert (vpos >= 0 && vpos < w->current_matrix->matrix_h); + + if (display_completed) + { + struct glyph_row *row = MATRIX_ROW (w->current_matrix, vpos); + struct glyph *glyph = row->glyphs[TEXT_AREA]; + struct glyph *end = glyph + min (hpos, row->used[TEXT_AREA]); + + *frame_y = row->y; + *frame_x = row->x; + while (glyph < end) + { + *frame_x += glyph->pixel_width; + ++glyph; + } + + success_p = 1; + } + else + { + *frame_y = *frame_x = 0; + success_p = 0; + } + + *frame_y = WINDOW_TO_FRAME_PIXEL_Y (w, *frame_y); + *frame_x = WINDOW_TO_FRAME_PIXEL_X (w, *frame_x); + return success_p; +} + + +/* Prepare a mouse-event in *RESULT for placement in the input queue. + + If the event is a button press, then note that we have grabbed + the mouse. */ + +static Lisp_Object +construct_mouse_click (result, event, f) + struct input_event *result; + EventRecord *event; + struct frame *f; +{ + Point mouseLoc; + + result->kind = mouse_click; + result->code = 0; /* only one mouse button */ + result->timestamp = event->when; + result->modifiers = event->what == mouseDown ? down_modifier : up_modifier; + + mouseLoc = event->where; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (FRAME_MAC_WINDOW (f))); +#else + SetPort (FRAME_MAC_WINDOW (f)); +#endif + + GlobalToLocal (&mouseLoc); + XSETINT (result->x, mouseLoc.h); + XSETINT (result->y, mouseLoc.v); + + XSETFRAME (result->frame_or_window, f); + + result->arg = Qnil; + return Qnil; +} + + +/* Function to report a mouse movement to the mainstream Emacs code. + The input handler calls this. + + We have received a mouse movement event, which is given in *event. + If the mouse is over a different glyph than it was last time, tell + the mainstream emacs code by setting mouse_moved. If not, ask for + another motion event, so we can check again the next time it moves. */ + +static Point last_mouse_motion_position; +static Lisp_Object last_mouse_motion_frame; + +static void +note_mouse_movement (frame, pos) + FRAME_PTR frame; + Point *pos; +{ +#if TARGET_API_MAC_CARBON + Rect r; +#endif + + last_mouse_movement_time = TickCount () * (1000 / 60); /* to milliseconds */ + last_mouse_motion_position = *pos; + XSETFRAME (last_mouse_motion_frame, frame); + +#if TARGET_API_MAC_CARBON + if (!PtInRect (*pos, GetWindowPortBounds (FRAME_MAC_WINDOW (frame), &r))) +#else + if (!PtInRect (*pos, &FRAME_MAC_WINDOW (frame)->portRect)) +#endif + { + frame->mouse_moved = 1; + last_mouse_scroll_bar = Qnil; + note_mouse_highlight (frame, -1, -1); + } + /* Has the mouse moved off the glyph it was on at the last sighting? */ + else if (pos->h < last_mouse_glyph.left + || pos->h >= last_mouse_glyph.right + || pos->v < last_mouse_glyph.top + || pos->v >= last_mouse_glyph.bottom) + { + frame->mouse_moved = 1; + last_mouse_scroll_bar = Qnil; + note_mouse_highlight (frame, pos->h, pos->v); + } +} + +/* This is used for debugging, to turn off note_mouse_highlight. */ + +int disable_mouse_highlight; + + + +/************************************************************************ + Mouse Face + ************************************************************************/ + +/* Find the glyph under window-relative coordinates X/Y in window W. + Consider only glyphs from buffer text, i.e. no glyphs from overlay + strings. Return in *HPOS and *VPOS the row and column number of + the glyph found. Return in *AREA the glyph area containing X. + Value is a pointer to the glyph found or null if X/Y is not on + text, or we can't tell because W's current matrix is not up to + date. */ + +static struct glyph * +x_y_to_hpos_vpos (w, x, y, hpos, vpos, area, buffer_only_p) + struct window *w; + int x, y; + int *hpos, *vpos, *area; + int buffer_only_p; +{ + struct glyph *glyph, *end; + struct glyph_row *row = NULL; + int x0, i, left_area_width; + + /* Find row containing Y. Give up if some row is not enabled. */ + for (i = 0; i < w->current_matrix->nrows; ++i) + { + row = MATRIX_ROW (w->current_matrix, i); + if (!row->enabled_p) + return NULL; + if (y >= row->y && y < MATRIX_ROW_BOTTOM_Y (row)) + break; + } + + *vpos = i; + *hpos = 0; + + /* Give up if Y is not in the window. */ + if (i == w->current_matrix->nrows) + return NULL; + + /* Get the glyph area containing X. */ + if (w->pseudo_window_p) + { + *area = TEXT_AREA; + x0 = 0; + } + else + { + left_area_width = window_box_width (w, LEFT_MARGIN_AREA); + if (x < left_area_width) + { + *area = LEFT_MARGIN_AREA; + x0 = 0; + } + else if (x < left_area_width + window_box_width (w, TEXT_AREA)) + { + *area = TEXT_AREA; + x0 = row->x + left_area_width; + } + else + { + *area = RIGHT_MARGIN_AREA; + x0 = left_area_width + window_box_width (w, TEXT_AREA); + } + } + + /* Find glyph containing X. */ + glyph = row->glyphs[*area]; + end = glyph + row->used[*area]; + while (glyph < end) + { + if (x < x0 + glyph->pixel_width) + { + if (w->pseudo_window_p) + break; + else if (!buffer_only_p || BUFFERP (glyph->object)) + break; + } + + x0 += glyph->pixel_width; + ++glyph; + } + + if (glyph == end) + return NULL; + + *hpos = glyph - row->glyphs[*area]; + return glyph; +} + + +/* Convert frame-relative x/y to coordinates relative to window W. + Takes pseudo-windows into account. */ + +static void +frame_to_window_pixel_xy (w, x, y) + struct window *w; + int *x, *y; +{ + if (w->pseudo_window_p) + { + /* A pseudo-window is always full-width, and starts at the + left edge of the frame, plus a frame border. */ + struct frame *f = XFRAME (w->frame); + *x -= FRAME_INTERNAL_BORDER_WIDTH_SAFE (f); + *y = FRAME_TO_WINDOW_PIXEL_Y (w, *y); + } + else + { + *x = FRAME_TO_WINDOW_PIXEL_X (w, *x); + *y = FRAME_TO_WINDOW_PIXEL_Y (w, *y); + } +} + + +/* Take proper action when mouse has moved to the mode or header line of + window W, x-position X. MODE_LINE_P non-zero means mouse is on the + mode line. X is relative to the start of the text display area of + W, so the width of fringes and scroll bars must be subtracted + to get a position relative to the start of the mode line. */ + +static void +note_mode_line_highlight (w, x, mode_line_p) + struct window *w; + int x, mode_line_p; +{ + struct frame *f = XFRAME (w->frame); + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + struct Cursor *cursor = dpyinfo->vertical_scroll_bar_cursor; + struct glyph_row *row; + + if (mode_line_p) + row = MATRIX_MODE_LINE_ROW (w->current_matrix); + else + row = MATRIX_HEADER_LINE_ROW (w->current_matrix); + + if (row->enabled_p) + { + struct glyph *glyph, *end; + Lisp_Object help, map; + int x0; + + /* Find the glyph under X. */ + glyph = row->glyphs[TEXT_AREA]; + end = glyph + row->used[TEXT_AREA]; + x0 = - (FRAME_LEFT_SCROLL_BAR_WIDTH (f) * CANON_X_UNIT (f) + + FRAME_X_LEFT_FRINGE_WIDTH (f)); + + while (glyph < end + && x >= x0 + glyph->pixel_width) + { + x0 += glyph->pixel_width; + ++glyph; + } + + if (glyph < end + && STRINGP (glyph->object) + && XSTRING (glyph->object)->intervals + && glyph->charpos >= 0 + && glyph->charpos < XSTRING (glyph->object)->size) + { + /* If we're on a string with `help-echo' text property, + arrange for the help to be displayed. This is done by + setting the global variable help_echo to the help string. */ + help = Fget_text_property (make_number (glyph->charpos), + Qhelp_echo, glyph->object); + if (!NILP (help)) + { + help_echo = help; + XSETWINDOW (help_echo_window, w); + help_echo_object = glyph->object; + help_echo_pos = glyph->charpos; + } + + /* Change the mouse pointer according to what is under X/Y. */ + map = Fget_text_property (make_number (glyph->charpos), + Qlocal_map, glyph->object); + if (KEYMAPP (map)) + cursor = f->output_data.mac->nontext_cursor; + else + { + map = Fget_text_property (make_number (glyph->charpos), + Qkeymap, glyph->object); + if (KEYMAPP (map)) + cursor = f->output_data.mac->nontext_cursor; + } + } + } + +#if 0 /* MAC_TODO: mouse cursor */ + XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), cursor); +#endif +} + + +/* Take proper action when the mouse has moved to position X, Y on + frame F as regards highlighting characters that have mouse-face + properties. Also de-highlighting chars where the mouse was before. + X and Y can be negative or out of range. */ + +static void +note_mouse_highlight (f, x, y) + struct frame *f; + int x, y; +{ + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + int portion; + Lisp_Object window; + struct window *w; + struct buffer *b; + +#if 0 + /* When a menu is active, don't highlight because this looks odd. */ + if (popup_activated ()) + return; +#endif + + if (NILP (Vmouse_highlight) + || !f->glyphs_initialized_p) + return; + + dpyinfo->mouse_face_mouse_x = x; + dpyinfo->mouse_face_mouse_y = y; + dpyinfo->mouse_face_mouse_frame = f; + + if (dpyinfo->mouse_face_defer) + return; + + if (gc_in_progress) + { + dpyinfo->mouse_face_deferred_gc = 1; + return; + } + + /* Which window is that in? */ + window = window_from_coordinates (f, x, y, &portion, 1); + + /* If we were displaying active text in another window, clear that. */ + if (! EQ (window, dpyinfo->mouse_face_window)) + clear_mouse_face (dpyinfo); + + /* Not on a window -> return. */ + if (!WINDOWP (window)) + return; + + /* Reset help_echo. It will get recomputed below. */ + help_echo = Qnil; + + /* Convert to window-relative pixel coordinates. */ + w = XWINDOW (window); + frame_to_window_pixel_xy (w, &x, &y); + + /* Handle tool-bar window differently since it doesn't display a + buffer. */ + if (EQ (window, f->tool_bar_window)) + { + note_tool_bar_highlight (f, x, y); + return; + } + + /* Mouse is on the mode or header line? */ + if (portion == 1 || portion == 3) + { + note_mode_line_highlight (w, x, portion == 1); + return; + } +#if 0 /* TODO: mouse cursor */ + if (portion == 2) + cursor = f->output_data.x->horizontal_drag_cursor; + else + cursor = f->output_data.x->text_cursor; +#endif + /* Are we in a window whose display is up to date? + And verify the buffer's text has not changed. */ + b = XBUFFER (w->buffer); + if (/* Within text portion of the window. */ + portion == 0 + && EQ (w->window_end_valid, w->buffer) + && XFASTINT (w->last_modified) == BUF_MODIFF (b) + && XFASTINT (w->last_overlay_modified) == BUF_OVERLAY_MODIFF (b)) + { + int hpos, vpos, pos, i, area; + struct glyph *glyph; + Lisp_Object object; + Lisp_Object mouse_face = Qnil, overlay = Qnil, position; + Lisp_Object *overlay_vec = NULL; + int len, noverlays; + struct buffer *obuf; + int obegv, ozv, same_region; + + /* Find the glyph under X/Y. */ + glyph = x_y_to_hpos_vpos (w, x, y, &hpos, &vpos, &area, 0); + + /* Clear mouse face if X/Y not over text. */ + if (glyph == NULL + || area != TEXT_AREA + || !MATRIX_ROW (w->current_matrix, vpos)->displays_text_p) + { + clear_mouse_face (dpyinfo); + /* TODO: mouse cursor */ + goto set_cursor; + } + + pos = glyph->charpos; + object = glyph->object; + if (!STRINGP (object) && !BUFFERP (object)) + goto set_cursor; + + /* If we get an out-of-range value, return now; avoid an error. */ + if (BUFFERP (object) && pos > BUF_Z (b)) + goto set_cursor; + + /* Make the window's buffer temporarily current for + overlays_at and compute_char_face. */ + obuf = current_buffer; + current_buffer = b; + obegv = BEGV; + ozv = ZV; + BEGV = BEG; + ZV = Z; + + /* Is this char mouse-active or does it have help-echo? */ + position = make_number (pos); + + if (BUFFERP (object)) + { + /* Put all the overlays we want in a vector in overlay_vec. + Store the length in len. If there are more than 10, make + enough space for all, and try again. */ + len = 10; + overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); + noverlays = overlays_at (pos, 0, &overlay_vec, &len, NULL, NULL, 0); + if (noverlays > len) + { + len = noverlays; + overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); + noverlays = overlays_at (pos, 0, &overlay_vec, &len, NULL, NULL,0); + } + + /* Sort overlays into increasing priority order. */ + noverlays = sort_overlays (overlay_vec, noverlays, w); + } + else + noverlays = 0; + + same_region = (EQ (window, dpyinfo->mouse_face_window) + && vpos >= dpyinfo->mouse_face_beg_row + && vpos <= dpyinfo->mouse_face_end_row + && (vpos > dpyinfo->mouse_face_beg_row + || hpos >= dpyinfo->mouse_face_beg_col) + && (vpos < dpyinfo->mouse_face_end_row + || hpos < dpyinfo->mouse_face_end_col + || dpyinfo->mouse_face_past_end)); + + /* TODO: if (same_region) + mouse cursor */ + + /* Check mouse-face highlighting. */ + if (! same_region + /* If there exists an overlay with mouse-face overlapping + the one we are currently highlighting, we have to + check if we enter the overlapping overlay, and then + highlight that. */ + || (OVERLAYP (dpyinfo->mouse_face_overlay) + && mouse_face_overlay_overlaps (dpyinfo->mouse_face_overlay))) + { + /* Find the highest priority overlay that has a mouse-face + property. */ + overlay = Qnil; + for (i = noverlays - 1; i >= 0 && NILP (overlay); --i) + { + mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); + if (!NILP (mouse_face)) + overlay = overlay_vec[i]; + } + + /* If we're actually highlighting the same overlay as + before, there's no need to do that again. */ + if (!NILP (overlay) + && EQ (overlay, dpyinfo->mouse_face_overlay)) + goto check_help_echo; + + dpyinfo->mouse_face_overlay = overlay; + + /* Clear the display of the old active region, if any. */ + clear_mouse_face (dpyinfo); + /* TODO: mouse cursor changes. */ + + /* If no overlay applies, get a text property. */ + if (NILP (overlay)) + mouse_face = Fget_text_property (position, Qmouse_face, object); + + /* Handle the overlay case. */ + if (!NILP (overlay)) + { + /* Find the range of text around this char that + should be active. */ + Lisp_Object before, after; + int ignore; + + before = Foverlay_start (overlay); + after = Foverlay_end (overlay); + /* Record this as the current active region. */ + fast_find_position (w, XFASTINT (before), + &dpyinfo->mouse_face_beg_col, + &dpyinfo->mouse_face_beg_row, + &dpyinfo->mouse_face_beg_x, + &dpyinfo->mouse_face_beg_y, Qnil); + + dpyinfo->mouse_face_past_end + = !fast_find_position (w, XFASTINT (after), + &dpyinfo->mouse_face_end_col, + &dpyinfo->mouse_face_end_row, + &dpyinfo->mouse_face_end_x, + &dpyinfo->mouse_face_end_y, Qnil); + dpyinfo->mouse_face_window = window; + + dpyinfo->mouse_face_face_id + = face_at_buffer_position (w, pos, 0, 0, + &ignore, pos + 1, 1); + + /* Display it as active. */ + show_mouse_face (dpyinfo, DRAW_MOUSE_FACE); + /* TODO: mouse cursor changes. */ + } + /* Handle the text property case. */ + else if (! NILP (mouse_face) && BUFFERP (object)) + { + /* Find the range of text around this char that + should be active. */ + Lisp_Object before, after, beginning, end; + int ignore; + + beginning = Fmarker_position (w->start); + end = make_number (BUF_Z (XBUFFER (object)) + - XFASTINT (w->window_end_pos)); + before + = Fprevious_single_property_change (make_number (pos + 1), + Qmouse_face, + object, beginning); + after + = Fnext_single_property_change (position, Qmouse_face, + object, end); + + /* Record this as the current active region. */ + fast_find_position (w, XFASTINT (before), + &dpyinfo->mouse_face_beg_col, + &dpyinfo->mouse_face_beg_row, + &dpyinfo->mouse_face_beg_x, + &dpyinfo->mouse_face_beg_y, Qnil); + dpyinfo->mouse_face_past_end + = !fast_find_position (w, XFASTINT (after), + &dpyinfo->mouse_face_end_col, + &dpyinfo->mouse_face_end_row, + &dpyinfo->mouse_face_end_x, + &dpyinfo->mouse_face_end_y, Qnil); + dpyinfo->mouse_face_window = window; + + if (BUFFERP (object)) + dpyinfo->mouse_face_face_id + = face_at_buffer_position (w, pos, 0, 0, + &ignore, pos + 1, 1); + + /* Display it as active. */ + show_mouse_face (dpyinfo, DRAW_MOUSE_FACE); + /* TODO: mouse cursor changes. */ + } + else if (!NILP (mouse_face) && STRINGP (object)) + { + Lisp_Object b, e; + int ignore; + + b = Fprevious_single_property_change (make_number (pos + 1), + Qmouse_face, + object, Qnil); + e = Fnext_single_property_change (position, Qmouse_face, + object, Qnil); + if (NILP (b)) + b = make_number (0); + if (NILP (e)) + e = make_number (XSTRING (object)->size - 1); + fast_find_string_pos (w, XINT (b), object, + &dpyinfo->mouse_face_beg_col, + &dpyinfo->mouse_face_beg_row, + &dpyinfo->mouse_face_beg_x, + &dpyinfo->mouse_face_beg_y, 0); + fast_find_string_pos (w, XINT (e), object, + &dpyinfo->mouse_face_end_col, + &dpyinfo->mouse_face_end_row, + &dpyinfo->mouse_face_end_x, + &dpyinfo->mouse_face_end_y, 1); + dpyinfo->mouse_face_past_end = 0; + dpyinfo->mouse_face_window = window; + dpyinfo->mouse_face_face_id + = face_at_string_position (w, object, pos, 0, 0, 0, &ignore, + glyph->face_id, 1); + show_mouse_face (dpyinfo, DRAW_MOUSE_FACE); + /* TODO: mouse cursor changes. */ + } + else if (STRINGP (object) && NILP (mouse_face)) + { + /* A string which doesn't have mouse-face, but + the text ``under'' it might have. */ + struct glyph_row *r = MATRIX_ROW (w->current_matrix, vpos); + int start = MATRIX_ROW_START_CHARPOS (r); + + pos = string_buffer_position (w, object, start); + if (pos > 0) + mouse_face = get_char_property_and_overlay (make_number (pos), + Qmouse_face, + w->buffer, + &overlay); + if (!NILP (mouse_face) && !NILP (overlay)) + { + Lisp_Object before = Foverlay_start (overlay); + Lisp_Object after = Foverlay_end (overlay); + int ignore; + + /* Note that we might not be able to find position + BEFORE in the glyph matrix if the overlay is + entirely covered by a `display' property. In + this case, we overshoot. So let's stop in + the glyph matrix before glyphs for OBJECT. */ + fast_find_position (w, XFASTINT (before), + &dpyinfo->mouse_face_beg_col, + &dpyinfo->mouse_face_beg_row, + &dpyinfo->mouse_face_beg_x, + &dpyinfo->mouse_face_beg_y, + object); + + dpyinfo->mouse_face_past_end + = !fast_find_position (w, XFASTINT (after), + &dpyinfo->mouse_face_end_col, + &dpyinfo->mouse_face_end_row, + &dpyinfo->mouse_face_end_x, + &dpyinfo->mouse_face_end_y, + Qnil); + dpyinfo->mouse_face_window = window; + dpyinfo->mouse_face_face_id + = face_at_buffer_position (w, pos, 0, 0, + &ignore, pos + 1, 1); + + /* Display it as active. */ + show_mouse_face (dpyinfo, DRAW_MOUSE_FACE); + /* TODO: mouse cursor changes. */ + } + } + } + + check_help_echo: + + /* Look for a `help-echo' property. */ + { + Lisp_Object help, overlay; + + /* Check overlays first. */ + help = overlay = Qnil; + for (i = noverlays - 1; i >= 0 && NILP (help); --i) + { + overlay = overlay_vec[i]; + help = Foverlay_get (overlay, Qhelp_echo); + } + + if (!NILP (help)) + { + help_echo = help; + help_echo_window = window; + help_echo_object = overlay; + help_echo_pos = pos; + } + else + { + Lisp_Object object = glyph->object; + int charpos = glyph->charpos; + + /* Try text properties. */ + if (STRINGP (object) + && charpos >= 0 + && charpos < XSTRING (object)->size) + { + help = Fget_text_property (make_number (charpos), + Qhelp_echo, object); + if (NILP (help)) + { + /* If the string itself doesn't specify a help-echo, + see if the buffer text ``under'' it does. */ + struct glyph_row *r + = MATRIX_ROW (w->current_matrix, vpos); + int start = MATRIX_ROW_START_CHARPOS (r); + int pos = string_buffer_position (w, object, start); + if (pos > 0) + { + help = Fget_char_property (make_number (pos), + Qhelp_echo, w->buffer); + if (!NILP (help)) + { + charpos = pos; + object = w->buffer; + } + } + } + } + else if (BUFFERP (object) + && charpos >= BEGV + && charpos < ZV) + help = Fget_text_property (make_number (charpos), Qhelp_echo, + object); + + if (!NILP (help)) + { + help_echo = help; + help_echo_window = window; + help_echo_object = object; + help_echo_pos = charpos; + } + } + } + + BEGV = obegv; + ZV = ozv; + current_buffer = obuf; + } + + set_cursor: + /* TODO: mouse cursor changes. */ + ; +} + +static void +redo_mouse_highlight () +{ + if (!NILP (last_mouse_motion_frame) + && FRAME_LIVE_P (XFRAME (last_mouse_motion_frame))) + note_mouse_highlight (XFRAME (last_mouse_motion_frame), + last_mouse_motion_position.h, + last_mouse_motion_position.v); +} + + + +/*********************************************************************** + Tool-bars + ***********************************************************************/ + +static int x_tool_bar_item P_ ((struct frame *, int, int, + struct glyph **, int *, int *, int *)); + +/* Tool-bar item index of the item on which a mouse button was pressed + or -1. */ + +static int last_tool_bar_item; + + +/* Get information about the tool-bar item at position X/Y on frame F. + Return in *GLYPH a pointer to the glyph of the tool-bar item in + the current matrix of the tool-bar window of F, or NULL if not + on a tool-bar item. Return in *PROP_IDX the index of the tool-bar + item in F->current_tool_bar_items. Value is + + -1 if X/Y is not on a tool-bar item + 0 if X/Y is on the same item that was highlighted before. + 1 otherwise. */ + +static int +x_tool_bar_item (f, x, y, glyph, hpos, vpos, prop_idx) + struct frame *f; + int x, y; + struct glyph **glyph; + int *hpos, *vpos, *prop_idx; +{ + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + struct window *w = XWINDOW (f->tool_bar_window); + int area; + + /* Find the glyph under X/Y. */ + *glyph = x_y_to_hpos_vpos (w, x, y, hpos, vpos, &area, 0); + if (*glyph == NULL) + return -1; + + /* Get the start of this tool-bar item's properties in + f->current_tool_bar_items. */ + if (!tool_bar_item_info (f, *glyph, prop_idx)) + return -1; + + /* Is mouse on the highlighted item? */ + if (EQ (f->tool_bar_window, dpyinfo->mouse_face_window) + && *vpos >= dpyinfo->mouse_face_beg_row + && *vpos <= dpyinfo->mouse_face_end_row + && (*vpos > dpyinfo->mouse_face_beg_row + || *hpos >= dpyinfo->mouse_face_beg_col) + && (*vpos < dpyinfo->mouse_face_end_row + || *hpos < dpyinfo->mouse_face_end_col + || dpyinfo->mouse_face_past_end)) + return 0; + + return 1; +} + + +/* Handle mouse button event on the tool-bar of frame F, at + frame-relative coordinates X/Y. EVENT_TYPE is either ButtionPress + or ButtonRelase. */ + +static void +x_handle_tool_bar_click (f, button_event) + struct frame *f; + EventRecord *button_event; +{ + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + struct window *w = XWINDOW (f->tool_bar_window); + int hpos, vpos, prop_idx; + struct glyph *glyph; + Lisp_Object enabled_p; + int x = button_event->where.h; + int y = button_event->where.v; + + /* If not on the highlighted tool-bar item, return. */ + frame_to_window_pixel_xy (w, &x, &y); + if (x_tool_bar_item (f, x, y, &glyph, &hpos, &vpos, &prop_idx) != 0) + return; + + /* If item is disabled, do nothing. */ + enabled_p = AREF (f->tool_bar_items, prop_idx + TOOL_BAR_ITEM_ENABLED_P); + if (NILP (enabled_p)) + return; + + if (button_event->what == mouseDown) + { + /* Show item in pressed state. */ + show_mouse_face (dpyinfo, DRAW_IMAGE_SUNKEN); + dpyinfo->mouse_face_image_state = DRAW_IMAGE_SUNKEN; + last_tool_bar_item = prop_idx; + } + else + { + Lisp_Object key, frame; + struct input_event event; + + /* Show item in released state. */ + show_mouse_face (dpyinfo, DRAW_IMAGE_RAISED); + dpyinfo->mouse_face_image_state = DRAW_IMAGE_RAISED; + + key = AREF (f->tool_bar_items, prop_idx + TOOL_BAR_ITEM_KEY); + + XSETFRAME (frame, f); + event.kind = TOOL_BAR_EVENT; + event.frame_or_window = frame; + event.arg = frame; + kbd_buffer_store_event (&event); + + event.kind = TOOL_BAR_EVENT; + event.frame_or_window = frame; + event.arg = key; + event.modifiers = x_mac_to_emacs_modifiers (FRAME_X_DISPLAY_INFO (f), + button_event->modifiers); + kbd_buffer_store_event (&event); + last_tool_bar_item = -1; + } +} + + +/* Possibly highlight a tool-bar item on frame F when mouse moves to + tool-bar window-relative coordinates X/Y. Called from + note_mouse_highlight. */ + +static void +note_tool_bar_highlight (f, x, y) + struct frame *f; + int x, y; +{ + Lisp_Object window = f->tool_bar_window; + struct window *w = XWINDOW (window); + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + int hpos, vpos; + struct glyph *glyph; + struct glyph_row *row; + int i; + Lisp_Object enabled_p; + int prop_idx; + enum draw_glyphs_face draw = DRAW_IMAGE_RAISED; + int mouse_down_p, rc; + + /* Function note_mouse_highlight is called with negative x(y + values when mouse moves outside of the frame. */ + if (x <= 0 || y <= 0) + { + clear_mouse_face (dpyinfo); + return; + } + + rc = x_tool_bar_item (f, x, y, &glyph, &hpos, &vpos, &prop_idx); + if (rc < 0) + { + /* Not on tool-bar item. */ + clear_mouse_face (dpyinfo); + return; + } + else if (rc == 0) + /* On same tool-bar item as before. */ + goto set_help_echo; + + clear_mouse_face (dpyinfo); + + /* Mouse is down, but on different tool-bar item? */ + mouse_down_p = (dpyinfo->grabbed + && f == last_mouse_frame + && FRAME_LIVE_P (f)); + if (mouse_down_p + && last_tool_bar_item != prop_idx) + return; + + dpyinfo->mouse_face_image_state = DRAW_NORMAL_TEXT; + draw = mouse_down_p ? DRAW_IMAGE_SUNKEN : DRAW_IMAGE_RAISED; + + /* If tool-bar item is not enabled, don't highlight it. */ + enabled_p = AREF (f->tool_bar_items, prop_idx + TOOL_BAR_ITEM_ENABLED_P); + if (!NILP (enabled_p)) + { + /* Compute the x-position of the glyph. In front and past the + image is a space. We include this is the highlighted area. */ + row = MATRIX_ROW (w->current_matrix, vpos); + for (i = x = 0; i < hpos; ++i) + x += row->glyphs[TEXT_AREA][i].pixel_width; + + /* Record this as the current active region. */ + dpyinfo->mouse_face_beg_col = hpos; + dpyinfo->mouse_face_beg_row = vpos; + dpyinfo->mouse_face_beg_x = x; + dpyinfo->mouse_face_beg_y = row->y; + dpyinfo->mouse_face_past_end = 0; + + dpyinfo->mouse_face_end_col = hpos + 1; + dpyinfo->mouse_face_end_row = vpos; + dpyinfo->mouse_face_end_x = x + glyph->pixel_width; + dpyinfo->mouse_face_end_y = row->y; + dpyinfo->mouse_face_window = window; + dpyinfo->mouse_face_face_id = TOOL_BAR_FACE_ID; + + /* Display it as active. */ + show_mouse_face (dpyinfo, draw); + dpyinfo->mouse_face_image_state = draw; + } + + set_help_echo: + + /* Set help_echo to a help string.to display for this tool-bar item. + XTread_socket does the rest. */ + help_echo_object = help_echo_window = Qnil; + help_echo_pos = -1; + help_echo = AREF (f->tool_bar_items, prop_idx + TOOL_BAR_ITEM_HELP); + if (NILP (help_echo)) + help_echo = AREF (f->tool_bar_items, prop_idx + TOOL_BAR_ITEM_CAPTION); +} + + + +/* Find the glyph matrix position of buffer position CHARPOS in window + *W. HPOS, *VPOS, *X, and *Y are set to the positions found. W's + current glyphs must be up to date. If CHARPOS is above window + start return (0, 0, 0, 0). If CHARPOS is after end of W, return end + of last line in W. In the row containing CHARPOS, stop before glyphs + having STOP as object. */ + +#if 0 /* This is a version of fast_find_position that's more correct + in the presence of hscrolling, for example. I didn't install + it right away because the problem fixed is minor, it failed + in 20.x as well, and I think it's too risky to install + so near the release of 21.1. 2001-09-25 gerd. */ + +static int +fast_find_position (w, charpos, hpos, vpos, x, y, stop) + struct window *w; + int charpos; + int *hpos, *vpos, *x, *y; + Lisp_Object stop; +{ + struct glyph_row *row, *first; + struct glyph *glyph, *end; + int i, past_end = 0; + + first = MATRIX_FIRST_TEXT_ROW (w->current_matrix); + row = row_containing_pos (w, charpos, first, NULL, 0); + if (row == NULL) + { + if (charpos < MATRIX_ROW_START_CHARPOS (first)) + { + *x = *y = *hpos = *vpos = 0; + return 0; + } + else + { + row = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos)); + past_end = 1; + } + } + + *x = row->x; + *y = row->y; + *vpos = MATRIX_ROW_VPOS (row, w->current_matrix); + + glyph = row->glyphs[TEXT_AREA]; + end = glyph + row->used[TEXT_AREA]; + + /* Skip over glyphs not having an object at the start of the row. + These are special glyphs like truncation marks on terminal + frames. */ + if (row->displays_text_p) + while (glyph < end + && INTEGERP (glyph->object) + && !EQ (stop, glyph->object) + && glyph->charpos < 0) + { + *x += glyph->pixel_width; + ++glyph; + } + + while (glyph < end + && !INTEGERP (glyph->object) + && !EQ (stop, glyph->object) + && (!BUFFERP (glyph->object) + || glyph->charpos < charpos)) + { + *x += glyph->pixel_width; + ++glyph; + } + + *hpos = glyph - row->glyphs[TEXT_AREA]; + return past_end; +} + +#else /* not 0 */ + +static int +fast_find_position (w, pos, hpos, vpos, x, y, stop) + struct window *w; + int pos; + int *hpos, *vpos, *x, *y; + Lisp_Object stop; +{ + int i; + int lastcol; + int maybe_next_line_p = 0; + int line_start_position; + int yb = window_text_bottom_y (w); + struct glyph_row *row, *best_row; + int row_vpos, best_row_vpos; + int current_x; + + row = best_row = MATRIX_FIRST_TEXT_ROW (w->current_matrix); + row_vpos = best_row_vpos = MATRIX_ROW_VPOS (row, w->current_matrix); + + while (row->y < yb) + { + if (row->used[TEXT_AREA]) + line_start_position = row->glyphs[TEXT_AREA]->charpos; + else + line_start_position = 0; + + if (line_start_position > pos) + break; + /* If the position sought is the end of the buffer, + don't include the blank lines at the bottom of the window. */ + else if (line_start_position == pos + && pos == BUF_ZV (XBUFFER (w->buffer))) + { + maybe_next_line_p = 1; + break; + } + else if (line_start_position > 0) + { + best_row = row; + best_row_vpos = row_vpos; + } + + if (row->y + row->height >= yb) + break; + + ++row; + ++row_vpos; + } + + /* Find the right column within BEST_ROW. */ + lastcol = 0; + current_x = best_row->x; + for (i = 0; i < best_row->used[TEXT_AREA]; i++) + { + struct glyph *glyph = best_row->glyphs[TEXT_AREA] + i; + int charpos = glyph->charpos; + + if (BUFFERP (glyph->object)) + { + if (charpos == pos) + { + *hpos = i; + *vpos = best_row_vpos; + *x = current_x; + *y = best_row->y; + return 1; + } + else if (charpos > pos) + break; + } + else if (EQ (glyph->object, stop)) + break; + + if (charpos > 0) + lastcol = i; + current_x += glyph->pixel_width; + } + + /* If we're looking for the end of the buffer, + and we didn't find it in the line we scanned, + use the start of the following line. */ + if (maybe_next_line_p) + { + ++best_row; + ++best_row_vpos; + lastcol = 0; + current_x = best_row->x; + } + + *vpos = best_row_vpos; + *hpos = lastcol + 1; + *x = current_x; + *y = best_row->y; + return 0; +} + +#endif /* not 0 */ + + +/* Find the position of the glyph for position POS in OBJECT in + window W's current matrix, and return in *X/*Y the pixel + coordinates, and return in *HPOS/*VPOS the column/row of the glyph. + + RIGHT_P non-zero means return the position of the right edge of the + glyph, RIGHT_P zero means return the left edge position. + + If no glyph for POS exists in the matrix, return the position of + the glyph with the next smaller position that is in the matrix, if + RIGHT_P is zero. If RIGHT_P is non-zero, and no glyph for POS + exists in the matrix, return the position of the glyph with the + next larger position in OBJECT. + + Value is non-zero if a glyph was found. */ + +static int +fast_find_string_pos (w, pos, object, hpos, vpos, x, y, right_p) + struct window *w; + int pos; + Lisp_Object object; + int *hpos, *vpos, *x, *y; + int right_p; +{ + int yb = window_text_bottom_y (w); + struct glyph_row *r; + struct glyph *best_glyph = NULL; + struct glyph_row *best_row = NULL; + int best_x = 0; + + for (r = MATRIX_FIRST_TEXT_ROW (w->current_matrix); + r->enabled_p && r->y < yb; + ++r) + { + struct glyph *g = r->glyphs[TEXT_AREA]; + struct glyph *e = g + r->used[TEXT_AREA]; + int gx; + + for (gx = r->x; g < e; gx += g->pixel_width, ++g) + if (EQ (g->object, object)) + { + if (g->charpos == pos) + { + best_glyph = g; + best_x = gx; + best_row = r; + goto found; + } + else if (best_glyph == NULL + || ((abs (g->charpos - pos) + < abs (best_glyph->charpos - pos)) + && (right_p + ? g->charpos < pos + : g->charpos > pos))) + { + best_glyph = g; + best_x = gx; + best_row = r; + } + } + } + + found: + + if (best_glyph) + { + *x = best_x; + *hpos = best_glyph - best_row->glyphs[TEXT_AREA]; + + if (right_p) + { + *x += best_glyph->pixel_width; + ++*hpos; + } + + *y = best_row->y; + *vpos = best_row - w->current_matrix->rows; + } + + return best_glyph != NULL; +} + + +/* Display the active region described by mouse_face_* + in its mouse-face if HL > 0, in its normal face if HL = 0. */ + +static void +show_mouse_face (dpyinfo, draw) + struct mac_display_info *dpyinfo; + enum draw_glyphs_face draw; +{ + struct window *w = XWINDOW (dpyinfo->mouse_face_window); + struct frame *f = XFRAME (WINDOW_FRAME (w)); + + if (/* If window is in the process of being destroyed, don't bother + to do anything. */ + w->current_matrix != NULL + /* Don't update mouse highlight if hidden */ + && (draw != DRAW_MOUSE_FACE || !dpyinfo->mouse_face_hidden) + /* Recognize when we are called to operate on rows that don't exist + anymore. This can happen when a window is split. */ + && dpyinfo->mouse_face_end_row < w->current_matrix->nrows) + { + int phys_cursor_on_p = w->phys_cursor_on_p; + struct glyph_row *row, *first, *last; + + first = MATRIX_ROW (w->current_matrix, dpyinfo->mouse_face_beg_row); + last = MATRIX_ROW (w->current_matrix, dpyinfo->mouse_face_end_row); + + for (row = first; row <= last && row->enabled_p; ++row) + { + int start_hpos, end_hpos, start_x; + + /* For all but the first row, the highlight starts at column 0. */ + if (row == first) + { + start_hpos = dpyinfo->mouse_face_beg_col; + start_x = dpyinfo->mouse_face_beg_x; + } + else + { + start_hpos = 0; + start_x = 0; + } + + if (row == last) + end_hpos = dpyinfo->mouse_face_end_col; + else + end_hpos = row->used[TEXT_AREA]; + + if (end_hpos > start_hpos) + { + x_draw_glyphs (w, start_x, row, TEXT_AREA, + start_hpos, end_hpos, draw, 0); + + row->mouse_face_p + = draw == DRAW_MOUSE_FACE || draw == DRAW_IMAGE_RAISED; + } + } + + /* When we've written over the cursor, arrange for it to + be displayed again. */ + if (phys_cursor_on_p && !w->phys_cursor_on_p) + x_display_cursor (w, 1, + w->phys_cursor.hpos, w->phys_cursor.vpos, + w->phys_cursor.x, w->phys_cursor.y); + } + +#if 0 /* MAC_TODO: mouse cursor */ + /* Change the mouse cursor. */ + if (draw == DRAW_NORMAL_TEXT) + XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + f->output_data.x->text_cursor); + else if (draw == DRAW_MOUSE_FACE) + XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + f->output_data.x->cross_cursor); + else + XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + f->output_data.x->nontext_cursor); +#endif +} + +/* Clear out the mouse-highlighted active region. + Redraw it un-highlighted first. */ + +static int +clear_mouse_face (dpyinfo) + struct mac_display_info *dpyinfo; +{ + int cleared = 0; + + if (! NILP (dpyinfo->mouse_face_window)) + { + show_mouse_face (dpyinfo, DRAW_NORMAL_TEXT); + cleared = 1; + } + + dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; + dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; + dpyinfo->mouse_face_window = Qnil; + dpyinfo->mouse_face_overlay = Qnil; + return cleared; +} + + +/* Clear any mouse-face on window W. This function is part of the + redisplay interface, and is called from try_window_id and similar + functions to ensure the mouse-highlight is off. */ + +static void +x_clear_mouse_face (w) + struct window *w; +{ + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (XFRAME (w->frame)); + Lisp_Object window; + + BLOCK_INPUT; + XSETWINDOW (window, w); + if (EQ (window, dpyinfo->mouse_face_window)) + clear_mouse_face (dpyinfo); + UNBLOCK_INPUT; +} + + +/* Just discard the mouse face information for frame F, if any. + This is used when the size of F is changed. */ + +void +cancel_mouse_face (f) + FRAME_PTR f; +{ + Lisp_Object window; + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + + window = dpyinfo->mouse_face_window; + if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f) + { + dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; + dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; + dpyinfo->mouse_face_window = Qnil; + } +} + +static struct scroll_bar *x_window_to_scroll_bar (); +static void x_scroll_bar_report_motion (); +static void x_check_fullscreen P_ ((struct frame *)); +static void x_check_fullscreen_move P_ ((struct frame *)); +static int glyph_rect P_ ((struct frame *f, int, int, Rect *)); + + +/* Try to determine frame pixel position and size of the glyph under + frame pixel coordinates X/Y on frame F . Return the position and + size in *RECT. Value is non-zero if we could compute these + values. */ + +static int +glyph_rect (f, x, y, rect) + struct frame *f; + int x, y; + Rect *rect; +{ + Lisp_Object window; + int part; + + window = window_from_coordinates (f, x, y, &part, 0); + if (!NILP (window)) + { + struct window *w = XWINDOW (window); + struct glyph_row *r = MATRIX_FIRST_TEXT_ROW (w->current_matrix); + struct glyph_row *end = r + w->current_matrix->nrows - 1; + + frame_to_window_pixel_xy (w, &x, &y); + + for (; r < end && r->enabled_p; ++r) + if (r->y <= y && r->y + r->height > y) + { + /* Found the row at y. */ + struct glyph *g = r->glyphs[TEXT_AREA]; + struct glyph *end = g + r->used[TEXT_AREA]; + int gx; + + rect->top = WINDOW_TO_FRAME_PIXEL_Y (w, r->y); + rect->bottom = rect->top + r->height; + + if (x < r->x) + { + /* x is to the left of the first glyph in the row. */ + rect->left = XINT (w->left); + rect->right = WINDOW_TO_FRAME_PIXEL_X (w, r->x); + return 1; + } + + for (gx = r->x; g < end; gx += g->pixel_width, ++g) + if (gx <= x && gx + g->pixel_width > x) + { + /* x is on a glyph. */ + rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx); + rect->right = rect->left + g->pixel_width; + return 1; + } + + /* x is to the right of the last glyph in the row. */ + rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx); + rect->right = XINT (w->left) + XINT (w->width); + return 1; + } + } + + /* The y is not on any row. */ + return 0; +} + +/* Record the position of the mouse in last_mouse_glyph. */ +static void +remember_mouse_glyph (f1, gx, gy) + struct frame * f1; + int gx, gy; +{ + if (!glyph_rect (f1, gx, gy, &last_mouse_glyph)) + { + int width = FRAME_SMALLEST_CHAR_WIDTH (f1); + int height = FRAME_SMALLEST_FONT_HEIGHT (f1); + + /* Arrange for the division in PIXEL_TO_CHAR_COL etc. to + round down even for negative values. */ + if (gx < 0) + gx -= width - 1; + if (gy < 0) + gy -= height - 1; +#if 0 + /* This was the original code from XTmouse_position, but it seems + to give the position of the glyph diagonally next to the one + the mouse is over. */ + gx = (gx + width - 1) / width * width; + gy = (gy + height - 1) / height * height; +#else + gx = gx / width * width; + gy = gy / height * height; +#endif + + last_mouse_glyph.left = gx; + last_mouse_glyph.top = gy; + last_mouse_glyph.right = gx + width; + last_mouse_glyph.bottom = gy + height; + } +} + +/* Return the current position of the mouse. + *fp should be a frame which indicates which display to ask about. + + If the mouse movement started in a scroll bar, set *fp, *bar_window, + and *part to the frame, window, and scroll bar part that the mouse + is over. Set *x and *y to the portion and whole of the mouse's + position on the scroll bar. + + If the mouse movement started elsewhere, set *fp to the frame the + mouse is on, *bar_window to nil, and *x and *y to the character cell + the mouse is over. + + Set *time to the server time-stamp for the time at which the mouse + was at this position. + + Don't store anything if we don't have a valid set of values to report. + + This clears the mouse_moved flag, so we can wait for the next mouse + movement. */ + +static void +XTmouse_position (fp, insist, bar_window, part, x, y, time) + FRAME_PTR *fp; + int insist; + Lisp_Object *bar_window; + enum scroll_bar_part *part; + Lisp_Object *x, *y; + unsigned long *time; +{ + Point mouse_pos; + int ignore1, ignore2; + WindowPtr wp = FrontWindow (); + struct frame *f = ((mac_output *) GetWRefCon (wp))->mFP; + Lisp_Object frame, tail; + + BLOCK_INPUT; + + if (! NILP (last_mouse_scroll_bar) && insist == 0) + x_scroll_bar_report_motion (fp, bar_window, part, x, y, time); + else + { + /* Clear the mouse-moved flag for every frame on this display. */ + FOR_EACH_FRAME (tail, frame) + XFRAME (frame)->mouse_moved = 0; + + last_mouse_scroll_bar = Qnil; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (wp)); +#else + SetPort (wp); +#endif + + GetMouse (&mouse_pos); + + pixel_to_glyph_coords (f, mouse_pos.h, mouse_pos.v, &ignore1, &ignore2, + &last_mouse_glyph, insist); + + *bar_window = Qnil; + *part = scroll_bar_handle; + *fp = f; + XSETINT (*x, mouse_pos.h); + XSETINT (*y, mouse_pos.v); + *time = last_mouse_movement_time; + } + + UNBLOCK_INPUT; +} + + +/************************************************************************ + Scroll bars, general + ************************************************************************/ + +/* Create a scroll bar and return the scroll bar vector for it. W is + the Emacs window on which to create the scroll bar. TOP, LEFT, + WIDTH and HEIGHT are the pixel coordinates and dimensions of the + scroll bar. */ + +static struct scroll_bar * +x_scroll_bar_create (w, top, left, width, height, disp_top, disp_height) + struct window *w; + int top, left, width, height, disp_top, disp_height; +{ + struct frame *f = XFRAME (w->frame); + struct scroll_bar *bar + = XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil)); + Rect r; + ControlHandle ch; + + BLOCK_INPUT; + + r.left = left; + r.top = disp_top; + r.right = left + width; + r.bottom = disp_top + disp_height; + +#ifdef TARGET_API_MAC_CARBON + ch = NewControl (FRAME_MAC_WINDOW (f), &r, "\p", 1, 0, 0, 0, + kControlScrollBarProc, 0L); +#else + ch = NewControl (FRAME_MAC_WINDOW (f), &r, "\p", 1, 0, 0, 0, scrollBarProc, + 0L); +#endif + SET_SCROLL_BAR_CONTROL_HANDLE (bar, ch); + SetControlReference (ch, (long) bar); + + XSETWINDOW (bar->window, w); + XSETINT (bar->top, top); + XSETINT (bar->left, left); + XSETINT (bar->width, width); + XSETINT (bar->height, height); + XSETINT (bar->start, 0); + XSETINT (bar->end, 0); + bar->dragging = Qnil; + + /* Add bar to its frame's list of scroll bars. */ + bar->next = FRAME_SCROLL_BARS (f); + bar->prev = Qnil; + XSETVECTOR (FRAME_SCROLL_BARS (f), bar); + if (!NILP (bar->next)) + XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar); + + UNBLOCK_INPUT; + return bar; +} + + +/* Draw BAR's handle in the proper position. + + If the handle is already drawn from START to END, don't bother + redrawing it, unless REBUILD is non-zero; in that case, always + redraw it. (REBUILD is handy for drawing the handle after expose + events.) + + Normally, we want to constrain the start and end of the handle to + fit inside its rectangle, but if the user is dragging the scroll + bar handle, we want to let them drag it down all the way, so that + the bar's top is as far down as it goes; otherwise, there's no way + to move to the very end of the buffer. */ + +static void +x_scroll_bar_set_handle (bar, start, end, rebuild) + struct scroll_bar *bar; + int start, end; + int rebuild; +{ + int dragging = ! NILP (bar->dragging); + ControlHandle ch = SCROLL_BAR_CONTROL_HANDLE (bar); + FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); + int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)); + int length = end - start; + + /* If the display is already accurate, do nothing. */ + if (! rebuild + && start == XINT (bar->start) + && end == XINT (bar->end)) + return; + + BLOCK_INPUT; + + /* Make sure the values are reasonable, and try to preserve the + distance between start and end. */ + if (start < 0) + start = 0; + else if (start > top_range) + start = top_range; + end = start + length; + + if (end < start) + end = start; + else if (end > top_range && ! dragging) + end = top_range; + + /* Store the adjusted setting in the scroll bar. */ + XSETINT (bar->start, start); + XSETINT (bar->end, end); + + /* Clip the end position, just for display. */ + if (end > top_range) + end = top_range; + + /* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below + top positions, to make sure the handle is always at least that + many pixels tall. */ + end += VERTICAL_SCROLL_BAR_MIN_HANDLE; + + SetControlMinimum (ch, 0); + /* Don't inadvertently activate deactivated scroll bars */ + if (GetControlMaximum (ch) != -1) + SetControlMaximum (ch, top_range + VERTICAL_SCROLL_BAR_MIN_HANDLE + - (end - start)); + SetControlValue (ch, start); +#if TARGET_API_MAC_CARBON + SetControlViewSize (ch, end - start); +#endif + + UNBLOCK_INPUT; +} + + +/* Destroy scroll bar BAR, and set its Emacs window's scroll bar to + nil. */ + +static void +x_scroll_bar_remove (bar) + struct scroll_bar *bar; +{ + FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); + + BLOCK_INPUT; + + /* Destroy the Mac scroll bar control */ + DisposeControl (SCROLL_BAR_CONTROL_HANDLE (bar)); + + /* Disassociate this scroll bar from its window. */ + XWINDOW (bar->window)->vertical_scroll_bar = Qnil; + + UNBLOCK_INPUT; +} + +/* Set the handle of the vertical scroll bar for WINDOW to indicate + that we are displaying PORTION characters out of a total of WHOLE + characters, starting at POSITION. If WINDOW has no scroll bar, + create one. */ +static void +XTset_vertical_scroll_bar (w, portion, whole, position) + struct window *w; + int portion, whole, position; +{ + struct frame *f = XFRAME (w->frame); + struct scroll_bar *bar; + int top, height, left, sb_left, width, sb_width, disp_top, disp_height; + int window_x, window_y, window_width, window_height; + + /* Get window dimensions. */ + window_box (w, -1, &window_x, &window_y, &window_width, &window_height); + top = window_y; +#ifdef MAC_OSX + width = 16; +#else + width = FRAME_SCROLL_BAR_COLS (f) * CANON_X_UNIT (f); +#endif + height = window_height; + + /* Compute the left edge of the scroll bar area. */ + if (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)) + left = XINT (w->left) + XINT (w->width) - FRAME_SCROLL_BAR_COLS (f); + else + left = XFASTINT (w->left); + left *= CANON_X_UNIT (f); + left += FRAME_INTERNAL_BORDER_WIDTH (f); + + /* Compute the width of the scroll bar which might be less than + the width of the area reserved for the scroll bar. */ + if (FRAME_SCROLL_BAR_PIXEL_WIDTH (f) > 0) + sb_width = FRAME_SCROLL_BAR_PIXEL_WIDTH (f); + else + sb_width = width; + + /* Compute the left edge of the scroll bar. */ + if (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f)) + sb_left = left + width - sb_width - (width - sb_width) / 2; + else + sb_left = left + (width - sb_width) / 2; + + /* Adjustments according to Inside Macintosh to make it look nice */ + disp_top = top; + disp_height = height; + if (disp_top == 0) + { + disp_top = -1; + disp_height++; + } + else if (disp_top == PIXEL_HEIGHT (f) - 16) + { + disp_top++; + disp_height--; + } + + if (sb_left + sb_width == PIXEL_WIDTH (f)) + sb_left++; + + /* Does the scroll bar exist yet? */ + if (NILP (w->vertical_scroll_bar)) + { + BLOCK_INPUT; + XClearArea (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + left, top, width, height, 0); + UNBLOCK_INPUT; + bar = x_scroll_bar_create (w, top, sb_left, sb_width, height, disp_top, + disp_height); + XSETVECTOR (w->vertical_scroll_bar, bar); + } + else + { + /* It may just need to be moved and resized. */ + ControlHandle ch; + + bar = XSCROLL_BAR (w->vertical_scroll_bar); + ch = SCROLL_BAR_CONTROL_HANDLE (bar); + + BLOCK_INPUT; + + /* If already correctly positioned, do nothing. */ + if (XINT (bar->left) == sb_left + && XINT (bar->top) == top + && XINT (bar->width) == sb_width + && XINT (bar->height) == height) + Draw1Control (ch); + else + { + /* Clear areas not covered by the scroll bar because it's not as + wide as the area reserved for it . This makes sure a + previous mode line display is cleared after C-x 2 C-x 1, for + example. */ + int area_width = FRAME_SCROLL_BAR_COLS (f) * CANON_X_UNIT (f); + XClearArea (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + left, top, area_width, height, 0); + +#if 0 + if (sb_left + sb_width >= PIXEL_WIDTH (f)) + XClearArea (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + sb_left - 1, top, 1, height, 0); +#endif + + HideControl (ch); + MoveControl (ch, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM, disp_top); + SizeControl (ch, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2, + disp_height); + ShowControl (ch); + + /* Remember new settings. */ + XSETINT (bar->left, sb_left); + XSETINT (bar->top, top); + XSETINT (bar->width, sb_width); + XSETINT (bar->height, height); + } + + UNBLOCK_INPUT; + } + + /* Set the scroll bar's current state, unless we're currently being + dragged. */ + if (NILP (bar->dragging)) + { + int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height); + + if (whole == 0) + x_scroll_bar_set_handle (bar, 0, top_range, 0); + else + { + int start = ((double) position * top_range) / whole; + int end = ((double) (position + portion) * top_range) / whole; + x_scroll_bar_set_handle (bar, start, end, 0); + } + } +} + + +/* The following three hooks are used when we're doing a thorough + redisplay of the frame. We don't explicitly know which scroll bars + are going to be deleted, because keeping track of when windows go + away is a real pain - "Can you say set-window-configuration, boys + and girls?" Instead, we just assert at the beginning of redisplay + that *all* scroll bars are to be removed, and then save a scroll bar + from the fiery pit when we actually redisplay its window. */ + +/* Arrange for all scroll bars on FRAME to be removed at the next call + to `*judge_scroll_bars_hook'. A scroll bar may be spared if + `*redeem_scroll_bar_hook' is applied to its window before the judgment. */ + +static void +XTcondemn_scroll_bars (frame) + FRAME_PTR frame; +{ + /* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */ + while (! NILP (FRAME_SCROLL_BARS (frame))) + { + Lisp_Object bar; + bar = FRAME_SCROLL_BARS (frame); + FRAME_SCROLL_BARS (frame) = XSCROLL_BAR (bar)->next; + XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame); + XSCROLL_BAR (bar)->prev = Qnil; + if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame))) + XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar; + FRAME_CONDEMNED_SCROLL_BARS (frame) = bar; + } +} + + +/* Un-mark WINDOW's scroll bar for deletion in this judgment cycle. + Note that WINDOW isn't necessarily condemned at all. */ + +static void +XTredeem_scroll_bar (window) + struct window *window; +{ + struct scroll_bar *bar; + + /* We can't redeem this window's scroll bar if it doesn't have one. */ + if (NILP (window->vertical_scroll_bar)) + abort (); + + bar = XSCROLL_BAR (window->vertical_scroll_bar); + + /* Unlink it from the condemned list. */ + { + FRAME_PTR f = XFRAME (WINDOW_FRAME (window)); + + if (NILP (bar->prev)) + { + /* If the prev pointer is nil, it must be the first in one of + the lists. */ + if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar)) + /* It's not condemned. Everything's fine. */ + return; + else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f), + window->vertical_scroll_bar)) + FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next; + else + /* If its prev pointer is nil, it must be at the front of + one or the other! */ + abort (); + } + else + XSCROLL_BAR (bar->prev)->next = bar->next; + + if (! NILP (bar->next)) + XSCROLL_BAR (bar->next)->prev = bar->prev; + + bar->next = FRAME_SCROLL_BARS (f); + bar->prev = Qnil; + XSETVECTOR (FRAME_SCROLL_BARS (f), bar); + if (! NILP (bar->next)) + XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar); + } +} + +/* Remove all scroll bars on FRAME that haven't been saved since the + last call to `*condemn_scroll_bars_hook'. */ + +static void +XTjudge_scroll_bars (f) + FRAME_PTR f; +{ + Lisp_Object bar, next; + + bar = FRAME_CONDEMNED_SCROLL_BARS (f); + + /* Clear out the condemned list now so we won't try to process any + more events on the hapless scroll bars. */ + FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil; + + for (; ! NILP (bar); bar = next) + { + struct scroll_bar *b = XSCROLL_BAR (bar); + + x_scroll_bar_remove (b); + + next = b->next; + b->next = b->prev = Qnil; + } + + /* Now there should be no references to the condemned scroll bars, + and they should get garbage-collected. */ +} + + +static void +activate_scroll_bars (frame) + FRAME_PTR frame; +{ + Lisp_Object bar; + ControlHandle ch; + + bar = FRAME_SCROLL_BARS (frame); + while (! NILP (bar)) + { + ch = SCROLL_BAR_CONTROL_HANDLE (XSCROLL_BAR (bar)); +#ifdef TARGET_API_MAC_CARBON + ActivateControl (ch); +#else + SetControlMaximum (ch, + VERTICAL_SCROLL_BAR_TOP_RANGE (frame, + XINT (XSCROLL_BAR (bar) + ->height)) - 1); +#endif + bar = XSCROLL_BAR (bar)->next; + } +} + + +static void +deactivate_scroll_bars (frame) + FRAME_PTR frame; +{ + Lisp_Object bar; + ControlHandle ch; + + bar = FRAME_SCROLL_BARS (frame); + while (! NILP (bar)) + { + ch = SCROLL_BAR_CONTROL_HANDLE (XSCROLL_BAR (bar)); +#ifdef TARGET_API_MAC_CARBON + DeactivateControl (ch); +#else + SetControlMaximum (ch, XINT (-1)); +#endif + bar = XSCROLL_BAR (bar)->next; + } +} + +/* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind + is set to something other than no_event, it is enqueued. + + This may be called from a signal handler, so we have to ignore GC + mark bits. */ + +static void +x_scroll_bar_handle_click (bar, part_code, er, bufp) + struct scroll_bar *bar; + int part_code; + EventRecord *er; + struct input_event *bufp; +{ + if (! GC_WINDOWP (bar->window)) + abort (); + + bufp->kind = scroll_bar_click; + bufp->frame_or_window = bar->window; + bufp->arg = Qnil; + + bar->dragging = Qnil; + + switch (part_code) + { + case kControlUpButtonPart: + bufp->part = scroll_bar_up_arrow; + break; + case kControlDownButtonPart: + bufp->part = scroll_bar_down_arrow; + break; + case kControlPageUpPart: + bufp->part = scroll_bar_above_handle; + break; + case kControlPageDownPart: + bufp->part = scroll_bar_below_handle; + break; +#ifdef TARGET_API_MAC_CARBON + default: +#else + case kControlIndicatorPart: +#endif + if (er->what == mouseDown) + bar->dragging = make_number (0); + XSETVECTOR (last_mouse_scroll_bar, bar); + bufp->part = scroll_bar_handle; + break; + } +} + + +/* Handle some mouse motion while someone is dragging the scroll bar. + + This may be called from a signal handler, so we have to ignore GC + mark bits. */ + +static void +x_scroll_bar_note_movement (bar, y_pos, t) + struct scroll_bar *bar; + int y_pos; + Time t; +{ + FRAME_PTR f = XFRAME (XWINDOW (bar->window)->frame); + + last_mouse_movement_time = t; + + f->mouse_moved = 1; + XSETVECTOR (last_mouse_scroll_bar, bar); + + /* If we're dragging the bar, display it. */ + if (! GC_NILP (bar->dragging)) + { + /* Where should the handle be now? */ + int new_start = y_pos - 24; + + if (new_start != XINT (bar->start)) + { + int new_end = new_start + (XINT (bar->end) - XINT (bar->start)); + + x_scroll_bar_set_handle (bar, new_start, new_end, 0); + } + } +} + + +/* Return information to the user about the current position of the + mouse on the scroll bar. */ + +static void +x_scroll_bar_report_motion (fp, bar_window, part, x, y, time) + FRAME_PTR *fp; + Lisp_Object *bar_window; + enum scroll_bar_part *part; + Lisp_Object *x, *y; + unsigned long *time; +{ + struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar); + WindowPtr wp = FrontWindow (); + Point mouse_pos; + struct frame *f = ((mac_output *) GetWRefCon (wp))->mFP; + int win_y, top_range; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (wp)); +#else + SetPort (wp); +#endif + + GetMouse (&mouse_pos); + + win_y = mouse_pos.v - XINT (bar->top); + top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)); + + win_y -= VERTICAL_SCROLL_BAR_TOP_BORDER; + + win_y -= 24; + + if (! NILP (bar->dragging)) + win_y -= XINT (bar->dragging); + + if (win_y < 0) + win_y = 0; + if (win_y > top_range) + win_y = top_range; + + *fp = f; + *bar_window = bar->window; + + if (! NILP (bar->dragging)) + *part = scroll_bar_handle; + else if (win_y < XINT (bar->start)) + *part = scroll_bar_above_handle; + else if (win_y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE) + *part = scroll_bar_handle; + else + *part = scroll_bar_below_handle; + + XSETINT (*x, win_y); + XSETINT (*y, top_range); + + f->mouse_moved = 0; + last_mouse_scroll_bar = Qnil; + + *time = last_mouse_movement_time; +} + +/*********************************************************************** + Text Cursor + ***********************************************************************/ + +/* Notice if the text cursor of window W has been overwritten by a + drawing operation that outputs glyphs starting at START_X and + ending at END_X in the line given by output_cursor.vpos. + Coordinates are area-relative. END_X < 0 means all the rest + of the line after START_X has been written. */ + +static void +notice_overwritten_cursor (w, area, x0, x1, y0, y1) + struct window *w; + enum glyph_row_area area; + int x0, x1, y0, y1; +{ + if (area == TEXT_AREA + && w->phys_cursor_on_p + && y0 <= w->phys_cursor.y + && y1 >= w->phys_cursor.y + w->phys_cursor_height + && x0 <= w->phys_cursor.x + && (x1 < 0 || x1 > w->phys_cursor.x)) + w->phys_cursor_on_p = 0; +} + + +/* Set clipping for output in glyph row ROW. W is the window in which + we operate. GC is the graphics context to set clipping in. + WHOLE_LINE_P non-zero means include the areas used for truncation + mark display and alike in the clipping rectangle. + + ROW may be a text row or, e.g., a mode line. Text rows must be + clipped to the interior of the window dedicated to text display, + mode lines must be clipped to the whole window. */ + +static void +x_clip_to_row (w, row, gc, whole_line_p) + struct window *w; + struct glyph_row *row; + GC gc; + int whole_line_p; +{ + struct frame *f = XFRAME (WINDOW_FRAME (w)); + Rect clip_rect; + int window_x, window_y, window_width, window_height; + + window_box (w, -1, &window_x, &window_y, &window_width, &window_height); + + clip_rect.left = WINDOW_TO_FRAME_PIXEL_X (w, 0); + clip_rect.top = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); + clip_rect.top = max (clip_rect.top, window_y); + clip_rect.right = clip_rect.left + window_width; + clip_rect.bottom = clip_rect.top + row->visible_height; + + /* If clipping to the whole line, including trunc marks, extend + the rectangle to the left and increase its width. */ + if (whole_line_p) + { + clip_rect.left -= FRAME_X_LEFT_FRINGE_WIDTH (f); + clip_rect.right += FRAME_X_FRINGE_WIDTH (f); + } + + mac_set_clip_rectangle (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), &clip_rect); +} + + +/* Draw a hollow box cursor on window W in glyph row ROW. */ + +static void +x_draw_hollow_cursor (w, row) + struct window *w; + struct glyph_row *row; +{ + struct frame *f = XFRAME (WINDOW_FRAME (w)); + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + Display *dpy = FRAME_MAC_DISPLAY (f); + int x, y, wd, h; + XGCValues xgcv; + struct glyph *cursor_glyph; + GC gc; + + /* Compute frame-relative coordinates from window-relative + coordinates. */ + x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x); + y = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y) + + row->ascent - w->phys_cursor_ascent); + h = row->height - 1; + + /* Get the glyph the cursor is on. If we can't tell because + the current matrix is invalid or such, give up. */ + cursor_glyph = get_phys_cursor_glyph (w); + if (cursor_glyph == NULL) + return; + + /* Compute the width of the rectangle to draw. If on a stretch + glyph, and `x-stretch-block-cursor' is nil, don't draw a + rectangle as wide as the glyph, but use a canonical character + width instead. */ + wd = cursor_glyph->pixel_width - 1; + if (cursor_glyph->type == STRETCH_GLYPH + && !x_stretch_cursor_p) + wd = min (CANON_X_UNIT (f), wd); + + /* The foreground of cursor_gc is typically the same as the normal + background color, which can cause the cursor box to be invisible. */ + xgcv.foreground = f->output_data.mac->cursor_pixel; + if (dpyinfo->scratch_cursor_gc) + XChangeGC (dpy, dpyinfo->scratch_cursor_gc, GCForeground, &xgcv); + else + dpyinfo->scratch_cursor_gc = XCreateGC (dpy, FRAME_MAC_WINDOW (f), + GCForeground, &xgcv); + gc = dpyinfo->scratch_cursor_gc; + + /* Set clipping, draw the rectangle, and reset clipping again. */ + x_clip_to_row (w, row, gc, 0); + mac_draw_rectangle (dpy, FRAME_MAC_WINDOW (f), gc, x, y, wd, h); + mac_reset_clipping (dpy, FRAME_MAC_WINDOW (f)); +} + + +/* Draw a bar cursor on window W in glyph row ROW. + + Implementation note: One would like to draw a bar cursor with an + angle equal to the one given by the font property XA_ITALIC_ANGLE. + Unfortunately, I didn't find a font yet that has this property set. + --gerd. */ + +static void +x_draw_bar_cursor (w, row, width) + struct window *w; + struct glyph_row *row; + int width; +{ + /* If cursor hpos is out of bounds, don't draw garbage. This can + happen in mini-buffer windows when switching between echo area + glyphs and mini-buffer. */ + if (w->phys_cursor.hpos < row->used[TEXT_AREA]) + { + struct frame *f = XFRAME (w->frame); + struct glyph *cursor_glyph; + GC gc; + int x; + unsigned long mask; + XGCValues xgcv; + Display *dpy; + Window window; + + cursor_glyph = get_phys_cursor_glyph (w); + if (cursor_glyph == NULL) + return; + + xgcv.background = f->output_data.mac->cursor_pixel; + xgcv.foreground = f->output_data.mac->cursor_pixel; + mask = GCForeground | GCBackground; + dpy = FRAME_MAC_DISPLAY (f); + window = FRAME_MAC_WINDOW (f); + gc = FRAME_X_DISPLAY_INFO (f)->scratch_cursor_gc; + + if (gc) + XChangeGC (dpy, gc, mask, &xgcv); + else + { + gc = XCreateGC (dpy, window, mask, &xgcv); + FRAME_MAC_DISPLAY_INFO (f)->scratch_cursor_gc = gc; + } + + if (width < 0) + width = f->output_data.mac->cursor_width; + + x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x); + x_clip_to_row (w, row, gc, 0); + XFillRectangle (dpy, window, gc, + x, + WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y), + min (cursor_glyph->pixel_width, width), + row->height); + mac_reset_clipping (dpy, FRAME_MAC_WINDOW (f)); + } +} + + +/* Clear the cursor of window W to background color, and mark the + cursor as not shown. This is used when the text where the cursor + is is about to be rewritten. */ + +static void +x_clear_cursor (w) + struct window *w; +{ + if (FRAME_VISIBLE_P (XFRAME (w->frame)) && w->phys_cursor_on_p) + x_update_window_cursor (w, 0); +} + + +/* Draw the cursor glyph of window W in glyph row ROW. See the + comment of x_draw_glyphs for the meaning of HL. */ + +static void +x_draw_phys_cursor_glyph (w, row, hl) + struct window *w; + struct glyph_row *row; + enum draw_glyphs_face hl; +{ + /* If cursor hpos is out of bounds, don't draw garbage. This can + happen in mini-buffer windows when switching between echo area + glyphs and mini-buffer. */ + if (w->phys_cursor.hpos < row->used[TEXT_AREA]) + { + int on_p = w->phys_cursor_on_p; + x_draw_glyphs (w, w->phys_cursor.x, row, TEXT_AREA, + w->phys_cursor.hpos, w->phys_cursor.hpos + 1, + hl, 0); + w->phys_cursor_on_p = on_p; + + /* When we erase the cursor, and ROW is overlapped by other + rows, make sure that these overlapping parts of other rows + are redrawn. */ + if (hl == DRAW_NORMAL_TEXT && row->overlapped_p) + { + if (row > w->current_matrix->rows + && MATRIX_ROW_OVERLAPS_SUCC_P (row - 1)) + x_fix_overlapping_area (w, row - 1, TEXT_AREA); + + if (MATRIX_ROW_BOTTOM_Y (row) < window_text_bottom_y (w) + && MATRIX_ROW_OVERLAPS_PRED_P (row + 1)) + x_fix_overlapping_area (w, row + 1, TEXT_AREA); + } + } +} + + +/* Erase the image of a cursor of window W from the screen. */ + +static void +x_erase_phys_cursor (w) + struct window *w; +{ + struct frame *f = XFRAME (w->frame); + struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); + int hpos = w->phys_cursor.hpos; + int vpos = w->phys_cursor.vpos; + int mouse_face_here_p = 0; + struct glyph_matrix *active_glyphs = w->current_matrix; + struct glyph_row *cursor_row; + struct glyph *cursor_glyph; + enum draw_glyphs_face hl; + + /* No cursor displayed or row invalidated => nothing to do on the + screen. */ + if (w->phys_cursor_type == NO_CURSOR) + goto mark_cursor_off; + + /* VPOS >= active_glyphs->nrows means that window has been resized. + Don't bother to erase the cursor. */ + if (vpos >= active_glyphs->nrows) + goto mark_cursor_off; + + /* If row containing cursor is marked invalid, there is nothing we + can do. */ + cursor_row = MATRIX_ROW (active_glyphs, vpos); + if (!cursor_row->enabled_p) + goto mark_cursor_off; + + /* If row is completely invisible, don't attempt to delete a cursor which + isn't there. This may happen if cursor is at top of window, and + we switch to a buffer with a header line in that window. */ + if (cursor_row->visible_height <= 0) + goto mark_cursor_off; + + /* This can happen when the new row is shorter than the old one. + In this case, either x_draw_glyphs or clear_end_of_line + should have cleared the cursor. Note that we wouldn't be + able to erase the cursor in this case because we don't have a + cursor glyph at hand. */ + if (w->phys_cursor.hpos >= cursor_row->used[TEXT_AREA]) + goto mark_cursor_off; + + /* If the cursor is in the mouse face area, redisplay that when + we clear the cursor. */ + if (! NILP (dpyinfo->mouse_face_window) + && w == XWINDOW (dpyinfo->mouse_face_window) + && (vpos > dpyinfo->mouse_face_beg_row + || (vpos == dpyinfo->mouse_face_beg_row + && hpos >= dpyinfo->mouse_face_beg_col)) + && (vpos < dpyinfo->mouse_face_end_row + || (vpos == dpyinfo->mouse_face_end_row + && hpos < dpyinfo->mouse_face_end_col)) + /* Don't redraw the cursor's spot in mouse face if it is at the + end of a line (on a newline). The cursor appears there, but + mouse highlighting does not. */ + && cursor_row->used[TEXT_AREA] > hpos) + mouse_face_here_p = 1; + + /* Maybe clear the display under the cursor. */ + if (w->phys_cursor_type == HOLLOW_BOX_CURSOR) + { + int x; + int header_line_height = WINDOW_DISPLAY_HEADER_LINE_HEIGHT (w); + + cursor_glyph = get_phys_cursor_glyph (w); + if (cursor_glyph == NULL) + goto mark_cursor_off; + + x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x), + + XClearArea (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), + x, + WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height, + cursor_row->y)), + cursor_glyph->pixel_width, + cursor_row->visible_height, + 0); + } + + /* Erase the cursor by redrawing the character underneath it. */ + if (mouse_face_here_p) + hl = DRAW_MOUSE_FACE; + else + hl = DRAW_NORMAL_TEXT; + x_draw_phys_cursor_glyph (w, cursor_row, hl); + + mark_cursor_off: + w->phys_cursor_on_p = 0; + w->phys_cursor_type = NO_CURSOR; +} + + +/* Non-zero if physical cursor of window W is within mouse face. */ + +static int +cursor_in_mouse_face_p (w) + struct window *w; +{ + struct mac_display_info *dpyinfo + = FRAME_MAC_DISPLAY_INFO (XFRAME (w->frame)); + int in_mouse_face = 0; + + if (WINDOWP (dpyinfo->mouse_face_window) + && XWINDOW (dpyinfo->mouse_face_window) == w) + { + int hpos = w->phys_cursor.hpos; + int vpos = w->phys_cursor.vpos; + + if (vpos >= dpyinfo->mouse_face_beg_row + && vpos <= dpyinfo->mouse_face_end_row + && (vpos > dpyinfo->mouse_face_beg_row + || hpos >= dpyinfo->mouse_face_beg_col) + && (vpos < dpyinfo->mouse_face_end_row + || hpos < dpyinfo->mouse_face_end_col + || dpyinfo->mouse_face_past_end)) + in_mouse_face = 1; + } + + return in_mouse_face; +} + + +/* Display or clear cursor of window W. If ON is zero, clear the + cursor. If it is non-zero, display the cursor. If ON is nonzero, + where to put the cursor is specified by HPOS, VPOS, X and Y. */ + +void +x_display_and_set_cursor (w, on, hpos, vpos, x, y) + struct window *w; + int on, hpos, vpos, x, y; +{ + struct frame *f = XFRAME (w->frame); + int new_cursor_type; + int new_cursor_width; + struct glyph_matrix *current_glyphs; + struct glyph_row *glyph_row; + struct glyph *glyph; + int cursor_non_selected; + int active_cursor = 1; + + /* This is pointless on invisible frames, and dangerous on garbaged + windows and frames; in the latter case, the frame or window may + be in the midst of changing its size, and x and y may be off the + window. */ + if (! FRAME_VISIBLE_P (f) + || FRAME_GARBAGED_P (f) + || vpos >= w->current_matrix->nrows + || hpos >= w->current_matrix->matrix_w) + return; + + /* If cursor is off and we want it off, return quickly. */ + if (!on && !w->phys_cursor_on_p) + return; + + current_glyphs = w->current_matrix; + glyph_row = MATRIX_ROW (current_glyphs, vpos); + glyph = glyph_row->glyphs[TEXT_AREA] + hpos; + + /* If cursor row is not enabled, we don't really know where to + display the cursor. */ + if (!glyph_row->enabled_p) + { + w->phys_cursor_on_p = 0; + return; + } + + xassert (interrupt_input_blocked); + + /* Set new_cursor_type to the cursor we want to be displayed. In a + mini-buffer window, we want the cursor only to appear if we are + reading input from this window. For the selected window, we want + the cursor type given by the frame parameter. If explicitly + marked off, draw no cursor. In all other cases, we want a hollow + box cursor. */ + cursor_non_selected + = !NILP (Fbuffer_local_value (Qcursor_in_non_selected_windows, + w->buffer)); + new_cursor_width = -1; + if (cursor_in_echo_area + && FRAME_HAS_MINIBUF_P (f) + && EQ (FRAME_MINIBUF_WINDOW (f), echo_area_window)) + { + if (w == XWINDOW (echo_area_window)) + new_cursor_type = FRAME_DESIRED_CURSOR (f); + else + { + if (cursor_non_selected) + new_cursor_type = HOLLOW_BOX_CURSOR; + else + new_cursor_type = NO_CURSOR; + active_cursor = 0; + } + } + else + { + if (f != FRAME_MAC_DISPLAY_INFO (f)->x_highlight_frame + || w != XWINDOW (f->selected_window)) + { + active_cursor = 0; + + if (MINI_WINDOW_P (w) + || !cursor_non_selected + || NILP (XBUFFER (w->buffer)->cursor_type)) + new_cursor_type = NO_CURSOR; + else + new_cursor_type = HOLLOW_BOX_CURSOR; + } + else + { + struct buffer *b = XBUFFER (w->buffer); + + if (EQ (b->cursor_type, Qt)) + new_cursor_type = FRAME_DESIRED_CURSOR (f); + else + new_cursor_type = x_specified_cursor_type (b->cursor_type, + &new_cursor_width); + if (w->cursor_off_p) + { + if (new_cursor_type == FILLED_BOX_CURSOR) + new_cursor_type = HOLLOW_BOX_CURSOR; + else if (new_cursor_type == BAR_CURSOR && new_cursor_width > 1) + new_cursor_width = 1; + else + new_cursor_type = NO_CURSOR; + } + } + } + + /* If cursor is currently being shown and we don't want it to be or + it is in the wrong place, or the cursor type is not what we want, + erase it. */ + if (w->phys_cursor_on_p + && (!on + || w->phys_cursor.x != x + || w->phys_cursor.y != y + || new_cursor_type != w->phys_cursor_type + || (new_cursor_type == BAR_CURSOR + && new_cursor_width != w->phys_cursor_width))) + x_erase_phys_cursor (w); + + /* If the cursor is now invisible and we want it to be visible, + display it. */ + if (on && !w->phys_cursor_on_p) + { + w->phys_cursor_ascent = glyph_row->ascent; + w->phys_cursor_height = glyph_row->height; + + /* Set phys_cursor_.* before x_draw_.* is called because some + of them may need the information. */ + w->phys_cursor.x = x; + w->phys_cursor.y = glyph_row->y; + w->phys_cursor.hpos = hpos; + w->phys_cursor.vpos = vpos; + w->phys_cursor_type = new_cursor_type; + w->phys_cursor_width = new_cursor_width; + w->phys_cursor_on_p = 1; + + switch (new_cursor_type) + { + case HOLLOW_BOX_CURSOR: + x_draw_hollow_cursor (w, glyph_row); + break; + + case FILLED_BOX_CURSOR: + x_draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR); + break; + + case BAR_CURSOR: + x_draw_bar_cursor (w, glyph_row, new_cursor_width); + break; + + case NO_CURSOR: + break; + + default: + abort (); + } + } +} + + +/* Display the cursor on window W, or clear it. X and Y are window + relative pixel coordinates. HPOS and VPOS are glyph matrix + positions. If W is not the selected window, display a hollow + cursor. ON non-zero means display the cursor at X, Y which + correspond to HPOS, VPOS, otherwise it is cleared. */ + +void +x_display_cursor (w, on, hpos, vpos, x, y) + struct window *w; + int on, hpos, vpos, x, y; +{ + BLOCK_INPUT; + x_display_and_set_cursor (w, on, hpos, vpos, x, y); + UNBLOCK_INPUT; +} + + +/* Display the cursor on window W, or clear it, according to ON_P. + Don't change the cursor's position. */ + +void +x_update_cursor (f, on_p) + struct frame *f; + int on_p; +{ + x_update_cursor_in_window_tree (XWINDOW (f->root_window), on_p); +} + + +/* Call x_update_window_cursor with parameter ON_P on all leaf windows + in the window tree rooted at W. */ + +static void +x_update_cursor_in_window_tree (w, on_p) + struct window *w; + int on_p; +{ + while (w) + { + if (!NILP (w->hchild)) + x_update_cursor_in_window_tree (XWINDOW (w->hchild), on_p); + else if (!NILP (w->vchild)) + x_update_cursor_in_window_tree (XWINDOW (w->vchild), on_p); + else + x_update_window_cursor (w, on_p); + + w = NILP (w->next) ? 0 : XWINDOW (w->next); + } +} + + +/* Switch the display of W's cursor on or off, according to the value + of ON. */ + +static void +x_update_window_cursor (w, on) + struct window *w; + int on; +{ + /* Don't update cursor in windows whose frame is in the process + of being deleted. */ + if (w->current_matrix) + { + BLOCK_INPUT; + x_display_and_set_cursor (w, on, w->phys_cursor.hpos, + w->phys_cursor.vpos, w->phys_cursor.x, + w->phys_cursor.y); + UNBLOCK_INPUT; + } +} + + + + +/* Icons. */ + +#if 0 /* MAC_TODO: no icon support yet. */ +int +x_bitmap_icon (f, icon) + struct frame *f; + Lisp_Object icon; +{ + HANDLE hicon; + + if (FRAME_W32_WINDOW (f) == 0) + return 1; + + if (NILP (icon)) + hicon = LoadIcon (hinst, EMACS_CLASS); + else if (STRINGP (icon)) + hicon = LoadImage (NULL, (LPCTSTR) XSTRING (icon)->data, IMAGE_ICON, 0, 0, + LR_DEFAULTSIZE | LR_LOADFROMFILE); + else if (SYMBOLP (icon)) + { + LPCTSTR name; + + if (EQ (icon, intern ("application"))) + name = (LPCTSTR) IDI_APPLICATION; + else if (EQ (icon, intern ("hand"))) + name = (LPCTSTR) IDI_HAND; + else if (EQ (icon, intern ("question"))) + name = (LPCTSTR) IDI_QUESTION; + else if (EQ (icon, intern ("exclamation"))) + name = (LPCTSTR) IDI_EXCLAMATION; + else if (EQ (icon, intern ("asterisk"))) + name = (LPCTSTR) IDI_ASTERISK; + else if (EQ (icon, intern ("winlogo"))) + name = (LPCTSTR) IDI_WINLOGO; + else + return 1; + + hicon = LoadIcon (NULL, name); + } + else + return 1; + + if (hicon == NULL) + return 1; + + PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_BIG, + (LPARAM) hicon); + + return 0; +} +#endif /* MAC_TODO */ + +/************************************************************************ + Handling X errors + ************************************************************************/ + +/* Display Error Handling functions not used on W32. Listing them here + helps diff stay in step when comparing w32term.c with xterm.c. + +x_error_catcher (display, error) +x_catch_errors (dpy) +x_catch_errors_unwind (old_val) +x_check_errors (dpy, format) +x_had_errors_p (dpy) +x_clear_errors (dpy) +x_uncatch_errors (dpy, count) +x_trace_wire () +x_connection_signal (signalnum) +x_connection_closed (dpy, error_message) +x_error_quitter (display, error) +x_error_handler (display, error) +x_io_error_quitter (display) + + */ + + +/* Changing the font of the frame. */ + +/* Give frame F the font named FONTNAME as its default font, and + return the full name of that font. FONTNAME may be a wildcard + pattern; in that case, we choose some font that fits the pattern. + The return value shows which font we chose. */ + +Lisp_Object +x_new_font (f, fontname) + struct frame *f; + register char *fontname; +{ + struct font_info *fontp + = FS_LOAD_FONT (f, 0, fontname, -1); + + if (!fontp) + return Qnil; + + FRAME_FONT (f) = (XFontStruct *) (fontp->font); + FRAME_BASELINE_OFFSET (f) = fontp->baseline_offset; + FRAME_FONTSET (f) = -1; + + /* Compute the scroll bar width in character columns. */ + if (f->scroll_bar_pixel_width > 0) + { + int wid = FONT_WIDTH (FRAME_FONT (f)); + f->scroll_bar_cols = (f->scroll_bar_pixel_width + wid-1) / wid; + } + else + { + int wid = FONT_WIDTH (FRAME_FONT (f)); + f->scroll_bar_cols = (14 + wid - 1) / wid; + } + + /* Now make the frame display the given font. */ + if (FRAME_MAC_WINDOW (f) != 0) + { + frame_update_line_height (f); + if (NILP (tip_frame) || XFRAME (tip_frame) != f) + x_set_window_size (f, 0, f->width, f->height); + } + else + /* If we are setting a new frame's font for the first time, + there are no faces yet, so this font's height is the line height. */ + f->output_data.mac->line_height = FONT_HEIGHT (FRAME_FONT (f)); + + return build_string (fontp->full_name); +} + +/* Give frame F the fontset named FONTSETNAME as its default font, and + return the full name of that fontset. FONTSETNAME may be a wildcard + pattern; in that case, we choose some fontset that fits the pattern. + The return value shows which fontset we chose. */ + +Lisp_Object +x_new_fontset (f, fontsetname) + struct frame *f; + char *fontsetname; +{ + int fontset = fs_query_fontset (build_string (fontsetname), 0); + Lisp_Object result; + + if (fontset < 0) + return Qnil; + + if (FRAME_FONTSET (f) == fontset) + /* This fontset is already set in frame F. There's nothing more + to do. */ + return fontset_name (fontset); + + result = x_new_font (f, (XSTRING (fontset_ascii (fontset))->data)); + + if (!STRINGP (result)) + /* Can't load ASCII font. */ + return Qnil; + + /* Since x_new_font doesn't update any fontset information, do it now. */ + FRAME_FONTSET(f) = fontset; + + return build_string (fontsetname); +} + +/* Compute actual fringe widths */ + +void +x_compute_fringe_widths (f, redraw) + struct frame *f; + int redraw; +{ + int o_left = f->output_data.mac->left_fringe_width; + int o_right = f->output_data.mac->right_fringe_width; + int o_cols = f->output_data.mac->fringe_cols; + + Lisp_Object left_fringe = Fassq (Qleft_fringe, f->param_alist); + Lisp_Object right_fringe = Fassq (Qright_fringe, f->param_alist); + int left_fringe_width, right_fringe_width; + + if (!NILP (left_fringe)) + left_fringe = Fcdr (left_fringe); + if (!NILP (right_fringe)) + right_fringe = Fcdr (right_fringe); + + left_fringe_width = ((NILP (left_fringe) || !INTEGERP (left_fringe)) ? 8 : + XINT (left_fringe)); + right_fringe_width = ((NILP (right_fringe) || !INTEGERP (right_fringe)) ? 8 : + XINT (right_fringe)); + + if (left_fringe_width || right_fringe_width) + { + int left_wid = left_fringe_width >= 0 ? left_fringe_width : -left_fringe_width; + int right_wid = right_fringe_width >= 0 ? right_fringe_width : -right_fringe_width; + int conf_wid = left_wid + right_wid; + int font_wid = FONT_WIDTH (f->output_data.mac->font); + int cols = (left_wid + right_wid + font_wid-1) / font_wid; + int real_wid = cols * font_wid; + if (left_wid && right_wid) + { + if (left_fringe_width < 0) + { + /* Left fringe width is fixed, adjust right fringe if necessary */ + f->output_data.mac->left_fringe_width = left_wid; + f->output_data.mac->right_fringe_width = real_wid - left_wid; + } + else if (right_fringe_width < 0) + { + /* Right fringe width is fixed, adjust left fringe if necessary */ + f->output_data.mac->left_fringe_width = real_wid - right_wid; + f->output_data.mac->right_fringe_width = right_wid; + } + else + { + /* Adjust both fringes with an equal amount. + Note that we are doing integer arithmetic here, so don't + lose a pixel if the total width is an odd number. */ + int fill = real_wid - conf_wid; + f->output_data.mac->left_fringe_width = left_wid + fill/2; + f->output_data.mac->right_fringe_width = right_wid + fill - fill/2; + } + } + else if (left_fringe_width) + { + f->output_data.mac->left_fringe_width = real_wid; + f->output_data.mac->right_fringe_width = 0; + } + else + { + f->output_data.mac->left_fringe_width = 0; + f->output_data.mac->right_fringe_width = real_wid; + } + f->output_data.mac->fringe_cols = cols; + f->output_data.mac->fringes_extra = real_wid; + } + else + { + f->output_data.mac->left_fringe_width = 0; + f->output_data.mac->right_fringe_width = 0; + f->output_data.mac->fringe_cols = 0; + f->output_data.mac->fringes_extra = 0; + } + + if (redraw && FRAME_VISIBLE_P (f)) + if (o_left != f->output_data.mac->left_fringe_width || + o_right != f->output_data.mac->right_fringe_width || + o_cols != f->output_data.mac->fringe_cols) + redraw_frame (f); +} + +/*********************************************************************** + TODO: W32 Input Methods + ***********************************************************************/ +/* Listing missing functions from xterm.c helps diff stay in step. + +xim_destroy_callback (xim, client_data, call_data) +xim_open_dpy (dpyinfo, resource_name) +struct xim_inst_t +xim_instantiate_callback (display, client_data, call_data) +xim_initialize (dpyinfo, resource_name) +xim_close_dpy (dpyinfo) + + */ + + +/* Calculate the absolute position in frame F + from its current recorded position values and gravity. */ + +void +x_calc_absolute_position (f) + struct frame *f; +{ + Point pt; + int flags = f->output_data.mac->size_hint_flags; + + pt.h = pt.v = 0; + + /* Find the position of the outside upper-left corner of + the inner window, with respect to the outer window. */ + if (f->output_data.mac->parent_desc != FRAME_MAC_DISPLAY_INFO (f)->root_window) + { + GrafPtr savePort; + GetPort (&savePort); + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (FRAME_MAC_WINDOW (f))); +#else + SetPort (FRAME_MAC_WINDOW (f)); +#endif + +#if TARGET_API_MAC_CARBON + { + Rect r; + + GetWindowPortBounds (FRAME_MAC_WINDOW (f), &r); + SetPt(&pt, r.left, r.top); + } +#else /* not TARGET_API_MAC_CARBON */ + SetPt(&pt, FRAME_MAC_WINDOW (f)->portRect.left, FRAME_MAC_WINDOW (f)->portRect.top); +#endif /* not TARGET_API_MAC_CARBON */ + LocalToGlobal (&pt); + SetPort (savePort); + } + + /* Treat negative positions as relative to the leftmost bottommost + position that fits on the screen. */ + if (flags & XNegative) + f->output_data.mac->left_pos = (FRAME_MAC_DISPLAY_INFO (f)->width + - 2 * f->output_data.mac->border_width - pt.h + - PIXEL_WIDTH (f) + + f->output_data.mac->left_pos); + /* NTEMACS_TODO: Subtract menubar height? */ + if (flags & YNegative) + f->output_data.mac->top_pos = (FRAME_MAC_DISPLAY_INFO (f)->height + - 2 * f->output_data.mac->border_width - pt.v + - PIXEL_HEIGHT (f) + + f->output_data.mac->top_pos); + /* The left_pos and top_pos + are now relative to the top and left screen edges, + so the flags should correspond. */ + f->output_data.mac->size_hint_flags &= ~ (XNegative | YNegative); +} + +/* CHANGE_GRAVITY is 1 when calling from Fset_frame_position, + to really change the position, and 0 when calling from + x_make_frame_visible (in that case, XOFF and YOFF are the current + position values). It is -1 when calling from x_set_frame_parameters, + which means, do adjust for borders but don't change the gravity. */ + +void +x_set_offset (f, xoff, yoff, change_gravity) + struct frame *f; + register int xoff, yoff; + int change_gravity; +{ + int modified_top, modified_left; + + if (change_gravity > 0) + { + f->output_data.mac->top_pos = yoff; + f->output_data.mac->left_pos = xoff; + f->output_data.mac->size_hint_flags &= ~ (XNegative | YNegative); + if (xoff < 0) + f->output_data.mac->size_hint_flags |= XNegative; + if (yoff < 0) + f->output_data.mac->size_hint_flags |= YNegative; + f->output_data.mac->win_gravity = NorthWestGravity; + } + x_calc_absolute_position (f); + + BLOCK_INPUT; + x_wm_set_size_hint (f, (long) 0, 0); + + modified_left = f->output_data.mac->left_pos; + modified_top = f->output_data.mac->top_pos; + + MoveWindow (f->output_data.mac->mWP, modified_left + 6, + modified_top + 42, false); + + UNBLOCK_INPUT; +} + +/* Call this to change the size of frame F's x-window. + If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity + for this size change and subsequent size changes. + Otherwise we leave the window gravity unchanged. */ + +void +x_set_window_size (f, change_gravity, cols, rows) + struct frame *f; + int change_gravity; + int cols, rows; +{ + int pixelwidth, pixelheight; + + BLOCK_INPUT; + + check_frame_size (f, &rows, &cols); + f->output_data.mac->vertical_scroll_bar_extra + = (!FRAME_HAS_VERTICAL_SCROLL_BARS (f) + ? 0 + : (FRAME_SCROLL_BAR_COLS (f) * FONT_WIDTH (f->output_data.mac->font))); + + x_compute_fringe_widths (f, 0); + + pixelwidth = CHAR_TO_PIXEL_WIDTH (f, cols); + pixelheight = CHAR_TO_PIXEL_HEIGHT (f, rows); + + f->output_data.mac->win_gravity = NorthWestGravity; + x_wm_set_size_hint (f, (long) 0, 0); + + SizeWindow (FRAME_MAC_WINDOW (f), pixelwidth, pixelheight, 0); + + /* Now, strictly speaking, we can't be sure that this is accurate, + but the window manager will get around to dealing with the size + change request eventually, and we'll hear how it went when the + ConfigureNotify event gets here. + + We could just not bother storing any of this information here, + and let the ConfigureNotify event set everything up, but that + might be kind of confusing to the Lisp code, since size changes + wouldn't be reported in the frame parameters until some random + point in the future when the ConfigureNotify event arrives. + + We pass 1 for DELAY since we can't run Lisp code inside of + a BLOCK_INPUT. */ + change_frame_size (f, rows, cols, 0, 1, 0); + PIXEL_WIDTH (f) = pixelwidth; + PIXEL_HEIGHT (f) = pixelheight; + + /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to + receive in the ConfigureNotify event; if we get what we asked + for, then the event won't cause the screen to become garbaged, so + we have to make sure to do it here. */ + SET_FRAME_GARBAGED (f); + + XFlush (FRAME_X_DISPLAY (f)); + + /* If cursor was outside the new size, mark it as off. */ + mark_window_cursors_off (XWINDOW (f->root_window)); + + /* Clear out any recollection of where the mouse highlighting was, + since it might be in a place that's outside the new frame size. + Actually checking whether it is outside is a pain in the neck, + so don't try--just let the highlighting be done afresh with new size. */ + cancel_mouse_face (f); + + UNBLOCK_INPUT; +} + +/* Mouse warping. */ + +void x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y); + +void +x_set_mouse_position (f, x, y) + struct frame *f; + int x, y; +{ + int pix_x, pix_y; + + pix_x = CHAR_TO_PIXEL_COL (f, x) + FONT_WIDTH (f->output_data.mac->font) / 2; + pix_y = CHAR_TO_PIXEL_ROW (f, y) + f->output_data.mac->line_height / 2; + + if (pix_x < 0) pix_x = 0; + if (pix_x > PIXEL_WIDTH (f)) pix_x = PIXEL_WIDTH (f); + + if (pix_y < 0) pix_y = 0; + if (pix_y > PIXEL_HEIGHT (f)) pix_y = PIXEL_HEIGHT (f); + + x_set_mouse_pixel_position (f, pix_x, pix_y); +} + +void +x_set_mouse_pixel_position (f, pix_x, pix_y) + struct frame *f; + int pix_x, pix_y; +{ +#if 0 /* MAC_TODO: CursorDeviceMoveTo is non-Carbon */ + BLOCK_INPUT; + + XWarpPointer (FRAME_X_DISPLAY (f), None, FRAME_X_WINDOW (f), + 0, 0, 0, 0, pix_x, pix_y); + UNBLOCK_INPUT; +#endif +} + + +/* focus shifting, raising and lowering. */ + +void +x_focus_on_frame (f) + struct frame *f; +{ +#if 0 /* This proves to be unpleasant. */ + x_raise_frame (f); +#endif +#if 0 + /* I don't think that the ICCCM allows programs to do things like this + without the interaction of the window manager. Whatever you end up + doing with this code, do it to x_unfocus_frame too. */ + XSetInputFocus (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + RevertToPointerRoot, CurrentTime); +#endif /* ! 0 */ +} + +void +x_unfocus_frame (f) + struct frame *f; +{ +} + +/* Raise frame F. */ +void +x_raise_frame (f) + struct frame *f; +{ + if (f->async_visible) + SelectWindow (FRAME_MAC_WINDOW (f)); +} + +/* Lower frame F. */ +void +x_lower_frame (f) + struct frame *f; +{ + if (f->async_visible) + SendBehind (FRAME_MAC_WINDOW (f), nil); +} + +static void +XTframe_raise_lower (f, raise_flag) + FRAME_PTR f; + int raise_flag; +{ + if (raise_flag) + x_raise_frame (f); + else + x_lower_frame (f); +} + +/* Change of visibility. */ + +/* This tries to wait until the frame is really visible. + However, if the window manager asks the user where to position + the frame, this will return before the user finishes doing that. + The frame will not actually be visible at that time, + but it will become visible later when the window manager + finishes with it. */ + +void +x_make_frame_visible (f) + struct frame *f; +{ + Lisp_Object type; + int original_top, original_left; + + BLOCK_INPUT; + + if (! FRAME_VISIBLE_P (f)) + { + /* We test FRAME_GARBAGED_P here to make sure we don't + call x_set_offset a second time + if we get to x_make_frame_visible a second time + before the window gets really visible. */ + if (! FRAME_ICONIFIED_P (f) + && ! f->output_data.mac->asked_for_visible) + x_set_offset (f, f->output_data.mac->left_pos, + f->output_data.mac->top_pos, 0); + + f->output_data.mac->asked_for_visible = 1; + + ShowWindow (FRAME_MAC_WINDOW (f)); + } + + XFlush (FRAME_MAC_DISPLAY (f)); + +#if 0 /* MAC_TODO */ + /* Synchronize to ensure Emacs knows the frame is visible + before we do anything else. We do this loop with input not blocked + so that incoming events are handled. */ + { + Lisp_Object frame; + int count; + + /* This must come after we set COUNT. */ + UNBLOCK_INPUT; + + XSETFRAME (frame, f); + + /* Wait until the frame is visible. Process X events until a + MapNotify event has been seen, or until we think we won't get a + MapNotify at all.. */ + for (count = input_signal_count + 10; + input_signal_count < count && !FRAME_VISIBLE_P (f);) + { + /* Force processing of queued events. */ + x_sync (f); + + /* Machines that do polling rather than SIGIO have been + observed to go into a busy-wait here. So we'll fake an + alarm signal to let the handler know that there's something + to be read. We used to raise a real alarm, but it seems + that the handler isn't always enabled here. This is + probably a bug. */ + if (input_polling_used ()) + { + /* It could be confusing if a real alarm arrives while + processing the fake one. Turn it off and let the + handler reset it. */ + extern void poll_for_input_1 P_ ((void)); + int old_poll_suppress_count = poll_suppress_count; + poll_suppress_count = 1; + poll_for_input_1 (); + poll_suppress_count = old_poll_suppress_count; + } + + /* See if a MapNotify event has been processed. */ + FRAME_SAMPLE_VISIBILITY (f); + } + } +#endif /* MAC_TODO */ +} + +/* Change from mapped state to withdrawn state. */ + +/* Make the frame visible (mapped and not iconified). */ + +void +x_make_frame_invisible (f) + struct frame *f; +{ + /* Don't keep the highlight on an invisible frame. */ + if (FRAME_MAC_DISPLAY_INFO (f)->x_highlight_frame == f) + FRAME_MAC_DISPLAY_INFO (f)->x_highlight_frame = 0; + + BLOCK_INPUT; + + HideWindow (FRAME_MAC_WINDOW (f)); + + /* We can't distinguish this from iconification + just by the event that we get from the server. + So we can't win using the usual strategy of letting + FRAME_SAMPLE_VISIBILITY set this. So do it by hand, + and synchronize with the server to make sure we agree. */ + f->visible = 0; + FRAME_ICONIFIED_P (f) = 0; + f->async_visible = 0; + f->async_iconified = 0; + + UNBLOCK_INPUT; +} + +/* Change window state from mapped to iconified. */ + +void +x_iconify_frame (f) + struct frame *f; +{ +#if 0 /* MAC_TODO: really no iconify on Mac */ + int result; + Lisp_Object type; + + /* Don't keep the highlight on an invisible frame. */ + if (FRAME_X_DISPLAY_INFO (f)->x_highlight_frame == f) + FRAME_X_DISPLAY_INFO (f)->x_highlight_frame = 0; + + if (f->async_iconified) + return; + + BLOCK_INPUT; + + FRAME_SAMPLE_VISIBILITY (f); + + type = x_icon_type (f); + if (!NILP (type)) + x_bitmap_icon (f, type); + +#ifdef USE_X_TOOLKIT + + if (! FRAME_VISIBLE_P (f)) + { + if (! EQ (Vx_no_window_manager, Qt)) + x_wm_set_window_state (f, IconicState); + /* This was XtPopup, but that did nothing for an iconified frame. */ + XtMapWidget (f->output_data.x->widget); + /* The server won't give us any event to indicate + that an invisible frame was changed to an icon, + so we have to record it here. */ + f->iconified = 1; + f->visible = 1; + f->async_iconified = 1; + f->async_visible = 0; + UNBLOCK_INPUT; + return; + } + + result = XIconifyWindow (FRAME_X_DISPLAY (f), + XtWindow (f->output_data.x->widget), + DefaultScreen (FRAME_X_DISPLAY (f))); + UNBLOCK_INPUT; + + if (!result) + error ("Can't notify window manager of iconification"); + + f->async_iconified = 1; + f->async_visible = 0; + + + BLOCK_INPUT; + XFlush (FRAME_X_DISPLAY (f)); + UNBLOCK_INPUT; +#else /* not USE_X_TOOLKIT */ + + /* Make sure the X server knows where the window should be positioned, + in case the user deiconifies with the window manager. */ + if (! FRAME_VISIBLE_P (f) && !FRAME_ICONIFIED_P (f)) + x_set_offset (f, f->output_data.x->left_pos, f->output_data.x->top_pos, 0); + + /* Since we don't know which revision of X we're running, we'll use both + the X11R3 and X11R4 techniques. I don't know if this is a good idea. */ + + /* X11R4: send a ClientMessage to the window manager using the + WM_CHANGE_STATE type. */ + { + XEvent message; + + message.xclient.window = FRAME_X_WINDOW (f); + message.xclient.type = ClientMessage; + message.xclient.message_type = FRAME_X_DISPLAY_INFO (f)->Xatom_wm_change_state; + message.xclient.format = 32; + message.xclient.data.l[0] = IconicState; + + if (! XSendEvent (FRAME_X_DISPLAY (f), + DefaultRootWindow (FRAME_X_DISPLAY (f)), + False, + SubstructureRedirectMask | SubstructureNotifyMask, + &message)) + { + UNBLOCK_INPUT_RESIGNAL; + error ("Can't notify window manager of iconification"); + } + } + + /* X11R3: set the initial_state field of the window manager hints to + IconicState. */ + x_wm_set_window_state (f, IconicState); + + if (!FRAME_VISIBLE_P (f)) + { + /* If the frame was withdrawn, before, we must map it. */ + XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); + } + + f->async_iconified = 1; + f->async_visible = 0; + + XFlush (FRAME_X_DISPLAY (f)); + UNBLOCK_INPUT; +#endif /* not USE_X_TOOLKIT */ +#endif /* MAC_TODO */ +} + + +/* Destroy the X window of frame F. */ + +void +x_destroy_window (f) + struct frame *f; +{ + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + + BLOCK_INPUT; + + DisposeWindow (FRAME_MAC_WINDOW (f)); + + free_frame_menubar (f); + free_frame_faces (f); + + xfree (f->output_data.mac); + f->output_data.mac = 0; + if (f == dpyinfo->x_focus_frame) + dpyinfo->x_focus_frame = 0; + if (f == dpyinfo->x_focus_event_frame) + dpyinfo->x_focus_event_frame = 0; + if (f == dpyinfo->x_highlight_frame) + dpyinfo->x_highlight_frame = 0; + + dpyinfo->reference_count--; + + if (f == dpyinfo->mouse_face_mouse_frame) + { + dpyinfo->mouse_face_beg_row + = dpyinfo->mouse_face_beg_col = -1; + dpyinfo->mouse_face_end_row + = dpyinfo->mouse_face_end_col = -1; + dpyinfo->mouse_face_window = Qnil; + dpyinfo->mouse_face_deferred_gc = 0; + dpyinfo->mouse_face_mouse_frame = 0; + } + + UNBLOCK_INPUT; +} + +/* Setting window manager hints. */ + +/* Set the normal size hints for the window manager, for frame F. + FLAGS is the flags word to use--or 0 meaning preserve the flags + that the window now has. + If USER_POSITION is nonzero, we set the USPosition + flag (this is useful when FLAGS is 0). */ +void +x_wm_set_size_hint (f, flags, user_position) + struct frame *f; + long flags; + int user_position; +{ +#if 0 /* MAC_TODO: connect this to the Appearance Manager */ + XSizeHints size_hints; + +#ifdef USE_X_TOOLKIT + Arg al[2]; + int ac = 0; + Dimension widget_width, widget_height; + Window window = XtWindow (f->output_data.x->widget); +#else /* not USE_X_TOOLKIT */ + Window window = FRAME_X_WINDOW (f); +#endif /* not USE_X_TOOLKIT */ + + /* Setting PMaxSize caused various problems. */ + size_hints.flags = PResizeInc | PMinSize /* | PMaxSize */; + + size_hints.x = f->output_data.x->left_pos; + size_hints.y = f->output_data.x->top_pos; + +#ifdef USE_X_TOOLKIT + XtSetArg (al[ac], XtNwidth, &widget_width); ac++; + XtSetArg (al[ac], XtNheight, &widget_height); ac++; + XtGetValues (f->output_data.x->widget, al, ac); + size_hints.height = widget_height; + size_hints.width = widget_width; +#else /* not USE_X_TOOLKIT */ + size_hints.height = PIXEL_HEIGHT (f); + size_hints.width = PIXEL_WIDTH (f); +#endif /* not USE_X_TOOLKIT */ + + size_hints.width_inc = FONT_WIDTH (f->output_data.x->font); + size_hints.height_inc = f->output_data.x->line_height; + size_hints.max_width + = FRAME_X_DISPLAY_INFO (f)->width - CHAR_TO_PIXEL_WIDTH (f, 0); + size_hints.max_height + = FRAME_X_DISPLAY_INFO (f)->height - CHAR_TO_PIXEL_HEIGHT (f, 0); + + /* Calculate the base and minimum sizes. + + (When we use the X toolkit, we don't do it here. + Instead we copy the values that the widgets are using, below.) */ +#ifndef USE_X_TOOLKIT + { + int base_width, base_height; + int min_rows = 0, min_cols = 0; + + base_width = CHAR_TO_PIXEL_WIDTH (f, 0); + base_height = CHAR_TO_PIXEL_HEIGHT (f, 0); + + check_frame_size (f, &min_rows, &min_cols); + + /* The window manager uses the base width hints to calculate the + current number of rows and columns in the frame while + resizing; min_width and min_height aren't useful for this + purpose, since they might not give the dimensions for a + zero-row, zero-column frame. + + We use the base_width and base_height members if we have + them; otherwise, we set the min_width and min_height members + to the size for a zero x zero frame. */ + +#ifdef HAVE_X11R4 + size_hints.flags |= PBaseSize; + size_hints.base_width = base_width; + size_hints.base_height = base_height; + size_hints.min_width = base_width + min_cols * size_hints.width_inc; + size_hints.min_height = base_height + min_rows * size_hints.height_inc; +#else + size_hints.min_width = base_width; + size_hints.min_height = base_height; +#endif + } + + /* If we don't need the old flags, we don't need the old hint at all. */ + if (flags) + { + size_hints.flags |= flags; + goto no_read; + } +#endif /* not USE_X_TOOLKIT */ + + { + XSizeHints hints; /* Sometimes I hate X Windows... */ + long supplied_return; + int value; + +#ifdef HAVE_X11R4 + value = XGetWMNormalHints (FRAME_X_DISPLAY (f), window, &hints, + &supplied_return); +#else + value = XGetNormalHints (FRAME_X_DISPLAY (f), window, &hints); +#endif + +#ifdef USE_X_TOOLKIT + size_hints.base_height = hints.base_height; + size_hints.base_width = hints.base_width; + size_hints.min_height = hints.min_height; + size_hints.min_width = hints.min_width; +#endif + + if (flags) + size_hints.flags |= flags; + else + { + if (value == 0) + hints.flags = 0; + if (hints.flags & PSize) + size_hints.flags |= PSize; + if (hints.flags & PPosition) + size_hints.flags |= PPosition; + if (hints.flags & USPosition) + size_hints.flags |= USPosition; + if (hints.flags & USSize) + size_hints.flags |= USSize; + } + } + +#ifndef USE_X_TOOLKIT + no_read: +#endif + +#ifdef PWinGravity + size_hints.win_gravity = f->output_data.x->win_gravity; + size_hints.flags |= PWinGravity; + + if (user_position) + { + size_hints.flags &= ~ PPosition; + size_hints.flags |= USPosition; + } +#endif /* PWinGravity */ + +#ifdef HAVE_X11R4 + XSetWMNormalHints (FRAME_X_DISPLAY (f), window, &size_hints); +#else + XSetNormalHints (FRAME_X_DISPLAY (f), window, &size_hints); +#endif +#endif /* MAC_TODO */ +} + +#if 0 /* MAC_TODO: hide application instead of iconify? */ +/* Used for IconicState or NormalState */ + +void +x_wm_set_window_state (f, state) + struct frame *f; + int state; +{ +#ifdef USE_X_TOOLKIT + Arg al[1]; + + XtSetArg (al[0], XtNinitialState, state); + XtSetValues (f->output_data.x->widget, al, 1); +#else /* not USE_X_TOOLKIT */ + Window window = FRAME_X_WINDOW (f); + + f->output_data.x->wm_hints.flags |= StateHint; + f->output_data.x->wm_hints.initial_state = state; + + XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints); +#endif /* not USE_X_TOOLKIT */ +} + +void +x_wm_set_icon_pixmap (f, pixmap_id) + struct frame *f; + int pixmap_id; +{ + Pixmap icon_pixmap; + +#ifndef USE_X_TOOLKIT + Window window = FRAME_X_WINDOW (f); +#endif + + if (pixmap_id > 0) + { + icon_pixmap = x_bitmap_pixmap (f, pixmap_id); + f->output_data.x->wm_hints.icon_pixmap = icon_pixmap; + } + else + { + /* It seems there is no way to turn off use of an icon pixmap. + The following line does it, only if no icon has yet been created, + for some window managers. But with mwm it crashes. + Some people say it should clear the IconPixmapHint bit in this case, + but that doesn't work, and the X consortium said it isn't the + right thing at all. Since there is no way to win, + best to explicitly give up. */ +#if 0 + f->output_data.x->wm_hints.icon_pixmap = None; +#else + return; +#endif + } + +#ifdef USE_X_TOOLKIT /* same as in x_wm_set_window_state. */ + + { + Arg al[1]; + XtSetArg (al[0], XtNiconPixmap, icon_pixmap); + XtSetValues (f->output_data.x->widget, al, 1); + } + +#else /* not USE_X_TOOLKIT */ + + f->output_data.x->wm_hints.flags |= IconPixmapHint; + XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints); + +#endif /* not USE_X_TOOLKIT */ +} + +#endif /* MAC_TODO */ + +void +x_wm_set_icon_position (f, icon_x, icon_y) + struct frame *f; + int icon_x, icon_y; +{ +#if 0 /* MAC_TODO: no icons on Mac */ +#ifdef USE_X_TOOLKIT + Window window = XtWindow (f->output_data.x->widget); +#else + Window window = FRAME_X_WINDOW (f); +#endif + + f->output_data.x->wm_hints.flags |= IconPositionHint; + f->output_data.x->wm_hints.icon_x = icon_x; + f->output_data.x->wm_hints.icon_y = icon_y; + + XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints); +#endif /* MAC_TODO */ +} + + +/*********************************************************************** + Fonts + ***********************************************************************/ + +/* Return a pointer to struct font_info of font FONT_IDX of frame F. */ + +struct font_info * +x_get_font_info (f, font_idx) + FRAME_PTR f; + int font_idx; +{ + return (FRAME_MAC_FONT_TABLE (f) + font_idx); +} + +/* the global font name table */ +char **font_name_table = NULL; +int font_name_table_size = 0; +int font_name_count = 0; + +/* compare two strings ignoring case */ +static int +stricmp (const char *s, const char *t) +{ + for ( ; tolower (*s) == tolower (*t); s++, t++) + if (*s == '\0') + return 0; + return tolower (*s) - tolower (*t); +} + +/* compare two strings ignoring case and handling wildcard */ +static int +wildstrieq (char *s1, char *s2) +{ + if (strcmp (s1, "*") == 0 || strcmp (s2, "*") == 0) + return true; + + return stricmp (s1, s2) == 0; +} + +/* Assume parameter 1 is fully qualified, no wildcards. */ +static int +mac_font_pattern_match (fontname, pattern) + char * fontname; + char * pattern; +{ + char *regex = (char *) alloca (strlen (pattern) * 2 + 3); + char *font_name_copy = (char *) alloca (strlen (fontname) + 1); + char *ptr; + + /* Copy fontname so we can modify it during comparison. */ + strcpy (font_name_copy, fontname); + + ptr = regex; + *ptr++ = '^'; + + /* Turn pattern into a regexp and do a regexp match. */ + for (; *pattern; pattern++) + { + if (*pattern == '?') + *ptr++ = '.'; + else if (*pattern == '*') + { + *ptr++ = '.'; + *ptr++ = '*'; + } + else + *ptr++ = *pattern; + } + *ptr = '$'; + *(ptr + 1) = '\0'; + + return (fast_c_string_match_ignore_case (build_string (regex), + font_name_copy) >= 0); +} + +/* Two font specs are considered to match if their foundry, family, + weight, slant, and charset match. */ +static int +mac_font_match (char *mf, char *xf) +{ + char m_foundry[50], m_family[50], m_weight[20], m_slant[2], m_charset[20]; + char x_foundry[50], x_family[50], x_weight[20], x_slant[2], x_charset[20]; + + if (sscanf (mf, "-%49[^-]-%49[^-]-%19[^-]-%1[^-]-%*[^-]--%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%19s", + m_foundry, m_family, m_weight, m_slant, m_charset) != 5) + return mac_font_pattern_match (mf, xf); + + if (sscanf (xf, "-%49[^-]-%49[^-]-%19[^-]-%1[^-]-%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%19s", + x_foundry, x_family, x_weight, x_slant, x_charset) != 5) + return mac_font_pattern_match (mf, xf); + + return (wildstrieq (m_foundry, x_foundry) + && wildstrieq (m_family, x_family) + && wildstrieq (m_weight, x_weight) + && wildstrieq (m_slant, x_slant) + && wildstrieq (m_charset, x_charset)) + || mac_font_pattern_match (mf, xf); +} + + +static char * +mac_to_x_fontname (char *name, int size, Style style, short scriptcode) +{ + char foundry[32], family[32], cs[32]; + char xf[255], *result, *p; + + if (sscanf (name, "%31[^-]-%31[^-]-%31s", foundry, family, cs) != 3) + { + strcpy(foundry, "Apple"); + strcpy(family, name); + + switch (scriptcode) + { + case smTradChinese: + strcpy(cs, "big5-0"); + break; + case smSimpChinese: + strcpy(cs, "gb2312.1980-0"); + break; + case smJapanese: + strcpy(cs, "jisx0208.1983-sjis"); + break; + case -smJapanese: + /* Each Apple Japanese font is entered into the font table + twice: once as a jisx0208.1983-sjis font and once as a + jisx0201.1976-0 font. The latter can be used to display + the ascii charset and katakana-jisx0201 charset. A + negative script code signals that the name of this latter + font is being built. */ + strcpy(cs, "jisx0201.1976-0"); + break; + case smKorean: + strcpy(cs, "ksc5601.1989-0"); + break; + default: + strcpy(cs, "mac-roman"); + break; + } + } + + sprintf(xf, "-%s-%s-%s-%c-normal--%d-%d-75-75-m-%d-%s", + foundry, family, style & bold ? "bold" : "medium", + style & italic ? 'i' : 'r', size, size * 10, size * 10, cs); + + result = (char *) xmalloc (strlen (xf) + 1); + strcpy (result, xf); + for (p = result; *p; p++) + *p = tolower(*p); + return result; +} + + +/* Convert an X font spec to the corresponding mac font name, which + can then be passed to GetFNum after conversion to a Pascal string. + For ordinary Mac fonts, this should just be their names, like + "monaco", "Taipei", etc. Fonts converted from the GNU intlfonts + collection contain their charset designation in their names, like + "ETL-Fixed-iso8859-1", "ETL-Fixed-koi8-r", etc. Both types of font + names are handled accordingly. */ +static void +x_font_name_to_mac_font_name (char *xf, char *mf) +{ + char foundry[32], family[32], weight[20], slant[2], cs[32]; + + strcpy (mf, ""); + + if (sscanf (xf, "-%31[^-]-%31[^-]-%19[^-]-%1[^-]-%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%31s", + foundry, family, weight, slant, cs) != 5 && + sscanf (xf, "-%31[^-]-%31[^-]-%19[^-]-%1[^-]-%*[^-]--%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%31s", + foundry, family, weight, slant, cs) != 5) + return; + + if (strcmp (cs, "big5-0") == 0 || strcmp (cs, "gb2312.1980-0") == 0 + || strcmp (cs, "jisx0208.1983-sjis") == 0 + || strcmp (cs, "jisx0201.1976-0") == 0 + || strcmp (cs, "ksc5601.1989-0") == 0 || strcmp (cs, "mac-roman") == 0) + strcpy(mf, family); + else + sprintf(mf, "%s-%s-%s", foundry, family, cs); +} + + +/* Sets up the table font_name_table to contain the list of all + monospace fonts in the system the first time the table is used so + that the Resource Manager need not be accessed every time this + information is needed. */ + +static void +init_font_name_table () +{ +#if TARGET_API_MAC_CARBON + SInt32 sv; + + if (Gestalt (gestaltSystemVersion, &sv) == noErr && sv >= 0x1000) + { + FMFontFamilyIterator ffi; + FMFontFamilyInstanceIterator ffii; + FMFontFamily ff; + + /* Create a dummy instance iterator here to avoid creating and + destroying it in the loop. */ + if (FMCreateFontFamilyInstanceIterator (0, &ffii) != noErr) + return; + /* Create an iterator to enumerate the font families. */ + if (FMCreateFontFamilyIterator (NULL, NULL, kFMDefaultOptions, &ffi) + != noErr) + { + FMDisposeFontFamilyInstanceIterator (&ffii); + return; + } + + while (FMGetNextFontFamily (&ffi, &ff) == noErr) + { + Str255 name; + FMFont font; + FMFontStyle style; + FMFontSize size; + SInt16 sc; + + if (FMGetFontFamilyName (ff, name) != noErr) + break; + p2cstr (name); + + sc = FontToScript (ff); + + /* Point the instance iterator at the current font family. */ + if (FMResetFontFamilyInstanceIterator(ff, &ffii) != noErr) + break; + + while (FMGetNextFontFamilyInstance (&ffii, &font, &style, &size) + == noErr) + { + if (font_name_table_size == 0) + { + font_name_table_size = 16; + font_name_table = (char **) + xmalloc (font_name_table_size * sizeof (char *)); + } + else if (font_name_count + 1 >= font_name_table_size) + { + font_name_table_size += 16; + font_name_table = (char **) + xrealloc (font_name_table, + font_name_table_size * sizeof (char *)); + } + font_name_table[font_name_count++] + = mac_to_x_fontname (name, size, style, sc); + } + } + + /* Dispose of the iterators. */ + FMDisposeFontFamilyIterator (&ffi); + FMDisposeFontFamilyInstanceIterator (&ffii); + } + else + { +#endif /* TARGET_API_MAC_CARBON */ + GrafPtr port; + SInt16 fontnum, old_fontnum; + int num_mac_fonts = CountResources('FOND'); + int i, j; + Handle font_handle, font_handle_2; + short id, scriptcode; + ResType type; + Str32 name; + struct FontAssoc *fat; + struct AsscEntry *assc_entry; + + GetPort (&port); /* save the current font number used */ +#if TARGET_API_MAC_CARBON + old_fontnum = GetPortTextFont (port); +#else + old_fontnum = port->txFont; +#endif + + for (i = 1; i <= num_mac_fonts; i++) /* get all available fonts */ + { + font_handle = GetIndResource ('FOND', i); + if (!font_handle) + continue; + + GetResInfo (font_handle, &id, &type, name); + GetFNum (name, &fontnum); + p2cstr (name); + if (fontnum == 0) + continue; + + TextFont (fontnum); + scriptcode = FontToScript (fontnum); + do + { + HLock (font_handle); + + if (GetResourceSizeOnDisk (font_handle) + >= sizeof (struct FamRec)) + { + fat = (struct FontAssoc *) (*font_handle + + sizeof (struct FamRec)); + assc_entry + = (struct AsscEntry *) (*font_handle + + sizeof (struct FamRec) + + sizeof (struct FontAssoc)); + + for (j = 0; j <= fat->numAssoc; j++, assc_entry++) + { + if (font_name_table_size == 0) + { + font_name_table_size = 16; + font_name_table = (char **) + xmalloc (font_name_table_size * sizeof (char *)); + } + else if (font_name_count >= font_name_table_size) + { + font_name_table_size += 16; + font_name_table = (char **) + xrealloc (font_name_table, + font_name_table_size * sizeof (char *)); + } + font_name_table[font_name_count++] + = mac_to_x_fontname (name, + assc_entry->fontSize, + assc_entry->fontStyle, + scriptcode); + /* Both jisx0208.1983-sjis and + jisx0201.1976-sjis parts are contained in + Apple Japanese (SJIS) font. */ + if (smJapanese == scriptcode) + { + font_name_table[font_name_count++] + = mac_to_x_fontname (name, + assc_entry->fontSize, + assc_entry->fontStyle, + smRoman); + } + } + } + + HUnlock (font_handle); + font_handle_2 = GetNextFOND (font_handle); + ReleaseResource (font_handle); + font_handle = font_handle_2; + } + while (ResError () == noErr && font_handle); + } + + TextFont (old_fontnum); +#if TARGET_API_MAC_CARBON + } +#endif /* TARGET_API_MAC_CARBON */ +} + + +/* Return a list of at most MAXNAMES font specs matching the one in + PATTERN. Note that each '*' in the PATTERN matches exactly one + field of the font spec, unlike X in which an '*' in a font spec can + match a number of fields. The result is in the Mac implementation + all fonts must be specified by a font spec with all 13 fields + (although many of these can be "*'s"). */ + +Lisp_Object +x_list_fonts (struct frame *f, + Lisp_Object pattern, + int size, + int maxnames) +{ + char *ptnstr; + Lisp_Object newlist = Qnil; + int n_fonts = 0; + int i; + struct gcpro gcpro1, gcpro2; + + if (font_name_table == NULL) /* Initialize when first used. */ + init_font_name_table (); + + ptnstr = XSTRING (pattern)->data; + + GCPRO2 (pattern, newlist); + + /* Scan and matching bitmap fonts. */ + for (i = 0; i < font_name_count; i++) + { + if (mac_font_pattern_match (font_name_table[i], ptnstr)) + { + newlist = Fcons (build_string (font_name_table[i]), newlist); + + n_fonts++; + if (n_fonts >= maxnames) + break; + } + } + + /* MAC_TODO: add code for matching outline fonts here */ + + UNGCPRO; + + return newlist; +} + + +#if GLYPH_DEBUG + +/* Check that FONT is valid on frame F. It is if it can be found in F's + font table. */ + +static void +x_check_font (f, font) + struct frame *f; + XFontStruct *font; +{ + int i; + struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); + + xassert (font != NULL); + + for (i = 0; i < dpyinfo->n_fonts; i++) + if (dpyinfo->font_table[i].name + && font == dpyinfo->font_table[i].font) + break; + + xassert (i < dpyinfo->n_fonts); +} + +#endif /* GLYPH_DEBUG != 0 */ + +/* Set *W to the minimum width, *H to the minimum font height of FONT. + Note: There are (broken) X fonts out there with invalid XFontStruct + min_bounds contents. For example, handa@etl.go.jp reports that + "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1" fonts + have font->min_bounds.width == 0. */ + +static INLINE void +x_font_min_bounds (font, w, h) + MacFontStruct *font; + int *w, *h; +{ + /* + * TODO: Windows does not appear to offer min bound, only + * average and maximum width, and maximum height. + */ + *h = FONT_HEIGHT (font); + *w = FONT_WIDTH (font); +} + + +/* Compute the smallest character width and smallest font height over + all fonts available on frame F. Set the members smallest_char_width + and smallest_font_height in F's x_display_info structure to + the values computed. Value is non-zero if smallest_font_height or + smallest_char_width become smaller than they were before. */ + +int +x_compute_min_glyph_bounds (f) + struct frame *f; +{ + int i; + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + MacFontStruct *font; + int old_width = dpyinfo->smallest_char_width; + int old_height = dpyinfo->smallest_font_height; + + dpyinfo->smallest_font_height = 100000; + dpyinfo->smallest_char_width = 100000; + + for (i = 0; i < dpyinfo->n_fonts; ++i) + if (dpyinfo->font_table[i].name) + { + struct font_info *fontp = dpyinfo->font_table + i; + int w, h; + + font = (MacFontStruct *) fontp->font; + xassert (font != (MacFontStruct *) ~0); + x_font_min_bounds (font, &w, &h); + + dpyinfo->smallest_font_height = min (dpyinfo->smallest_font_height, h); + dpyinfo->smallest_char_width = min (dpyinfo->smallest_char_width, w); + } + + xassert (dpyinfo->smallest_char_width > 0 + && dpyinfo->smallest_font_height > 0); + + return (dpyinfo->n_fonts == 1 + || dpyinfo->smallest_char_width < old_width + || dpyinfo->smallest_font_height < old_height); +} + + +/* Determine whether given string is a fully-specified XLFD: all 14 + fields are present, none is '*'. */ + +static int +is_fully_specified_xlfd (char *p) +{ + int i; + char *q; + + if (*p != '-') + return 0; + + for (i = 0; i < 13; i++) + { + q = strchr (p + 1, '-'); + if (q == NULL) + return 0; + if (q - p == 2 && *(p + 1) == '*') + return 0; + p = q; + } + + if (strchr (p + 1, '-') != NULL) + return 0; + + if (*(p + 1) == '*' && *(p + 2) == '\0') + return 0; + + return 1; +} + + +const int kDefaultFontSize = 9; + + +/* XLoadQueryFont creates and returns an internal representation for a + font in a MacFontStruct struct. There is really no concept + corresponding to "loading" a font on the Mac. But we check its + existence and find the font number and all other information for it + and store them in the returned MacFontStruct. */ + +static MacFontStruct * +XLoadQueryFont (Display *dpy, char *fontname) +{ + int i, size, is_two_byte_font, char_width; + char *name; + GrafPtr port; + SInt16 old_fontnum, old_fontsize; + Style old_fontface; + Str32 mfontname; + SInt16 fontnum; + Style fontface = normal; + MacFontStruct *font; + FontInfo the_fontinfo; + char s_weight[7], c_slant; + + if (is_fully_specified_xlfd (fontname)) + name = fontname; + else + { + for (i = 0; i < font_name_count; i++) + if (mac_font_pattern_match (font_name_table[i], fontname)) + break; + + if (i >= font_name_count) + return NULL; + + name = font_name_table[i]; + } + + GetPort (&port); /* save the current font number used */ +#if TARGET_API_MAC_CARBON + old_fontnum = GetPortTextFont (port); + old_fontsize = GetPortTextSize (port); + old_fontface = GetPortTextFace (port); +#else + old_fontnum = port->txFont; + old_fontsize = port->txSize; + old_fontface = port->txFace; +#endif + + if (sscanf (name, "-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]--%d-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%*s", &size) != 1) + size = kDefaultFontSize; + + if (sscanf (name, "-%*[^-]-%*[^-]-%6[^-]-%*c-%*[^-]--%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%*s", s_weight) == 1) + if (strcmp (s_weight, "bold") == 0) + fontface |= bold; + + if (sscanf (name, "-%*[^-]-%*[^-]-%*[^-]-%c-%*[^-]--%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%*s", &c_slant) == 1) + if (c_slant == 'i') + fontface |= italic; + + x_font_name_to_mac_font_name (name, mfontname); + c2pstr (mfontname); + GetFNum (mfontname, &fontnum); + if (fontnum == 0) + return NULL; + + font = (MacFontStruct *) xmalloc (sizeof (struct MacFontStruct)); + + font->fontname = (char *) xmalloc (strlen (name) + 1); + bcopy (name, font->fontname, strlen (name) + 1); + + font->mac_fontnum = fontnum; + font->mac_fontsize = size; + font->mac_fontface = fontface; + font->mac_scriptcode = FontToScript (fontnum); + + /* Apple Japanese (SJIS) font is listed as both + "*-jisx0208.1983-sjis" (Japanese script) and "*-jisx0201.1976-0" + (Roman script) in init_font_name_table (). The latter should be + treated as a one-byte font. */ + { + char cs[32]; + + if (sscanf (name, + "-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]--%*[^-]-%*[^-]-%*[^-]-%*[^-]-%*c-%*[^-]-%31s", + cs) == 1 + && 0 == strcmp (cs, "mac-roman")) + font->mac_scriptcode = smRoman; + } + + is_two_byte_font = font->mac_scriptcode == smJapanese || + font->mac_scriptcode == smTradChinese || + font->mac_scriptcode == smSimpChinese || + font->mac_scriptcode == smKorean; + + TextFont (fontnum); + TextSize (size); + TextFace (fontface); + + GetFontInfo (&the_fontinfo); + + font->ascent = the_fontinfo.ascent; + font->descent = the_fontinfo.descent; + + font->min_byte1 = 0; + if (is_two_byte_font) + font->max_byte1 = 1; + else + font->max_byte1 = 0; + font->min_char_or_byte2 = 0x20; + font->max_char_or_byte2 = 0xff; + + if (is_two_byte_font) + { + /* Use the width of an "ideographic space" of that font because + the_fontinfo.widMax returns the wrong width for some fonts. */ + switch (font->mac_scriptcode) + { + case smJapanese: + char_width = StringWidth("\p\x81\x40"); + break; + case smTradChinese: + char_width = StringWidth("\p\xa1\x40"); + break; + case smSimpChinese: + char_width = StringWidth("\p\xa1\xa1"); + break; + case smKorean: + char_width = StringWidth("\p\xa1\xa1"); + break; + } + } + else + /* Do this instead of use the_fontinfo.widMax, which incorrectly + returns 15 for 12-point Monaco! */ + char_width = CharWidth ('m'); + + font->max_bounds.rbearing = char_width; + font->max_bounds.lbearing = 0; + font->max_bounds.width = char_width; + font->max_bounds.ascent = the_fontinfo.ascent; + font->max_bounds.descent = the_fontinfo.descent; + + font->min_bounds = font->max_bounds; + + if (is_two_byte_font || CharWidth ('m') == CharWidth ('i')) + font->per_char = NULL; + else + { + font->per_char = (XCharStruct *) + xmalloc (sizeof (XCharStruct) * (0xff - 0x20 + 1)); + { + int c; + + for (c = 0x20; c <= 0xff; c++) + { + font->per_char[c - 0x20] = font->max_bounds; + font->per_char[c - 0x20].width = CharWidth (c); + } + } + } + + TextFont (old_fontnum); /* restore previous font number, size and face */ + TextSize (old_fontsize); + TextFace (old_fontface); + + return font; +} + + +/* Load font named FONTNAME of the size SIZE for frame F, and return a + pointer to the structure font_info while allocating it dynamically. + If SIZE is 0, load any size of font. + If loading is failed, return NULL. */ + +struct font_info * +x_load_font (f, fontname, size) + struct frame *f; + register char *fontname; + int size; +{ + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + Lisp_Object font_names; + + /* Get a list of all the fonts that match this name. Once we + have a list of matching fonts, we compare them against the fonts + we already have by comparing names. */ + font_names = x_list_fonts (f, build_string (fontname), size, 1); + + if (!NILP (font_names)) + { + Lisp_Object tail; + int i; + + for (i = 0; i < dpyinfo->n_fonts; i++) + for (tail = font_names; CONSP (tail); tail = XCDR (tail)) + if (dpyinfo->font_table[i].name + && (!strcmp (dpyinfo->font_table[i].name, + XSTRING (XCAR (tail))->data) + || !strcmp (dpyinfo->font_table[i].full_name, + XSTRING (XCAR (tail))->data))) + return (dpyinfo->font_table + i); + } + + /* Load the font and add it to the table. */ + { + char *full_name; + struct MacFontStruct *font; + struct font_info *fontp; + unsigned long value; + int i; + + /* If we have found fonts by x_list_font, load one of them. If + not, we still try to load a font by the name given as FONTNAME + because XListFonts (called in x_list_font) of some X server has + a bug of not finding a font even if the font surely exists and + is loadable by XLoadQueryFont. */ + if (size > 0 && !NILP (font_names)) + fontname = (char *) XSTRING (XCAR (font_names))->data; + + font = (MacFontStruct *) XLoadQueryFont (FRAME_MAC_DISPLAY (f), fontname); + if (!font) + return NULL; + + /* Find a free slot in the font table. */ + for (i = 0; i < dpyinfo->n_fonts; ++i) + if (dpyinfo->font_table[i].name == NULL) + break; + + /* If no free slot found, maybe enlarge the font table. */ + if (i == dpyinfo->n_fonts + && dpyinfo->n_fonts == dpyinfo->font_table_size) + { + int sz; + dpyinfo->font_table_size = max (16, 2 * dpyinfo->font_table_size); + sz = dpyinfo->font_table_size * sizeof *dpyinfo->font_table; + dpyinfo->font_table + = (struct font_info *) xrealloc (dpyinfo->font_table, sz); + } + + fontp = dpyinfo->font_table + i; + if (i == dpyinfo->n_fonts) + ++dpyinfo->n_fonts; + + /* Now fill in the slots of *FONTP. */ + BLOCK_INPUT; + fontp->font = font; + fontp->font_idx = i; + fontp->name = (char *) xmalloc (strlen (font->fontname) + 1); + bcopy (font->fontname, fontp->name, strlen (font->fontname) + 1); + + fontp->full_name = fontp->name; + + fontp->size = font->max_bounds.width; + fontp->height = FONT_HEIGHT (font); + { + /* For some font, ascent and descent in max_bounds field is + larger than the above value. */ + int max_height = font->max_bounds.ascent + font->max_bounds.descent; + if (max_height > fontp->height) + fontp->height = max_height; + } + + /* The slot `encoding' specifies how to map a character + code-points (0x20..0x7F or 0x2020..0x7F7F) of each charset to + the font code-points (0:0x20..0x7F, 1:0xA0..0xFF), or + (0:0x2020..0x7F7F, 1:0xA0A0..0xFFFF, 3:0x20A0..0x7FFF, + 2:0xA020..0xFF7F). For the moment, we don't know which charset + uses this font. So, we set information in fontp->encoding[1] + which is never used by any charset. If mapping can't be + decided, set FONT_ENCODING_NOT_DECIDED. */ + if (font->mac_scriptcode == smJapanese) + fontp->encoding[1] = 4; + else + { + fontp->encoding[1] + = (font->max_byte1 == 0 + /* 1-byte font */ + ? (font->min_char_or_byte2 < 0x80 + ? (font->max_char_or_byte2 < 0x80 + ? 0 /* 0x20..0x7F */ + : FONT_ENCODING_NOT_DECIDED) /* 0x20..0xFF */ + : 1) /* 0xA0..0xFF */ + /* 2-byte font */ + : (font->min_byte1 < 0x80 + ? (font->max_byte1 < 0x80 + ? (font->min_char_or_byte2 < 0x80 + ? (font->max_char_or_byte2 < 0x80 + ? 0 /* 0x2020..0x7F7F */ + : FONT_ENCODING_NOT_DECIDED) /* 0x2020..0x7FFF */ + : 3) /* 0x20A0..0x7FFF */ + : FONT_ENCODING_NOT_DECIDED) /* 0x20??..0xA0?? */ + : (font->min_char_or_byte2 < 0x80 + ? (font->max_char_or_byte2 < 0x80 + ? 2 /* 0xA020..0xFF7F */ + : FONT_ENCODING_NOT_DECIDED) /* 0xA020..0xFFFF */ + : 1))); /* 0xA0A0..0xFFFF */ + } + +#if 0 /* MAC_TODO: fill these out with more reasonably values */ + fontp->baseline_offset + = (XGetFontProperty (font, dpyinfo->Xatom_MULE_BASELINE_OFFSET, &value) + ? (long) value : 0); + fontp->relative_compose + = (XGetFontProperty (font, dpyinfo->Xatom_MULE_RELATIVE_COMPOSE, &value) + ? (long) value : 0); + fontp->default_ascent + = (XGetFontProperty (font, dpyinfo->Xatom_MULE_DEFAULT_ASCENT, &value) + ? (long) value : 0); +#else + fontp->baseline_offset = 0; + fontp->relative_compose = 0; + fontp->default_ascent = 0; +#endif + + /* Set global flag fonts_changed_p to non-zero if the font loaded + has a character with a smaller width than any other character + before, or if the font loaded has a smalle>r height than any + other font loaded before. If this happens, it will make a + glyph matrix reallocation necessary. */ + fonts_changed_p = x_compute_min_glyph_bounds (f); + UNBLOCK_INPUT; + return fontp; + } +} + + +/* Return a pointer to struct font_info of a font named FONTNAME for + frame F. If no such font is loaded, return NULL. */ + +struct font_info * +x_query_font (f, fontname) + struct frame *f; + register char *fontname; +{ + struct mac_display_info *dpyinfo = FRAME_MAC_DISPLAY_INFO (f); + int i; + + for (i = 0; i < dpyinfo->n_fonts; i++) + if (dpyinfo->font_table[i].name + && (!strcmp (dpyinfo->font_table[i].name, fontname) + || !strcmp (dpyinfo->font_table[i].full_name, fontname))) + return (dpyinfo->font_table + i); + return NULL; +} + + +/* Find a CCL program for a font specified by FONTP, and set the member + `encoder' of the structure. */ + +void +x_find_ccl_program (fontp) + struct font_info *fontp; +{ + Lisp_Object list, elt; + + for (list = Vfont_ccl_encoder_alist; CONSP (list); list = XCDR (list)) + { + elt = XCAR (list); + if (CONSP (elt) + && STRINGP (XCAR (elt)) + && (fast_c_string_match_ignore_case (XCAR (elt), fontp->name) + >= 0)) + break; + } + if (! NILP (list)) + { + struct ccl_program *ccl + = (struct ccl_program *) xmalloc (sizeof (struct ccl_program)); + + if (setup_ccl_program (ccl, XCDR (elt)) < 0) + xfree (ccl); + else + fontp->font_encoder = ccl; + } +} + + + +/*********************************************************************** + Initialization + ***********************************************************************/ + +#ifdef USE_X_TOOLKIT +static XrmOptionDescRec emacs_options[] = { + {"-geometry", ".geometry", XrmoptionSepArg, NULL}, + {"-iconic", ".iconic", XrmoptionNoArg, (XtPointer) "yes"}, + + {"-internal-border-width", "*EmacsScreen.internalBorderWidth", + XrmoptionSepArg, NULL}, + {"-ib", "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL}, + + {"-T", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, + {"-wn", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, + {"-title", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, + {"-iconname", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, + {"-in", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, + {"-mc", "*pointerColor", XrmoptionSepArg, (XtPointer) NULL}, + {"-cr", "*cursorColor", XrmoptionSepArg, (XtPointer) NULL} +}; +#endif /* USE_X_TOOLKIT */ + +static int x_initialized; + +#ifdef MULTI_KBOARD +/* Test whether two display-name strings agree up to the dot that separates + the screen number from the server number. */ +static int +same_x_server (name1, name2) + char *name1, *name2; +{ + int seen_colon = 0; + unsigned char *system_name = XSTRING (Vsystem_name)->data; + int system_name_length = strlen (system_name); + int length_until_period = 0; + + while (system_name[length_until_period] != 0 + && system_name[length_until_period] != '.') + length_until_period++; + + /* Treat `unix' like an empty host name. */ + if (! strncmp (name1, "unix:", 5)) + name1 += 4; + if (! strncmp (name2, "unix:", 5)) + name2 += 4; + /* Treat this host's name like an empty host name. */ + if (! strncmp (name1, system_name, system_name_length) + && name1[system_name_length] == ':') + name1 += system_name_length; + if (! strncmp (name2, system_name, system_name_length) + && name2[system_name_length] == ':') + name2 += system_name_length; + /* Treat this host's domainless name like an empty host name. */ + if (! strncmp (name1, system_name, length_until_period) + && name1[length_until_period] == ':') + name1 += length_until_period; + if (! strncmp (name2, system_name, length_until_period) + && name2[length_until_period] == ':') + name2 += length_until_period; + + for (; *name1 != '\0' && *name1 == *name2; name1++, name2++) + { + if (*name1 == ':') + seen_colon++; + if (seen_colon && *name1 == '.') + return 1; + } + return (seen_colon + && (*name1 == '.' || *name1 == '\0') + && (*name2 == '.' || *name2 == '\0')); +} +#endif + + +/* The Mac Event loop code */ + +#ifndef MAC_OSX +#include <Events.h> +#include <Quickdraw.h> +#include <Balloons.h> +#include <Devices.h> +#include <Fonts.h> +#include <Gestalt.h> +#include <Menus.h> +#include <Processes.h> +#include <Sound.h> +#include <ToolUtils.h> +#include <TextUtils.h> +#include <Dialogs.h> +#include <Script.h> +#include <Types.h> +#include <TextEncodingConverter.h> +#include <Resources.h> + +#if __MWERKS__ +#include <unix.h> +#endif +#endif /* ! MAC_OSX */ + +#define M_APPLE 128 +#define I_ABOUT 1 + +#define WINDOW_RESOURCE 128 +#define TERM_WINDOW_RESOURCE 129 + +#define DEFAULT_NUM_COLS 80 + +#define MIN_DOC_SIZE 64 +#define MAX_DOC_SIZE 32767 + +/* sleep time for WaitNextEvent */ +#define WNE_SLEEP_AT_SUSPEND 10 +#define WNE_SLEEP_AT_RESUME 1 + +/* true when cannot handle any Mac OS events */ +static int handling_window_update = 0; + +/* the flag appl_is_suspended is used both for determining the sleep + time to be passed to WaitNextEvent and whether the cursor should be + drawn when updating the display. The cursor is turned off when + Emacs is suspended. Redrawing it is unnecessary and what needs to + be done depends on whether the cursor lies inside or outside the + redraw region. So we might as well skip drawing it when Emacs is + suspended. */ +static Boolean app_is_suspended = false; +static long app_sleep_time = WNE_SLEEP_AT_RESUME; + +#define EXTRA_STACK_ALLOC (256 * 1024) + +#define ARGV_STRING_LIST_ID 129 +#define ABOUT_ALERT_ID 128 +#define RAM_TOO_LARGE_ALERT_ID 129 + +Boolean terminate_flag = false; + +/* true if using command key as meta key */ +Lisp_Object Vmac_command_key_is_meta; + +/* convert input from Mac keyboard (assumed to be in Mac Roman coding) + to this text encoding */ +int mac_keyboard_text_encoding; +int current_mac_keyboard_text_encoding = kTextEncodingMacRoman; + +/* Set in term/mac-win.el to indicate that event loop can now generate + drag and drop events. */ +Lisp_Object Qmac_ready_for_drag_n_drop; + +Lisp_Object drag_and_drop_file_list; + +Point saved_menu_event_location; + +/* Apple Events */ +static void init_required_apple_events(void); +static pascal OSErr +do_ae_open_application(const AppleEvent *, AppleEvent *, long); +static pascal OSErr +do_ae_print_documents(const AppleEvent *, AppleEvent *, long); +static pascal OSErr do_ae_open_documents(AppleEvent *, AppleEvent *, long); +static pascal OSErr do_ae_quit_application(AppleEvent *, AppleEvent *, long); + +extern void init_emacs_passwd_dir (); +extern int emacs_main (int, char **, char **); +extern void check_alarm (); + +extern void initialize_applescript(); +extern void terminate_applescript(); + + +static void +do_get_menus (void) +{ + Handle menubar_handle; + MenuHandle menu_handle; + + menubar_handle = GetNewMBar (128); + if(menubar_handle == NULL) + abort (); + SetMenuBar (menubar_handle); + DrawMenuBar (); + + menu_handle = GetMenuHandle (M_APPLE); + if(menu_handle != NULL) + AppendResMenu (menu_handle,'DRVR'); + else + abort (); +} + + +static void +do_init_managers (void) +{ +#if !TARGET_API_MAC_CARBON + InitGraf (&qd.thePort); + InitFonts (); + FlushEvents (everyEvent, 0); + InitWindows (); + InitMenus (); + TEInit (); + InitDialogs (NULL); +#endif /* !TARGET_API_MAC_CARBON */ + InitCursor (); + +#if !TARGET_API_MAC_CARBON + /* set up some extra stack space for use by emacs */ + SetApplLimit ((Ptr) ((long) GetApplLimit () - EXTRA_STACK_ALLOC)); + + /* MaxApplZone must be called for AppleScript to execute more + complicated scripts */ + MaxApplZone (); + MoreMasters (); +#endif /* !TARGET_API_MAC_CARBON */ +} + +static void +do_check_ram_size (void) +{ + SInt32 physical_ram_size, logical_ram_size; + + if (Gestalt (gestaltPhysicalRAMSize, &physical_ram_size) != noErr + || Gestalt (gestaltLogicalRAMSize, &logical_ram_size) != noErr + || physical_ram_size > 256 * 1024 * 1024 + || logical_ram_size > 256 * 1024 * 1024) + { + StopAlert (RAM_TOO_LARGE_ALERT_ID, NULL); + exit (1); + } +} + +static void +do_window_update (WindowPtr win) +{ + struct mac_output *mwp = (mac_output *) GetWRefCon (win); + struct frame *f = mwp->mFP; + + if (f) + { + if (f->async_visible == 0) + { + f->async_visible = 1; + f->async_iconified = 0; + SET_FRAME_GARBAGED (f); + + /* An update event is equivalent to MapNotify on X, so report + visibility changes properly. */ + if (! NILP(Vframe_list) && ! NILP (XCDR (Vframe_list))) + /* Force a redisplay sooner or later to update the + frame titles in case this is the second frame. */ + record_asynch_buffer_change (); + } + else + { + BeginUpdate (win); + handling_window_update = 1; + + expose_frame (f, 0, 0, 0, 0); + + handling_window_update = 0; + EndUpdate (win); + } + } +} + +static int +is_emacs_window (WindowPtr win) +{ + Lisp_Object tail, frame; + + if (!win) + return 0; + + FOR_EACH_FRAME (tail, frame) + if (FRAME_MAC_P (XFRAME (frame))) + if (FRAME_MAC_WINDOW (XFRAME (frame)) == win) + return 1; + + return 0; +} + +static void +do_window_activate (WindowPtr win) +{ + mac_output *mwp; + struct frame *f; + + if (is_emacs_window (win)) + { + mwp = (mac_output *) GetWRefCon (win); + f = mwp->mFP; + + if (f) + { + x_new_focus_frame (FRAME_MAC_DISPLAY_INFO (f), f); + activate_scroll_bars (f); + } + } +} + +static void +do_window_deactivate (WindowPtr win) +{ + mac_output *mwp; + struct frame *f; + + if (is_emacs_window (win)) + { + mwp = (mac_output *) GetWRefCon (win); + f = mwp->mFP; + + if (f == FRAME_MAC_DISPLAY_INFO (f)->x_focus_frame) + { + x_new_focus_frame (FRAME_MAC_DISPLAY_INFO (f), 0); + deactivate_scroll_bars (f); + } + } +} + +static void +do_app_resume () +{ + WindowPtr wp; + mac_output *mwp; + struct frame *f; + + wp = FrontWindow(); + if (is_emacs_window (wp)) + { + mwp = (mac_output *) GetWRefCon (wp); + f = mwp->mFP; + + if (f) + { + x_new_focus_frame (FRAME_MAC_DISPLAY_INFO (f), f); + activate_scroll_bars (f); + } + } + + app_is_suspended = false; + app_sleep_time = WNE_SLEEP_AT_RESUME; +} + +static void +do_app_suspend () +{ + WindowPtr wp; + mac_output *mwp; + struct frame *f; + + wp = FrontWindow(); + if (is_emacs_window (wp)) + { + mwp = (mac_output *) GetWRefCon (wp); + f = mwp->mFP; + + if (f == FRAME_MAC_DISPLAY_INFO (f)->x_focus_frame) + { + x_new_focus_frame (FRAME_MAC_DISPLAY_INFO (f), 0); + deactivate_scroll_bars (f); + } + } + + app_is_suspended = true; + app_sleep_time = WNE_SLEEP_AT_SUSPEND; +} + + +static void +do_mouse_moved (Point mouse_pos) +{ + WindowPtr wp = FrontWindow (); + struct frame *f = ((mac_output *) GetWRefCon (wp))->mFP; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (wp)); +#else + SetPort (wp); +#endif + + GlobalToLocal (&mouse_pos); + + note_mouse_movement (f, &mouse_pos); +} + + +static void +do_os_event (EventRecord *erp) +{ + switch((erp->message >> 24) & 0x000000FF) + { + case suspendResumeMessage: + if((erp->message & resumeFlag) == 1) + do_app_resume (); + else + do_app_suspend (); + break; + + case mouseMovedMessage: + do_mouse_moved (erp->where); + break; + } +} + +static void +do_events (EventRecord *erp) +{ + switch (erp->what) + { + case updateEvt: + do_window_update ((WindowPtr) erp->message); + break; + + case osEvt: + do_os_event (erp); + break; + + case activateEvt: + if ((erp->modifiers & activeFlag) != 0) + do_window_activate ((WindowPtr) erp->message); + else + do_window_deactivate ((WindowPtr) erp->message); + break; + } +} + +static void +do_apple_menu (SInt16 menu_item) +{ +#if !TARGET_API_MAC_CARBON + Str255 item_name; + SInt16 da_driver_refnum; + + if (menu_item == I_ABOUT) + NoteAlert (ABOUT_ALERT_ID, NULL); + else + { + GetMenuItemText (GetMenuHandle (M_APPLE), menu_item, item_name); + da_driver_refnum = OpenDeskAcc (item_name); + } +#endif /* !TARGET_API_MAC_CARBON */ +} + +void +do_menu_choice (SInt32 menu_choice) +{ + SInt16 menu_id, menu_item; + + menu_id = HiWord (menu_choice); + menu_item = LoWord (menu_choice); + + if (menu_id == 0) + return; + + switch (menu_id) + { + case M_APPLE: + do_apple_menu (menu_item); + break; + + default: + { + WindowPtr wp = FrontWindow (); + struct frame *f = ((mac_output *) GetWRefCon (wp))->mFP; + MenuHandle menu = GetMenuHandle (menu_id); + if (menu) + { + UInt32 refcon; + + GetMenuItemRefCon (menu, menu_item, &refcon); + menubar_selection_callback (f, refcon); + } + } + } + + HiliteMenu (0); +} + + +/* Handle drags in size box. Based on code contributed by Ben + Mesander and IM - Window Manager A. */ + +static void +do_grow_window (WindowPtr w, EventRecord *e) +{ + long grow_size; + Rect limit_rect; + int rows, columns; + mac_output *mwp = (mac_output *) GetWRefCon (w); + struct frame *f = mwp->mFP; + + SetRect(&limit_rect, MIN_DOC_SIZE, MIN_DOC_SIZE, MAX_DOC_SIZE, MAX_DOC_SIZE); + + grow_size = GrowWindow (w, e->where, &limit_rect); + + /* see if it really changed size */ + if (grow_size != 0) + { + rows = PIXEL_TO_CHAR_HEIGHT (f, HiWord (grow_size)); + columns = PIXEL_TO_CHAR_WIDTH (f, LoWord (grow_size)); + + x_set_window_size (f, 0, columns, rows); + } +} + + +/* Handle clicks in zoom box. Calculation of "standard state" based + on code in IM - Window Manager A and code contributed by Ben + Mesander. The standard state of an Emacs window is 80-characters + wide (DEFAULT_NUM_COLS) and as tall as will fit on the screen. */ + +static void +do_zoom_window (WindowPtr w, int zoom_in_or_out) +{ + GrafPtr save_port; + Rect zoom_rect, port_rect; + Point top_left; + int w_title_height, columns, rows, width, height, dummy, x, y; + mac_output *mwp = (mac_output *) GetWRefCon (w); + struct frame *f = mwp->mFP; + + GetPort (&save_port); + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (w)); +#else + SetPort (w); +#endif + + /* Clear window to avoid flicker. */ +#if TARGET_API_MAC_CARBON + { + Rect r; + BitMap bm; + + GetWindowPortBounds (w, &r); + EraseRect (&r); + + if (zoom_in_or_out == inZoomOut) + { + /* calculate height of window's title bar (hard card it for now). */ + w_title_height = 20 + GetMBarHeight (); + + /* get maximum height of window into zoom_rect.bottom - + zoom_rect.top */ + GetQDGlobalsScreenBits (&bm); + zoom_rect = bm.bounds; + zoom_rect.top += w_title_height; + InsetRect (&zoom_rect, 8, 4); /* not too tight */ + + zoom_rect.right = zoom_rect.left + + CHAR_TO_PIXEL_WIDTH (f, DEFAULT_NUM_COLS); + + SetWindowStandardState (w, &zoom_rect); + } + } +#else /* not TARGET_API_MAC_CARBON */ + EraseRect (&(w->portRect)); + if (zoom_in_or_out == inZoomOut) + { + SetPt (&top_left, w->portRect.left, w->portRect.top); + LocalToGlobal (&top_left); + + /* calculate height of window's title bar */ + w_title_height = top_left.v - 1 + - (**((WindowPeek) w)->strucRgn).rgnBBox.top + GetMBarHeight (); + + /* get maximum height of window into zoom_rect.bottom - zoom_rect.top */ + zoom_rect = qd.screenBits.bounds; + zoom_rect.top += w_title_height; + InsetRect (&zoom_rect, 8, 4); /* not too tight */ + + zoom_rect.right = zoom_rect.left + + CHAR_TO_PIXEL_WIDTH (f, DEFAULT_NUM_COLS); + + (**((WStateDataHandle) ((WindowPeek) w)->dataHandle)).stdState + = zoom_rect; + } +#endif /* not TARGET_API_MAC_CARBON */ + + ZoomWindow (w, zoom_in_or_out, w == FrontWindow ()); + + /* retrieve window size and update application values */ +#if TARGET_API_MAC_CARBON + GetWindowPortBounds (w, &port_rect); +#else + port_rect = w->portRect; +#endif + rows = PIXEL_TO_CHAR_HEIGHT (f, port_rect.bottom - port_rect.top); + columns = PIXEL_TO_CHAR_WIDTH (f, port_rect.right - port_rect.left); + x_set_window_size (mwp->mFP, 0, columns, rows); + + SetPort (save_port); +} + + +/* Intialize AppleEvent dispatcher table for the required events. */ +void +init_required_apple_events () +{ + OSErr err; + long result; + + /* Make sure we have apple events before starting. */ + err = Gestalt (gestaltAppleEventsAttr, &result); + if (err != noErr) + abort (); + + if (!(result & (1 << gestaltAppleEventsPresent))) + abort (); + +#if TARGET_API_MAC_CARBON + err = AEInstallEventHandler(kCoreEventClass, kAEOpenApplication, + NewAEEventHandlerUPP + ((AEEventHandlerProcPtr) do_ae_open_application), + 0L, false); +#else + err = AEInstallEventHandler(kCoreEventClass, kAEOpenApplication, + NewAEEventHandlerProc + ((AEEventHandlerProcPtr) do_ae_open_application), + 0L, false); +#endif + if (err != noErr) + abort (); + +#if TARGET_API_MAC_CARBON + err = AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments, + NewAEEventHandlerUPP + ((AEEventHandlerProcPtr) do_ae_open_documents), + 0L, false); +#else + err = AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments, + NewAEEventHandlerProc + ((AEEventHandlerProcPtr) do_ae_open_documents), + 0L, false); +#endif + if (err != noErr) + abort (); + +#if TARGET_API_MAC_CARBON + err = AEInstallEventHandler(kCoreEventClass, kAEPrintDocuments, + NewAEEventHandlerUPP + ((AEEventHandlerProcPtr) do_ae_print_documents), + 0L, false); +#else + err = AEInstallEventHandler(kCoreEventClass, kAEPrintDocuments, + NewAEEventHandlerProc + ((AEEventHandlerProcPtr) do_ae_print_documents), + 0L, false); +#endif + if (err != noErr) + abort (); + +#if TARGET_API_MAC_CARBON + err = AEInstallEventHandler(kCoreEventClass, kAEQuitApplication, + NewAEEventHandlerUPP + ((AEEventHandlerProcPtr) do_ae_quit_application), + 0L, false); +#else + err = AEInstallEventHandler(kCoreEventClass, kAEQuitApplication, + NewAEEventHandlerProc + ((AEEventHandlerProcPtr) do_ae_quit_application), + 0L, false); +#endif + if (err != noErr) + abort (); +} + + +/* Open Application Apple Event */ +static pascal OSErr +do_ae_open_application(const AppleEvent *pae, AppleEvent *preply, long prefcon) +{ + return noErr; +} + + +/* Defined in mac.c. */ +extern int +path_from_vol_dir_name (char *, int, short, long, char *); + + +/* Called when we receive an AppleEvent with an ID of + "kAEOpenDocuments". This routine gets the direct parameter, + extracts the FSSpecs in it, and puts their names on a list. */ +static pascal OSErr +do_ae_open_documents(AppleEvent *message, AppleEvent *reply, long refcon) +{ + OSErr err, err2; + AEDesc the_desc; + AEKeyword keyword; + DescType actual_type; + Size actual_size; + + err = AEGetParamDesc (message, keyDirectObject, typeAEList, &the_desc); + if (err != noErr) + goto descriptor_error_exit; + + /* Check to see that we got all of the required parameters from the + event descriptor. For an 'odoc' event this should just be the + file list. */ + err = AEGetAttributePtr(message, keyMissedKeywordAttr, typeWildCard, + &actual_type, (Ptr) &keyword, + sizeof (keyword), &actual_size); + /* No error means that we found some unused parameters. + errAEDescNotFound means that there are no more parameters. If we + get an error code other than that, flag it. */ + if ((err == noErr) || (err != errAEDescNotFound)) + { + err = errAEEventNotHandled; + goto error_exit; + } + err = noErr; + + /* Got all the parameters we need. Now, go through the direct + object list and parse it up. */ + { + long num_files_to_open; + + err = AECountItems (&the_desc, &num_files_to_open); + if (err == noErr) + { + int i; + + /* AE file list is one based so just use that for indexing here. */ + for (i = 1; (err == noErr) && (i <= num_files_to_open); i++) { + FSSpec fs; + Str255 path_name, unix_path_name; + + err = AEGetNthPtr(&the_desc, i, typeFSS, &keyword, &actual_type, + (Ptr) &fs, sizeof (fs), &actual_size); + if (err != noErr) break; + + if (path_from_vol_dir_name (path_name, 255, fs.vRefNum, fs.parID, + fs.name) && + mac_to_posix_pathname (path_name, unix_path_name, 255)) + drag_and_drop_file_list = Fcons (build_string (unix_path_name), + drag_and_drop_file_list); + } + } + } + +error_exit: + /* Nuke the coerced file list in any case */ + err2 = AEDisposeDesc(&the_desc); + +descriptor_error_exit: + /* InvalRect(&(gFrontMacWindowP->mWP->portRect)); */ + return err; +} + + +/* Print Document Apple Event */ +static pascal OSErr +do_ae_print_documents (const AppleEvent *pAE, AppleEvent *reply, long refcon) +{ + return errAEEventNotHandled; +} + + +static pascal OSErr +do_ae_quit_application (AppleEvent* message, AppleEvent *reply, long refcon) +{ + /* FixMe: Do we need an unwind-protect or something here? And what + do we do about unsaved files. Currently just forces quit rather + than doing recursive callback to get user input. */ + + terminate_flag = true; + + /* Fkill_emacs doesn't return. We have to return. (TI) */ + return noErr; +} + + +#if __profile__ +void +profiler_exit_proc () +{ + ProfilerDump ("\pEmacs.prof"); + ProfilerTerm (); +} +#endif + +/* These few functions implement Emacs as a normal Mac application + (almost): set up the heap and the Toolbox, handle necessary + system events plus a few simple menu events. They also set up + Emacs's access to functions defined in the rest of this file. + Emacs uses function hooks to perform all its terminal I/O. A + complete list of these functions appear in termhooks.h. For what + they do, read the comments there and see also w32term.c and + xterm.c. What's noticeably missing here is the event loop, which + is normally present in most Mac application. After performing the + necessary Mac initializations, main passes off control to + emacs_main (corresponding to main in emacs.c). Emacs_main calls + mac_read_socket (defined further below) to read input. This is + where WaitNextEvent is called to process Mac events. This is also + where check_alarm in sysdep.c is called to simulate alarm signals. + This makes the cursor jump back to its correct position after + briefly jumping to that of the matching parenthesis, print useful + hints and prompts in the minibuffer after the user stops typing for + a wait, etc. */ + +#if !TARGET_API_MAC_CARBON +#undef main +int +main (void) +{ +#if __profile__ /* is the profiler on? */ + if (ProfilerInit(collectDetailed, bestTimeBase, 5000, 200)) + exit(1); +#endif + +#if __MWERKS__ + /* set creator and type for files created by MSL */ + _fcreator = 'EMAx'; + _ftype = 'TEXT'; +#endif + + do_init_managers (); + + do_get_menus (); + + do_check_ram_size (); + + init_emacs_passwd_dir (); + + init_environ (); + + initialize_applescript (); + + init_required_apple_events (); + + { + char **argv; + int argc = 0; + + /* set up argv array from STR# resource */ + get_string_list (&argv, ARGV_STRING_LIST_ID); + while (argv[argc]) + argc++; + + /* free up AppleScript resources on exit */ + atexit (terminate_applescript); + +#if __profile__ /* is the profiler on? */ + atexit (profiler_exit_proc); +#endif + + /* 3rd param "envp" never used in emacs_main */ + (void) emacs_main (argc, argv, 0); + } + + /* Never reached - real exit in Fkill_emacs */ + return 0; +} +#endif + +/* Table for translating Mac keycode to X keysym values. Contributed + by Sudhir Shenoy. */ +static unsigned char keycode_to_xkeysym_table[] = { +/* 0x00 - 0x3f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +/* 0x40 */ + 0, '\xae' /* kp. */, 0, '\xaa' /* kp* */, + 0, '\xab' /* kp+ */, 0, '\x7f' /* kp_clr */, + 0, 0, 0, '\xaf' /* kp/ */, + '\x8d' /* kp_ent */, 0, '\xad' /* kp- */, 0, +/* 0x50 */ + 0, '\xbd' /* kp= */, '\xb0' /* kp0 */, '\xb1' /* kp1 */, + '\xb2' /* kp2 */, '\xb3' /* kp3 */, '\xb4' /* kp4 */, '\xb5' /* kp5 */, + '\xb6' /* kp6 */, '\xb7' /* kp7 */, 0, '\xb8' /* kp8 */, + '\xb9' /* kp9 */, 0, 0, 0, +/* 0x60 */ + '\xc2' /* F5 */, '\xc3' /* F6 */, '\xc4' /* F7 */, '\xc0' /* F3 */, + '\xc5' /* F8 */, '\xc6' /* F9 */, 0, '\xc8' /* F11 */, + 0, '\xca' /* F13 */, 0, '\xcb' /* F14 */, + 0, '\xc7' /* F10 */, 0, '\xc9' /* F12 */, +/* 0x70 */ + 0, '\xcc' /* F15 */, '\x9e' /* ins */, '\x95' /* home */, + '\x9a' /* pgup */, '\x9f' /* del */, '\xc1' /* F4 */, '\x9c' /* end */, + '\xbf' /* F2 */, '\x9b' /* pgdown */, '\xbe' /* F1 */, '\x51' /* left */, + '\x53' /* right */, '\x54' /* down */, '\x52' /* up */, 0 +}; + +static int +keycode_to_xkeysym (int keyCode, int *xKeySym) +{ + *xKeySym = keycode_to_xkeysym_table [keyCode & 0x7f]; + return *xKeySym != 0; +} + +/* Emacs calls this whenever it wants to read an input event from the + user. */ +int +XTread_socket (int sd, struct input_event *bufp, int numchars, int expected) +{ + int count = 0; + EventRecord er; + int the_modifiers; + EventMask event_mask; + +#if 0 + if (interrupt_input_blocked) + { + interrupt_input_pending = 1; + return -1; + } +#endif + + interrupt_input_pending = 0; + BLOCK_INPUT; + + /* So people can tell when we have read the available input. */ + input_signal_count++; + + if (numchars <= 0) + abort (); + + /* Don't poll for events to process (specifically updateEvt) if + window update currently already in progress. A call to redisplay + (in do_window_update) can be preempted by another call to + redisplay, causing blank regions to be left on the screen and the + cursor to be left at strange places. */ + if (handling_window_update) + { + UNBLOCK_INPUT; + return 0; + } + + if (terminate_flag) + Fkill_emacs (make_number (1)); + + /* It is necessary to set this (additional) argument slot of an + event to nil because keyboard.c protects incompletely processed + event from being garbage collected by placing them in the + kbd_buffer_gcpro vector. */ + bufp->arg = Qnil; + + event_mask = everyEvent; + if (NILP (Fboundp (Qmac_ready_for_drag_n_drop))) + event_mask -= highLevelEventMask; + + while (WaitNextEvent (event_mask, &er, 0L, NULL) && numchars > 0) + switch (er.what) + { + case mouseDown: + case mouseUp: + { + WindowPtr window_ptr = FrontWindow (); + SInt16 part_code; + + if (mouse_tracking_in_progress == mouse_tracking_scroll_bar + && er.what == mouseUp) + { + struct mac_output *mwp = (mac_output *) GetWRefCon (window_ptr); + Point mouse_loc = er.where; + + /* Convert to local coordinates of new window. */ +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (window_ptr)); +#else + SetPort (window_ptr); +#endif + + GlobalToLocal (&mouse_loc); + + bufp->code = 0; /* only one mouse button */ + bufp->kind = scroll_bar_click; + bufp->frame_or_window = tracked_scroll_bar->window; + bufp->part = scroll_bar_handle; + bufp->modifiers = up_modifier; + bufp->timestamp = er.when * (1000 / 60); + /* ticks to milliseconds */ + + XSETINT (bufp->x, tracked_scroll_bar->left + 2); + XSETINT (bufp->y, mouse_loc.v - 24); + tracked_scroll_bar->dragging = Qnil; + mouse_tracking_in_progress = mouse_tracking_none; + tracked_scroll_bar = NULL; + count++; + bufp++; + numchars--; + break; + } + + part_code = FindWindow (er.where, &window_ptr); + + switch (part_code) + { + case inMenuBar: + { + struct frame *f = ((mac_output *) + GetWRefCon (FrontWindow ()))->mFP; + saved_menu_event_location = er.where; + bufp->kind = menu_bar_activate_event; + XSETFRAME (bufp->frame_or_window, f); + count++; + bufp++; + numchars--; + } + break; + + case inContent: + if (window_ptr != FrontWindow ()) + SelectWindow (window_ptr); + else + { + SInt16 control_part_code; + ControlHandle ch; + struct mac_output *mwp = (mac_output *) + GetWRefCon (window_ptr); + Point mouse_loc = er.where; + + /* convert to local coordinates of new window */ +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (window_ptr)); +#else + SetPort (window_ptr); +#endif + + GlobalToLocal (&mouse_loc); +#if TARGET_API_MAC_CARBON + ch = FindControlUnderMouse (mouse_loc, window_ptr, + &control_part_code); +#else + control_part_code = FindControl (mouse_loc, window_ptr, &ch); +#endif + bufp->code = 0; /* only one mouse button */ + XSETINT (bufp->x, mouse_loc.h); + XSETINT (bufp->y, mouse_loc.v); + bufp->timestamp = er.when * (1000 / 60); + /* ticks to milliseconds */ + +#if TARGET_API_MAC_CARBON + if (ch != 0) +#else + if (control_part_code != 0) +#endif + { + struct scroll_bar *bar = (struct scroll_bar *) + GetControlReference (ch); + x_scroll_bar_handle_click (bar, control_part_code, &er, + bufp); + if (er.what == mouseDown + && control_part_code == kControlIndicatorPart) + { + mouse_tracking_in_progress + = mouse_tracking_scroll_bar; + tracked_scroll_bar = bar; + } + else + { + mouse_tracking_in_progress = mouse_tracking_none; + tracked_scroll_bar = NULL; + } + } + else + { + bufp->kind = mouse_click; + XSETFRAME (bufp->frame_or_window, mwp->mFP); + if (er.what == mouseDown) + mouse_tracking_in_progress + = mouse_tracking_mouse_movement; + else + mouse_tracking_in_progress = mouse_tracking_none; + } + + switch (er.what) + { + case mouseDown: + bufp->modifiers = down_modifier; + break; + case mouseUp: + bufp->modifiers = up_modifier; + break; + } + + count++; + bufp++; + numchars--; + } + break; + + case inDrag: +#if TARGET_API_MAC_CARBON + { + BitMap bm; + + GetQDGlobalsScreenBits (&bm); + DragWindow (window_ptr, er.where, &bm.bounds); + } +#else /* not TARGET_API_MAC_CARBON */ + DragWindow (window_ptr, er.where, &qd.screenBits.bounds); +#endif /* not TARGET_API_MAC_CARBON */ + break; + + case inGoAway: + if (TrackGoAway (window_ptr, er.where)) + { + bufp->kind = delete_window_event; + XSETFRAME (bufp->frame_or_window, + ((mac_output *) GetWRefCon (window_ptr))->mFP); + count++; + bufp++; + numchars--; + } + break; + + /* window resize handling added --ben */ + case inGrow: + do_grow_window(window_ptr, &er); + break; + + /* window zoom handling added --ben */ + case inZoomIn: + case inZoomOut: + if (TrackBox (window_ptr, er.where, part_code)) + do_zoom_window (window_ptr, part_code); + break; + + default: + break; + } + } + break; + + case updateEvt: + case osEvt: + case activateEvt: + do_events (&er); + break; + + case keyDown: + case autoKey: + { + int keycode = (er.message & keyCodeMask) >> 8; + int xkeysym; + + ObscureCursor (); + + if (keycode == 0x33) /* delete key (charCode translated to 0x8) */ + { + bufp->code = 0x7f; + bufp->kind = ascii_keystroke; + } + else if (keycode_to_xkeysym (keycode, &xkeysym)) + { + bufp->code = 0xff00 | xkeysym; + bufp->kind = non_ascii_keystroke; + } + else + { + if (er.modifiers + & (NILP (Vmac_command_key_is_meta) ? optionKey : cmdKey)) + { + /* This code comes from Keyboard Resource, Appendix + C of IM - Text. This is necessary since shift is + ignored in KCHR table translation when option or + command is pressed. */ + int new_modifiers = er.modifiers & 0xf600; + /* mask off option and command */ + int new_keycode = keycode | new_modifiers; + Ptr kchr_ptr = (Ptr) GetScriptManagerVariable (smKCHRCache); + unsigned long some_state = 0; + bufp->code = KeyTranslate (kchr_ptr, new_keycode, + &some_state) & 0xff; + } + else + bufp->code = er.message & charCodeMask; + bufp->kind = ascii_keystroke; + } + } + + /* If variable mac-convert-keyboard-input-to-latin-1 is non-nil, + convert non-ASCII characters typed at the Mac keyboard + (presumed to be in the Mac Roman encoding) to iso-latin-1 + encoding before they are passed to Emacs. This enables the + Mac keyboard to be used to enter non-ASCII iso-latin-1 + characters directly. */ + if (mac_keyboard_text_encoding != kTextEncodingMacRoman + && bufp->kind == ascii_keystroke && bufp->code >= 128) + { + static TECObjectRef converter = NULL; + OSStatus the_err = noErr; + OSStatus convert_status = noErr; + + if (converter == NULL) + { + the_err = TECCreateConverter (&converter, + kTextEncodingMacRoman, + mac_keyboard_text_encoding); + current_mac_keyboard_text_encoding + = mac_keyboard_text_encoding; + } + else if (mac_keyboard_text_encoding + != current_mac_keyboard_text_encoding) + { + /* Free the converter for the current encoding before + creating a new one. */ + TECDisposeConverter (converter); + the_err = TECCreateConverter (&converter, + kTextEncodingMacRoman, + mac_keyboard_text_encoding); + current_mac_keyboard_text_encoding + = mac_keyboard_text_encoding; + } + + if (the_err == noErr) + { + unsigned char ch = bufp->code; + ByteCount actual_input_length, actual_output_length; + unsigned char outch; + + convert_status = TECConvertText (converter, &ch, 1, + &actual_input_length, + &outch, 1, + &actual_output_length); + if (convert_status == noErr + && actual_input_length == 1 + && actual_output_length == 1) + bufp->code = outch; + } + } + + the_modifiers = 0; + if (er.modifiers & shiftKey) + the_modifiers |= shift_modifier; + if (er.modifiers & controlKey) + the_modifiers |= ctrl_modifier; + /* use option or command key as meta depending on value of + mac-command-key-is-meta */ + if (er.modifiers + & (NILP (Vmac_command_key_is_meta) ? optionKey : cmdKey)) + the_modifiers |= meta_modifier; + bufp->modifiers = the_modifiers; + + { + mac_output *mwp = (mac_output *) GetWRefCon (FrontWindow ()); + XSETFRAME (bufp->frame_or_window, mwp->mFP); + } + + bufp->timestamp = er.when * (1000 / 60); /* ticks to milliseconds */ + + count++; + bufp++; + numchars--; + break; + + case kHighLevelEvent: + drag_and_drop_file_list = Qnil; + + AEProcessAppleEvent(&er); + + /* Build a drag_n_drop type event as is done in + constuct_drag_n_drop in w32term.c. */ + if (!NILP (drag_and_drop_file_list)) + { + struct frame *f; + WindowPtr wp; + Lisp_Object frame; + + wp = FrontWindow (); + if (!wp) + f = NULL; + else + f = ((mac_output *) GetWRefCon (wp))->mFP; + + bufp->kind = drag_n_drop; + bufp->code = 0; + bufp->timestamp = er.when * (1000 / 60); + /* ticks to milliseconds */ + bufp->modifiers = 0; + + XSETINT (bufp->x, 0); + XSETINT (bufp->y, 0); + + XSETFRAME (frame, f); + bufp->frame_or_window = Fcons (frame, drag_and_drop_file_list); + + /* Regardless of whether Emacs was suspended or in the + foreground, ask it to redraw its entire screen. + Otherwise parts of the screen can be left in an + inconsistent state. */ + if (wp) +#if TARGET_API_MAC_CARBON + { + Rect r; + + GetWindowPortBounds (wp, &r); + InvalWindowRect (wp, &r); + } +#else /* not TARGET_API_MAC_CARBON */ + InvalRect (&(wp->portRect)); +#endif /* not TARGET_API_MAC_CARBON */ + + count++; + bufp++; + numchars--; + } + + default: + break; + } + + /* If the focus was just given to an autoraising frame, + raise it now. */ + /* ??? This ought to be able to handle more than one such frame. */ + if (pending_autoraise_frame) + { + x_raise_frame (pending_autoraise_frame); + pending_autoraise_frame = 0; + } + +#if !TARGET_API_MAC_CARBON + check_alarm (); /* simulate the handling of a SIGALRM */ +#endif + + { + static Point old_mouse_pos = { -1, -1 }; + + if (app_is_suspended) + { + old_mouse_pos.h = -1; + old_mouse_pos.v = -1; + } + else + { + Point mouse_pos; + WindowPtr wp; + struct frame *f; + Lisp_Object bar; + struct scroll_bar *sb; + + wp = FrontWindow (); + if (is_emacs_window (wp)) + { + f = ((mac_output *) GetWRefCon (wp))->mFP; + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (wp)); +#else + SetPort (wp); +#endif + + GetMouse (&mouse_pos); + + if (!EqualPt (mouse_pos, old_mouse_pos)) + { + if (mouse_tracking_in_progress == mouse_tracking_scroll_bar + && tracked_scroll_bar) + x_scroll_bar_note_movement (tracked_scroll_bar, + mouse_pos.v + - XINT (tracked_scroll_bar->top), + TickCount() * (1000 / 60)); + else + note_mouse_movement (f, &mouse_pos); + + old_mouse_pos = mouse_pos; + } + } + } + } + + UNBLOCK_INPUT; + + return count; +} + + +/* Need to override CodeWarrior's input function so no conversion is + done on newlines Otherwise compiled functions in .elc files will be + read incorrectly. Defined in ...:MSL C:MSL + Common:Source:buffer_io.c. */ +#ifdef __MWERKS__ +void +__convert_to_newlines (unsigned char * p, size_t * n) +{ +#pragma unused(p,n) +} + +void +__convert_from_newlines (unsigned char * p, size_t * n) +{ +#pragma unused(p,n) +} +#endif + + +/* Initialize the struct pointed to by MW to represent a new COLS x + ROWS Macintosh window, using font with name FONTNAME and size + FONTSIZE. */ +void +NewMacWindow (FRAME_PTR fp) +{ + mac_output *mwp; +#if TARGET_API_MAC_CARBON + static int making_terminal_window = 0; +#else + static int making_terminal_window = 1; +#endif + + mwp = fp->output_data.mac; + + if (making_terminal_window) + { + if (!(mwp->mWP = GetNewCWindow (TERM_WINDOW_RESOURCE, NULL, + (WindowPtr) -1))) + abort (); + making_terminal_window = 0; + } + else + if (!(mwp->mWP = GetNewCWindow (WINDOW_RESOURCE, NULL, (WindowPtr) -1))) + abort (); + + + SetWRefCon (mwp->mWP, (long) mwp); + /* so that update events can find this mac_output struct */ + mwp->mFP = fp; /* point back to emacs frame */ + +#if TARGET_API_MAC_CARBON + SetPort (GetWindowPort (mwp->mWP)); +#else + SetPort (mwp->mWP); +#endif + + mwp->fontset = -1; + + SizeWindow (mwp->mWP, mwp->pixel_width, mwp->pixel_height, false); + ShowWindow (mwp->mWP); + +} + + +void make_mac_frame (struct frame *f) +{ + FRAME_CAN_HAVE_SCROLL_BARS (f) = 1; + FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_right; + + NewMacWindow(f); + FRAME_BACKGROUND_PIXEL (f) = 0xffffff; + FRAME_FOREGROUND_PIXEL (f) = 0; + + f->output_data.mac->cursor_pixel = 0; + f->output_data.mac->border_pixel = 0x00ff00; + f->output_data.mac->mouse_pixel = 0xff00ff; + f->output_data.mac->cursor_foreground_pixel = 0x0000ff; + + f->output_data.mac->desired_cursor = FILLED_BOX_CURSOR; + + f->output_data.mac->fontset = -1; + f->output_data.mac->scroll_bar_foreground_pixel = -1; + f->output_data.mac->scroll_bar_background_pixel = -1; + f->output_data.mac->left_pos = 4; + f->output_data.mac->top_pos = 4; + f->output_data.mac->border_width = 0; + f->output_data.mac->explicit_parent = 0; + + f->output_data.mac->internal_border_width = 0; + + f->output_method = output_mac; + + f->auto_raise = 1; + f->auto_lower = 1; + + f->new_width = 0; + f->new_height = 0; +} + +void make_mac_terminal_frame (struct frame *f) +{ + Lisp_Object frame; + + XSETFRAME (frame, f); + + f->output_method = output_mac; + f->output_data.mac = (struct mac_output *) + xmalloc (sizeof (struct mac_output)); + bzero (f->output_data.mac, sizeof (struct mac_output)); + f->output_data.mac->fontset = -1; + f->output_data.mac->scroll_bar_foreground_pixel = -1; + f->output_data.mac->scroll_bar_background_pixel = -1; + + XSETFRAME (FRAME_KBOARD (f)->Vdefault_minibuffer_frame, f); + + f->width = 96; + f->height = 4; + + make_mac_frame (f); + + x_make_gc (f); + + /* Need to be initialized for unshow_buffer in window.c. */ + selected_window = f->selected_window; + + Fmodify_frame_parameters (frame, + Fcons (Fcons (Qfont, + build_string ("-*-monaco-medium-r-*--*-90-*-*-*-*-mac-roman")), Qnil)); + Fmodify_frame_parameters (frame, + Fcons (Fcons (Qforeground_color, + build_string ("black")), Qnil)); + Fmodify_frame_parameters (frame, + Fcons (Fcons (Qbackground_color, + build_string ("white")), Qnil)); +} + + +/*********************************************************************** + Initialization + ***********************************************************************/ + +#ifdef USE_X_TOOLKIT +static XrmOptionDescRec emacs_options[] = { + {"-geometry", ".geometry", XrmoptionSepArg, NULL}, + {"-iconic", ".iconic", XrmoptionNoArg, (XtPointer) "yes"}, + + {"-internal-border-width", "*EmacsScreen.internalBorderWidth", + XrmoptionSepArg, NULL}, + {"-ib", "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL}, + + {"-T", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, + {"-wn", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, + {"-title", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, + {"-iconname", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, + {"-in", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, + {"-mc", "*pointerColor", XrmoptionSepArg, (XtPointer) NULL}, + {"-cr", "*cursorColor", XrmoptionSepArg, (XtPointer) NULL} +}; +#endif /* USE_X_TOOLKIT */ + +#ifdef MULTI_KBOARD +/* Test whether two display-name strings agree up to the dot that separates + the screen number from the server number. */ +static int +same_x_server (name1, name2) + char *name1, *name2; +{ + int seen_colon = 0; + unsigned char *system_name = XSTRING (Vsystem_name)->data; + int system_name_length = strlen (system_name); + int length_until_period = 0; + + while (system_name[length_until_period] != 0 + && system_name[length_until_period] != '.') + length_until_period++; + + /* Treat `unix' like an empty host name. */ + if (! strncmp (name1, "unix:", 5)) + name1 += 4; + if (! strncmp (name2, "unix:", 5)) + name2 += 4; + /* Treat this host's name like an empty host name. */ + if (! strncmp (name1, system_name, system_name_length) + && name1[system_name_length] == ':') + name1 += system_name_length; + if (! strncmp (name2, system_name, system_name_length) + && name2[system_name_length] == ':') + name2 += system_name_length; + /* Treat this host's domainless name like an empty host name. */ + if (! strncmp (name1, system_name, length_until_period) + && name1[length_until_period] == ':') + name1 += length_until_period; + if (! strncmp (name2, system_name, length_until_period) + && name2[length_until_period] == ':') + name2 += length_until_period; + + for (; *name1 != '\0' && *name1 == *name2; name1++, name2++) + { + if (*name1 == ':') + seen_colon++; + if (seen_colon && *name1 == '.') + return 1; + } + return (seen_colon + && (*name1 == '.' || *name1 == '\0') + && (*name2 == '.' || *name2 == '\0')); +} +#endif + +int mac_initialized = 0; + +void +mac_initialize_display_info () +{ + struct mac_display_info *dpyinfo = &one_mac_display_info; + GDHandle main_device_handle; + + bzero (dpyinfo, sizeof (*dpyinfo)); + + /* Put it on x_display_name_list. */ + x_display_name_list = Fcons (Fcons (build_string ("Mac"), Qnil), + x_display_name_list); + dpyinfo->name_list_element = XCAR (x_display_name_list); + +#if 0 + dpyinfo->mac_id_name + = (char *) xmalloc (XSTRING (Vinvocation_name)->size + + XSTRING (Vsystem_name)->size + + 2); + sprintf (dpyinfo->mac_id_name, "%s@%s", + XSTRING (Vinvocation_name)->data, XSTRING (Vsystem_name)->data); +#else + dpyinfo->mac_id_name = (char *) xmalloc (strlen ("Mac Display") + 1); + strcpy (dpyinfo->mac_id_name, "Mac Display"); +#endif + + main_device_handle = LMGetMainDevice(); + + dpyinfo->reference_count = 0; + dpyinfo->resx = 75.0; + dpyinfo->resy = 75.0; + dpyinfo->n_planes = 1; + dpyinfo->n_cbits = 16; + dpyinfo->height = (**main_device_handle).gdRect.bottom; + dpyinfo->width = (**main_device_handle).gdRect.right; + dpyinfo->grabbed = 0; + dpyinfo->root_window = NULL; + + dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; + dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; + dpyinfo->mouse_face_face_id = DEFAULT_FACE_ID; + dpyinfo->mouse_face_window = Qnil; +} + +struct mac_display_info * +mac_term_init (display_name, xrm_option, resource_name) + Lisp_Object display_name; + char *xrm_option; + char *resource_name; +{ + struct mac_display_info *dpyinfo; + GDHandle main_device_handle; + + if (!mac_initialized) + { + mac_initialize (); + mac_initialized = 1; + } + + mac_initialize_display_info (display_name); + + dpyinfo = &one_mac_display_info; + + main_device_handle = LMGetMainDevice(); + + dpyinfo->height = (**main_device_handle).gdRect.bottom; + dpyinfo->width = (**main_device_handle).gdRect.right; + + return dpyinfo; +} + +/* Set up use of X before we make the first connection. */ + +static struct redisplay_interface x_redisplay_interface = +{ + x_produce_glyphs, + x_write_glyphs, + x_insert_glyphs, + x_clear_end_of_line, + x_scroll_run, + x_after_update_window_line, + x_update_window_begin, + x_update_window_end, + XTcursor_to, + x_flush, + x_clear_mouse_face, + x_get_glyph_overhangs, + x_fix_overlapping_area +}; + +void +mac_initialize () +{ + rif = &x_redisplay_interface; + + clear_frame_hook = x_clear_frame; + ins_del_lines_hook = x_ins_del_lines; + delete_glyphs_hook = x_delete_glyphs; + ring_bell_hook = XTring_bell; + reset_terminal_modes_hook = XTreset_terminal_modes; + set_terminal_modes_hook = XTset_terminal_modes; + update_begin_hook = x_update_begin; + update_end_hook = x_update_end; + set_terminal_window_hook = XTset_terminal_window; + read_socket_hook = XTread_socket; + frame_up_to_date_hook = XTframe_up_to_date; + mouse_position_hook = XTmouse_position; + frame_rehighlight_hook = XTframe_rehighlight; + frame_raise_lower_hook = XTframe_raise_lower; + + set_vertical_scroll_bar_hook = XTset_vertical_scroll_bar; + condemn_scroll_bars_hook = XTcondemn_scroll_bars; + redeem_scroll_bar_hook = XTredeem_scroll_bar; + judge_scroll_bars_hook = XTjudge_scroll_bars; + + estimate_mode_line_height_hook = x_estimate_mode_line_height; + + scroll_region_ok = 1; /* we'll scroll partial frames */ + char_ins_del_ok = 1; + line_ins_del_ok = 1; /* we'll just blt 'em */ + fast_clear_end_of_line = 1; /* X does this well */ + memory_below_frame = 0; /* we don't remember what scrolls + off the bottom */ + baud_rate = 19200; + + x_noop_count = 0; + last_tool_bar_item = -1; + any_help_event_p = 0; + + /* Try to use interrupt input; if we can't, then start polling. */ + Fset_input_mode (Qt, Qnil, Qt, Qnil); + +#ifdef USE_X_TOOLKIT + XtToolkitInitialize (); + Xt_app_con = XtCreateApplicationContext (); + XtAppSetFallbackResources (Xt_app_con, Xt_default_resources); + + /* Install an asynchronous timer that processes Xt timeout events + every 0.1s. This is necessary because some widget sets use + timeouts internally, for example the LessTif menu bar, or the + Xaw3d scroll bar. When Xt timouts aren't processed, these + widgets don't behave normally. */ + { + EMACS_TIME interval; + EMACS_SET_SECS_USECS (interval, 0, 100000); + start_atimer (ATIMER_CONTINUOUS, interval, x_process_timeouts, 0); + } +#endif + +#if USE_TOOLKIT_SCROLL_BARS + xaw3d_arrow_scroll = False; + xaw3d_pick_top = True; +#endif + +#if 0 + /* Note that there is no real way portable across R3/R4 to get the + original error handler. */ + XSetErrorHandler (x_error_handler); + XSetIOErrorHandler (x_io_error_quitter); + + /* Disable Window Change signals; they are handled by X events. */ +#ifdef SIGWINCH + signal (SIGWINCH, SIG_DFL); +#endif /* ! defined (SIGWINCH) */ + + signal (SIGPIPE, x_connection_signal); +#endif + + mac_initialize_display_info (); +} + + +void +syms_of_macterm () +{ +#if 0 + staticpro (&x_error_message_string); + x_error_message_string = Qnil; +#endif + + staticpro (&x_display_name_list); + x_display_name_list = Qnil; + + staticpro (&last_mouse_scroll_bar); + last_mouse_scroll_bar = Qnil; + + staticpro (&Qvendor_specific_keysyms); + Qvendor_specific_keysyms = intern ("vendor-specific-keysyms"); + + staticpro (&last_mouse_press_frame); + last_mouse_press_frame = Qnil; + + Qmac_ready_for_drag_n_drop = intern ("mac-ready-for-drag-n-drop"); + staticpro (&Qmac_ready_for_drag_n_drop); + + help_echo = Qnil; + staticpro (&help_echo); + help_echo_object = Qnil; + staticpro (&help_echo_object); + help_echo_window = Qnil; + staticpro (&help_echo_window); + previous_help_echo = Qnil; + staticpro (&previous_help_echo); + help_echo_pos = -1; + + DEFVAR_BOOL ("x-autoselect-window", &x_autoselect_window_p, + doc: /* *Non-nil means autoselect window with mouse pointer. */); + x_autoselect_window_p = 0; + + DEFVAR_BOOL ("x-stretch-cursor", &x_stretch_cursor_p, + doc: /* *Non-nil means draw block cursor as wide as the glyph under it. +For example, if a block cursor is over a tab, it will be drawn as +wide as that tab on the display. */); + x_stretch_cursor_p = 0; + +#if 0 /* TODO: Setting underline position from font properties. */ + DEFVAR_BOOL ("x-use-underline-position-properties", + &x_use_underline_position_properties, + doc: /* *Non-nil means make use of UNDERLINE_POSITION font properties. +nil means ignore them. If you encounter fonts with bogus +UNDERLINE_POSITION font properties, for example 7x13 on XFree prior +to 4.1, set this to nil. */); + x_use_underline_position_properties = 1; +#endif + + DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars, + doc: /* If not nil, Emacs uses toolkit scroll bars. */); + Vx_toolkit_scroll_bars = Qt; + + staticpro (&last_mouse_motion_frame); + last_mouse_motion_frame = Qnil; + + DEFVAR_LISP ("mac-command-key-is-meta", &Vmac_command_key_is_meta, + doc: /* Non-nil means that the command key is used as the Emacs meta key. +Otherwise the option key is used. */); + Vmac_command_key_is_meta = Qt; + + DEFVAR_INT ("mac-keyboard-text-encoding", &mac_keyboard_text_encoding, + doc: /* One of the Text Encoding Base constant values defined in the +Basic Text Constants section of Inside Macintosh - Text Encoding +Conversion Manager. Its value determines the encoding characters +typed at the Mac keyboard (presumed to be in the MacRoman encoding) +will convert into. E.g., if it is set to kTextEncodingMacRoman (0), +its default value, no conversion takes place. If it is set to +kTextEncodingISOLatin1 (0x201) or kTextEncodingISOLatin2 (0x202), +characters typed on Mac keyboard are first converted into the +ISO Latin-1 or ISO Latin-2 encoding, respectively before being +passed to Emacs. Together with Emacs's set-keyboard-coding-system +command, this enables the Mac keyboard to be used to enter non-ASCII +characters directly. */); + mac_keyboard_text_encoding = kTextEncodingMacRoman; +} |