diff options
| author | Jason Rumney <jasonr@gnu.org> | 2000-01-23 03:16:32 +0000 |
|---|---|---|
| committer | Jason Rumney <jasonr@gnu.org> | 2000-01-23 03:16:32 +0000 |
| commit | f6e15a141af6df6e131192649af6bbbb98f4761a (patch) | |
| tree | 6f1777390bead412f158245e1f921badc187f5f1 | |
| parent | 8c2ac482fb3aa53529d5c69c6b7b6306e0901932 (diff) | |
| download | emacs-f6e15a141af6df6e131192649af6bbbb98f4761a.tar.gz | |
Complete rewrite based on xfaces.c
| -rw-r--r-- | src/w32faces.c | 6726 |
1 files changed, 5982 insertions, 744 deletions
diff --git a/src/w32faces.c b/src/w32faces.c index 1a13c28f11a..e0bdefa6493 100644 --- a/src/w32faces.c +++ b/src/w32faces.c @@ -1,5 +1,5 @@ -/* "Face" primitives on the Microsoft W32 API. - Copyright (C) 1993, 1994, 1995, 1999 Free Software Foundation. +/* xfaces.c -- "Face" primitives. + Copyright (C) 1993, 1994, 1998, 1999 Free Software Foundation. This file is part of GNU Emacs. @@ -18,312 +18,837 @@ 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. */ -/* Ported xfaces.c for w32 - Kevin Gallo */ +/* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ + +/* Faces. + + When using Emacs with X, the display style of characters can be + changed by defining `faces'. Each face can specify the following + display attributes: + + 1. Font family or fontset alias name. + + 2. Relative proportionate width, aka character set width or set + width (swidth), e.g. `semi-compressed'. + + 3. Font height in 1/10pt + + 4. Font weight, e.g. `bold'. + + 5. Font slant, e.g. `italic'. + + 6. Foreground color. + + 7. Background color. + + 8. Whether or not characters should be underlined, and in what color. + + 9. Whether or not characters should be displayed in inverse video. + + 10. A background stipple, a bitmap. + + 11. Whether or not characters should be overlined, and in what color. + + 12. Whether or not characters should be strike-through, and in what + color. + + 13. Whether or not a box should be drawn around characters, the box + type, and, for simple boxes, in what color. + + Faces are frame-local by nature because Emacs allows to define the + same named face (face names are symbols) differently for different + frames. Each frame has an alist of face definitions for all named + faces. The value of a named face in such an alist is a Lisp vector + with the symbol `face' in slot 0, and a slot for each each of the + face attributes mentioned above. + + There is also a global face alist `Vface_new_frame_defaults'. Face + definitions from this list are used to initialize faces of newly + created frames. + + A face doesn't have to specify all attributes. Those not specified + have a value of `unspecified'. Faces specifying all attributes are + called `fully-specified'. + + + Face merging. + + The display style of a given character in the text is determined by + combining several faces. This process is called `face merging'. + Any aspect of the display style that isn't specified by overlays or + text properties is taken from the `default' face. Since it is made + sure that the default face is always fully-specified, face merging + always results in a fully-specified face. + + + Face realization. + + After all face attributes for a character have been determined by + merging faces of that character, that face is `realized'. The + realization process maps face attributes to what is physically + available on the system where Emacs runs. The result is a + `realized face' in form of a struct face which is stored in the + face cache of the frame on which it was realized. + + Face realization is done in the context of the charset of the + character to display because different fonts and encodings are used + for different charsets. In other words, for characters of + different charsets, different realized faces are needed to display + them. + + Faces are always realized for a specific character set and contain + a specific font, even if the face being realized specifies a + fontset (see `font selection' below). The reason is that the + result of the new font selection stage is better than what can be + done with statically defined font name patterns in fontsets. + + + Unibyte text. + + In unibyte text, Emacs' charsets aren't applicable; function + `char-charset' reports CHARSET_ASCII for all characters, including + those > 0x7f. The X registry and encoding of fonts to use is + determined from the variable `x-unibyte-registry-and-encoding' in + this case. The variable is initialized at Emacs startup time from + the font the user specified for Emacs. + + Currently all unibyte text, i.e. all buffers with + enable_multibyte_characters nil are displayed with fonts of the + same registry and encoding `x-unibyte-registry-and-encoding'. This + is consistent with the fact that languages can also be set + globally, only. + + + Font selection. + + Font selection tries to find the best available matching font for a + given (charset, face) combination. This is done slightly + differently for faces specifying a fontset, or a font family name. + + If the face specifies a fontset alias name, that fontset determines + a pattern for fonts of the given charset. If the face specifies a + font family, a font pattern is constructed. Charset symbols have a + property `x-charset-registry' for that purpose that maps a charset + to an XLFD registry and encoding in the font pattern constructed. + + Available fonts on the system on which Emacs runs are then matched + against the font pattern. The result of font selection is the best + match for the given face attributes in this font list. + + Font selection can be influenced by the user. + + 1. The user can specify the relative importance he gives the face + attributes width, height, weight, and slant by setting + face-font-selection-order (faces.el) to a list of face attribute + names. The default is '(:width :height :weight :slant), and means + that font selection first tries to find a good match for the font + width specified by a face, then---within fonts with that + width---tries to find a best match for the specified font height, + etc. + + 2. Setting face-alternative-font-family-alist allows the user to + specify alternative font families to try if a family specified by a + face doesn't exist. + + + Composite characters. + + Realized faces for composite characters are the only ones having a + fontset id >= 0. When a composite character is encoded into a + sequence of non-composite characters (in xterm.c), a suitable font + for the non-composite characters is then selected and realized, + i.e. the realization process is delayed but in principle the same. + + + Initialization of basic faces. + + The faces `default', `modeline' are considered `basic faces'. + When redisplay happens the first time for a newly created frame, + basic faces are realized for CHARSET_ASCII. Frame parameters are + used to fill in unspecified attributes of the default face. */ + +/* Define SCALABLE_FONTS to a non-zero value to enable scalable + font use. Define it to zero to disable scalable font use. + + Use of too many or too large scalable fonts can crash XFree86 + servers. That's why I've put the code dealing with scalable fonts + in #if's. */ + +#define SCALABLE_FONTS 1 #include <config.h> #include <sys/types.h> #include <sys/stat.h> - #include "lisp.h" - +#include "charset.h" +#include "frame.h" #include "w32term.h" +#include "fontset.h" #include "buffer.h" #include "dispextern.h" -#include "frame.h" #include "blockinput.h" #include "window.h" #include "intervals.h" -#include "charset.h" -#include "fontset.h" - -/* An explanation of the face data structures. */ - -/* ========================= Face Data Structures ========================= - - Let FACE-NAME be a symbol naming a face. - - Let FACE-VECTOR be (assq FACE-NAME (frame-face-alist FRAME)) - FACE-VECTOR is either nil, or a vector of the form - [face NAME ID FONT FOREGROUND BACKGROUND BACKGROUND-PIXMAP UNDERLINE-P] - where - face is the symbol `face', - NAME is the symbol with which this vector is associated (a backpointer), - ID is the face ID, an integer used internally by the C code to identify - the face, - FONT, FOREGROUND, and BACKGROUND are strings naming the fonts and colors - to use with the face, FONT may name fontsets, - BACKGROUND-PIXMAP is the name of an x bitmap filename, which we don't - use right now, and - UNDERLINE-P is non-nil if the face should be underlined. - If any of these elements are nil, that parameter is considered - unspecified; parameters from faces specified by lower-priority - overlays or text properties, or the parameters of the frame itself, - can show through. (lisp/faces.el maintains these lists.) - - (assq FACE-NAME global-face-data) returns a vector describing the - global parameters for that face. - - Let PARAM-FACE be FRAME->output_data.w32->param_faces[Faref(FACE-VECTOR,2)]. - PARAM_FACE is a struct face whose members are the Xlib analogues of - the parameters in FACE-VECTOR. If an element of FACE-VECTOR is - nil, then the corresponding member of PARAM_FACE is FACE_DEFAULT. - These faces are called "parameter faces", because they're the ones - lisp manipulates to control what gets displayed. Elements 0 and 1 - of FRAME->output_data.w32->param_faces are special - they describe the - default and mode line faces. None of the faces in param_faces have - GC's. (See src/dispextern.h for the definition of struct face. - lisp/faces.el maintains the isomorphism between face_alist and - param_faces.) - - The functions compute_char_face and compute_glyph_face find and - combine the parameter faces associated with overlays and text - properties. The resulting faces are called "computed faces"; none - of their members are FACE_DEFAULT; they are completely specified. - They then call intern_compute_face to search - FRAME->output_data.x->computed_faces for a matching face, add one if - none is found, and return the index into - FRAME->output_data.x->computed_faces. FRAME's glyph matrices use these - indices to record the faces of the matrix characters, and the X - display hooks consult compute_faces to decide how to display these - characters. Elements 0 and 1 of computed_faces always describe the - default and mode-line faces. - - Each computed face belongs to a particular frame. - - Computed faces have graphics contexts some of the time. - intern_face builds a GC for a specified computed face - if it doesn't have one already. - clear_face_cache clears out the GCs of all computed faces. - This is done from time to time so that we don't hold on to - lots of GCs that are no longer needed. - - If a computed face has 0 as its font, - it is unused, and can be reused by new_computed_face. - - Constraints: - - Symbols naming faces must have associations on all frames; for any - FRAME, for all FACE-NAME, if (assq FACE-NAME (frame-face-alist - FRAME)) is non-nil, it must be non-nil for all frames. - - Analogously, indices into param_faces must be valid on all frames; - if param_faces[i] is a non-zero face pointer on one frame, then it - must be filled in on all frames. Code assumes that face ID's can - be used on any frame. - - Some subtleties: - - Why do we keep param_faces and computed_faces separate? - computed_faces contains an element for every combination of facial - parameters we have ever displayed. indices into param_faces have - to be valid on all frames. If they were the same array, then that - array would grow very large on all frames, because any facial - combination displayed on any frame would need to be a valid entry - on all frames. */ - -/* Definitions and declarations. */ +#include <stdio.h> +#include <ctype.h> +#include "keyboard.h" + +#ifndef max +#define max(A, B) ((A) > (B) ? (A) : (B)) +#define min(A, B) ((A) < (B) ? (A) : (B)) +#define abs(X) ((X) < 0 ? -(X) : (X)) +#endif + +/* Non-zero if face attribute ATTR is unspecified. */ -/* The number of face-id's in use (same for all frames). */ -static int next_face_id; +#define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) -/* The number of the face to use to indicate the region. */ -static int region_face; +/* Value is the number of elements of VECTOR. */ -/* This is what appears in a slot in a face to signify that the face - does not specify that display aspect. */ -#define FACE_DEFAULT (~0) +#define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) + +/* Make a copy of string S on the stack using alloca. Value is a pointer + to the copy. */ + +#define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) + +/* Make a copy of the contents of Lisp string S on the stack using + alloca. Value is a pointer to the copy. */ + +#define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) + +/* Size of hash table of realized faces in face caches (should be a + prime number). */ + +#define FACE_CACHE_BUCKETS_SIZE 1001 + +/* A definition of XColor for non-X frames. */ +#ifndef HAVE_X_WINDOWS +typedef struct { + unsigned long pixel; + unsigned short red, green, blue; + char flags; + char pad; +} XColor; +#endif + +/* Keyword symbols used for face attribute names. */ + +Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; +Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; +Lisp_Object QCwidth, QCfont, QCbold, QCitalic; +Lisp_Object QCreverse_video; +Lisp_Object QCoverline, QCstrike_through, QCbox; + +/* Symbols used for attribute values. */ + +Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; +Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; +Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; +Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; +Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; +Lisp_Object Qultra_expanded; +Lisp_Object Qreleased_button, Qpressed_button; +Lisp_Object QCstyle, QCcolor, QCline_width; +Lisp_Object Qunspecified; + +char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; + +/* The symbol `x-charset-registry'. This property of charsets defines + the X registry and encoding that fonts should have that are used to + display characters of that charset. */ + +Lisp_Object Qx_charset_registry; + +/* The name of the function to call when the background of the frame + has changed, frame_update_face_colors. */ + +Lisp_Object Qframe_update_face_colors; + +/* Names of basic faces. */ + +Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; +Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; +extern Lisp_Object Qmode_line; + +/* The symbol `face-alias'. A symbols having that property is an + alias for another face. Value of the property is the name of + the aliased face. */ + +Lisp_Object Qface_alias; + +/* Names of frame parameters related to faces. */ + +extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; + +/* Default stipple pattern used on monochrome displays. This stipple + pattern is used on monochrome displays instead of shades of gray + for a face background color. See `set-face-stipple' for possible + values for this variable. */ + +Lisp_Object Vface_default_stipple; + +/* Default registry and encoding to use for charsets whose charset + symbols don't specify one. */ + +Lisp_Object Vface_default_registry; + +/* Alist of alternative font families. Each element is of the form + (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, + try FAMILY1, then FAMILY2, ... */ + +Lisp_Object Vface_alternative_font_family_alist; + +/* Allowed scalable fonts. A value of nil means don't allow any + scalable fonts. A value of t means allow the use of any scalable + font. Otherwise, value must be a list of regular expressions. A + font may be scaled if its name matches a regular expression in the + list. */ + +#if SCALABLE_FONTS +Lisp_Object Vscalable_fonts_allowed; +#endif + +/* Maximum number of fonts to consider in font_list. If not an + integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ + +Lisp_Object Vfont_list_limit; +#define DEFAULT_FONT_LIST_LIMIT 100 + +/* The symbols `foreground-color' and `background-color' which can be + used as part of a `face' property. This is for compatibility with + Emacs 20.2. */ + +Lisp_Object Qforeground_color, Qbackground_color; + +/* The symbols `face' and `mouse-face' used as text properties. */ Lisp_Object Qface; -Lisp_Object Qpixmap_spec_p; +extern Lisp_Object Qmouse_face; + +/* Error symbol for wrong_type_argument in load_pixmap. */ + +Lisp_Object Qbitmap_spec_p; + +/* Alist of global face definitions. Each element is of the form + (FACE . LFACE) where FACE is a symbol naming a face and LFACE + is a Lisp vector of face attributes. These faces are used + to initialize faces for new frames. */ + +Lisp_Object Vface_new_frame_defaults; + +/* The next ID to assign to Lisp faces. */ -extern Lisp_Object Qmouse_face; /* In textprop.c. */ +static int next_lface_id; -int face_name_id_number ( /* FRAME_PTR, Lisp_Object name */ ); +/* A vector mapping Lisp face Id's to face names. */ + +static Lisp_Object *lface_id_to_name; +static int lface_id_to_name_size; + +/* tty color-related functions (defined on lisp/term/tty-colors.el). */ +Lisp_Object Qtty_color_desc, Qtty_color_by_index; + +/* Counter for calls to clear_face_cache. If this counter reaches + CLEAR_FONT_TABLE_COUNT, and a frame has more than + CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ + +static int clear_font_table_count; +#define CLEAR_FONT_TABLE_COUNT 100 +#define CLEAR_FONT_TABLE_NFONTS 10 + +/* Non-zero means face attributes have been changed since the last + redisplay. Used in redisplay_internal. */ + +int face_change_count; + +/* The total number of colors currently allocated. */ + +#if GLYPH_DEBUG +static int ncolors_allocated; +static int npixmaps_allocated; +static int ngcs; +#endif -struct face *intern_face ( /* FRAME_PTR, struct face * */ ); -static int new_computed_face ( /* FRAME_PTR, struct face * */ ); -static int intern_computed_face ( /* FRAME_PTR, struct face * */ ); -static void ensure_face_ready ( /* FRAME_PTR, int id */ ); -void recompute_basic_faces ( /* FRAME_PTR f */ ); -static void merge_face_list ( /* FRAME_PTR, struct face *, Lisp_Object */ ); -extern Lisp_Object Qforeground_color, Qbackground_color; -/* Allocating, copying, and comparing struct faces. */ +/* Function prototypes. */ + +struct font_name; +struct table_entry; + +static Lisp_Object resolve_face_name P_ ((Lisp_Object)); +static int may_use_scalable_font_p P_ ((struct font_name *, char *)); +static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); +static int better_font_p P_ ((int *, struct font_name *, struct font_name *, + int)); +static int first_font_matching P_ ((struct frame *f, char *, + struct font_name *)); +static int x_face_list_fonts P_ ((struct frame *, char *, + struct font_name *, int, int, int)); +static int font_scalable_p P_ ((struct font_name *)); +static Lisp_Object deduce_unibyte_registry P_ ((struct frame *, char *)); +static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); +static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); +static char *xstrdup P_ ((char *)); +static unsigned char *xstrlwr P_ ((unsigned char *)); +static void signal_error P_ ((char *, Lisp_Object)); +static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); +static void load_face_font_or_fontset P_ ((struct frame *, struct face *, char *, int)); +static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); +static void free_face_colors P_ ((struct frame *, struct face *)); +static int face_color_gray_p P_ ((struct frame *, char *)); +static char *build_font_name P_ ((struct font_name *)); +static void free_font_names P_ ((struct font_name *, int)); +static int sorted_font_list P_ ((struct frame *, char *, + int (*cmpfn) P_ ((const void *, const void *)), + struct font_name **)); +static int font_list P_ ((struct frame *, char *, char *, char *, struct font_name **)); +static int try_font_list P_ ((struct frame *, Lisp_Object *, char *, char *, char *, + struct font_name **)); +static int cmp_font_names P_ ((const void *, const void *)); +static struct face *realize_face P_ ((struct face_cache *, + Lisp_Object *, int)); +static struct face *realize_x_face P_ ((struct face_cache *, + Lisp_Object *, int)); +static struct face *realize_tty_face P_ ((struct face_cache *, + Lisp_Object *, int)); +static int realize_basic_faces P_ ((struct frame *)); +static int realize_default_face P_ ((struct frame *)); +static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); +static int lface_fully_specified_p P_ ((Lisp_Object *)); +static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); +static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); +static unsigned lface_hash P_ ((Lisp_Object *)); +static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); +static struct face_cache *make_face_cache P_ ((struct frame *)); +static void free_realized_face P_ ((struct frame *, struct face *)); +static void clear_face_gcs P_ ((struct face_cache *)); +static void free_face_cache P_ ((struct face_cache *)); +static int face_numeric_weight P_ ((Lisp_Object)); +static int face_numeric_slant P_ ((Lisp_Object)); +static int face_numeric_swidth P_ ((Lisp_Object)); +static int face_fontset P_ ((struct frame *, Lisp_Object *)); +static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, + Lisp_Object)); +static char *choose_face_fontset_font P_ ((struct frame *, Lisp_Object *, + int, int)); +static void merge_face_vectors P_ ((Lisp_Object *from, Lisp_Object *)); +static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, + Lisp_Object)); +static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, char *, + int, int)); +static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); +static struct face *make_realized_face P_ ((Lisp_Object *, int, Lisp_Object)); +static void free_realized_faces P_ ((struct face_cache *)); +static char *best_matching_font P_ ((struct frame *, Lisp_Object *, + struct font_name *, int)); +static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); +static void uncache_face P_ ((struct face_cache *, struct face *)); +static int xlfd_numeric_slant P_ ((struct font_name *)); +static int xlfd_numeric_weight P_ ((struct font_name *)); +static int xlfd_numeric_swidth P_ ((struct font_name *)); +static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); +static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); +static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); +static int xlfd_fixed_p P_ ((struct font_name *)); +static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, + int, int)); +static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, + struct font_name *, int, int)); +static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, + struct font_name *, int)); + +static int split_font_name P_ ((struct frame *, struct font_name *, int)); +static int xlfd_point_size P_ ((struct frame *, struct font_name *)); +static void sort_fonts P_ ((struct frame *, struct font_name *, int, + int (*cmpfn) P_ ((const void *, const void *)))); +static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); +static void x_free_gc P_ ((struct frame *, GC)); +static void clear_font_table P_ ((struct frame *)); + +extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); -/* Allocate a new face */ -static struct face * -allocate_face () -{ - struct face *result = (struct face *) xmalloc (sizeof (struct face)); - bzero (result, sizeof (struct face)); - result->font = (XFontStruct *) FACE_DEFAULT; - result->fontset = -1; - result->foreground = FACE_DEFAULT; - result->background = FACE_DEFAULT; - result->stipple = FACE_DEFAULT; - return result; + +/*********************************************************************** + Utilities + ***********************************************************************/ + +/* Create and return a GC for use on frame F. GC values and mask + are given by XGCV and MASK. */ + +static INLINE GC +x_create_gc (f, mask, xgcv) + struct frame *f; + unsigned long mask; + XGCValues *xgcv; +{ + GC gc; + BLOCK_INPUT; + gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); + UNBLOCK_INPUT; + IF_DEBUG (++ngcs); + return gc; } -/* Make a new face that's a copy of an existing one. */ -static struct face * -copy_face (face) - struct face *face; + +/* Free GC which was used on frame F. */ + +static INLINE void +x_free_gc (f, gc) + struct frame *f; + GC gc; { - struct face *result = allocate_face (); + BLOCK_INPUT; + xassert (--ngcs >= 0); + xfree (gc); + UNBLOCK_INPUT; +} - result->font = face->font; - result->fontset = face->fontset; - result->foreground = face->foreground; - result->background = face->background; - result->stipple = face->stipple; - result->underline = face->underline; - result->pixmap_h = face->pixmap_h; - result->pixmap_w = face->pixmap_w; +/* Like strdup, but uses xmalloc. */ - return result; +static char * +xstrdup (s) + char *s; +{ + int len = strlen (s) + 1; + char *p = (char *) xmalloc (len); + bcopy (s, p, len); + return p; } -static int -face_eql (face1, face2) - struct face *face1, *face2; + +/* Like stricmp. Used to compare parts of font names which are in + ISO8859-1. */ + +int +xstricmp (s1, s2) + unsigned char *s1, *s2; { - return ( face1->font == face2->font - && face1->fontset == face2->fontset - && face1->foreground == face2->foreground - && face1->background == face2->background - && face1->stipple == face2->stipple - && face1->underline == face2->underline); + while (*s1 && *s2) + { + unsigned char c1 = tolower (*s1); + unsigned char c2 = tolower (*s2); + if (c1 != c2) + return c1 < c2 ? -1 : 1; + ++s1, ++s2; + } + + if (*s1 == 0) + return *s2 == 0 ? 0 : -1; + return 1; } - -/* Managing graphics contexts of faces. */ -/* Given a computed face, construct its graphics context if necessary. */ -struct face * -intern_face (f, face) - struct frame *f; - struct face *face; +/* Like strlwr, which might not always be available. */ + +static unsigned char * +xstrlwr (s) + unsigned char *s; { - face->gc = NULL; + unsigned char *p = s; - return face; + for (p = s; *p; ++p) + *p = tolower (*p); + + return s; } -/* Clear out all graphics contexts for all computed faces - except for the default and mode line faces. - This should be done from time to time just to avoid - keeping too many graphics contexts that are no longer needed. */ -void -clear_face_cache () +/* Signal `error' with message S, and additional argument ARG. */ + +static void +signal_error (s, arg) + char *s; + Lisp_Object arg; +{ + Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); +} + + +/* If FRAME is nil, return a pointer to the selected frame. + Otherwise, check that FRAME is a live frame, and return a pointer + to it. NPARAM is the parameter number of FRAME, for + CHECK_LIVE_FRAME. This is here because it's a frequent pattern in + Lisp function definitions. */ + +static INLINE struct frame * +frame_or_selected_frame (frame, nparam) + Lisp_Object frame; + int nparam; { -/* Nothing extra */ + if (NILP (frame)) + frame = selected_frame; + + CHECK_LIVE_FRAME (frame, nparam); + return XFRAME (frame); } + -/* Allocating, freeing, and duplicating fonts, colors, and pixmaps. +/*********************************************************************** + Frames and faces + ***********************************************************************/ - These functions operate on param faces only. - Computed faces get their fonts, colors and pixmaps - by merging param faces. */ +/* Initialize face cache and basic faces for frame F. */ -static XFontStruct * -load_font (f, name) +void +init_frame_faces (f) struct frame *f; - Lisp_Object name; { - struct font_info *fontinf; - XFontStruct *font = NULL; + /* Make a face cache, if F doesn't have one. */ + if (FRAME_FACE_CACHE (f) == NULL) + FRAME_FACE_CACHE (f) = make_face_cache (f); + + /* Make the image cache. */ + if (FRAME_WINDOW_P (f)) + { + if (FRAME_X_IMAGE_CACHE (f) == NULL) + FRAME_X_IMAGE_CACHE (f) = make_image_cache (); + ++FRAME_X_IMAGE_CACHE (f)->refcount; + } - if (NILP (name)) - return (XFontStruct *) FACE_DEFAULT; + /* Realize basic faces. Must have enough information in frame + parameters to realize basic faces at this point. */ + if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) + if (!realize_basic_faces (f)) + abort (); +} - CHECK_STRING (name, 0); - BLOCK_INPUT; - fontinf = w32_load_font (f, (char *) XSTRING (name)->data, 0); - UNBLOCK_INPUT; - if (fontinf) - font = (XFontStruct *)fontinf->font; - if (! font) - Fsignal (Qerror, Fcons (build_string ("undefined font"), - Fcons (name, Qnil))); - return font; -} +/* Free face cache of frame F. Called from Fdelete_frame. */ -static void -unload_font (f, font) +void +free_frame_faces (f) struct frame *f; - XFontStruct *font; { - if (!font || font == ((XFontStruct *) FACE_DEFAULT)) - return; + struct face_cache *face_cache = FRAME_FACE_CACHE (f); + + if (face_cache) + { + free_face_cache (face_cache); + FRAME_FACE_CACHE (f) = NULL; + } - BLOCK_INPUT; - w32_unload_font (FRAME_W32_DISPLAY_INFO (f), font); - UNBLOCK_INPUT; + if (FRAME_WINDOW_P (f)) + { + struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); + if (image_cache) + { + --image_cache->refcount; + if (image_cache->refcount == 0) + free_image_cache (f); + } + } } -static unsigned long -load_color (f, name) + +/* Clear face caches, and recompute basic faces for frame F. Call + this after changing frame parameters on which those faces depend, + or when realized faces have been freed due to changing attributes + of named faces. */ + +void +recompute_basic_faces (f) struct frame *f; - Lisp_Object name; { - COLORREF color; - int result; + if (FRAME_FACE_CACHE (f)) + { + clear_face_cache (0); + if (!realize_basic_faces (f)) + abort (); + } +} - if (NILP (name)) - return FACE_DEFAULT; - CHECK_STRING (name, 0); - /* if the colormap is full, defined_color will return a best match - to the values in an an existing cell. */ - result = defined_color(f, (char *) XSTRING (name)->data, &color, 1); - if (! result) - Fsignal (Qerror, Fcons (build_string ("undefined color"), - Fcons (name, Qnil))); - return (unsigned long) color; +/* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means + try to free unused fonts, too. */ + +void +clear_face_cache (clear_fonts_p) + int clear_fonts_p; +{ + Lisp_Object tail, frame; + struct frame *f; + + if (clear_fonts_p + || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) + { + /* From time to time see if we can unload some fonts. This also + frees all realized faces on all frames. Fonts needed by + faces will be loaded again when faces are realized again. */ + clear_font_table_count = 0; + + FOR_EACH_FRAME (tail, frame) + { + f = XFRAME (frame); + if (FRAME_WINDOW_P (f) + && FRAME_W32_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) + { + free_all_realized_faces (frame); + clear_font_table (f); + } + } + } + else + { + /* Clear GCs of realized faces. */ + FOR_EACH_FRAME (tail, frame) + { + f = XFRAME (frame); + if (FRAME_WINDOW_P (f)) + { + clear_face_gcs (FRAME_FACE_CACHE (f)); + clear_image_cache (f, 0); + } + } + } } + +DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, + "Clear face caches on all frames.\n\ +Optional THOROUGHLY non-nil means try to free unused fonts, too.") + (thorougly) + Lisp_Object thorougly; +{ + clear_face_cache (!NILP (thorougly)); + return Qnil; +} + + + +/* Remove those fonts from the font table of frame F that are not used + by fontsets. Called from clear_face_cache from time to time. */ + static void -unload_color (f, pixel) +clear_font_table (f) struct frame *f; - unsigned long pixel; { + struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f); + char *used; + Lisp_Object rest, frame; + int i; + + xassert (FRAME_WINDOW_P (f)); + + used = (char *) alloca (dpyinfo->n_fonts * sizeof *used); + bzero (used, dpyinfo->n_fonts * sizeof *used); + + /* For all frames with the same w32_display_info as F, record + in `used' those fonts that are in use by fontsets. */ + FOR_EACH_FRAME (rest, frame) + if (FRAME_W32_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) + { + struct frame *f = XFRAME (frame); + struct fontset_data *fontset_data = FRAME_FONTSET_DATA (f); + + for (i = 0; i < fontset_data->n_fontsets; ++i) + { + struct fontset_info *info = fontset_data->fontset_table[i]; + int j; + + for (j = 0; j <= MAX_CHARSET; ++j) + { + int idx = info->font_indexes[j]; + if (idx >= 0) + used[idx] = 1; + } + } + } + + /* Free those fonts that are not used by fontsets. */ + for (i = 0; i < dpyinfo->n_fonts; ++i) + if (used[i] == 0 && dpyinfo->font_table[i].name) + { + struct font_info *font_info = dpyinfo->font_table + i; + + /* Free names. In xfns.c there is a comment that full_name + should never be freed because it is always shared with + something else. I don't think this is true anymore---see + x_load_font. It's either equal to font_info->name or + allocated via xmalloc, and there seems to be no place in + the source files where full_name is transferred to another + data structure. */ + if (font_info->full_name != font_info->name) + xfree (font_info->full_name); + xfree (font_info->name); + + /* Free the font. */ + BLOCK_INPUT; + w32_unload_font (dpyinfo, font_info->font); + UNBLOCK_INPUT; + + /* Mark font table slot free. */ + font_info->font = NULL; + font_info->name = font_info->full_name = NULL; + } } -DEFUN ("pixmap-spec-p", Fpixmap_spec_p, Spixmap_spec_p, 1, 1, 0, - "Return t if OBJECT is a valid pixmap specification.") + + +/*********************************************************************** + X Pixmaps + ***********************************************************************/ + +DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, + "Value is non-nil if OBJECT is a valid bitmap specification.\n\ +A bitmap specification is either a string, a filename, or a list\n\ +(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\ +HEIGHT is its height, and DATA is a string containing the bits of the\n\ +bitmap. Bits are stored row by row, each row occupies\n\ +(WIDTH + 7) / 8 bytes.") (object) Lisp_Object object; { - Lisp_Object height, width; + int pixmap_p = 0; + + if (STRINGP (object)) + /* If OBJECT is a string, it's a file name. */ + pixmap_p = 1; + else if (CONSP (object)) + { + /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and + HEIGHT must be integers > 0, and DATA must be string large + enough to hold a bitmap of the specified size. */ + Lisp_Object width, height, data; + + height = width = data = Qnil; + + if (CONSP (object)) + { + width = XCAR (object); + object = XCDR (object); + if (CONSP (object)) + { + height = XCAR (object); + object = XCDR (object); + if (CONSP (object)) + data = XCAR (object); + } + } - return ((STRINGP (object) - || (CONSP (object) - && CONSP (XCDR (object)) - && CONSP (XCDR (XCDR (object))) - && NILP (XCDR (XCDR (XCDR (object)))) - && (width = XCAR (object), INTEGERP (width)) - && (height = XCAR (XCDR (object)), INTEGERP (height)) - && STRINGP (XCAR (XCDR (XCDR (object)))) - && XINT (width) > 0 - && XINT (height) > 0 - /* The string must have enough bits for width * height. */ - && ((XSTRING (XCAR (XCDR (XCDR (object))))->size - * (BITS_PER_INT / sizeof (int))) - >= XFASTINT (width) * XFASTINT (height)))) - ? Qt : Qnil); + if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) + { + int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) + / BITS_PER_CHAR); + if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * height) + pixmap_p = 1; + } + } + + return pixmap_p ? Qt : Qnil; } -/* Load a bitmap according to NAME (which is either a file name - or a pixmap spec). Return the bitmap_id (see xfns.c) - or get an error if NAME is invalid. - Store the bitmap width in *W_PTR and height in *H_PTR. */ +/* Load a bitmap according to NAME (which is either a file name or a + pixmap spec) for use on frame F. Value is the bitmap_id (see + xfns.c). If NAME is nil, return with a bitmap id of zero. If + bitmap cannot be loaded, display a message saying so, and return + zero. Store the bitmap width in *W_PTR and its height in *H_PTR, + if these pointers are not null. */ -static long +static int load_pixmap (f, name, w_ptr, h_ptr) FRAME_PTR f; Lisp_Object name; @@ -333,14 +858,13 @@ load_pixmap (f, name, w_ptr, h_ptr) Lisp_Object tem; if (NILP (name)) - return FACE_DEFAULT; + return 0; - tem = Fpixmap_spec_p (name); + tem = Fbitmap_spec_p (name); if (NILP (tem)) - wrong_type_argument (Qpixmap_spec_p, name); + wrong_type_argument (Qbitmap_spec_p, name); BLOCK_INPUT; - if (CONSP (name)) { /* Decode a bitmap spec into a bitmap. */ @@ -363,348 +887,4959 @@ load_pixmap (f, name, w_ptr, h_ptr) UNBLOCK_INPUT; if (bitmap_id < 0) - Fsignal (Qerror, Fcons (build_string ("invalid or undefined bitmap"), - Fcons (name, Qnil))); + { + add_to_log ("Invalid or undefined bitmap %s", name, Qnil); + bitmap_id = 0; - *w_ptr = x_bitmap_width (f, bitmap_id); - *h_ptr = x_bitmap_height (f, bitmap_id); + if (w_ptr) + *w_ptr = 0; + if (h_ptr) + *h_ptr = 0; + } + else + { +#if GLYPH_DEBUG + ++npixmaps_allocated; +#endif + if (w_ptr) + *w_ptr = x_bitmap_width (f, bitmap_id); + + if (h_ptr) + *h_ptr = x_bitmap_height (f, bitmap_id); + } return bitmap_id; } -/* Managing parameter face arrays for frames. */ -void -init_frame_faces (f) - FRAME_PTR f; + + +/*********************************************************************** + Minimum font bounds + ***********************************************************************/ + +/* Update the line_height of frame F. Return non-zero if line height + changes. */ + +int +frame_update_line_height (f) + struct frame *f; { - ensure_face_ready (f, 0); - ensure_face_ready (f, 1); + int fontset, line_height, changed_p; + + fontset = FRAME_FONTSET (f); + if (fontset > 0) + line_height = FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height; + else + line_height = FONT_HEIGHT (FRAME_FONT (f)); + + changed_p = line_height != FRAME_LINE_HEIGHT (f); + FRAME_LINE_HEIGHT (f) = line_height; + return changed_p; +} - FRAME_N_COMPUTED_FACES (f) = 0; - FRAME_SIZE_COMPUTED_FACES (f) = 0; + +/*********************************************************************** + Fonts + ***********************************************************************/ - new_computed_face (f, FRAME_PARAM_FACES (f)[0]); - new_computed_face (f, FRAME_PARAM_FACES (f)[1]); - recompute_basic_faces (f); +/* Load font or fontset of face FACE which is used on frame F. + FONTSET is the fontset FACE should use or -1, if FACE doesn't use a + fontset. FONT_NAME is the name of the font to load, if no fontset + is used. It is null if no suitable font name could be determined + for the face. */ - /* Find another frame. */ - { - Lisp_Object tail, frame, result; - - result = Qnil; - FOR_EACH_FRAME (tail, frame) - if (FRAME_W32_P (XFRAME (frame)) - && XFRAME (frame) != f) +static void +load_face_font_or_fontset (f, face, font_name, fontset) + struct frame *f; + struct face *face; + char *font_name; + int fontset; +{ + struct font_info *font_info = NULL; + + face->font_info_id = -1; + face->fontset = fontset; + face->font = NULL; + + BLOCK_INPUT; + if (fontset >= 0) + font_info = FS_LOAD_FONT (f, FRAME_W32_FONT_TABLE (f), CHARSET_ASCII, + NULL, fontset); + else if (font_name) + font_info = FS_LOAD_FONT (f, FRAME_W32_FONT_TABLE (f), face->charset, + font_name, -1); + UNBLOCK_INPUT; + + if (font_info) + { + char *s; + int i; + + face->font_info_id = FONT_INFO_ID (f, font_info); + face->font = font_info->font; + face->font_name = font_info->full_name; + + /* Make the registry part of the font name readily accessible. + The registry is used to find suitable faces for unibyte text. */ + s = font_info->full_name + strlen (font_info->full_name); + i = 0; + while (i < 2 && --s >= font_info->full_name) + if (*s == '-') + ++i; + + if (!STRINGP (face->registry) + || xstricmp (XSTRING (face->registry)->data, s + 1) != 0) + { + if (STRINGP (Vface_default_registry) + && !xstricmp (XSTRING (Vface_default_registry)->data, s + 1)) + face->registry = Vface_default_registry; + else + face->registry = build_string (s + 1); + } + } + else if (fontset >= 0) + add_to_log ("Unable to load ASCII font of fontset %d", + make_number (fontset), Qnil); + else if (font_name) + add_to_log ("Unable to load font %s", + build_string (font_name), Qnil); +} + + + +/*********************************************************************** + X Colors + ***********************************************************************/ + +/* A version of defined_color for non-X frames. */ +int +tty_defined_color (f, color_name, color_def, alloc) + struct frame *f; + char *color_name; + XColor *color_def; + int alloc; +{ + Lisp_Object color_desc; + int color_idx = FACE_TTY_DEFAULT_COLOR, red = 0, green = 0, blue = 0; + int status = 1; + + if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) + { + Lisp_Object frame; + + XSETFRAME (frame, f); + status = 0; + color_desc = call2 (Qtty_color_desc, build_string (color_name), frame); + if (CONSP (color_desc) && CONSP (XCDR (color_desc))) + { + color_idx = XINT (XCAR (XCDR (color_desc))); + if (CONSP (XCDR (XCDR (color_desc)))) + { + red = XINT (XCAR (XCDR (XCDR (color_desc)))); + green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); + blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); + } + status = 1; + } + else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) + /* We were called early during startup, and the colors are not + yet set up in tty-defined-color-alist. Don't return a failure + indication, since this produces the annoying "Unable to + load color" messages in the *Messages* buffer. */ + status = 1; + } + if (color_idx == FACE_TTY_DEFAULT_COLOR && *color_name) + { + if (strcmp (color_name, "unspecified-fg") == 0) + color_idx = FACE_TTY_DEFAULT_FG_COLOR; + else if (strcmp (color_name, "unspecified-bg") == 0) + color_idx = FACE_TTY_DEFAULT_BG_COLOR; + } + + color_def->pixel = (unsigned long) color_idx; + color_def->red = red; + color_def->green = green; + color_def->blue = blue; + + return status; +} + +/* Decide if color named COLOR is valid for the display associated + with the frame F; if so, return the rgb values in COLOR_DEF. If + ALLOC is nonzero, allocate a new colormap cell. + + This does the right thing for any type of frame. */ +int +defined_color (f, color_name, color_def, alloc) + struct frame *f; + char *color_name; + XColor *color_def; + int alloc; +{ + if (!f) + return 1; + + if (!FRAME_WINDOW_P (f)) + return tty_defined_color (f, color_name, color_def, alloc); +#ifdef HAVE_X_WINDOWS + else if (FRAME_X_P (f)) + return x_defined_color (f, color_name, color_def, alloc); +#endif +#ifdef WINDOWSNT + else if (FRAME_WINDOW_P (f)) + /* FIXME: w32_defined_color doesn't exist! w32fns.c defines + defined_color which needs to be renamed, and the declaration + of color_def therein should be changed. */ + return w32_defined_color (f, color_name, color_def, alloc); +#endif +#ifdef macintosh + else if (FRAME_MAC_P (f)) + /* FIXME: mac_defined_color doesn't exist! */ + return mac_defined_color (f, color_name, color_def, alloc); +#endif + else + abort (); +} + +/* Given the index of the tty color, return its name, a Lisp string. */ + +Lisp_Object +tty_color_name (f, idx) + struct frame *f; + int idx; +{ + char *color; + + if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) + { + Lisp_Object frame; + Lisp_Object coldesc; + + XSETFRAME (frame, f); + coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); + + if (!NILP (coldesc)) + return XCAR (coldesc); + } +#ifdef MSDOS + /* We can have an MSDOG frame under -nw for a short window of + opportunity before internal_terminal_init is called. DTRT. */ + if (FRAME_MSDOS_P (f) && !inhibit_window_system) + return msdos_stdcolor_name (idx); +#endif + +#ifdef WINDOWSNT + /* FIXME: When/if w32 supports colors in non-window mode, there should + be a call here to a w32-specific function that returns the color + by index using the default color mapping on a Windows console. */ +#endif + + if (idx == FACE_TTY_DEFAULT_FG_COLOR) + return build_string (unspecified_fg); + if (idx == FACE_TTY_DEFAULT_BG_COLOR) + return build_string (unspecified_bg); + return Qunspecified; +} + +/* Return non-zero if COLOR_NAME is a shade of gray (or white or + black) on frame F. The algorithm is taken from 20.2 faces.el. */ + +static int +face_color_gray_p (f, color_name) + struct frame *f; + char *color_name; +{ + XColor color; + int gray_p; + + if (defined_color (f, color_name, &color, 0)) + gray_p = ((abs (color.red - color.green) + < max (color.red, color.green) / 20) + && (abs (color.green - color.blue) + < max (color.green, color.blue) / 20) + && (abs (color.blue - color.red) + < max (color.blue, color.red) / 20)); + else + gray_p = 0; + + return gray_p; +} + + +/* Return non-zero if color COLOR_NAME can be displayed on frame F. + BACKGROUND_P non-zero means the color will be used as background + color. */ + +static int +face_color_supported_p (f, color_name, background_p) + struct frame *f; + char *color_name; + int background_p; +{ + Lisp_Object frame; + XColor not_used; + + XSETFRAME (frame, f); + return (FRAME_WINDOW_P (f) + ? (!NILP (Fxw_display_color_p (frame)) + || xstricmp (color_name, "black") == 0 + || xstricmp (color_name, "white") == 0 + || (background_p + && face_color_gray_p (f, color_name)) + || (!NILP (Fx_display_grayscale_p (frame)) + && face_color_gray_p (f, color_name))) + : tty_defined_color (f, color_name, ¬_used, 0)); +} + + +DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, + "Return non-nil if COLOR is a shade of gray (or white or black).\n\ +FRAME specifies the frame and thus the display for interpreting COLOR.\n\ +If FRAME is nil or omitted, use the selected frame.") + (color, frame) + Lisp_Object color, frame; +{ + struct frame *f; + + CHECK_FRAME (frame, 0); + CHECK_STRING (color, 0); + f = XFRAME (frame); + return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; +} + + +DEFUN ("color-supported-p", Fcolor_supported_p, + Scolor_supported_p, 2, 3, 0, + "Return non-nil if COLOR can be displayed on FRAME.\n\ +BACKGROUND-P non-nil means COLOR is used as a background.\n\ +If FRAME is nil or omitted, use the selected frame.\n\ +COLOR must be a valid color name.") + (color, frame, background_p) + Lisp_Object frame, color, background_p; +{ + struct frame *f; + + CHECK_FRAME (frame, 0); + CHECK_STRING (color, 0); + f = XFRAME (frame); + if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) + return Qt; + return Qnil; +} + +/* Load color with name NAME for use by face FACE on frame F. + TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, + LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, + LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the + pixel color. If color cannot be loaded, display a message, and + return the foreground, background or underline color of F, but + record that fact in flags of the face so that we don't try to free + these colors. */ + +unsigned long +load_color (f, face, name, target_index) + struct frame *f; + struct face *face; + Lisp_Object name; + enum lface_attribute_index target_index; +{ + XColor color; + + xassert (STRINGP (name)); + xassert (target_index == LFACE_FOREGROUND_INDEX + || target_index == LFACE_BACKGROUND_INDEX + || target_index == LFACE_UNDERLINE_INDEX + || target_index == LFACE_OVERLINE_INDEX + || target_index == LFACE_STRIKE_THROUGH_INDEX + || target_index == LFACE_BOX_INDEX); + + /* if the color map is full, defined_color will return a best match + to the values in an existing cell. */ + if (!defined_color (f, XSTRING (name)->data, &color, 1)) + { + add_to_log ("Unable to load color \"%s\"", name, Qnil); + + switch (target_index) { - result = frame; + case LFACE_FOREGROUND_INDEX: + face->foreground_defaulted_p = 1; + color.pixel = FRAME_FOREGROUND_PIXEL (f); break; + + case LFACE_BACKGROUND_INDEX: + face->background_defaulted_p = 1; + color.pixel = FRAME_BACKGROUND_PIXEL (f); + break; + + case LFACE_UNDERLINE_INDEX: + face->underline_defaulted_p = 1; + color.pixel = FRAME_FOREGROUND_PIXEL (f); + break; + + case LFACE_OVERLINE_INDEX: + face->overline_color_defaulted_p = 1; + color.pixel = FRAME_FOREGROUND_PIXEL (f); + break; + + case LFACE_STRIKE_THROUGH_INDEX: + face->strike_through_color_defaulted_p = 1; + color.pixel = FRAME_FOREGROUND_PIXEL (f); + break; + + case LFACE_BOX_INDEX: + face->box_color_defaulted_p = 1; + color.pixel = FRAME_FOREGROUND_PIXEL (f); + break; + + default: + abort (); } + } +#if GLYPH_DEBUG + else + ++ncolors_allocated; +#endif + + return color.pixel; +} - /* If we didn't find any X frames other than f, then we don't need - any faces other than 0 and 1, so we're okay. Otherwise, make - sure that all faces valid on the selected frame are also valid - on this new frame. */ - if (FRAMEP (result)) - { - int i; - int n_faces = FRAME_N_PARAM_FACES (XFRAME (result)); - struct face **faces = FRAME_PARAM_FACES (XFRAME (result)); +#ifdef HAVE_WINDOW_SYSTEM - for (i = 2; i < n_faces; i++) - if (faces[i]) - ensure_face_ready (f, i); - } - } +/* Load colors for face FACE which is used on frame F. Colors are + specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX + of ATTRS. If the background color specified is not supported on F, + try to emulate gray colors with a stipple from Vface_default_stipple. */ + +static void +load_face_colors (f, face, attrs) + struct frame *f; + struct face *face; + Lisp_Object *attrs; +{ + Lisp_Object fg, bg; + + bg = attrs[LFACE_BACKGROUND_INDEX]; + fg = attrs[LFACE_FOREGROUND_INDEX]; + + /* Swap colors if face is inverse-video. */ + if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) + { + Lisp_Object tmp; + tmp = fg; + fg = bg; + bg = tmp; + } + + /* Check for support for foreground, not for background because + face_color_supported_p is smart enough to know that grays are + "supported" as background because we are supposed to use stipple + for them. */ + if (!face_color_supported_p (f, XSTRING (bg)->data, 0) + && !NILP (Fbitmap_spec_p (Vface_default_stipple))) + { + x_destroy_bitmap (f, face->stipple); + face->stipple = load_pixmap (f, Vface_default_stipple, + &face->pixmap_w, &face->pixmap_h); + } + + face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); + face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); } -/* Called from Fdelete_frame. */ +/* Free color PIXEL on frame F. */ void -free_frame_faces (f) +unload_color (f, pixel) + struct frame *f; + unsigned long pixel; +{ + /* Nothing to do on W32 */ +} + + +/* Free colors allocated for FACE. */ + +static void +free_face_colors (f, face) + struct frame *f; + struct face *face; +{ + /* Nothing to do on W32 */ +} +#endif /* HAVE_WINDOW_SYSTEM */ + + + +/*********************************************************************** + XLFD Font Names + ***********************************************************************/ + +/* An enumerator for each field of an XLFD font name. */ + +enum xlfd_field +{ + XLFD_FOUNDRY, + XLFD_FAMILY, + XLFD_WEIGHT, + XLFD_SLANT, + XLFD_SWIDTH, + XLFD_ADSTYLE, + XLFD_PIXEL_SIZE, + XLFD_POINT_SIZE, + XLFD_RESX, + XLFD_RESY, + XLFD_SPACING, + XLFD_AVGWIDTH, + XLFD_REGISTRY, + XLFD_ENCODING, + XLFD_LAST +}; + +/* An enumerator for each possible slant value of a font. Taken from + the XLFD specification. */ + +enum xlfd_slant +{ + XLFD_SLANT_UNKNOWN, + XLFD_SLANT_ROMAN, + XLFD_SLANT_ITALIC, + XLFD_SLANT_OBLIQUE, + XLFD_SLANT_REVERSE_ITALIC, + XLFD_SLANT_REVERSE_OBLIQUE, + XLFD_SLANT_OTHER +}; + +/* Relative font weight according to XLFD documentation. */ + +enum xlfd_weight +{ + XLFD_WEIGHT_UNKNOWN, + XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ + XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ + XLFD_WEIGHT_LIGHT, /* 30 */ + XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ + XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ + XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ + XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ + XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ + XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ +}; + +/* Relative proportionate width. */ + +enum xlfd_swidth +{ + XLFD_SWIDTH_UNKNOWN, + XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ + XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ + XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ + XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ + XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ + XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ + XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ + XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ + XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ +}; + +/* Structure used for tables mapping XLFD weight, slant, and width + names to numeric and symbolic values. */ + +struct table_entry +{ + char *name; + int numeric; + Lisp_Object *symbol; +}; + +/* Table of XLFD slant names and their numeric and symbolic + representations. This table must be sorted by slant names in + ascending order. */ + +static struct table_entry slant_table[] = +{ + {"i", XLFD_SLANT_ITALIC, &Qitalic}, + {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, + {"ot", XLFD_SLANT_OTHER, &Qitalic}, + {"r", XLFD_SLANT_ROMAN, &Qnormal}, + {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, + {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} +}; + +/* Table of XLFD weight names. This table must be sorted by weight + names in ascending order. */ + +static struct table_entry weight_table[] = +{ + {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, + {"bold", XLFD_WEIGHT_BOLD, &Qbold}, + {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, + {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, + {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, + {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, + {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, + {"light", XLFD_WEIGHT_LIGHT, &Qlight}, + {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, + {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, + {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, + {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, + {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, + {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, + {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} +}; + +/* Table of XLFD width names. This table must be sorted by width + names in ascending order. */ + +static struct table_entry swidth_table[] = +{ + {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, + {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, + {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, + {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, + {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, + {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, + {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, + {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, + {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, + {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, + {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, + {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, + {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, + {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, + {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} +}; + +/* Structure used to hold the result of splitting font names in XLFD + format into their fields. */ + +struct font_name +{ + /* The original name which is modified destructively by + split_font_name. The pointer is kept here to be able to free it + if it was allocated from the heap. */ + char *name; + + /* Font name fields. Each vector element points into `name' above. + Fields are NUL-terminated. */ + char *fields[XLFD_LAST]; + + /* Numeric values for those fields that interest us. See + split_font_name for which these are. */ + int numeric[XLFD_LAST]; +}; + +/* The frame in effect when sorting font names. Set temporarily in + sort_fonts so that it is available in font comparison functions. */ + +static struct frame *font_frame; + +/* Order by which font selection chooses fonts. The default values + mean `first, find a best match for the font width, then for the + font height, then for weight, then for slant.' This variable can be + set via set-face-font-sort-order. */ + +static int font_sort_order[4]; + + +/* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. + TABLE must be sorted by TABLE[i]->name in ascending order. Value + is a pointer to the matching table entry or null if no table entry + matches. */ + +static struct table_entry * +xlfd_lookup_field_contents (table, dim, font, field_index) + struct table_entry *table; + int dim; + struct font_name *font; + int field_index; +{ + /* Function split_font_name converts fields to lower-case, so there + is no need to use xstrlwr or xstricmp here. */ + char *s = font->fields[field_index]; + int low, mid, high, cmp; + + low = 0; + high = dim - 1; + + while (low <= high) + { + mid = (low + high) / 2; + cmp = strcmp (table[mid].name, s); + + if (cmp < 0) + low = mid + 1; + else if (cmp > 0) + high = mid - 1; + else + return table + mid; + } + + return NULL; +} + + +/* Return a numeric representation for font name field + FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which + has DIM entries. Value is the numeric value found or DFLT if no + table entry matches. This function is used to translate weight, + slant, and swidth names of XLFD font names to numeric values. */ + +static INLINE int +xlfd_numeric_value (table, dim, font, field_index, dflt) + struct table_entry *table; + int dim; + struct font_name *font; + int field_index; + int dflt; +{ + struct table_entry *p; + p = xlfd_lookup_field_contents (table, dim, font, field_index); + return p ? p->numeric : dflt; +} + + +/* Return a symbolic representation for font name field + FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which + has DIM entries. Value is the symbolic value found or DFLT if no + table entry matches. This function is used to translate weight, + slant, and swidth names of XLFD font names to symbols. */ + +static INLINE Lisp_Object +xlfd_symbolic_value (table, dim, font, field_index, dflt) + struct table_entry *table; + int dim; + struct font_name *font; + int field_index; + int dflt; +{ + struct table_entry *p; + p = xlfd_lookup_field_contents (table, dim, font, field_index); + return p ? *p->symbol : dflt; +} + + +/* Return a numeric value for the slant of the font given by FONT. */ + +static INLINE int +xlfd_numeric_slant (font) + struct font_name *font; +{ + return xlfd_numeric_value (slant_table, DIM (slant_table), + font, XLFD_SLANT, XLFD_SLANT_ROMAN); +} + + +/* Return a symbol representing the weight of the font given by FONT. */ + +static INLINE Lisp_Object +xlfd_symbolic_slant (font) + struct font_name *font; +{ + return xlfd_symbolic_value (slant_table, DIM (slant_table), + font, XLFD_SLANT, Qnormal); +} + + +/* Return a numeric value for the weight of the font given by FONT. */ + +static INLINE int +xlfd_numeric_weight (font) + struct font_name *font; +{ + return xlfd_numeric_value (weight_table, DIM (weight_table), + font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); +} + + +/* Return a symbol representing the slant of the font given by FONT. */ + +static INLINE Lisp_Object +xlfd_symbolic_weight (font) + struct font_name *font; +{ + return xlfd_symbolic_value (weight_table, DIM (weight_table), + font, XLFD_WEIGHT, Qnormal); +} + + +/* Return a numeric value for the swidth of the font whose XLFD font + name fields are found in FONT. */ + +static INLINE int +xlfd_numeric_swidth (font) + struct font_name *font; +{ + return xlfd_numeric_value (swidth_table, DIM (swidth_table), + font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); +} + + +/* Return a symbolic value for the swidth of FONT. */ + +static INLINE Lisp_Object +xlfd_symbolic_swidth (font) + struct font_name *font; +{ + return xlfd_symbolic_value (swidth_table, DIM (swidth_table), + font, XLFD_SWIDTH, Qnormal); +} + + +/* Look up the entry of SYMBOL in the vector TABLE which has DIM + entries. Value is a pointer to the matching table entry or null if + no element of TABLE contains SYMBOL. */ + +static struct table_entry * +face_value (table, dim, symbol) + struct table_entry *table; + int dim; + Lisp_Object symbol; +{ + int i; + + xassert (SYMBOLP (symbol)); + + for (i = 0; i < dim; ++i) + if (EQ (*table[i].symbol, symbol)) + break; + + return i < dim ? table + i : NULL; +} + + +/* Return a numeric value for SYMBOL in the vector TABLE which has DIM + entries. Value is -1 if SYMBOL is not found in TABLE. */ + +static INLINE int +face_numeric_value (table, dim, symbol) + struct table_entry *table; + int dim; + Lisp_Object symbol; +{ + struct table_entry *p = face_value (table, dim, symbol); + return p ? p->numeric : -1; +} + + +/* Return a numeric value representing the weight specified by Lisp + symbol WEIGHT. Value is one of the enumerators of enum + xlfd_weight. */ + +static INLINE int +face_numeric_weight (weight) + Lisp_Object weight; +{ + return face_numeric_value (weight_table, DIM (weight_table), weight); +} + + +/* Return a numeric value representing the slant specified by Lisp + symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ + +static INLINE int +face_numeric_slant (slant) + Lisp_Object slant; +{ + return face_numeric_value (slant_table, DIM (slant_table), slant); +} + + +/* Return a numeric value representing the swidth specified by Lisp + symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ + +static int +face_numeric_swidth (width) + Lisp_Object width; +{ + return face_numeric_value (swidth_table, DIM (swidth_table), width); +} + + +/* Return non-zero if FONT is the name of a fixed-pitch font. */ + +static INLINE int +xlfd_fixed_p (font) + struct font_name *font; +{ + /* Function split_font_name converts fields to lower-case, so there + is no need to use tolower here. */ + return *font->fields[XLFD_SPACING] != 'p'; +} + + +/* Return the point size of FONT on frame F, measured in 1/10 pt. + + The actual height of the font when displayed on F depends on the + resolution of both the font and frame. For example, a 10pt font + designed for a 100dpi display will display larger than 10pt on a + 75dpi display. (It's not unusual to use fonts not designed for the + display one is using. For example, some intlfonts are available in + 72dpi versions, only.) + + Value is the real point size of FONT on frame F, or 0 if it cannot + be determined. */ + +static INLINE int +xlfd_point_size (f, font) struct frame *f; + struct font_name *font; +{ + double resy = FRAME_W32_DISPLAY_INFO (f)->resy; + double font_resy = atoi (font->fields[XLFD_RESY]); + double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); + int real_pt; + + if (font_resy == 0 || font_pt == 0) + real_pt = 0; + else + real_pt = (font_resy / resy) * font_pt + 0.5; + + return real_pt; +} + + +/* Split XLFD font name FONT->name destructively into NUL-terminated, + lower-case fields in FONT->fields. NUMERIC_P non-zero means + compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, + XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is + zero if the font name doesn't have the format we expect. The + expected format is a font name that starts with a `-' and has + XLFD_LAST fields separated by `-'. (The XLFD specification allows + forms of font names where certain field contents are enclosed in + square brackets. We don't support that, for now. */ + +static int +split_font_name (f, font, numeric_p) + struct frame *f; + struct font_name *font; + int numeric_p; +{ + int i = 0; + int success_p; + + if (*font->name == '-') + { + char *p = xstrlwr (font->name) + 1; + + while (i < XLFD_LAST) + { + font->fields[i] = p; + ++i; + + while (*p && *p != '-') + ++p; + + if (*p != '-') + break; + + *p++ = 0; + } + } + + success_p = i == XLFD_LAST; + + /* If requested, and font name was in the expected format, + compute numeric values for some fields. */ + if (numeric_p && success_p) + { + font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); + font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); + font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); + font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); + font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); + } + + return success_p; +} + + +/* Build an XLFD font name from font name fields in FONT. Value is a + pointer to the font name, which is allocated via xmalloc. */ + +static char * +build_font_name (font) + struct font_name *font; { int i; + int size = 100; + char *font_name = (char *) xmalloc (size); + int total_length = 0; + + for (i = 0; i < XLFD_LAST; ++i) + { + /* Add 1 because of the leading `-'. */ + int len = strlen (font->fields[i]) + 1; + + /* Reallocate font_name if necessary. Add 1 for the final + NUL-byte. */ + if (total_length + len + 1 >= size) + { + int new_size = max (2 * size, size + len + 1); + int sz = new_size * sizeof *font_name; + font_name = (char *) xrealloc (font_name, sz); + size = new_size; + } + + font_name[total_length] = '-'; + bcopy (font->fields[i], font_name + total_length + 1, len - 1); + total_length += len; + } + + font_name[total_length] = 0; + return font_name; +} + + +/* Free an array FONTS of N font_name structures. This frees FONTS + itself and all `name' fields in its elements. */ + +static INLINE void +free_font_names (fonts, n) + struct font_name *fonts; + int n; +{ + while (n) + xfree (fonts[--n].name); + xfree (fonts); +} + +/* Sort vector FONTS of font_name structures which contains NFONTS + elements using qsort and comparison function CMPFN. F is the frame + on which the fonts will be used. The global variable font_frame + is temporarily set to F to make it available in CMPFN. */ + +static INLINE void +sort_fonts (f, fonts, nfonts, cmpfn) + struct frame *f; + struct font_name *fonts; + int nfonts; + int (*cmpfn) P_ ((const void *, const void *)); +{ + font_frame = f; + qsort (fonts, nfonts, sizeof *fonts, cmpfn); + font_frame = NULL; +} + + +/* Get fonts matching PATTERN on frame F. If F is null, use the first + display in x_display_list. FONTS is a pointer to a vector of + NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try + alternative patterns from Valternate_fontname_alist if no fonts are + found matching PATTERN. SCALABLE_FONTS_P non-zero means include + scalable fonts. + + For all fonts found, set FONTS[i].name to the name of the font, + allocated via xmalloc, and split font names into fields. Ignore + fonts that we can't parse. Value is the number of fonts found. + + This is similar to x_list_fonts. The differences are: + + 1. It avoids consing. + 2. It never calls XLoadQueryFont. */ + +static int +x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, + scalable_fonts_p) + struct frame *f; + char *pattern; + struct font_name *fonts; + int nfonts, try_alternatives_p; + int scalable_fonts_p; +{ + /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be + better to do it the other way around. */ + int n = 0, i, j; + char **names = NULL; + Lisp_Object lfonts; + Lisp_Object lpattern, tem; + + lpattern = build_string (pattern); + + /* Get the list of fonts matching PATTERN. */ BLOCK_INPUT; + lfonts = w32_list_fonts (f, lpattern, 0, nfonts); + UNBLOCK_INPUT; + + /* Count fonts returned */ + for (tem = lfonts; CONSP (tem); tem = XCDR (tem)) + n++; + + /* Allocate array. */ + if (n) + names = (char **) xmalloc (n * sizeof (char *)); + + /* Extract font names into char * array. */ + tem = lfonts; + for (i = 0; i < n; i++) + { + names[i] = XSTRING (XCAR (tem))->data; + tem = XCDR (tem); + } + + if (names) + { + /* Make a copy of the font names we got from X, and + split them into fields. */ + for (i = j = 0; i < n; ++i) + { + /* Make a copy of the font name. */ + fonts[j].name = xstrdup (names[i]); + + /* Ignore fonts having a name that we can't parse. */ + if (!split_font_name (f, fonts + j, 1)) + xfree (fonts[j].name); + else if (font_scalable_p (fonts + j)) + { +#if SCALABLE_FONTS + if (!scalable_fonts_p + || !may_use_scalable_font_p (fonts + j, names[i])) + xfree (fonts[j].name); + else + ++j; +#else /* !SCALABLE_FONTS */ + /* Always ignore scalable fonts. */ + xfree (fonts[j].name); +#endif /* !SCALABLE_FONTS */ + } + else + ++j; + } + + n = j; + + /* Free font names. */ +#if 0 /* NTEMACS_TODO : W32 equivalent? */ + BLOCK_INPUT; + XFreeFontNames (names); + UNBLOCK_INPUT; +#endif /* NTEMACS_TODO */ + } + - for (i = 0; i < FRAME_N_PARAM_FACES (f); i++) + /* If no fonts found, try patterns from Valternate_fontname_alist. */ + if (n == 0 && try_alternatives_p) { - struct face *face = FRAME_PARAM_FACES (f) [i]; - if (face) + Lisp_Object list = Valternate_fontname_alist; + + while (CONSP (list)) { - if (face->fontset < 0) - unload_font (f, face->font); - unload_color (f, face->foreground); - unload_color (f, face->background); - x_destroy_bitmap (f, face->stipple); - xfree (face); + Lisp_Object entry = XCAR (list); + if (CONSP (entry) + && STRINGP (XCAR (entry)) + && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) + break; + list = XCDR (list); + } + + if (CONSP (list)) + { + Lisp_Object patterns = XCAR (list); + Lisp_Object name; + + while (CONSP (patterns) + /* If list is screwed up, give up. */ + && (name = XCAR (patterns), + STRINGP (name)) + /* Ignore patterns equal to PATTERN because we tried that + already with no success. */ + && (strcmp (XSTRING (name)->data, pattern) == 0 + || (n = x_face_list_fonts (f, XSTRING (name)->data, + fonts, nfonts, 0, + scalable_fonts_p), + n == 0))) + patterns = XCDR (patterns); } } - xfree (FRAME_PARAM_FACES (f)); - FRAME_PARAM_FACES (f) = 0; - FRAME_N_PARAM_FACES (f) = 0; + + return n; +} + + +/* Determine the first font matching PATTERN on frame F. Return in + *FONT the matching font name, split into fields. Value is non-zero + if a match was found. */ - /* All faces in FRAME_COMPUTED_FACES use resources copied from - FRAME_PARAM_FACES; we can free them without fuss. - But we do free the GCs and the face objects themselves. */ - for (i = 0; i < FRAME_N_COMPUTED_FACES (f); i++) +static int +first_font_matching (f, pattern, font) + struct frame *f; + char *pattern; + struct font_name *font; +{ + int nfonts = 100; + struct font_name *fonts; + + fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); + nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); + + if (nfonts > 0) { - struct face *face = FRAME_COMPUTED_FACES (f) [i]; - if (face) + bcopy (&fonts[0], font, sizeof *font); + + fonts[0].name = NULL; + free_font_names (fonts, nfonts); + } + + return nfonts > 0; +} + + +/* Determine fonts matching PATTERN on frame F. Sort resulting fonts + using comparison function CMPFN. Value is the number of fonts + found. If value is non-zero, *FONTS is set to a vector of + font_name structures allocated from the heap containing matching + fonts. Each element of *FONTS contains a name member that is also + allocated from the heap. Font names in these structures are split + into fields. Use free_font_names to free such an array. */ + +static int +sorted_font_list (f, pattern, cmpfn, fonts) + struct frame *f; + char *pattern; + int (*cmpfn) P_ ((const void *, const void *)); + struct font_name **fonts; +{ + int nfonts; + + /* Get the list of fonts matching pattern. 100 should suffice. */ + nfonts = DEFAULT_FONT_LIST_LIMIT; + if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) + nfonts = XFASTINT (Vfont_list_limit); + + *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); +#if SCALABLE_FONTS + nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); +#else + nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 0); +#endif + + /* Sort the resulting array and return it in *FONTS. If no + fonts were found, make sure to set *FONTS to null. */ + if (nfonts) + sort_fonts (f, *fonts, nfonts, cmpfn); + else + { + xfree (*fonts); + *fonts = NULL; + } + + return nfonts; +} + + +/* Compare two font_name structures *A and *B. Value is analogous to + strcmp. Sort order is given by the global variable + font_sort_order. Font names are sorted so that, everything else + being equal, fonts with a resolution closer to that of the frame on + which they are used are listed first. The global variable + font_frame is the frame on which we operate. */ + +static int +cmp_font_names (a, b) + const void *a, *b; +{ + struct font_name *x = (struct font_name *) a; + struct font_name *y = (struct font_name *) b; + int cmp; + + /* All strings have been converted to lower-case by split_font_name, + so we can use strcmp here. */ + cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); + if (cmp == 0) + { + int i; + + for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) { - xfree (face); + int j = font_sort_order[i]; + cmp = x->numeric[j] - y->numeric[j]; + } + + if (cmp == 0) + { + /* Everything else being equal, we prefer fonts with an + y-resolution closer to that of the frame. */ + int resy = FRAME_W32_DISPLAY_INFO (font_frame)->resy; + int x_resy = x->numeric[XLFD_RESY]; + int y_resy = y->numeric[XLFD_RESY]; + cmp = abs (resy - x_resy) - abs (resy - y_resy); } } - xfree (FRAME_COMPUTED_FACES (f)); - FRAME_COMPUTED_FACES (f) = 0; - FRAME_N_COMPUTED_FACES (f) = 0; - UNBLOCK_INPUT; + return cmp; } - -/* Interning faces in a frame's face array. */ + + +/* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN + is non-null list fonts matching that pattern. Otherwise, if + REGISTRY_AND_ENCODING is non-null return only fonts with that + registry and encoding, otherwise return fonts of any registry and + encoding. Set *FONTS to a vector of font_name structures allocated + from the heap containing the fonts found. Value is the number of + fonts found. */ static int -new_computed_face (f, new_face) +font_list (f, pattern, family, registry_and_encoding, fonts) struct frame *f; - struct face *new_face; + char *pattern; + char *family; + char *registry_and_encoding; + struct font_name **fonts; { - int len = FRAME_N_COMPUTED_FACES (f); - int i; + if (pattern == NULL) + { + if (family == NULL) + family = "*"; + + if (registry_and_encoding == NULL) + registry_and_encoding = "*"; + + pattern = (char *) alloca (strlen (family) + + strlen (registry_and_encoding) + + 10); + if (index (family, '-')) + sprintf (pattern, "-%s-*-%s", family, registry_and_encoding); + else + sprintf (pattern, "-*-%s-*-%s", family, registry_and_encoding); + } + + return sorted_font_list (f, pattern, cmp_font_names, fonts); +} + + +/* Remove elements from LIST whose cars are `equal'. Called from + x-family-fonts and x-font-family-list to remove duplicate font + entries. */ - /* Search for an unused computed face in the middle of the table. */ - for (i = 0; i < len; i++) +static void +remove_duplicates (list) + Lisp_Object list; +{ + Lisp_Object tail = list; + + while (!NILP (tail) && !NILP (XCDR (tail))) + { + Lisp_Object next = XCDR (tail); + if (!NILP (Fequal (XCAR (next), XCAR (tail)))) + XCDR (tail) = XCDR (next); + else + tail = XCDR (tail); + } +} + + +DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, + "Return a list of available fonts of family FAMILY on FRAME.\n\ +If FAMILY is omitted or nil, list all families.\n\ +Otherwise, FAMILY must be a string, possibly containing wildcards\n\ +`?' and `*'.\n\ +If FRAME is omitted or nil, use the selected frame.\n\ +Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ +SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ +FAMILY is the font family name. POINT-SIZE is the size of the\n\ +font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ +width, weight and slant of the font. These symbols are the same as for\n\ +face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ +FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ +giving the registry and encoding of the font.\n\ +The result list is sorted according to the current setting of\n\ +the face font sort order.") + (family, frame) + Lisp_Object family, frame; +{ + struct frame *f = check_x_frame (frame); + struct font_name *fonts; + int i, nfonts; + Lisp_Object result; + struct gcpro gcpro1; + char *family_pattern; + + if (NILP (family)) + family_pattern = "*"; + else + { + CHECK_STRING (family, 1); + family_pattern = LSTRDUPA (family); + } + + result = Qnil; + GCPRO1 (result); + nfonts = font_list (f, NULL, family_pattern, NULL, &fonts); + for (i = nfonts - 1; i >= 0; --i) { - struct face *face = FRAME_COMPUTED_FACES (f)[i]; - if (face->font == 0) + Lisp_Object v = Fmake_vector (make_number (8), Qnil); + char *tem; + +#define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL)) + + ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); + ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); + ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); + ASET (v, 3, xlfd_symbolic_weight (fonts + i)); + ASET (v, 4, xlfd_symbolic_slant (fonts + i)); + ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); + tem = build_font_name (fonts + i); + ASET (v, 6, build_string (tem)); + sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], + fonts[i].fields[XLFD_ENCODING]); + ASET (v, 7, build_string (tem)); + xfree (tem); + + result = Fcons (v, result); + +#undef ASET + } + + remove_duplicates (result); + free_font_names (fonts, nfonts); + UNGCPRO; + return result; +} + + +DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, + 0, 1, 0, + "Return a list of available font families on FRAME.\n\ +If FRAME is omitted or nil, use the selected frame.\n\ +Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ +is a font family, and FIXED-P is non-nil if fonts of that family\n\ +are fixed-pitch.") + (frame) + Lisp_Object frame; +{ + struct frame *f = check_x_frame (frame); + int nfonts, i; + struct font_name *fonts; + Lisp_Object result; + struct gcpro gcpro1; + int count = specpdl_ptr - specpdl; + int limit; + + /* Let's consider all fonts. Increase the limit for matching + fonts until we have them all. */ + for (limit = 500;;) + { + specbind (intern ("font-list-limit"), make_number (limit)); + nfonts = font_list (f, NULL, "*", NULL, &fonts); + + if (nfonts == limit) { - FRAME_COMPUTED_FACES (f)[i] = copy_face (new_face); - return i; + free_font_names (fonts, nfonts); + limit *= 2; } + else + break; + } + + result = Qnil; + GCPRO1 (result); + for (i = nfonts - 1; i >= 0; --i) + result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), + xlfd_fixed_p (fonts + i) ? Qt : Qnil), + result); + + remove_duplicates (result); + free_font_names (fonts, nfonts); + UNGCPRO; + return unbind_to (count, result); +} + + +DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, + "Return a list of the names of available fonts matching PATTERN.\n\ +If optional arguments FACE and FRAME are specified, return only fonts\n\ +the same size as FACE on FRAME.\n\ +PATTERN is a string, perhaps with wildcard characters;\n\ + the * character matches any substring, and\n\ + the ? character matches any single character.\n\ + PATTERN is case-insensitive.\n\ +FACE is a face name--a symbol.\n\ +\n\ +The return value is a list of strings, suitable as arguments to\n\ +set-face-font.\n\ +\n\ +Fonts Emacs can't use may or may not be excluded\n\ +even if they match PATTERN and FACE.\n\ +The optional fourth argument MAXIMUM sets a limit on how many\n\ +fonts to match. The first MAXIMUM fonts are reported.\n\ +The optional fifth argument WIDTH, if specified, is a number of columns\n\ +occupied by a character of a font. In that case, return only fonts\n\ +the WIDTH times as wide as FACE on FRAME.") + (pattern, face, frame, maximum, width) + Lisp_Object pattern, face, frame, maximum, width; +{ + struct frame *f; + int size; + int maxnames; + + check_w32 (); + CHECK_STRING (pattern, 0); + + if (NILP (maximum)) + maxnames = 2000; + else + { + CHECK_NATNUM (maximum, 0); + maxnames = XINT (maximum); } - if (i >= FRAME_SIZE_COMPUTED_FACES (f)) + if (!NILP (width)) + CHECK_NUMBER (width, 4); + + /* We can't simply call check_x_frame because this function may be + called before any frame is created. */ + f = frame_or_selected_frame (frame, 2); + if (!FRAME_WINDOW_P (f)) { - int new_size = i + 32; + /* Perhaps we have not yet created any frame. */ + f = NULL; + face = Qnil; + } - FRAME_COMPUTED_FACES (f) - = (struct face **) (FRAME_SIZE_COMPUTED_FACES (f) == 0 - ? xmalloc (new_size * sizeof (struct face *)) - : xrealloc (FRAME_COMPUTED_FACES (f), - new_size * sizeof (struct face *))); - FRAME_SIZE_COMPUTED_FACES (f) = new_size; + /* Determine the width standard for comparison with the fonts we find. */ + + if (NILP (face)) + size = 0; + else + { + /* This is of limited utility since it works with character + widths. Keep it for compatibility. --gerd. */ + int face_id = lookup_named_face (f, face, CHARSET_ASCII); + struct face *face = FACE_FROM_ID (f, face_id); + + if (face->font) + size = FONT_MAX_WIDTH (face->font); + else + size = FONT_MAX_WIDTH (FRAME_FONT (f)); + + if (!NILP (width)) + size *= XINT (width); } - i = FRAME_N_COMPUTED_FACES (f)++; - FRAME_COMPUTED_FACES (f)[i] = copy_face (new_face); - return i; + { + Lisp_Object args[2]; + + args[0] = w32_list_fonts (f, pattern, size, maxnames); + if (f == NULL) + /* We don't have to check fontsets. */ + return args[0]; + args[1] = list_fontsets (f, pattern, size); + return Fnconc (2, args); + } } -/* Find a match for NEW_FACE in a FRAME's computed face array, and add - it if we don't find one. */ -static int -intern_computed_face (f, new_face) + +/*********************************************************************** + Lisp Faces + ***********************************************************************/ + +/* Access face attributes of face FACE, a Lisp vector. */ + +#define LFACE_FAMILY(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] +#define LFACE_HEIGHT(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] +#define LFACE_WEIGHT(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] +#define LFACE_SLANT(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] +#define LFACE_UNDERLINE(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] +#define LFACE_INVERSE(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] +#define LFACE_FOREGROUND(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] +#define LFACE_BACKGROUND(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] +#define LFACE_STIPPLE(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] +#define LFACE_SWIDTH(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] +#define LFACE_OVERLINE(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] +#define LFACE_STRIKE_THROUGH(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] +#define LFACE_BOX(LFACE) \ + XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] + +/* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size + LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ + +#define LFACEP(LFACE) \ + (VECTORP (LFACE) \ + && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ + && EQ (XVECTOR (LFACE)->contents[0], Qface)) + + +#if GLYPH_DEBUG + +/* Check consistency of Lisp face attribute vector ATTRS. */ + +static void +check_lface_attrs (attrs) + Lisp_Object *attrs; +{ + xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) + || STRINGP (attrs[LFACE_FAMILY_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) + || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) + || INTEGERP (attrs[LFACE_HEIGHT_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) + || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) + || SYMBOLP (attrs[LFACE_SLANT_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) + || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) + || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) + || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) + || STRINGP (attrs[LFACE_OVERLINE_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) + || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) + || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) + || SYMBOLP (attrs[LFACE_BOX_INDEX]) + || STRINGP (attrs[LFACE_BOX_INDEX]) + || INTEGERP (attrs[LFACE_BOX_INDEX]) + || CONSP (attrs[LFACE_BOX_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) + || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) + || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); + xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) + || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); +#ifdef HAVE_WINDOW_SYSTEM + xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) + || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) + || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); +#endif +} + + +/* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ + +static void +check_lface (lface) + Lisp_Object lface; +{ + if (!NILP (lface)) + { + xassert (LFACEP (lface)); + check_lface_attrs (XVECTOR (lface)->contents); + } +} + +#else /* GLYPH_DEBUG == 0 */ + +#define check_lface_attrs(attrs) (void) 0 +#define check_lface(lface) (void) 0 + +#endif /* GLYPH_DEBUG == 0 */ + + +/* Resolve face name FACE_NAME. If FACE_NAME Is a string, intern it + to make it a symvol. If FACE_NAME is an alias for another face, + return that face's name. */ + +static Lisp_Object +resolve_face_name (face_name) + Lisp_Object face_name; +{ + Lisp_Object aliased; + + if (STRINGP (face_name)) + face_name = intern (XSTRING (face_name)->data); + + for (;;) + { + aliased = Fget (face_name, Qface_alias); + if (NILP (aliased)) + break; + else + face_name = aliased; + } + + return face_name; +} + + +/* Return the face definition of FACE_NAME on frame F. F null means + return the global definition. FACE_NAME may be a string or a + symbol (apparently Emacs 20.2 allows strings as face names in face + text properties; ediff uses that). If FACE_NAME is an alias for + another face, return that face's definition. If SIGNAL_P is + non-zero, signal an error if FACE_NAME is not a valid face name. + If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face + name. */ + +static INLINE Lisp_Object +lface_from_face_name (f, face_name, signal_p) struct frame *f; - struct face *new_face; + Lisp_Object face_name; + int signal_p; +{ + Lisp_Object lface; + + face_name = resolve_face_name (face_name); + + if (f) + lface = assq_no_quit (face_name, f->face_alist); + else + lface = assq_no_quit (face_name, Vface_new_frame_defaults); + + if (CONSP (lface)) + lface = XCDR (lface); + else if (signal_p) + signal_error ("Invalid face", face_name); + + check_lface (lface); + return lface; +} + + +/* Get face attributes of face FACE_NAME from frame-local faces on + frame F. Store the resulting attributes in ATTRS which must point + to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P + is non-zero, signal an error if FACE_NAME does not name a face. + Otherwise, value is zero if FACE_NAME is not a face. */ + +static INLINE int +get_lface_attributes (f, face_name, attrs, signal_p) + struct frame *f; + Lisp_Object face_name; + Lisp_Object *attrs; + int signal_p; +{ + Lisp_Object lface; + int success_p; + + lface = lface_from_face_name (f, face_name, signal_p); + if (!NILP (lface)) + { + bcopy (XVECTOR (lface)->contents, attrs, + LFACE_VECTOR_SIZE * sizeof *attrs); + success_p = 1; + } + else + success_p = 0; + + return success_p; +} + + +/* Non-zero if all attributes in face attribute vector ATTRS are + specified, i.e. are non-nil. */ + +static int +lface_fully_specified_p (attrs) + Lisp_Object *attrs; { - int len = FRAME_N_COMPUTED_FACES (f); int i; - /* Search for a computed face already on F equivalent to FACE. */ - for (i = 0; i < len; i++) + for (i = 1; i < LFACE_VECTOR_SIZE; ++i) + if (UNSPECIFIEDP (attrs[i])) + break; + + return i == LFACE_VECTOR_SIZE; +} + +#ifdef HAVE_WINDOW_SYSTEM + +/* Set font-related attributes of Lisp face LFACE from XLFD font name + FONT_NAME. If FORCE_P is zero, set only unspecified attributes of + LFACE. MAY_FAIL_P non-zero means return 0 if FONT_NAME isn't a + valid font name; otherwise this function tries to use a reasonable + default font. + + Ignore fields of FONT_NAME containing wildcards. Value is zero if + not successful because FONT_NAME was not in a valid format and + MAY_FAIL_P was non-zero. A valid format is one that is suitable + for split_font_name, see the comment there. */ + +static int +set_lface_from_font_name (f, lface, font_name, force_p, may_fail_p) + struct frame *f; + Lisp_Object lface; + char *font_name; + int force_p, may_fail_p; +{ + struct font_name font; + char *buffer; + int pt; + int free_font_name_p = 0; + int have_font_p = 0; + + /* If FONT_NAME contains wildcards, use the first matching font. */ + if (index (font_name, '*') || index (font_name, '?')) + { + if (first_font_matching (f, font_name, &font)) + free_font_name_p = have_font_p = 1; + } + else + { + font.name = STRDUPA (font_name); + if (split_font_name (f, &font, 1)) + have_font_p = 1; + else + { + /* The font name may be something like `6x13'. Make + sure we use the full name. */ + struct font_info *font_info; + + BLOCK_INPUT; + font_info = fs_load_font (f, FRAME_W32_FONT_TABLE (f), + CHARSET_ASCII, font_name, -1); + if (font_info) + { + font.name = STRDUPA (font_info->full_name); + split_font_name (f, &font, 1); + have_font_p = 1; + } + UNBLOCK_INPUT; + } + } + + /* If FONT_NAME is completely bogus try to use something reasonable + if this function must succeed. Otherwise, give up. */ + if (!have_font_p) { - if (! FRAME_COMPUTED_FACES (f)[i]) + if (may_fail_p) + return 0; + else if (first_font_matching (f, "-*-Courier New-normal-r-*-*-13-*-*-*-c-*-iso8859-1", + &font) + || first_font_matching (f, "-*-Courier-normal-r-*-*-13-*-*-*-c-*-iso8859-1", + &font) + || first_font_matching (f, "-*-FixedSys-normal-r-*-*-12-*-*-*-c-*-iso8859-1", + &font) + || first_font_matching (f, "-*-*-normal-r-*-*-*-*-*-*-c-*-iso8859-1", + &font) + || first_font_matching (f, "FixedSys", + &font)) + free_font_name_p = 1; + else abort (); - if (face_eql (new_face, FRAME_COMPUTED_FACES (f)[i])) - return i; } - /* We didn't find one; add a new one. */ - return new_computed_face (f, new_face); + + /* Set attributes only if unspecified, otherwise face defaults for + new frames would never take effect. */ + + if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) + { + buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) + + strlen (font.fields[XLFD_FOUNDRY]) + + 2); + sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], + font.fields[XLFD_FAMILY]); + LFACE_FAMILY (lface) = build_string (buffer); + } + + if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) + { + pt = xlfd_point_size (f, &font); + xassert (pt > 0); + LFACE_HEIGHT (lface) = make_number (pt); + } + + if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) + LFACE_SWIDTH (lface) = xlfd_symbolic_swidth (&font); + + if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) + LFACE_WEIGHT (lface) = xlfd_symbolic_weight (&font); + + if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) + LFACE_SLANT (lface) = xlfd_symbolic_slant (&font); + + if (free_font_name_p) + xfree (font.name); + + return 1; +} +#endif /* HAVE_WINDOW_SYSTEM */ + + +/* Merge two Lisp face attribute vectors FROM and TO and store the + resulting attributes in TO. Every non-nil attribute of FROM + overrides the corresponding attribute of TO. */ + +static INLINE void +merge_face_vectors (from, to) + Lisp_Object *from, *to; +{ + int i; + for (i = 1; i < LFACE_VECTOR_SIZE; ++i) + if (!UNSPECIFIEDP (from[i])) + to[i] = from[i]; } -/* Make parameter face id ID valid on frame F. */ +/* Given a Lisp face attribute vector TO and a Lisp object PROP that + is a face property, determine the resulting face attributes on + frame F, and store them in TO. PROP may be a single face + specification or a list of such specifications. Each face + specification can be + + 1. A symbol or string naming a Lisp face. + + 2. A property list of the form (KEYWORD VALUE ...) where each + KEYWORD is a face attribute name, and value is an appropriate value + for that attribute. + + 3. Conses or the form (FOREGROUND-COLOR . COLOR) or + (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is + for compatibility with 20.2. + + Face specifications earlier in lists take precedence over later + specifications. */ + static void -ensure_face_ready (f, id) +merge_face_vector_with_property (f, to, prop) struct frame *f; - int id; + Lisp_Object *to; + Lisp_Object prop; { - if (FRAME_N_PARAM_FACES (f) <= id) + if (CONSP (prop)) { - int n = id + 10; - int i; - if (!FRAME_N_PARAM_FACES (f)) - FRAME_PARAM_FACES (f) - = (struct face **) xmalloc (sizeof (struct face *) * n); + Lisp_Object first = XCAR (prop); + + if (EQ (first, Qforeground_color) + || EQ (first, Qbackground_color)) + { + /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR + . COLOR). COLOR must be a string. */ + Lisp_Object color_name = XCDR (prop); + Lisp_Object color = first; + + if (STRINGP (color_name)) + { + if (EQ (color, Qforeground_color)) + to[LFACE_FOREGROUND_INDEX] = color_name; + else + to[LFACE_BACKGROUND_INDEX] = color_name; + } + else + add_to_log ("Invalid face color", color_name, Qnil); + } + else if (SYMBOLP (first) + && *XSYMBOL (first)->name->data == ':') + { + /* Assume this is the property list form. */ + while (CONSP (prop) && CONSP (XCDR (prop))) + { + Lisp_Object keyword = XCAR (prop); + Lisp_Object value = XCAR (XCDR (prop)); + + if (EQ (keyword, QCfamily)) + { + if (STRINGP (value)) + to[LFACE_FAMILY_INDEX] = value; + else + add_to_log ("Illegal face font family", value, Qnil); + } + else if (EQ (keyword, QCheight)) + { + if (INTEGERP (value)) + to[LFACE_HEIGHT_INDEX] = value; + else + add_to_log ("Illegal face font height", value, Qnil); + } + else if (EQ (keyword, QCweight)) + { + if (SYMBOLP (value) + && face_numeric_weight (value) >= 0) + to[LFACE_WEIGHT_INDEX] = value; + else + add_to_log ("Illegal face weight", value, Qnil); + } + else if (EQ (keyword, QCslant)) + { + if (SYMBOLP (value) + && face_numeric_slant (value) >= 0) + to[LFACE_SLANT_INDEX] = value; + else + add_to_log ("Illegal face slant", value, Qnil); + } + else if (EQ (keyword, QCunderline)) + { + if (EQ (value, Qt) + || NILP (value) + || STRINGP (value)) + to[LFACE_UNDERLINE_INDEX] = value; + else + add_to_log ("Illegal face underline", value, Qnil); + } + else if (EQ (keyword, QCoverline)) + { + if (EQ (value, Qt) + || NILP (value) + || STRINGP (value)) + to[LFACE_OVERLINE_INDEX] = value; + else + add_to_log ("Illegal face overline", value, Qnil); + } + else if (EQ (keyword, QCstrike_through)) + { + if (EQ (value, Qt) + || NILP (value) + || STRINGP (value)) + to[LFACE_STRIKE_THROUGH_INDEX] = value; + else + add_to_log ("Illegal face strike-through", value, Qnil); + } + else if (EQ (keyword, QCbox)) + { + if (EQ (value, Qt)) + value = make_number (1); + if (INTEGERP (value) + || STRINGP (value) + || CONSP (value) + || NILP (value)) + to[LFACE_BOX_INDEX] = value; + else + add_to_log ("Illegal face box", value, Qnil); + } + else if (EQ (keyword, QCinverse_video) + || EQ (keyword, QCreverse_video)) + { + if (EQ (value, Qt) || NILP (value)) + to[LFACE_INVERSE_INDEX] = value; + else + add_to_log ("Illegal face inverse-video", value, Qnil); + } + else if (EQ (keyword, QCforeground)) + { + if (STRINGP (value)) + to[LFACE_FOREGROUND_INDEX] = value; + else + add_to_log ("Illegal face foreground", value, Qnil); + } + else if (EQ (keyword, QCbackground)) + { + if (STRINGP (value)) + to[LFACE_BACKGROUND_INDEX] = value; + else + add_to_log ("Illegal face background", value, Qnil); + } + else if (EQ (keyword, QCstipple)) + { + Lisp_Object pixmap_p = Fbitmap_spec_p (value); + if (!NILP (pixmap_p)) + to[LFACE_STIPPLE_INDEX] = value; + else + add_to_log ("Illegal face stipple", value, Qnil); + } + else if (EQ (keyword, QCwidth)) + { + if (SYMBOLP (value) + && face_numeric_swidth (value) >= 0) + to[LFACE_SWIDTH_INDEX] = value; + else + add_to_log ("Illegal face width", value, Qnil); + } + else + add_to_log ("Invalid attribute %s in face property", + keyword, Qnil); + + prop = XCDR (XCDR (prop)); + } + } else - FRAME_PARAM_FACES (f) - = (struct face **) xrealloc (FRAME_PARAM_FACES (f), - sizeof (struct face *) * n); + { + /* This is a list of face specs. Specifications at the + beginning of the list take precedence over later + specifications, so we have to merge starting with the + last specification. */ + Lisp_Object next = XCDR (prop); + if (!NILP (next)) + merge_face_vector_with_property (f, to, next); + merge_face_vector_with_property (f, to, first); + } + } + else + { + /* PROP ought to be a face name. */ + Lisp_Object lface = lface_from_face_name (f, prop, 0); + if (NILP (lface)) + add_to_log ("Invalid face text property value: %s", prop, Qnil); + else + merge_face_vectors (XVECTOR (lface)->contents, to); + } +} + - bzero (FRAME_PARAM_FACES (f) + FRAME_N_PARAM_FACES (f), - (n - FRAME_N_PARAM_FACES (f)) * sizeof (struct face *)); - FRAME_N_PARAM_FACES (f) = n; +DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, + Sinternal_make_lisp_face, 1, 2, 0, + "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ +If FACE was not known as a face before, create a new one.\n\ +If optional argument FRAME is specified, make a frame-local face\n\ +for that frame. Otherwise operate on the global face definition.\n\ +Value is a vector of face attributes.") + (face, frame) + Lisp_Object face, frame; +{ + Lisp_Object global_lface, lface; + struct frame *f; + int i; + + CHECK_SYMBOL (face, 0); + global_lface = lface_from_face_name (NULL, face, 0); + + if (!NILP (frame)) + { + CHECK_LIVE_FRAME (frame, 1); + f = XFRAME (frame); + lface = lface_from_face_name (f, face, 0); } + else + f = NULL, lface = Qnil; - if (FRAME_PARAM_FACES (f) [id] == 0) - FRAME_PARAM_FACES (f) [id] = allocate_face (); + /* Add a global definition if there is none. */ + if (NILP (global_lface)) + { + global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), + Qunspecified); + XVECTOR (global_lface)->contents[0] = Qface; + Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), + Vface_new_frame_defaults); + + /* Assign the new Lisp face a unique ID. The mapping from Lisp + face id to Lisp face is given by the vector lface_id_to_name. + The mapping from Lisp face to Lisp face id is given by the + property `face' of the Lisp face name. */ + if (next_lface_id == lface_id_to_name_size) + { + int new_size = max (50, 2 * lface_id_to_name_size); + int sz = new_size * sizeof *lface_id_to_name; + lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); + lface_id_to_name_size = new_size; + } + + lface_id_to_name[next_lface_id] = face; + Fput (face, Qface, make_number (next_lface_id)); + ++next_lface_id; + } + else if (f == NULL) + for (i = 1; i < LFACE_VECTOR_SIZE; ++i) + XVECTOR (global_lface)->contents[i] = Qunspecified; + + /* Add a frame-local definition. */ + if (f) + { + if (NILP (lface)) + { + lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), + Qunspecified); + XVECTOR (lface)->contents[0] = Qface; + f->face_alist = Fcons (Fcons (face, lface), f->face_alist); + } + else + for (i = 1; i < LFACE_VECTOR_SIZE; ++i) + XVECTOR (lface)->contents[i] = Qunspecified; + } + else + lface = global_lface; + + xassert (LFACEP (lface)); + check_lface (lface); + return lface; } + + +DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, + Sinternal_lisp_face_p, 1, 2, 0, + "Return non-nil if FACE names a face.\n\ +If optional second parameter FRAME is non-nil, check for the\n\ +existence of a frame-local face with name FACE on that frame.\n\ +Otherwise check for the existence of a global face.") + (face, frame) + Lisp_Object face, frame; +{ + Lisp_Object lface; + + if (!NILP (frame)) + { + CHECK_LIVE_FRAME (frame, 1); + lface = lface_from_face_name (XFRAME (frame), face, 0); + } + else + lface = lface_from_face_name (NULL, face, 0); + + return lface; +} + + +DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, + Sinternal_copy_lisp_face, 4, 4, 0, + "Copy face FROM to TO.\n\ +If FRAME it t, copy the global face definition of FROM to the\n\ +global face definition of TO. Otherwise, copy the frame-local\n\ +definition of FROM on FRAME to the frame-local definition of TO\n\ +on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ +\n\ +Value is TO.") + (from, to, frame, new_frame) + Lisp_Object from, to, frame, new_frame; +{ + Lisp_Object lface, copy; + + CHECK_SYMBOL (from, 0); + CHECK_SYMBOL (to, 1); + if (NILP (new_frame)) + new_frame = frame; + + if (EQ (frame, Qt)) + { + /* Copy global definition of FROM. We don't make copies of + strings etc. because 20.2 didn't do it either. */ + lface = lface_from_face_name (NULL, from, 1); + copy = Finternal_make_lisp_face (to, Qnil); + } + else + { + /* Copy frame-local definition of FROM. */ + CHECK_LIVE_FRAME (frame, 2); + CHECK_LIVE_FRAME (new_frame, 3); + lface = lface_from_face_name (XFRAME (frame), from, 1); + copy = Finternal_make_lisp_face (to, new_frame); + } + + bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, + LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); + + return to; +} + + +DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, + Sinternal_set_lisp_face_attribute, 3, 4, 0, + "Set attribute ATTR of FACE to VALUE.\n\ +If optional argument FRAME is given, set the face attribute of face FACE\n\ +on that frame. If FRAME is t, set the attribute of the default for face\n\ +FACE (for new frames). If FRAME is omitted or nil, use the selected\n\ +frame.") + (face, attr, value, frame) + Lisp_Object face, attr, value, frame; +{ + Lisp_Object lface; + Lisp_Object old_value = Qnil; + int font_related_attr_p = 0; + + CHECK_SYMBOL (face, 0); + CHECK_SYMBOL (attr, 1); + + face = resolve_face_name (face); + + /* Set lface to the Lisp attribute vector of FACE. */ + if (EQ (frame, Qt)) + lface = lface_from_face_name (NULL, face, 1); + else + { + if (NILP (frame)) + frame = selected_frame; + + CHECK_LIVE_FRAME (frame, 3); + lface = lface_from_face_name (XFRAME (frame), face, 0); + + /* If a frame-local face doesn't exist yet, create one. */ + if (NILP (lface)) + lface = Finternal_make_lisp_face (face, frame); + } + + if (EQ (attr, QCfamily)) + { + if (!UNSPECIFIEDP (value)) + { + CHECK_STRING (value, 3); + if (XSTRING (value)->size == 0) + signal_error ("Invalid face family", value); + } + old_value = LFACE_FAMILY (lface); + LFACE_FAMILY (lface) = value; + font_related_attr_p = 1; + } + else if (EQ (attr, QCheight)) + { + if (!UNSPECIFIEDP (value)) + { + CHECK_NUMBER (value, 3); + if (XINT (value) <= 0) + signal_error ("Invalid face height", value); + } + old_value = LFACE_HEIGHT (lface); + LFACE_HEIGHT (lface) = value; + font_related_attr_p = 1; + } + else if (EQ (attr, QCweight)) + { + if (!UNSPECIFIEDP (value)) + { + CHECK_SYMBOL (value, 3); + if (face_numeric_weight (value) < 0) + signal_error ("Invalid face weight", value); + } + old_value = LFACE_WEIGHT (lface); + LFACE_WEIGHT (lface) = value; + font_related_attr_p = 1; + } + else if (EQ (attr, QCslant)) + { + if (!UNSPECIFIEDP (value)) + { + CHECK_SYMBOL (value, 3); + if (face_numeric_slant (value) < 0) + signal_error ("Invalid face slant", value); + } + old_value = LFACE_SLANT (lface); + LFACE_SLANT (lface) = value; + font_related_attr_p = 1; + } + else if (EQ (attr, QCunderline)) + { + if (!UNSPECIFIEDP (value)) + if ((SYMBOLP (value) + && !EQ (value, Qt) + && !EQ (value, Qnil)) + /* Underline color. */ + || (STRINGP (value) + && XSTRING (value)->size == 0)) + signal_error ("Invalid face underline", value); + + old_value = LFACE_UNDERLINE (lface); + LFACE_UNDERLINE (lface) = value; + } + else if (EQ (attr, QCoverline)) + { + if (!UNSPECIFIEDP (value)) + if ((SYMBOLP (value) + && !EQ (value, Qt) + && !EQ (value, Qnil)) + /* Overline color. */ + || (STRINGP (value) + && XSTRING (value)->size == 0)) + signal_error ("Invalid face overline", value); + + old_value = LFACE_OVERLINE (lface); + LFACE_OVERLINE (lface) = value; + } + else if (EQ (attr, QCstrike_through)) + { + if (!UNSPECIFIEDP (value)) + if ((SYMBOLP (value) + && !EQ (value, Qt) + && !EQ (value, Qnil)) + /* Strike-through color. */ + || (STRINGP (value) + && XSTRING (value)->size == 0)) + signal_error ("Invalid face strike-through", value); + + old_value = LFACE_STRIKE_THROUGH (lface); + LFACE_STRIKE_THROUGH (lface) = value; + } + else if (EQ (attr, QCbox)) + { + int valid_p; + + /* Allow t meaning a simple box of width 1 in foreground color + of the face. */ + if (EQ (value, Qt)) + value = make_number (1); + + if (UNSPECIFIEDP (value)) + valid_p = 1; + else if (NILP (value)) + valid_p = 1; + else if (INTEGERP (value)) + valid_p = XINT (value) > 0; + else if (STRINGP (value)) + valid_p = XSTRING (value)->size > 0; + else if (CONSP (value)) + { + Lisp_Object tem; + + tem = value; + while (CONSP (tem)) + { + Lisp_Object k, v; + + k = XCAR (tem); + tem = XCDR (tem); + if (!CONSP (tem)) + break; + v = XCAR (tem); + tem = XCDR (tem); + + if (EQ (k, QCline_width)) + { + if (!INTEGERP (v) || XINT (v) <= 0) + break; + } + else if (EQ (k, QCcolor)) + { + if (!STRINGP (v) || XSTRING (v)->size == 0) + break; + } + else if (EQ (k, QCstyle)) + { + if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) + break; + } + else + break; + } + + valid_p = NILP (tem); + } + else + valid_p = 0; + + if (!valid_p) + signal_error ("Invalid face box", value); + + old_value = LFACE_BOX (lface); + LFACE_BOX (lface) = value; + } + else if (EQ (attr, QCinverse_video) + || EQ (attr, QCreverse_video)) + { + if (!UNSPECIFIEDP (value)) + { + CHECK_SYMBOL (value, 3); + if (!EQ (value, Qt) && !NILP (value)) + signal_error ("Invalid inverse-video face attribute value", value); + } + old_value = LFACE_INVERSE (lface); + LFACE_INVERSE (lface) = value; + } + else if (EQ (attr, QCforeground)) + { + if (!UNSPECIFIEDP (value)) + { + /* Don't check for valid color names here because it depends + on the frame (display) whether the color will be valid + when the face is realized. */ + CHECK_STRING (value, 3); + if (XSTRING (value)->size == 0) + signal_error ("Empty foreground color value", value); + } + old_value = LFACE_FOREGROUND (lface); + LFACE_FOREGROUND (lface) = value; + } + else if (EQ (attr, QCbackground)) + { + if (!UNSPECIFIEDP (value)) + { + /* Don't check for valid color names here because it depends + on the frame (display) whether the color will be valid + when the face is realized. */ + CHECK_STRING (value, 3); + if (XSTRING (value)->size == 0) + signal_error ("Empty background color value", value); + } + old_value = LFACE_BACKGROUND (lface); + LFACE_BACKGROUND (lface) = value; + } + else if (EQ (attr, QCstipple)) + { + if (!UNSPECIFIEDP (value) + && !NILP (value) + && NILP (Fbitmap_spec_p (value))) + signal_error ("Invalid stipple attribute", value); + old_value = LFACE_STIPPLE (lface); + LFACE_STIPPLE (lface) = value; + } + else if (EQ (attr, QCwidth)) + { + if (!UNSPECIFIEDP (value)) + { + CHECK_SYMBOL (value, 3); + if (face_numeric_swidth (value) < 0) + signal_error ("Invalid face width", value); + } + old_value = LFACE_SWIDTH (lface); + LFACE_SWIDTH (lface) = value; + font_related_attr_p = 1; + } + else if (EQ (attr, QCfont)) + { + /* Set font-related attributes of the Lisp face from an + XLFD font name. */ + struct frame *f; + + CHECK_STRING (value, 3); + if (EQ (frame, Qt)) + f = SELECTED_FRAME (); + else + f = check_x_frame (frame); + + if (!set_lface_from_font_name (f, lface, XSTRING (value)->data, 1, 1)) + signal_error ("Invalid font name", value); + + font_related_attr_p = 1; + } + else if (EQ (attr, QCbold)) + { + old_value = LFACE_WEIGHT (lface); + LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; + font_related_attr_p = 1; + } + else if (EQ (attr, QCitalic)) + { + old_value = LFACE_SLANT (lface); + LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; + font_related_attr_p = 1; + } + else + signal_error ("Invalid face attribute name", attr); + + /* Changing a named face means that all realized faces depending on + that face are invalid. Since we cannot tell which realized faces + depend on the face, make sure they are all removed. This is done + by incrementing face_change_count. The next call to + init_iterator will then free realized faces. */ + if (!EQ (frame, Qt) + && (EQ (attr, QCfont) + || NILP (Fequal (old_value, value)))) + { + ++face_change_count; + ++windows_or_buffers_changed; + } + + + if (!EQ (frame, Qt) + && !UNSPECIFIEDP (value) + && NILP (Fequal (old_value, value))) + { + Lisp_Object param; + + param = Qnil; + + if (EQ (face, Qdefault)) + { + /* Changed font-related attributes of the `default' face are + reflected in changed `font' frame parameters. */ + if (font_related_attr_p + && lface_fully_specified_p (XVECTOR (lface)->contents)) + set_font_frame_param (frame, lface); + else if (EQ (attr, QCforeground)) + param = Qforeground_color; + else if (EQ (attr, QCbackground)) + param = Qbackground_color; + } +#if 0 /* NTEMACS_TODO : Scroll bar colors on W32? */ + else if (EQ (face, Qscroll_bar)) + { + /* Changing the colors of `scroll-bar' sets frame parameters + `scroll-bar-foreground' and `scroll-bar-background'. */ + if (EQ (attr, QCforeground)) + param = Qscroll_bar_foreground; + else if (EQ (attr, QCbackground)) + param = Qscroll_bar_background; + } +#endif /* NTEMACS_TODO */ + else if (EQ (face, Qborder)) + { + /* Changing background color of `border' sets frame parameter + `border-color'. */ + if (EQ (attr, QCbackground)) + param = Qborder_color; + } + else if (EQ (face, Qcursor)) + { + /* Changing background color of `cursor' sets frame parameter + `cursor-color'. */ + if (EQ (attr, QCbackground)) + param = Qcursor_color; + } + else if (EQ (face, Qmouse)) + { + /* Changing background color of `mouse' sets frame parameter + `mouse-color'. */ + if (EQ (attr, QCbackground)) + param = Qmouse_color; + } + + if (SYMBOLP (param)) + Fmodify_frame_parameters (frame, Fcons (Fcons (param, value), Qnil)); + } + + + return face; +} + + +/* Set the `font' frame parameter of FRAME according to `default' face + attributes LFACE. */ + +static void +set_font_frame_param (frame, lface) + Lisp_Object frame, lface; +{ + struct frame *f = XFRAME (frame); + Lisp_Object frame_font; + int fontset; + char *font; + + /* Get FRAME's font parameter. */ + frame_font = Fassq (Qfont, f->param_alist); + xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); + frame_font = XCDR (frame_font); + + fontset = fs_query_fontset (f, XSTRING (frame_font)->data); + if (fontset >= 0) + { + /* Frame parameter is a fontset name. Modify the fontset so + that all its fonts reflect face attributes LFACE. */ + int charset; + struct fontset_info *fontset_info; + + fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; + + for (charset = 0; charset < MAX_CHARSET; ++charset) + if (fontset_info->fontname[charset]) + { + font = choose_face_fontset_font (f, XVECTOR (lface)->contents, + fontset, charset); + Fset_fontset_font (frame_font, CHARSET_SYMBOL (charset), + build_string (font), frame); + xfree (font); + } + } + else + { + /* Frame parameter is an X font name. I believe this can + only happen in unibyte mode. */ + font = choose_face_font (f, XVECTOR (lface)->contents, + -1, Vface_default_registry); + if (font) + { + store_frame_param (f, Qfont, build_string (font)); + xfree (font); + } + } +} + + +/* Update the corresponding face when frame parameter PARAM on frame F + has been assigned the value NEW_VALUE. */ + +void +update_face_from_frame_parameter (f, param, new_value) + struct frame *f; + Lisp_Object param, new_value; +{ + Lisp_Object lface; + + /* If there are no faces yet, give up. This is the case when called + from Fx_create_frame, and we do the necessary things later in + face-set-after-frame-defaults. */ + if (NILP (f->face_alist)) + return; + + if (EQ (param, Qforeground_color)) + { + lface = lface_from_face_name (f, Qdefault, 1); + LFACE_FOREGROUND (lface) = (STRINGP (new_value) + ? new_value : Qunspecified); + realize_basic_faces (f); + } + else if (EQ (param, Qbackground_color)) + { + Lisp_Object frame; + + /* Changing the background color might change the background + mode, so that we have to load new defface specs. Call + frame-update-face-colors to do that. */ + XSETFRAME (frame, f); + call1 (Qframe_update_face_colors, frame); + + lface = lface_from_face_name (f, Qdefault, 1); + LFACE_BACKGROUND (lface) = (STRINGP (new_value) + ? new_value : Qunspecified); + realize_basic_faces (f); + } + if (EQ (param, Qborder_color)) + { + lface = lface_from_face_name (f, Qborder, 1); + LFACE_BACKGROUND (lface) = (STRINGP (new_value) + ? new_value : Qunspecified); + } + else if (EQ (param, Qcursor_color)) + { + lface = lface_from_face_name (f, Qcursor, 1); + LFACE_BACKGROUND (lface) = (STRINGP (new_value) + ? new_value : Qunspecified); + } + else if (EQ (param, Qmouse_color)) + { + lface = lface_from_face_name (f, Qmouse, 1); + LFACE_BACKGROUND (lface) = (STRINGP (new_value) + ? new_value : Qunspecified); + } +} + + +/* Get the value of X resource RESOURCE, class CLASS for the display + of frame FRAME. This is here because ordinary `x-get-resource' + doesn't take a frame argument. */ + +DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, + Sinternal_face_x_get_resource, 3, 3, 0, "") + (resource, class, frame) + Lisp_Object resource, class, frame; +{ +#if 0 /* NTEMACS_TODO : W32 resources */ + Lisp_Object value; + CHECK_STRING (resource, 0); + CHECK_STRING (class, 1); + CHECK_LIVE_FRAME (frame, 2); + BLOCK_INPUT; + value = display_x_get_resource (FRAME_W32_DISPLAY_INFO (XFRAME (frame)), + resource, class, Qnil, Qnil); + UNBLOCK_INPUT; + return value; +#endif /* NTEMACS_TODO */ + return Qnil; +} + + +/* Return resource string VALUE as a boolean value, i.e. nil, or t. + If VALUE is "on" or "true", return t. If VALUE is "off" or + "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an + error; if SIGNAL_P is zero, return 0. */ + +static Lisp_Object +face_boolean_x_resource_value (value, signal_p) + Lisp_Object value; + int signal_p; +{ + Lisp_Object result = make_number (0); + + xassert (STRINGP (value)); + + if (xstricmp (XSTRING (value)->data, "on") == 0 + || xstricmp (XSTRING (value)->data, "true") == 0) + result = Qt; + else if (xstricmp (XSTRING (value)->data, "off") == 0 + || xstricmp (XSTRING (value)->data, "false") == 0) + result = Qnil; + else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) + result = Qunspecified; + else if (signal_p) + signal_error ("Invalid face attribute value from X resource", value); + + return result; +} + + +DEFUN ("internal-set-lisp-face-attribute-from-resource", + Finternal_set_lisp_face_attribute_from_resource, + Sinternal_set_lisp_face_attribute_from_resource, + 3, 4, 0, "") + (face, attr, value, frame) + Lisp_Object face, attr, value, frame; +{ + CHECK_SYMBOL (face, 0); + CHECK_SYMBOL (attr, 1); + CHECK_STRING (value, 2); + + if (xstricmp (XSTRING (value)->data, "unspecified") == 0) + value = Qunspecified; + else if (EQ (attr, QCheight)) + { + value = Fstring_to_number (value, make_number (10)); + if (XINT (value) <= 0) + signal_error ("Invalid face height from X resource", value); + } + else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) + value = face_boolean_x_resource_value (value, 1); + else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) + value = intern (XSTRING (value)->data); + else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) + value = face_boolean_x_resource_value (value, 1); + else if (EQ (attr, QCunderline) + || EQ (attr, QCoverline) + || EQ (attr, QCstrike_through) + || EQ (attr, QCbox)) + { + Lisp_Object boolean_value; + + /* If the result of face_boolean_x_resource_value is t or nil, + VALUE does NOT specify a color. */ + boolean_value = face_boolean_x_resource_value (value, 0); + if (SYMBOLP (boolean_value)) + value = boolean_value; + } + + return Finternal_set_lisp_face_attribute (face, attr, value, frame); +} + + +DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, + Sinternal_get_lisp_face_attribute, + 2, 3, 0, + "Return face attribute KEYWORD of face SYMBOL.\n\ +If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ +face attribute name, signal an error.\n\ +If the optional argument FRAME is given, report on face FACE in that\n\ +frame. If FRAME is t, report on the defaults for face FACE (for new\n\ +frames). If FRAME is omitted or nil, use the selected frame.") + (symbol, keyword, frame) + Lisp_Object symbol, keyword, frame; +{ + Lisp_Object lface, value = Qnil; + + CHECK_SYMBOL (symbol, 0); + CHECK_SYMBOL (keyword, 1); + + if (EQ (frame, Qt)) + lface = lface_from_face_name (NULL, symbol, 1); + else + { + if (NILP (frame)) + frame = selected_frame; + CHECK_LIVE_FRAME (frame, 2); + lface = lface_from_face_name (XFRAME (frame), symbol, 1); + } + + if (EQ (keyword, QCfamily)) + value = LFACE_FAMILY (lface); + else if (EQ (keyword, QCheight)) + value = LFACE_HEIGHT (lface); + else if (EQ (keyword, QCweight)) + value = LFACE_WEIGHT (lface); + else if (EQ (keyword, QCslant)) + value = LFACE_SLANT (lface); + else if (EQ (keyword, QCunderline)) + value = LFACE_UNDERLINE (lface); + else if (EQ (keyword, QCoverline)) + value = LFACE_OVERLINE (lface); + else if (EQ (keyword, QCstrike_through)) + value = LFACE_STRIKE_THROUGH (lface); + else if (EQ (keyword, QCbox)) + value = LFACE_BOX (lface); + else if (EQ (keyword, QCinverse_video) + || EQ (keyword, QCreverse_video)) + value = LFACE_INVERSE (lface); + else if (EQ (keyword, QCforeground)) + value = LFACE_FOREGROUND (lface); + else if (EQ (keyword, QCbackground)) + value = LFACE_BACKGROUND (lface); + else if (EQ (keyword, QCstipple)) + value = LFACE_STIPPLE (lface); + else if (EQ (keyword, QCwidth)) + value = LFACE_SWIDTH (lface); + else + signal_error ("Invalid face attribute name", keyword); + + return value; +} + + +DEFUN ("internal-lisp-face-attribute-values", + Finternal_lisp_face_attribute_values, + Sinternal_lisp_face_attribute_values, 1, 1, 0, + "Return a list of valid discrete values for face attribute ATTR.\n\ +Value is nil if ATTR doesn't have a discrete set of valid values.") + (attr) + Lisp_Object attr; +{ + Lisp_Object result = Qnil; + + CHECK_SYMBOL (attr, 0); + + if (EQ (attr, QCweight) + || EQ (attr, QCslant) + || EQ (attr, QCwidth)) + { + /* Extract permissible symbols from tables. */ + struct table_entry *table; + int i, dim; + + if (EQ (attr, QCweight)) + table = weight_table, dim = DIM (weight_table); + else if (EQ (attr, QCslant)) + table = slant_table, dim = DIM (slant_table); + else + table = swidth_table, dim = DIM (swidth_table); + + for (i = 0; i < dim; ++i) + { + Lisp_Object symbol = *table[i].symbol; + Lisp_Object tail = result; + + while (!NILP (tail) + && !EQ (XCAR (tail), symbol)) + tail = XCDR (tail); + + if (NILP (tail)) + result = Fcons (symbol, result); + } + } + else if (EQ (attr, QCunderline)) + result = Fcons (Qt, Fcons (Qnil, Qnil)); + else if (EQ (attr, QCoverline)) + result = Fcons (Qt, Fcons (Qnil, Qnil)); + else if (EQ (attr, QCstrike_through)) + result = Fcons (Qt, Fcons (Qnil, Qnil)); + else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) + result = Fcons (Qt, Fcons (Qnil, Qnil)); + + return result; +} + + +DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, + Sinternal_merge_in_global_face, 2, 2, 0, + "Add attributes from frame-default definition of FACE to FACE on FRAME.") + (face, frame) + Lisp_Object face, frame; +{ + Lisp_Object global_lface, local_lface; + CHECK_LIVE_FRAME (frame, 1); + global_lface = lface_from_face_name (NULL, face, 1); + local_lface = lface_from_face_name (XFRAME (frame), face, 0); + if (NILP (local_lface)) + local_lface = Finternal_make_lisp_face (face, frame); + merge_face_vectors (XVECTOR (global_lface)->contents, + XVECTOR (local_lface)->contents); + return face; +} + + +/* The following function is implemented for compatibility with 20.2. + The function is used in x-resolve-fonts when it is asked to + return fonts with the same size as the font of a face. This is + done in fontset.el. */ + +DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, + "Return the font name of face FACE, or nil if it is unspecified.\n\ +If the optional argument FRAME is given, report on face FACE in that frame.\n\ +If FRAME is t, report on the defaults for face FACE (for new frames).\n\ + The font default for a face is either nil, or a list\n\ + of the form (bold), (italic) or (bold italic).\n\ +If FRAME is omitted or nil, use the selected frame.") + (face, frame) + Lisp_Object face, frame; +{ + if (EQ (frame, Qt)) + { + Lisp_Object result = Qnil; + Lisp_Object lface = lface_from_face_name (NULL, face, 1); + + if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) + && !EQ (LFACE_WEIGHT (lface), Qnormal)) + result = Fcons (Qbold, result); + + if (!NILP (LFACE_SLANT (lface)) + && !EQ (LFACE_SLANT (lface), Qnormal)) + result = Fcons (Qitalic, result); + + return result; + } + else + { + struct frame *f = frame_or_selected_frame (frame, 1); + int face_id = lookup_named_face (f, face, CHARSET_ASCII); + struct face *face = FACE_FROM_ID (f, face_id); + return build_string (face->font_name); + } +} + + +/* Compare face vectors V1 and V2 for equality. Value is non-zero if + all attributes are `equal'. Tries to be fast because this function + is called quite often. */ + +static INLINE int +lface_equal_p (v1, v2) + Lisp_Object *v1, *v2; +{ + int i, equal_p = 1; + + for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) + { + Lisp_Object a = v1[i]; + Lisp_Object b = v2[i]; + + /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, + and the other is specified. */ + equal_p = XTYPE (a) == XTYPE (b); + if (!equal_p) + break; + + if (!EQ (a, b)) + { + switch (XTYPE (a)) + { + case Lisp_String: + equal_p = (XSTRING (a)->size == XSTRING (b)->size + && bcmp (XSTRING (a)->data, XSTRING (b)->data, + XSTRING (a)->size) == 0); + break; + + case Lisp_Int: + case Lisp_Symbol: + equal_p = 0; + break; + + default: + equal_p = !NILP (Fequal (a, b)); + break; + } + } + } + + return equal_p; +} + + +DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, + Sinternal_lisp_face_equal_p, 2, 3, 0, + "True if FACE1 and FACE2 are equal.\n\ +If the optional argument FRAME is given, report on face FACE in that frame.\n\ +If FRAME is t, report on the defaults for face FACE (for new frames).\n\ +If FRAME is omitted or nil, use the selected frame.") + (face1, face2, frame) + Lisp_Object face1, face2, frame; +{ + int equal_p; + struct frame *f; + Lisp_Object lface1, lface2; + + if (EQ (frame, Qt)) + f = NULL; + else + /* Don't use check_x_frame here because this function is called + before frames exist. At that time, if FRAME is nil, + selected_frame will be used which is the frame dumped with + Emacs. That frame is not a GUI frame. */ + f = frame_or_selected_frame (frame, 2); + + lface1 = lface_from_face_name (NULL, face1, 1); + lface2 = lface_from_face_name (NULL, face2, 1); + equal_p = lface_equal_p (XVECTOR (lface1)->contents, + XVECTOR (lface2)->contents); + return equal_p ? Qt : Qnil; +} + + +DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, + Sinternal_lisp_face_empty_p, 1, 2, 0, + "True if FACE has no attribute specified.\n\ +If the optional argument FRAME is given, report on face FACE in that frame.\n\ +If FRAME is t, report on the defaults for face FACE (for new frames).\n\ +If FRAME is omitted or nil, use the selected frame.") + (face, frame) + Lisp_Object face, frame; +{ + struct frame *f; + Lisp_Object lface; + int i; + + if (NILP (frame)) + frame = selected_frame; + CHECK_LIVE_FRAME (frame, 0); + f = XFRAME (frame); + + if (EQ (frame, Qt)) + lface = lface_from_face_name (NULL, face, 1); + else + lface = lface_from_face_name (f, face, 1); + + for (i = 1; i < LFACE_VECTOR_SIZE; ++i) + if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) + break; + + return i == LFACE_VECTOR_SIZE ? Qt : Qnil; +} + + +DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, + 0, 1, 0, + "Return an alist of frame-local faces defined on FRAME.\n\ +For internal use only.") + (frame) + Lisp_Object frame; +{ + struct frame *f = frame_or_selected_frame (frame, 0); + return f->face_alist; +} + + +/* Return a hash code for Lisp string STRING with case ignored. Used + below in computing a hash value for a Lisp face. */ + +static INLINE unsigned +hash_string_case_insensitive (string) + Lisp_Object string; +{ + unsigned char *s; + unsigned hash = 0; + xassert (STRINGP (string)); + for (s = XSTRING (string)->data; *s; ++s) + hash = (hash << 1) ^ tolower (*s); + return hash; +} + + +/* Return a hash code for face attribute vector V. */ + +static INLINE unsigned +lface_hash (v) + Lisp_Object *v; +{ + return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) + ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) + ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) + ^ (unsigned) v[LFACE_WEIGHT_INDEX] + ^ (unsigned) v[LFACE_SLANT_INDEX] + ^ (unsigned) v[LFACE_SWIDTH_INDEX] + ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); +} + + +/* Return non-zero if LFACE1 and LFACE2 specify the same font (without + considering charsets/registries). They do if they specify the same + family, point size, weight, width and slant. Both LFACE1 and + LFACE2 must be fully-specified. */ + +static INLINE int +lface_same_font_attributes_p (lface1, lface2) + Lisp_Object *lface1, *lface2; +{ + xassert (lface_fully_specified_p (lface1) + && lface_fully_specified_p (lface2)); + return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, + XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 + && (XFASTINT (lface1[LFACE_HEIGHT_INDEX]) + == XFASTINT (lface2[LFACE_HEIGHT_INDEX])) + && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) + && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) + && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX])); +} + + -/* Return non-zero if FONT1 and FONT2 have the same width. - We do not check the height, because we can now deal with - different heights. - We assume that they're both character-cell fonts. */ +/*********************************************************************** + Realized Faces + ***********************************************************************/ -int -same_size_fonts (font1, font2) - XFontStruct *font1, *font2; +/* Allocate and return a new realized face for Lisp face attribute + vector ATTR, charset CHARSET, and registry REGISTRY. */ + +static struct face * +make_realized_face (attr, charset, registry) + Lisp_Object *attr; + int charset; + Lisp_Object registry; +{ + struct face *face = (struct face *) xmalloc (sizeof *face); + bzero (face, sizeof *face); + face->charset = charset; + face->registry = registry; + bcopy (attr, face->lface, sizeof face->lface); + return face; +} + + +/* Free realized face FACE, including its X resources. FACE may + be null. */ + +static void +free_realized_face (f, face) + struct frame *f; + struct face *face; { - return (FONT_WIDTH(font1) == FONT_WIDTH(font2)); + if (face) + { + if (FRAME_WINDOW_P (f)) + { + if (face->gc) + { + x_free_gc (f, face->gc); + face->gc = 0; + } + + free_face_colors (f, face); + x_destroy_bitmap (f, face->stipple); + } + + xfree (face); + } +} + + +/* Prepare face FACE for subsequent display on frame F. This + allocated GCs if they haven't been allocated yet or have been freed + by clearing the face cache. */ + +void +prepare_face_for_display (f, face) + struct frame *f; + struct face *face; +{ + xassert (FRAME_WINDOW_P (f)); + + if (face->gc == 0) + { + XGCValues xgcv; + unsigned long mask = GCForeground | GCBackground; + + xgcv.foreground = face->foreground; + xgcv.background = face->background; + + /* The font of FACE may be null if we couldn't load it. */ + if (face->font) + { + xgcv.font = face->font; + mask |= GCFont; + } + + BLOCK_INPUT; + if (face->stipple) + { +#if 0 /* NTEMACS_TODO: XGCValues not fully simulated */ + xgcv.fill_style = FillOpaqueStippled; + xgcv.stipple = x_bitmap_pixmap (f, face->stipple); + mask |= GCFillStyle | GCStipple; +#endif /* NTEMACS_TODO */ + } + + face->gc = x_create_gc (f, mask, &xgcv); + UNBLOCK_INPUT; + } } -/* Update the line_height of frame F according to the biggest font in - any face. Return nonzero if if line_height changes. */ + +/* Non-zero if FACE is suitable for displaying ISO8859-1. Used in + macro FACE_SUITABLE_FOR_CHARSET_P to avoid realizing a new face for + ISO8859-1 if the ASCII face suffices. */ int -frame_update_line_height (f) - FRAME_PTR f; +face_suitable_for_iso8859_1_p (face) + struct face *face; { - int i; - int fontset = FRAME_FONTSET (f); - int biggest = (fontset > 0 - ? FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height - : FONT_HEIGHT (FRAME_FONT (f))); - - for (i = 0; i < FRAME_N_PARAM_FACES (f); i++) - if (FRAME_PARAM_FACES (f)[i] != 0 - && FRAME_PARAM_FACES (f)[i]->font != (XFontStruct *) FACE_DEFAULT) - { - int height = ((fontset = - FRAME_PARAM_FACES (f)[i]->fontset) > 0 - ? FRAME_FONTSET_DATA (f)->fontset_table[fontset]->height - : FONT_HEIGHT - (FRAME_PARAM_FACES (f)[i]->font)); - if (height > biggest) - biggest = height; - } + int len = strlen (face->font_name); + return len >= 9 && xstricmp (face->font_name + len - 9, "iso8859-1") == 0; +} - if (biggest == FRAME_LINE_HEIGHT (f)) - return 0; - FRAME_LINE_HEIGHT (f) = biggest; - return 1; +/* Value is non-zero if FACE is suitable for displaying characters + of CHARSET. CHARSET < 0 means unibyte text. */ + +INLINE int +face_suitable_for_charset_p (face, charset) + struct face *face; + int charset; +{ + int suitable_p = 0; + + if (charset < 0) + { + if (EQ (face->registry, Vface_default_registry) + || !NILP (Fequal (face->registry, Vface_default_registry))) + suitable_p = 1; + } + else if (face->charset == charset) + suitable_p = 1; + else if (face->charset == CHARSET_ASCII + && charset == charset_latin_iso8859_1) + suitable_p = face_suitable_for_iso8859_1_p (face); + else if (face->charset == charset_latin_iso8859_1 + && charset == CHARSET_ASCII) + suitable_p = 1; + + return suitable_p; } + + -/* Modify face TO by copying from FROM all properties which have - nondefault settings. */ +/*********************************************************************** + Face Cache + ***********************************************************************/ + +/* Return a new face cache for frame F. */ -static void -merge_faces (from, to) - struct face *from, *to; +static struct face_cache * +make_face_cache (f) + struct frame *f; { - /* Only merge the font if it's the same width as the base font. - Otherwise ignore it, since we can't handle it properly. */ - if (from->font != (XFontStruct *) FACE_DEFAULT - && same_size_fonts (from->font, to->font)) - to->font = from->font; - if (from->fontset != -1) - to->fontset = from->fontset; - if (from->foreground != FACE_DEFAULT) - to->foreground = from->foreground; - if (from->background != FACE_DEFAULT) - to->background = from->background; - if (from->stipple != FACE_DEFAULT) + struct face_cache *c; + int size; + + c = (struct face_cache *) xmalloc (sizeof *c); + bzero (c, sizeof *c); + size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; + c->buckets = (struct face **) xmalloc (size); + bzero (c->buckets, size); + c->size = 50; + c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); + c->f = f; + return c; +} + + +/* Clear out all graphics contexts for all realized faces, except for + the basic faces. This should be done from time to time just to avoid + keeping too many graphics contexts that are no longer needed. */ + +static void +clear_face_gcs (c) + struct face_cache *c; +{ + if (c && FRAME_WINDOW_P (c->f)) { - to->stipple = from->stipple; - to->pixmap_h = from->pixmap_h; - to->pixmap_w = from->pixmap_w; + int i; + for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) + { + struct face *face = c->faces_by_id[i]; + if (face && face->gc) + { + x_free_gc (c->f, face->gc); + face->gc = 0; + } + } } - if (from->underline) - to->underline = from->underline; } -/* Set up the basic set of facial parameters, based on the frame's - data; all faces are deltas applied to this. */ + +/* Free all realized faces in face cache C, including basic faces. C + may be null. If faces are freed, make sure the frame's current + matrix is marked invalid, so that a display caused by an expose + event doesn't try to use faces we destroyed. */ static void -compute_base_face (f, face) - FRAME_PTR f; +free_realized_faces (c) + struct face_cache *c; +{ + if (c && c->used) + { + int i, size; + struct frame *f = c->f; + + for (i = 0; i < c->used; ++i) + { + free_realized_face (f, c->faces_by_id[i]); + c->faces_by_id[i] = NULL; + } + + c->used = 0; + size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; + bzero (c->buckets, size); + + /* Must do a thorough redisplay the next time. Mark current + matrices as invalid because they will reference faces freed + above. This function is also called when a frame is + destroyed. In this case, the root window of F is nil. */ + if (WINDOWP (f->root_window)) + { + clear_current_matrices (f); + ++windows_or_buffers_changed; + } + } +} + + +/* Free all realized faces on FRAME or on all frames if FRAME is nil. + This is done after attributes of a named face have been changed, + because we can't tell which realized faces depend on that face. */ + +void +free_all_realized_faces (frame) + Lisp_Object frame; +{ + if (NILP (frame)) + { + Lisp_Object rest; + FOR_EACH_FRAME (rest, frame) + free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); + } + else + free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); +} + + +/* Free face cache C and faces in it, including their X resources. */ + +static void +free_face_cache (c) + struct face_cache *c; +{ + if (c) + { + free_realized_faces (c); + xfree (c->buckets); + xfree (c->faces_by_id); + xfree (c); + } +} + + +/* Cache realized face FACE in face cache C. HASH is the hash value + of FACE. If FACE->fontset >= 0, add the new face to the end of the + collision list of the face hash table of C. This is done because + otherwise lookup_face would find FACE for every charset, even if + faces with the same attributes but for specific charsets exist. */ + +static void +cache_face (c, face, hash) + struct face_cache *c; + struct face *face; + unsigned hash; +{ + int i = hash % FACE_CACHE_BUCKETS_SIZE; + + face->hash = hash; + + if (face->fontset >= 0) + { + struct face *last = c->buckets[i]; + if (last) + { + while (last->next) + last = last->next; + last->next = face; + face->prev = last; + face->next = NULL; + } + else + { + c->buckets[i] = face; + face->prev = face->next = NULL; + } + } + else + { + face->prev = NULL; + face->next = c->buckets[i]; + if (face->next) + face->next->prev = face; + c->buckets[i] = face; + } + + /* Find a free slot in C->faces_by_id and use the index of the free + slot as FACE->id. */ + for (i = 0; i < c->used; ++i) + if (c->faces_by_id[i] == NULL) + break; + face->id = i; + + /* Maybe enlarge C->faces_by_id. */ + if (i == c->used && c->used == c->size) + { + int new_size = 2 * c->size; + int sz = new_size * sizeof *c->faces_by_id; + c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); + c->size = new_size; + } + +#if GLYPH_DEBUG + /* Check that FACE got a unique id. */ + { + int j, n; + struct face *face; + + for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) + for (face = c->buckets[j]; face; face = face->next) + if (face->id == i) + ++n; + + xassert (n == 1); + } +#endif /* GLYPH_DEBUG */ + + c->faces_by_id[i] = face; + if (i == c->used) + ++c->used; +} + + +/* Remove face FACE from cache C. */ + +static void +uncache_face (c, face) + struct face_cache *c; struct face *face; { - face->gc = 0; - face->foreground = FRAME_FOREGROUND_PIXEL (f); - face->background = FRAME_BACKGROUND_PIXEL (f); - face->font = FRAME_FONT (f); - face->fontset = -1; - face->stipple = 0; - face->underline = 0; + int i = face->hash % FACE_CACHE_BUCKETS_SIZE; + + if (face->prev) + face->prev->next = face->next; + else + c->buckets[i] = face->next; + + if (face->next) + face->next->prev = face->prev; + + c->faces_by_id[face->id] = NULL; + if (face->id == c->used) + --c->used; +} + + +/* Look up a realized face with face attributes ATTR in the face cache + of frame F. The face will be used to display characters of + CHARSET. CHARSET < 0 means the face will be used to display + unibyte text. The value of face-default-registry is used to choose + a font for the face in that case. Value is the ID of the face + found. If no suitable face is found, realize a new one. */ + +INLINE int +lookup_face (f, attr, charset) + struct frame *f; + Lisp_Object *attr; + int charset; +{ + struct face_cache *c = FRAME_FACE_CACHE (f); + unsigned hash; + int i; + struct face *face; + + xassert (c != NULL); + check_lface_attrs (attr); + + /* Look up ATTR in the face cache. */ + hash = lface_hash (attr); + i = hash % FACE_CACHE_BUCKETS_SIZE; + + for (face = c->buckets[i]; face; face = face->next) + if (face->hash == hash + && (!FRAME_WINDOW_P (f) + || FACE_SUITABLE_FOR_CHARSET_P (face, charset)) + && lface_equal_p (face->lface, attr)) + break; + + /* If not found, realize a new face. */ + if (face == NULL) + { + face = realize_face (c, attr, charset); + cache_face (c, face, hash); + } + +#if GLYPH_DEBUG + xassert (face == FACE_FROM_ID (f, face->id)); + if (FRAME_WINDOW_P (f)) + xassert (charset < 0 || FACE_SUITABLE_FOR_CHARSET_P (face, charset)); +#endif /* GLYPH_DEBUG */ + + return face->id; } -/* Return the face ID to use to display a special glyph which selects - FACE_CODE as the face ID, assuming that ordinarily the face would - be CURRENT_FACE. F is the frame. */ + +/* Return the face id of the realized face for named face SYMBOL on + frame F suitable for displaying characters from CHARSET. CHARSET < + 0 means unibyte text. */ int -compute_glyph_face (f, face_code, current_face) +lookup_named_face (f, symbol, charset) struct frame *f; - int face_code, current_face; + Lisp_Object symbol; + int charset; { - struct face face; + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; + struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); + + get_lface_attributes (f, symbol, symbol_attrs, 1); + bcopy (default_face->lface, attrs, sizeof attrs); + merge_face_vectors (symbol_attrs, attrs); + return lookup_face (f, attrs, charset); +} - face = *FRAME_COMPUTED_FACES (f)[current_face]; - if (face_code >= 0 && face_code < FRAME_N_PARAM_FACES (f) - && FRAME_PARAM_FACES (f) [face_code] != 0) - merge_faces (FRAME_PARAM_FACES (f) [face_code], &face); +/* Return the ID of the realized ASCII face of Lisp face with ID + LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ - return intern_computed_face (f, &face); +int +ascii_face_of_lisp_face (f, lface_id) + struct frame *f; + int lface_id; +{ + int face_id; + + if (lface_id >= 0 && lface_id < lface_id_to_name_size) + { + Lisp_Object face_name = lface_id_to_name[lface_id]; + face_id = lookup_named_face (f, face_name, CHARSET_ASCII); + } + else + face_id = -1; + + return face_id; } -/* Return the face ID to use to display a special glyph which selects - FACE_CODE as the face ID, assuming that ordinarily the face would - be CURRENT_FACE. F is the frame. */ + +/* Return a face for charset ASCII that is like the face with id + FACE_ID on frame F, but has a font that is STEPS steps smaller. + STEPS < 0 means larger. Value is the id of the face. */ int -compute_glyph_face_1 (f, face_name, current_face) +smaller_face (f, face_id, steps) struct frame *f; - Lisp_Object face_name; - int current_face; + int face_id, steps; + { + struct face *face; + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + int pt, last_pt, last_height; + int delta; + int new_face_id; + struct face *new_face; + + /* If not called for an X frame, just return the original face. */ + if (FRAME_TERMCAP_P (f)) + return face_id; + + /* Try in increments of 1/2 pt. */ + delta = steps < 0 ? 5 : -5; + steps = abs (steps); + + face = FACE_FROM_ID (f, face_id); + bcopy (face->lface, attrs, sizeof attrs); + pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); + new_face_id = face_id; + last_height = FONT_HEIGHT (face->font); + + while (steps + && pt + delta > 0 + /* Give up if we cannot find a font within 10pt. */ + && abs (last_pt - pt) < 100) + { + /* Look up a face for a slightly smaller/larger font. */ + pt += delta; + attrs[LFACE_HEIGHT_INDEX] = make_number (pt); + new_face_id = lookup_face (f, attrs, CHARSET_ASCII); + new_face = FACE_FROM_ID (f, new_face_id); + + /* If height changes, count that as one step. */ + if (FONT_HEIGHT (new_face->font) != last_height) + { + --steps; + last_height = FONT_HEIGHT (new_face->font); + last_pt = pt; + } + } + + return new_face_id; +} + + +/* Return a face for charset ASCII that is like the face with id + FACE_ID on frame F, but has height HEIGHT. */ + +int +face_with_height (f, face_id, height) + struct frame *f; + int face_id; + int height; { - struct face face; + struct face *face; + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + + if (FRAME_TERMCAP_P (f) + || height <= 0) + return face_id; - face = *FRAME_COMPUTED_FACES (f)[current_face]; + face = FACE_FROM_ID (f, face_id); + bcopy (face->lface, attrs, sizeof attrs); + attrs[LFACE_HEIGHT_INDEX] = make_number (height); + face_id = lookup_face (f, attrs, CHARSET_ASCII); + + return face_id; +} - if (!NILP (face_name)) +/* Return the face id of the realized face for named face SYMBOL on + frame F suitable for displaying characters from CHARSET (CHARSET < + 0 means unibyte text), and use attributes of the face FACE_ID for + attributes that aren't completely specified by SYMBOL. This is + like lookup_named_face, except that the default attributes come + from FACE_ID, not from the default face. FACE_ID is assumed to + be already realized. */ + +int +lookup_derived_face (f, symbol, charset, face_id) + struct frame *f; + Lisp_Object symbol; + int charset; + int face_id; +{ + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; + struct face *default_face = FACE_FROM_ID (f, face_id); + + if (!default_face) + abort (); + + get_lface_attributes (f, symbol, symbol_attrs, 1); + bcopy (default_face->lface, attrs, sizeof attrs); + merge_face_vectors (symbol_attrs, attrs); + return lookup_face (f, attrs, charset); +} + + + +/*********************************************************************** + Font selection + ***********************************************************************/ + +DEFUN ("internal-set-font-selection-order", + Finternal_set_font_selection_order, + Sinternal_set_font_selection_order, 1, 1, 0, + "Set font selection order for face font selection to ORDER.\n\ +ORDER must be a list of length 4 containing the symbols `:width',\n\ +`:height', `:weight', and `:slant'. Face attributes appearing\n\ +first in ORDER are matched first, e.g. if `:height' appears before\n\ +`:weight' in ORDER, font selection first tries to find a font with\n\ +a suitable height, and then tries to match the font weight.\n\ +Value is ORDER.") + (order) + Lisp_Object order; +{ + Lisp_Object list; + int i; + int indices[4]; + + CHECK_LIST (order, 0); + bzero (indices, sizeof indices); + i = 0; + + for (list = order; + CONSP (list) && i < DIM (indices); + list = XCDR (list), ++i) { - int facecode = face_name_id_number (f, face_name); - if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) - && FRAME_PARAM_FACES (f) [facecode] != 0) - merge_faces (FRAME_PARAM_FACES (f) [facecode], &face); + Lisp_Object attr = XCAR (list); + int xlfd; + + if (EQ (attr, QCwidth)) + xlfd = XLFD_SWIDTH; + else if (EQ (attr, QCheight)) + xlfd = XLFD_POINT_SIZE; + else if (EQ (attr, QCweight)) + xlfd = XLFD_WEIGHT; + else if (EQ (attr, QCslant)) + xlfd = XLFD_SLANT; + else + break; + + if (indices[i] != 0) + break; + indices[i] = xlfd; + } + + if (!NILP (list) + || i != DIM (indices) + || indices[0] == 0 + || indices[1] == 0 + || indices[2] == 0 + || indices[3] == 0) + signal_error ("Invalid font sort order", order); + + if (bcmp (indices, font_sort_order, sizeof indices) != 0) + { + bcopy (indices, font_sort_order, sizeof font_sort_order); + free_all_realized_faces (Qnil); + } + + return Qnil; +} + + +DEFUN ("internal-set-alternative-font-family-alist", + Finternal_set_alternative_font_family_alist, + Sinternal_set_alternative_font_family_alist, 1, 1, 0, + "Define alternative font families to try in face font selection.\n\ +ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ +Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ +be found. Value is ALIST.") + (alist) + Lisp_Object alist; +{ + CHECK_LIST (alist, 0); + Vface_alternative_font_family_alist = alist; + free_all_realized_faces (Qnil); + return alist; +} + + +/* Return the X registry and encoding of font name FONT_NAME on frame F. + Value is nil if not successful. */ + +static Lisp_Object +deduce_unibyte_registry (f, font_name) + struct frame *f; + char *font_name; +{ + struct font_name font; + Lisp_Object registry = Qnil; + + font.name = STRDUPA (font_name); + if (split_font_name (f, &font, 0)) + { + char *buffer; + + /* Extract registry and encoding. */ + buffer = (char *) alloca (strlen (font.fields[XLFD_REGISTRY]) + + strlen (font.fields[XLFD_ENCODING]) + + 10); + strcpy (buffer, font.fields[XLFD_REGISTRY]); + strcat (buffer, "-"); + strcat (buffer, font.fields[XLFD_ENCODING]); + registry = build_string (buffer); } - return intern_computed_face (f, &face); + return registry; +} + + +/* Value is non-zero if FONT is the name of a scalable font. The + X11R6 XLFD spec says that point size, pixel size, and average width + are zero for scalable fonts. Intlfonts contain at least one + scalable font ("*-muleindian-1") for which this isn't true, so we + just test average width. Windows implementation of XLFD is + slightly broken for backward compatibility with previous broken + versions, so test for wildcards as well as 0. */ + +static int +font_scalable_p (font) + struct font_name *font; +{ + char *s = font->fields[XLFD_AVGWIDTH]; + return (*s == '0' && *(s + 1) == '\0') || *s == '*'; } + + +/* Value is non-zero if FONT1 is a better match for font attributes + VALUES than FONT2. VALUES is an array of face attribute values in + font sort order. COMPARE_PT_P zero means don't compare point + sizes. */ + +static int +better_font_p (values, font1, font2, compare_pt_p) + int *values; + struct font_name *font1, *font2; + int compare_pt_p; +{ + int i; + + for (i = 0; i < 4; ++i) + { + int xlfd_idx = font_sort_order[i]; + + if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) + { + int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); + int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); + + if (delta1 > delta2) + return 0; + else if (delta1 < delta2) + return 1; + else + { + /* The difference may be equal because, e.g., the face + specifies `italic' but we have only `regular' and + `oblique'. Prefer `oblique' in this case. */ + if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) + && font1->numeric[xlfd_idx] > values[i] + && font2->numeric[xlfd_idx] < values[i]) + return 1; + } + } + } + + return 0; +} + + +#if SCALABLE_FONTS + +/* Value is non-zero if FONT is an exact match for face attributes in + SPECIFIED. SPECIFIED is an array of face attribute values in font + sort order. */ + +static int +exact_face_match_p (specified, font) + int *specified; + struct font_name *font; +{ + int i; + + for (i = 0; i < 4; ++i) + if (specified[i] != font->numeric[font_sort_order[i]]) + break; + + return i == 4; +} + + +/* Value is the name of a scaled font, generated from scalable font + FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. + Value is allocated from heap. */ + +static char * +build_scalable_font_name (f, font, specified_pt) + struct frame *f; + struct font_name *font; + int specified_pt; +{ + char point_size[20], pixel_size[20]; + int pixel_value; + double resy = FRAME_W32_DISPLAY_INFO (f)->resy; + double pt; + + /* If scalable font is for a specific resolution, compute + the point size we must specify from the resolution of + the display and the specified resolution of the font. */ + if (font->numeric[XLFD_RESY] != 0) + { + pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; + pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; + } + else + { + pt = specified_pt; + pixel_value = resy / 720.0 * pt; + } + + /* Set point size of the font. */ + sprintf (point_size, "%d", (int) pt); + font->fields[XLFD_POINT_SIZE] = point_size; + font->numeric[XLFD_POINT_SIZE] = pt; + + /* Set pixel size. */ + sprintf (pixel_size, "%d", pixel_value); + font->fields[XLFD_PIXEL_SIZE] = pixel_size; + font->numeric[XLFD_PIXEL_SIZE] = pixel_value; + + /* If font doesn't specify its resolution, use the + resolution of the display. */ + if (font->numeric[XLFD_RESY] == 0) + { + char buffer[20]; + sprintf (buffer, "%d", (int) resy); + font->fields[XLFD_RESY] = buffer; + font->numeric[XLFD_RESY] = resy; + } + + if (strcmp (font->fields[XLFD_RESX], "0") == 0) + { + char buffer[20]; + int resx = FRAME_W32_DISPLAY_INFO (f)->resx; + sprintf (buffer, "%d", resx); + font->fields[XLFD_RESX] = buffer; + font->numeric[XLFD_RESX] = resx; + } + + return build_font_name (font); +} + + +/* Value is non-zero if we are allowed to use scalable font FONT. We + can't run a Lisp function here since this function may be called + with input blocked. */ + +static int +may_use_scalable_font_p (font, name) + struct font_name *font; + char *name; +{ + if (EQ (Vscalable_fonts_allowed, Qt)) + return 1; + else if (CONSP (Vscalable_fonts_allowed)) + { + Lisp_Object tail, regexp; + + for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) + { + regexp = XCAR (tail); + if (STRINGP (regexp) + && fast_c_string_match_ignore_case (regexp, name) >= 0) + return 1; + } + } + + return 0; +} + +#endif /* SCALABLE_FONTS != 0 */ + + +/* Return the name of the best matching font for face attributes + ATTRS in the array of font_name structures FONTS which contains + NFONTS elements. Value is a font name which is allocated from + the heap. FONTS is freed by this function. */ + +static char * +best_matching_font (f, attrs, fonts, nfonts) + struct frame *f; + Lisp_Object *attrs; + struct font_name *fonts; + int nfonts; +{ + char *font_name; + struct font_name *best; + int i, pt; + int specified[4]; + int exact_p; + + if (nfonts == 0) + return NULL; + + /* Make specified font attributes available in `specified', + indexed by sort order. */ + for (i = 0; i < DIM (font_sort_order); ++i) + { + int xlfd_idx = font_sort_order[i]; + + if (xlfd_idx == XLFD_SWIDTH) + specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); + else if (xlfd_idx == XLFD_POINT_SIZE) + specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); + else if (xlfd_idx == XLFD_WEIGHT) + specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); + else if (xlfd_idx == XLFD_SLANT) + specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); + else + abort (); + } + +#if SCALABLE_FONTS + + /* Set to 1 */ + exact_p = 0; + + /* Start with the first non-scalable font in the list. */ + for (i = 0; i < nfonts; ++i) + if (!font_scalable_p (fonts + i)) + break; + + /* Find the best match among the non-scalable fonts. */ + if (i < nfonts) + { + best = fonts + i; + + for (i = 1; i < nfonts; ++i) + if (!font_scalable_p (fonts + i) + && better_font_p (specified, fonts + i, best, 1)) + { + best = fonts + i; + + exact_p = exact_face_match_p (specified, best); + if (exact_p) + break; + } + + } + else + best = NULL; + + /* Unless we found an exact match among non-scalable fonts, see if + we can find a better match among scalable fonts. */ + if (!exact_p) + { + /* A scalable font is better if + + 1. its weight, slant, swidth attributes are better, or. + + 2. the best non-scalable font doesn't have the required + point size, and the scalable fonts weight, slant, swidth + isn't worse. */ + + int non_scalable_has_exact_height_p; + + if (best && best->numeric[XLFD_POINT_SIZE] == pt) + non_scalable_has_exact_height_p = 1; + else + non_scalable_has_exact_height_p = 0; + + for (i = 0; i < nfonts; ++i) + if (font_scalable_p (fonts + i)) + { + if (best == NULL + || better_font_p (specified, fonts + i, best, 0) + || (!non_scalable_has_exact_height_p + && !better_font_p (specified, best, fonts + i, 0))) + best = fonts + i; + } + } + + if (font_scalable_p (best)) + font_name = build_scalable_font_name (f, best, pt); + else + font_name = build_font_name (best); + +#else /* !SCALABLE_FONTS */ + + /* Find the best non-scalable font. */ + best = fonts; + + for (i = 1; i < nfonts; ++i) + { + xassert (!font_scalable_p (fonts + i)); + if (better_font_p (specified, fonts + i, best, 1)) + best = fonts + i; + } + + font_name = build_font_name (best); + +#endif /* !SCALABLE_FONTS */ + + /* Free font_name structures. */ + free_font_names (fonts, nfonts); + + return font_name; +} + + +/* Try to get a list of fonts on frame F with font family FAMILY and + registry/encoding REGISTRY. Return in *FONTS a pointer to a vector + of font_name structures for the fonts matched. Value is the number + of fonts found. */ + +static int +try_font_list (f, attrs, pattern, family, registry, fonts) + struct frame *f; + Lisp_Object *attrs; + char *pattern, *family, *registry; + struct font_name **fonts; +{ + int nfonts; + + if (family == NULL) + family = LSTRDUPA (attrs[LFACE_FAMILY_INDEX]); + + nfonts = font_list (f, pattern, family, registry, fonts); + + if (nfonts == 0) + { + Lisp_Object alter; + + /* Try alternative font families from + Vface_alternative_font_family_alist. */ + alter = Fassoc (build_string (family), + Vface_alternative_font_family_alist); + if (CONSP (alter)) + for (alter = XCDR (alter); + CONSP (alter) && nfonts == 0; + alter = XCDR (alter)) + { + if (STRINGP (XCAR (alter))) + { + family = LSTRDUPA (XCAR (alter)); + nfonts = font_list (f, NULL, family, registry, fonts); + } + } + + /* Try font family of the default face or "fixed". */ + if (nfonts == 0) + { + struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); + if (dflt) + family = LSTRDUPA (dflt->lface[LFACE_FAMILY_INDEX]); + else + family = "fixed"; + nfonts = font_list (f, NULL, family, registry, fonts); + } + + /* Try any family with the given registry. */ + if (nfonts == 0) + nfonts = font_list (f, NULL, "*", registry, fonts); + } + + return nfonts; +} + + +/* Return the registry and encoding pattern that fonts for CHARSET + should match. Value is allocated from the heap. */ + +char * +x_charset_registry (charset) + int charset; +{ + Lisp_Object prop, charset_plist; + char *registry; + + /* Get registry and encoding from the charset's plist. */ + charset_plist = CHARSET_TABLE_INFO (charset, CHARSET_PLIST_IDX); + prop = Fplist_get (charset_plist, Qx_charset_registry); + + if (STRINGP (prop)) + { + if (index (XSTRING (prop)->data, '-')) + registry = xstrdup (XSTRING (prop)->data); + else + { + /* If registry doesn't contain a `-', make it a pattern. */ + registry = (char *) xmalloc (STRING_BYTES (XSTRING (prop)) + 5); + strcpy (registry, XSTRING (prop)->data); + strcat (registry, "*-*"); + } + } + else if (STRINGP (Vface_default_registry)) + registry = xstrdup (XSTRING (Vface_default_registry)->data); + else + registry = xstrdup ("iso8859-1"); + + return registry; +} + + +/* Return the fontset id of the fontset name or alias name given by + the family attribute of ATTRS on frame F. Value is -1 if the + family attribute of ATTRS doesn't name a fontset. */ + +static int +face_fontset (f, attrs) + struct frame *f; + Lisp_Object *attrs; +{ + Lisp_Object name = attrs[LFACE_FAMILY_INDEX]; + int fontset; + + name = Fquery_fontset (name, Qnil); + if (NILP (name)) + fontset = -1; + else + fontset = fs_query_fontset (f, XSTRING (name)->data); + + return fontset; +} + + +/* Get the font to use for the face realizing the fully-specified Lisp + face ATTRS for charset CHARSET on frame F. CHARSET < 0 means + unibyte text; UNIBYTE_REGISTRY is the registry and encoding to use + in this case. Value is the font name which is allocated from the + heap (which means that it must be freed eventually). */ + +static char * +choose_face_font (f, attrs, charset, unibyte_registry) + struct frame *f; + Lisp_Object *attrs; + int charset; + Lisp_Object unibyte_registry; +{ + struct font_name *fonts; + int nfonts; + char *registry; + + /* ATTRS must be fully-specified. */ + xassert (lface_fully_specified_p (attrs)); + + if (STRINGP (unibyte_registry)) + registry = xstrdup (XSTRING (unibyte_registry)->data); + else + registry = x_charset_registry (charset); + + nfonts = try_font_list (f, attrs, NULL, NULL, registry, &fonts); + xfree (registry); + return best_matching_font (f, attrs, fonts, nfonts); +} + + +/* Choose a font to use on frame F to display CHARSET using FONTSET + with Lisp face attributes specified by ATTRS. CHARSET may be any + valid charset. CHARSET < 0 means unibyte text. If the fontset + doesn't contain a font pattern for charset, use the pattern for + CHARSET_ASCII. Value is the font name which is allocated from the + heap and must be freed by the caller. */ + +static char * +choose_face_fontset_font (f, attrs, fontset, charset) + struct frame *f; + Lisp_Object *attrs; + int fontset, charset; +{ + char *pattern; + char *font_name = NULL; + struct fontset_info *fontset_info; + struct font_name *fonts; + int nfonts; + + xassert (fontset >= 0 && fontset < FRAME_FONTSET_DATA (f)->n_fontsets); + + /* For unibyte text, use the ASCII font of the fontset. Using the + ASCII font seems to be the most reasonable thing we can do in + this case. */ + if (charset < 0) + charset = CHARSET_ASCII; + + /* Get the font name pattern to use for CHARSET from the fontset. */ + fontset_info = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; + pattern = fontset_info->fontname[charset]; + if (!pattern) + pattern = fontset_info->fontname[CHARSET_ASCII]; + xassert (pattern); + + /* Get a list of fonts matching that pattern and choose the + best match for the specified face attributes from it. */ + nfonts = try_font_list (f, attrs, pattern, NULL, NULL, &fonts); + font_name = best_matching_font (f, attrs, fonts, nfonts); + return font_name; +} + + -/* Return the face ID associated with a buffer position POS. - Store into *ENDPTR the position at which a different face is needed. - This does not take account of glyphs that specify their own face codes. - F is the frame in use for display, and W is a window displaying - the current buffer. +/*********************************************************************** + Face Realization + ***********************************************************************/ + +/* Realize basic faces on frame F. Value is zero if frame parameters + of F don't contain enough information needed to realize the default + face. */ + +static int +realize_basic_faces (f) + struct frame *f; +{ + int success_p = 0; + + if (realize_default_face (f)) + { + realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); + realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); + realize_named_face (f, Qfringe, BITMAP_AREA_FACE_ID); + realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); + realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); + realize_named_face (f, Qborder, BORDER_FACE_ID); + realize_named_face (f, Qcursor, CURSOR_FACE_ID); + realize_named_face (f, Qmouse, MOUSE_FACE_ID); + realize_named_face (f, Qmenu, MENU_FACE_ID); + success_p = 1; + } + + return success_p; +} - REGION_BEG, REGION_END delimit the region, so it can be highlighted. - LIMIT is a position not to scan beyond. That is to limit - the time this function can take. +/* Realize the default face on frame F. If the face is not fully + specified, make it fully-specified. Attributes of the default face + that are not explicitly specified are taken from frame parameters. */ + +static int +realize_default_face (f) + struct frame *f; +{ + struct face_cache *c = FRAME_FACE_CACHE (f); + Lisp_Object lface; + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + Lisp_Object unibyte_registry; + Lisp_Object frame_font; + struct face *face; + int fontset; + + /* If the `default' face is not yet known, create it. */ + lface = lface_from_face_name (f, Qdefault, 0); + if (NILP (lface)) + { + Lisp_Object frame; + XSETFRAME (frame, f); + lface = Finternal_make_lisp_face (Qdefault, frame); + } + + if (FRAME_WINDOW_P (f)) + { + /* Set frame_font to the value of the `font' frame parameter. */ + frame_font = Fassq (Qfont, f->param_alist); + xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); + frame_font = XCDR (frame_font); + + fontset = fs_query_fontset (f, XSTRING (frame_font)->data); + if (fontset >= 0) + { + /* If frame_font is a fontset name, don't use that for + determining font-related attributes of the default face + because it is just an artificial name. Use the ASCII font of + the fontset, instead. */ + struct font_info *font_info; + struct font_name font; + + BLOCK_INPUT; + font_info = FS_LOAD_FONT (f, FRAME_W32_FONT_TABLE (f), CHARSET_ASCII, + NULL, fontset); + UNBLOCK_INPUT; + + /* Set weight etc. from the ASCII font. */ + if (!set_lface_from_font_name (f, lface, font_info->full_name, 0, 0)) + return 0; + + /* Remember registry and encoding of the frame font. */ + unibyte_registry = deduce_unibyte_registry (f, font_info->full_name); + if (STRINGP (unibyte_registry)) + Vface_default_registry = unibyte_registry; + else + Vface_default_registry = build_string ("iso8859-1"); + + /* But set the family to the fontset alias name. Implementation + note: When a font is passed to Emacs via `-fn FONT', a + fontset is created in `x-win.el' whose name ends in + `fontset-startup'. This fontset has an alias name that is + equal to frame_font. */ + xassert (STRINGP (frame_font)); + font.name = LSTRDUPA (frame_font); + + if (!split_font_name (f, &font, 1) + || xstricmp (font.fields[XLFD_REGISTRY], "fontset") != 0 + || xstricmp (font.fields[XLFD_ENCODING], "startup") != 0) + LFACE_FAMILY (lface) = frame_font; + } + else + { + /* Frame parameters contain a real font. Fill default face + attributes from that font. */ + if (!set_lface_from_font_name (f, lface, + XSTRING (frame_font)->data, 0, 0)) + return 0; + + /* Remember registry and encoding of the frame font. */ + unibyte_registry + = deduce_unibyte_registry (f, XSTRING (frame_font)->data); + if (STRINGP (unibyte_registry)) + Vface_default_registry = unibyte_registry; + else + Vface_default_registry = build_string ("iso8859-1"); + } + } + + if (!FRAME_WINDOW_P (f)) + { + LFACE_FAMILY (lface) = build_string ("default"); + LFACE_SWIDTH (lface) = Qnormal; + LFACE_HEIGHT (lface) = make_number (1); + LFACE_WEIGHT (lface) = Qnormal; + LFACE_SLANT (lface) = Qnormal; + } + + if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) + LFACE_UNDERLINE (lface) = Qnil; + + if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) + LFACE_OVERLINE (lface) = Qnil; + + if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) + LFACE_STRIKE_THROUGH (lface) = Qnil; + + if (UNSPECIFIEDP (LFACE_BOX (lface))) + LFACE_BOX (lface) = Qnil; + + if (UNSPECIFIEDP (LFACE_INVERSE (lface))) + LFACE_INVERSE (lface) = Qnil; + + if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) + { + /* This function is called so early that colors are not yet + set in the frame parameter list. */ + Lisp_Object color = Fassq (Qforeground_color, f->param_alist); + + if (CONSP (color) && STRINGP (XCDR (color))) + LFACE_FOREGROUND (lface) = XCDR (color); + else if (FRAME_WINDOW_P (f)) + return 0; + else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) + LFACE_FOREGROUND (lface) = build_string (unspecified_fg); + else + abort (); + } + + if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) + { + /* This function is called so early that colors are not yet + set in the frame parameter list. */ + Lisp_Object color = Fassq (Qbackground_color, f->param_alist); + if (CONSP (color) && STRINGP (XCDR (color))) + LFACE_BACKGROUND (lface) = XCDR (color); + else if (FRAME_WINDOW_P (f)) + return 0; + else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) + LFACE_BACKGROUND (lface) = build_string (unspecified_bg); + else + abort (); + } + + if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) + LFACE_STIPPLE (lface) = Qnil; + + /* Realize the face; it must be fully-specified now. */ + xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); + check_lface (lface); + bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); + face = realize_face (c, attrs, CHARSET_ASCII); + + /* Remove the former default face. */ + if (c->used > DEFAULT_FACE_ID) + { + struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); + uncache_face (c, default_face); + free_realized_face (f, default_face); + } + + /* Insert the new default face. */ + cache_face (c, face, lface_hash (attrs)); + xassert (face->id == DEFAULT_FACE_ID); + return 1; +} + + +/* Realize basic faces other than the default face in face cache C. + SYMBOL is the face name, ID is the face id the realized face must + have. The default face must have been realized already. */ + +static void +realize_named_face (f, symbol, id) + struct frame *f; + Lisp_Object symbol; + int id; +{ + struct face_cache *c = FRAME_FACE_CACHE (f); + Lisp_Object lface = lface_from_face_name (f, symbol, 0); + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; + struct face *new_face; + + /* The default face must exist and be fully specified. */ + get_lface_attributes (f, Qdefault, attrs, 1); + check_lface_attrs (attrs); + xassert (lface_fully_specified_p (attrs)); + + /* If SYMBOL isn't know as a face, create it. */ + if (NILP (lface)) + { + Lisp_Object frame; + XSETFRAME (frame, f); + lface = Finternal_make_lisp_face (symbol, frame); + } + + /* Merge SYMBOL's face with the default face. */ + get_lface_attributes (f, symbol, symbol_attrs, 1); + merge_face_vectors (symbol_attrs, attrs); + + /* Realize the face. */ + new_face = realize_face (c, attrs, CHARSET_ASCII); + + /* Remove the former face. */ + if (c->used > id) + { + struct face *old_face = c->faces_by_id[id]; + uncache_face (c, old_face); + free_realized_face (f, old_face); + } + + /* Insert the new face. */ + cache_face (c, new_face, lface_hash (attrs)); + xassert (new_face->id == id); +} + + +/* Realize the fully-specified face with attributes ATTRS in face + cache C for character set CHARSET or for unibyte text if CHARSET < + 0. Value is a pointer to the newly created realized face. */ + +static struct face * +realize_face (c, attrs, charset) + struct face_cache *c; + Lisp_Object *attrs; + int charset; +{ + struct face *face; + + /* LFACE must be fully specified. */ + xassert (c != NULL); + check_lface_attrs (attrs); + + if (FRAME_WINDOW_P (c->f)) + face = realize_x_face (c, attrs, charset); + else if (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)) + face = realize_tty_face (c, attrs, charset); + else + abort (); + + return face; +} + + +/* Realize the fully-specified face with attributes ATTRS in face + cache C for character set CHARSET or for unibyte text if CHARSET < + 0. Do it for X frame C->f. Value is a pointer to the newly + created realized face. */ + +static struct face * +realize_x_face (c, attrs, charset) + struct face_cache *c; + Lisp_Object *attrs; + int charset; +{ + struct face *face, *default_face; + struct frame *f; + Lisp_Object stipple, overline, strike_through, box; + Lisp_Object unibyte_registry; + struct gcpro gcpro1; + + xassert (FRAME_WINDOW_P (c->f)); + + /* If realizing a face for use in unibyte text, get the X registry + and encoding to use from Vface_default_registry. */ + if (charset < 0) + unibyte_registry = (STRINGP (Vface_default_registry) + ? Vface_default_registry + : build_string ("iso8859-1")); + else + unibyte_registry = Qnil; + GCPRO1 (unibyte_registry); + + /* Allocate a new realized face. */ + face = make_realized_face (attrs, charset, unibyte_registry); + + f = c->f; + /* Determine the font to use. Most of the time, the font will be + the same as the font of the default face, so try that first. */ + default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); + if (default_face + && FACE_SUITABLE_FOR_CHARSET_P (default_face, charset) + && lface_same_font_attributes_p (default_face->lface, attrs)) + { + face->font = default_face->font; + face->fontset = default_face->fontset; + face->font_info_id = default_face->font_info_id; + face->font_name = default_face->font_name; + face->registry = default_face->registry; + } + else if (charset >= 0) + { + /* For all charsets, we use our own font selection functions to + choose a best matching font for the specified face + attributes. If the face specifies a fontset alias name, the + fontset determines the font name pattern, otherwise we + construct a font pattern from face attributes and charset. */ + + char *font_name = NULL; + int fontset = face_fontset (f, attrs); + + if (fontset < 0) + font_name = choose_face_font (f, attrs, charset, Qnil); + else + { + font_name = choose_face_fontset_font (f, attrs, fontset, charset); + fontset = -1; + } + + load_face_font_or_fontset (f, face, font_name, fontset); + xfree (font_name); + } + else + { + /* Unibyte case, and font is not equal to that of the default + face. UNIBYTE_REGISTRY is the X registry and encoding the + font should have. What is a reasonable thing to do if the + user specified a fontset alias name for the face in this + case? We choose a font by taking the ASCII font of the + fontset, but using UNIBYTE_REGISTRY for its registry and + encoding. */ + + char *font_name = NULL; + int fontset = face_fontset (f, attrs); + + if (fontset < 0) + font_name = choose_face_font (f, attrs, charset, unibyte_registry); + else + font_name = choose_face_fontset_font (f, attrs, fontset, charset); + + load_face_font_or_fontset (f, face, font_name, -1); + xfree (font_name); + } + + /* Load colors, and set remaining attributes. */ + + load_face_colors (f, face, attrs); + + /* Set up box. */ + box = attrs[LFACE_BOX_INDEX]; + if (STRINGP (box)) + { + /* A simple box of line width 1 drawn in color given by + the string. */ + face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], + LFACE_BOX_INDEX); + face->box = FACE_SIMPLE_BOX; + face->box_line_width = 1; + } + else if (INTEGERP (box)) + { + /* Simple box of specified line width in foreground color of the + face. */ + xassert (XINT (box) > 0); + face->box = FACE_SIMPLE_BOX; + face->box_line_width = XFASTINT (box); + face->box_color = face->foreground; + face->box_color_defaulted_p = 1; + } + else if (CONSP (box)) + { + /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW + being one of `raised' or `sunken'. */ + face->box = FACE_SIMPLE_BOX; + face->box_color = face->foreground; + face->box_color_defaulted_p = 1; + face->box_line_width = 1; + + while (CONSP (box)) + { + Lisp_Object keyword, value; + + keyword = XCAR (box); + box = XCDR (box); + + if (!CONSP (box)) + break; + value = XCAR (box); + box = XCDR (box); + + if (EQ (keyword, QCline_width)) + { + if (INTEGERP (value) && XINT (value) > 0) + face->box_line_width = XFASTINT (value); + } + else if (EQ (keyword, QCcolor)) + { + if (STRINGP (value)) + { + face->box_color = load_color (f, face, value, + LFACE_BOX_INDEX); + face->use_box_color_for_shadows_p = 1; + } + } + else if (EQ (keyword, QCstyle)) + { + if (EQ (value, Qreleased_button)) + face->box = FACE_RAISED_BOX; + else if (EQ (value, Qpressed_button)) + face->box = FACE_SUNKEN_BOX; + } + } + } + + /* Text underline, overline, strike-through. */ + + if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) + { + /* Use default color (same as foreground color). */ + face->underline_p = 1; + face->underline_defaulted_p = 1; + face->underline_color = 0; + } + else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) + { + /* Use specified color. */ + face->underline_p = 1; + face->underline_defaulted_p = 0; + face->underline_color + = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], + LFACE_UNDERLINE_INDEX); + } + else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) + { + face->underline_p = 0; + face->underline_defaulted_p = 0; + face->underline_color = 0; + } + + overline = attrs[LFACE_OVERLINE_INDEX]; + if (STRINGP (overline)) + { + face->overline_color + = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], + LFACE_OVERLINE_INDEX); + face->overline_p = 1; + } + else if (EQ (overline, Qt)) + { + face->overline_color = face->foreground; + face->overline_color_defaulted_p = 1; + face->overline_p = 1; + } + + strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; + if (STRINGP (strike_through)) + { + face->strike_through_color + = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], + LFACE_STRIKE_THROUGH_INDEX); + face->strike_through_p = 1; + } + else if (EQ (strike_through, Qt)) + { + face->strike_through_color = face->foreground; + face->strike_through_color_defaulted_p = 1; + face->strike_through_p = 1; + } + + stipple = attrs[LFACE_STIPPLE_INDEX]; + if (!NILP (stipple)) + face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); + + UNGCPRO; + xassert (face->fontset < 0); + xassert (FACE_SUITABLE_FOR_CHARSET_P (face, charset)); + return face; +} + + +/* Realize the fully-specified face with attributes ATTRS in face + cache C for character set CHARSET or for unibyte text if CHARSET < + 0. Do it for TTY frame C->f. Value is a pointer to the newly + created realized face. */ + +static struct face * +realize_tty_face (c, attrs, charset) + struct face_cache *c; + Lisp_Object *attrs; + int charset; +{ + struct face *face; + int weight, slant; + Lisp_Object color; + Lisp_Object tty_defined_color_alist = + Fsymbol_value (intern ("tty-defined-color-alist")); + Lisp_Object tty_color_alist = intern ("tty-color-alist"); + Lisp_Object frame; + int face_colors_defaulted = 0; + + /* Frame must be a termcap frame. */ + xassert (FRAME_TERMCAP_P (c->f) || FRAME_MSDOS_P (c->f)); + + /* Allocate a new realized face. */ + face = make_realized_face (attrs, charset, Qnil); + face->font_name = FRAME_MSDOS_P (c->f) ? "ms-dos" : "tty"; + + /* Map face attributes to TTY appearances. We map slant to + dimmed text because we want italic text to appear differently + and because dimmed text is probably used infrequently. */ + weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); + slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); + + if (weight > XLFD_WEIGHT_MEDIUM) + face->tty_bold_p = 1; + if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) + face->tty_dim_p = 1; + if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) + face->tty_underline_p = 1; + if (!NILP (attrs[LFACE_INVERSE_INDEX])) + face->tty_reverse_p = 1; + + /* Map color names to color indices. */ + face->foreground = FACE_TTY_DEFAULT_FG_COLOR; + face->background = FACE_TTY_DEFAULT_BG_COLOR; + + XSETFRAME (frame, c->f); + color = attrs[LFACE_FOREGROUND_INDEX]; + if (STRINGP (color) + && XSTRING (color)->size + && !NILP (tty_defined_color_alist) + && (color = Fassoc (color, call1 (tty_color_alist, frame)), + CONSP (color))) + /* Associations in tty-defined-color-alist are of the form + (NAME INDEX R G B). We need the INDEX part. */ + face->foreground = XINT (XCAR (XCDR (color))); + + if (face->foreground == FACE_TTY_DEFAULT_FG_COLOR + && STRINGP (attrs[LFACE_FOREGROUND_INDEX])) + { + face->foreground = load_color (c->f, face, + attrs[LFACE_FOREGROUND_INDEX], + LFACE_FOREGROUND_INDEX); + } + + color = attrs[LFACE_BACKGROUND_INDEX]; + if (STRINGP (color) + && XSTRING (color)->size + && !NILP (tty_defined_color_alist) + && (color = Fassoc (color, call1 (tty_color_alist, frame)), + CONSP (color))) + /* Associations in tty-defined-color-alist are of the form + (NAME INDEX R G B). We need the INDEX part. */ + face->background = XINT (XCAR (XCDR (color))); + + if (face->background == FACE_TTY_DEFAULT_BG_COLOR + && STRINGP (attrs[LFACE_BACKGROUND_INDEX])) + { + face->background = load_color (c->f, face, + attrs[LFACE_BACKGROUND_INDEX], + LFACE_BACKGROUND_INDEX); + } + + /* Swap colors if face is inverse-video. If the colors are taken + from the frame colors, they are already inverted, since the + frame-creation function calls x-handle-reverse-video. */ + if (face->tty_reverse_p && !face_colors_defaulted) + { + unsigned long tem = face->foreground; + + face->foreground = face->background; + face->background = tem; + } + + return face; +} + + + +/*********************************************************************** + Computing Faces + ***********************************************************************/ + +/* Return the ID of the face to use to display character CH with face + property PROP on frame F in current_buffer. */ - If MOUSE is nonzero, use the character's mouse-face, not its face. */ int -compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) +compute_char_face (f, ch, prop) struct frame *f; + int ch; + Lisp_Object prop; +{ + int face_id; + int charset = (NILP (current_buffer->enable_multibyte_characters) + ? -1 + : CHAR_CHARSET (ch)); + + if (NILP (prop)) + face_id = FACE_FOR_CHARSET (f, DEFAULT_FACE_ID, charset); + else + { + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); + bcopy (default_face->lface, attrs, sizeof attrs); + merge_face_vector_with_property (f, attrs, prop); + face_id = lookup_face (f, attrs, charset); + } + + return face_id; +} + + +/* Return the face ID associated with buffer position POS for + displaying ASCII characters. Return in *ENDPTR the position at + which a different face is needed, as far as text properties and + overlays are concerned. W is a window displaying current_buffer. + + REGION_BEG, REGION_END delimit the region, so it can be + highlighted. + + LIMIT is a position not to scan beyond. That is to limit the time + this function can take. + + If MOUSE is non-zero, use the character's mouse-face, not its face. + + The face returned is suitable for displaying CHARSET_ASCII if + current_buffer->enable_multibyte_characters is non-nil. Otherwise, + the face is suitable for displaying unibyte text. */ + +int +face_at_buffer_position (w, pos, region_beg, region_end, + endptr, limit, mouse) struct window *w; int pos; int region_beg, region_end; @@ -712,44 +5847,38 @@ compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) int limit; int mouse; { - struct face face; + struct frame *f = XFRAME (w->frame); + Lisp_Object attrs[LFACE_VECTOR_SIZE]; Lisp_Object prop, position; - int i, j, noverlays; - int facecode; + int i, noverlays; Lisp_Object *overlay_vec; Lisp_Object frame; int endpos; - Lisp_Object propname; + Lisp_Object propname = mouse ? Qmouse_face : Qface; + Lisp_Object limit1, end; + struct face *default_face; + int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); /* W must display the current buffer. We could write this function to use the frame and buffer of W, but right now it doesn't. */ - if (XBUFFER (w->buffer) != current_buffer) - abort (); + /* xassert (XBUFFER (w->buffer) == current_buffer); */ XSETFRAME (frame, f); + XSETFASTINT (position, pos); endpos = ZV; if (pos < region_beg && region_beg < endpos) endpos = region_beg; - XSETFASTINT (position, pos); - - if (mouse) - propname = Qmouse_face; - else - propname = Qface; - + /* Get the `face' or `mouse_face' text property at POS, and + determine the next position at which the property changes. */ prop = Fget_text_property (position, propname, w->buffer); + XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); + end = Fnext_single_property_change (position, propname, w->buffer, limit1); + if (INTEGERP (end)) + endpos = XINT (end); - { - Lisp_Object limit1, end; - - XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); - end = Fnext_single_property_change (position, propname, w->buffer, limit1); - if (INTEGERP (end)) - endpos = XINT (end); - } - + /* Look at properties from overlays. */ { int next_overlay; int len; @@ -757,18 +5886,17 @@ compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) /* First try with room for 40 overlays. */ len = 40; overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); - noverlays = overlays_at (pos, 0, &overlay_vec, &len, - &next_overlay, (int *) 0); + &next_overlay, NULL); - /* If there are more than 40, - make enough space for all, and try again. */ + /* If there are more than 40, make enough space for all, and try + again. */ if (noverlays > len) { len = noverlays; overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); noverlays = overlays_at (pos, 0, &overlay_vec, &len, - &next_overlay, (int *) 0); + &next_overlay, NULL); } if (next_overlay < endpos) @@ -777,25 +5905,34 @@ compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) *endptr = endpos; - /* Optimize the default case. */ - if (noverlays == 0 && NILP (prop) - && !(pos >= region_beg && pos < region_end)) - return 0; + default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); - compute_base_face (f, &face); + /* Optimize common cases where we can use the default face. */ + if (noverlays == 0 + && NILP (prop) + && !(pos >= region_beg && pos < region_end) + && (multibyte_p + || !FRAME_WINDOW_P (f) + || FACE_SUITABLE_FOR_CHARSET_P (default_face, -1))) + return DEFAULT_FACE_ID; - merge_face_list (f, &face, prop); + /* Begin with attributes from the default face. */ + bcopy (default_face->lface, attrs, sizeof attrs); - noverlays = sort_overlays (overlay_vec, noverlays, w); + /* Merge in attributes specified via text properties. */ + if (!NILP (prop)) + merge_face_vector_with_property (f, attrs, prop); - /* Now merge the overlay data in that order. */ + /* Now merge the overlay data. */ + noverlays = sort_overlays (overlay_vec, noverlays, w); for (i = 0; i < noverlays; i++) { Lisp_Object oend; int oendpos; prop = Foverlay_get (overlay_vec[i], propname); - merge_face_list (f, &face, prop); + if (!NILP (prop)) + merge_face_vector_with_property (f, attrs, prop); oend = OVERLAY_END (overlay_vec[i]); oendpos = OVERLAY_POSITION (oend); @@ -803,305 +5940,406 @@ compute_char_face (f, w, pos, region_beg, region_end, endptr, limit, mouse) endpos = oendpos; } + /* If in the region, merge in the region face. */ if (pos >= region_beg && pos < region_end) { + Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); + merge_face_vectors (XVECTOR (region_face)->contents, attrs); + if (region_end < endpos) endpos = region_end; - if (region_face >= 0 && region_face < next_face_id) - merge_faces (FRAME_PARAM_FACES (f)[region_face], &face); - } + } *endptr = endpos; - return intern_computed_face (f, &face); + /* Look up a realized face with the given face attributes, + or realize a new one. Charset is ignored for tty frames. */ + return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); } -static void -merge_face_list (f, face, prop) - FRAME_PTR f; - struct face *face; - Lisp_Object prop; -{ - Lisp_Object length; - int len; - Lisp_Object *faces; - int j; - if (CONSP (prop) - && ! STRINGP (XCDR (prop))) - { - /* We have a list of faces, merge them in reverse order. */ +/* Compute the face at character position POS in Lisp string STRING on + window W, for charset CHARSET_ASCII. - length = Fsafe_length (prop); - len = XFASTINT (length); + If STRING is an overlay string, it comes from position BUFPOS in + current_buffer, otherwise BUFPOS is zero to indicate that STRING is + not an overlay string. W must display the current buffer. + REGION_BEG and REGION_END give the start and end positions of the + region; both are -1 if no region is visible. BASE_FACE_ID is the + id of the basic face to merge with. It is usually equal to + DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID + for strings displayed in the mode or top line. + + Set *ENDPTR to the next position where to check for faces in + STRING; -1 if the face is constant from POS to the end of the + string. - /* Put them into an array. */ - faces = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); - for (j = 0; j < len; j++) - { - faces[j] = Fcar (prop); - prop = Fcdr (prop); - } - /* So that we can merge them in the reverse order. */ - } - else - { - faces = (Lisp_Object *) alloca (sizeof (Lisp_Object)); - faces[0] = prop; - len = 1; - } + Value is the id of the face to use. The face returned is suitable + for displaying CHARSET_ASCII if STRING is multibyte. Otherwise, + the face is suitable for displaying unibyte text. */ - for (j = len - 1; j >= 0; j--) +int +face_at_string_position (w, string, pos, bufpos, region_beg, + region_end, endptr, base_face_id) + struct window *w; + Lisp_Object string; + int pos, bufpos; + int region_beg, region_end; + int *endptr; + enum face_id base_face_id; +{ + Lisp_Object prop, position, end, limit; + struct frame *f = XFRAME (WINDOW_FRAME (w)); + Lisp_Object attrs[LFACE_VECTOR_SIZE]; + struct face *base_face; + int multibyte_p = STRING_MULTIBYTE (string); + + /* Get the value of the face property at the current position within + STRING. Value is nil if there is no face property. */ + XSETFASTINT (position, pos); + prop = Fget_text_property (position, Qface, string); + + /* Get the next position at which to check for faces. Value of end + is nil if face is constant all the way to the end of the string. + Otherwise it is a string position where to check faces next. + Limit is the maximum position up to which to check for property + changes in Fnext_single_property_change. Strings are usually + short, so set the limit to the end of the string. */ + XSETFASTINT (limit, XSTRING (string)->size); + end = Fnext_single_property_change (position, Qface, string, limit); + if (INTEGERP (end)) + *endptr = XFASTINT (end); + else + *endptr = -1; + + base_face = FACE_FROM_ID (f, base_face_id); + xassert (base_face); + + /* Optimize the default case that there is no face property and we + are not in the region. */ + if (NILP (prop) + && (base_face_id != DEFAULT_FACE_ID + /* BUFPOS <= 0 means STRING is not an overlay string, so + that the region doesn't have to be taken into account. */ + || bufpos <= 0 + || bufpos < region_beg + || bufpos >= region_end) + && (multibyte_p + /* We can't realize faces for different charsets differently + if we don't have fonts, so we can stop here if not working + on a window-system frame. */ + || !FRAME_WINDOW_P (f) + || FACE_SUITABLE_FOR_CHARSET_P (base_face, -1))) + return base_face->id; + + /* Begin with attributes from the base face. */ + bcopy (base_face->lface, attrs, sizeof attrs); + + /* Merge in attributes specified via text properties. */ + if (!NILP (prop)) + merge_face_vector_with_property (f, attrs, prop); + + /* If in the region, merge in the region face. */ + if (bufpos + && bufpos >= region_beg + && bufpos < region_end) { - if (CONSP (faces[j])) - { - if (EQ (XCAR (faces[j]), Qbackground_color)) - face->background = load_color (f, XCDR (faces[j])); - if (EQ (XCAR (faces[j]), Qforeground_color)) - face->foreground = load_color (f, XCDR (faces[j])); - } - else - { - int facecode = face_name_id_number (f, faces[j]); - if (facecode >= 0 && facecode < FRAME_N_PARAM_FACES (f) - && FRAME_PARAM_FACES (f) [facecode] != 0) - merge_faces (FRAME_PARAM_FACES (f) [facecode], face); - } + Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); + merge_face_vectors (XVECTOR (region_face)->contents, attrs); } -} - - -/* Recompute the GC's for the default and modeline faces. - We call this after changing frame parameters on which those GC's - depend. */ - -void -recompute_basic_faces (f) - FRAME_PTR f; -{ - /* If the frame's faces haven't been initialized yet, don't worry about - this stuff. */ - if (FRAME_N_PARAM_FACES (f) < 2) - return; - - BLOCK_INPUT; - compute_base_face (f, FRAME_DEFAULT_FACE (f)); - compute_base_face (f, FRAME_MODE_LINE_FACE (f)); - - merge_faces (FRAME_DEFAULT_PARAM_FACE (f), FRAME_DEFAULT_FACE (f)); - merge_faces (FRAME_MODE_LINE_PARAM_FACE (f), FRAME_MODE_LINE_FACE (f)); - - intern_face (f, FRAME_DEFAULT_FACE (f)); - intern_face (f, FRAME_MODE_LINE_FACE (f)); - - UNBLOCK_INPUT; + /* Look up a realized face with the given face attributes, + or realize a new one. */ + return lookup_face (f, attrs, multibyte_p ? CHARSET_ASCII : -1); } -/* Lisp interface. */ - -DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, 1, 1, 0, - "") - (frame) - Lisp_Object frame; -{ - CHECK_FRAME (frame, 0); - return XFRAME (frame)->face_alist; -} +/*********************************************************************** + Tests + ***********************************************************************/ -DEFUN ("set-frame-face-alist", Fset_frame_face_alist, Sset_frame_face_alist, - 2, 2, 0, "") - (frame, value) - Lisp_Object frame, value; -{ - CHECK_FRAME (frame, 0); - XFRAME (frame)->face_alist = value; - return value; -} +#if GLYPH_DEBUG +/* Print the contents of the realized face FACE to stderr. */ -DEFUN ("make-face-internal", Fmake_face_internal, Smake_face_internal, 1, 1, 0, - "Create face number FACE-ID on all frames.") - (face_id) - Lisp_Object face_id; +static void +dump_realized_face (face) + struct face *face; { - Lisp_Object rest, frame; - int id = XINT (face_id); - - CHECK_NUMBER (face_id, 0); - if (id < 0 || id >= next_face_id) - error ("Face id out of range"); - - FOR_EACH_FRAME (rest, frame) - { - if (FRAME_W32_P (XFRAME (frame))) - ensure_face_ready (XFRAME (frame), id); - } - return Qnil; + fprintf (stderr, "ID: %d\n", face->id); + fprintf (stderr, "gc: %d\n", (int) face->gc); + fprintf (stderr, "foreground: 0x%lx (%s)\n", + face->foreground, + XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); + fprintf (stderr, "background: 0x%lx (%s)\n", + face->background, + XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); + fprintf (stderr, "font_name: %s (%s)\n", + face->font_name, + XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); + fprintf (stderr, "font = %p\n", face->font); + fprintf (stderr, "font_info_id = %d\n", face->font_info_id); + fprintf (stderr, "fontset: %d\n", face->fontset); + fprintf (stderr, "underline: %d (%s)\n", + face->underline_p, + XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); + fprintf (stderr, "hash: %d\n", face->hash); + fprintf (stderr, "charset: %d\n", face->charset); } -DEFUN ("set-face-attribute-internal", Fset_face_attribute_internal, - Sset_face_attribute_internal, 4, 4, 0, "") - (face_id, attr_name, attr_value, frame) - Lisp_Object face_id, attr_name, attr_value, frame; +DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") + (n) + Lisp_Object n; { - struct face *face; - struct frame *f; - int magic_p; - int id; - int garbaged = 0; - - CHECK_FRAME (frame, 0); - CHECK_NUMBER (face_id, 0); - CHECK_SYMBOL (attr_name, 0); - - f = XFRAME (frame); - id = XINT (face_id); - if (id < 0 || id >= next_face_id) - error ("Face id out of range"); - - if (! FRAME_WINDOW_P (f)) - return Qnil; - - ensure_face_ready (f, id); - face = FRAME_PARAM_FACES (f) [XFASTINT (face_id)]; - - if (EQ (attr_name, intern ("font"))) + if (NILP (n)) { - XFontStruct *font = NULL; - int fontset; - - if (NILP (attr_value)) - { - font = (XFontStruct *) FACE_DEFAULT; - fontset = -1; - } - else - { - CHECK_STRING (attr_value, 0); - fontset = fs_query_fontset (f, XSTRING (attr_value)->data); - if (fontset >= 0) - { - struct font_info *fontp; - - if (!(fontp = FS_LOAD_FONT (f, FRAME_W32_FONT_TABLE (f), - CHARSET_ASCII, NULL, fontset))) - Fsignal (Qerror, - Fcons (build_string ("ASCII font can't be loaded"), - Fcons (attr_value, Qnil))); - font = (XFontStruct *) (fontp->font); - } - else - font = load_font (f, attr_value); - } - if (face->fontset == -1 && face->font != f->output_data.w32->font) - unload_font (f, face->font); - face->font = font; - face->fontset = fontset; - if (frame_update_line_height (f)) - x_set_window_size (f, 0, f->width, f->height); - /* Must clear cache, since it might contain the font - we just got rid of. */ - garbaged = 1; - } - else if (EQ (attr_name, intern ("foreground"))) - { - unsigned long new_color = load_color (f, attr_value); - unload_color (f, face->foreground); - face->foreground = new_color; - garbaged = 1; - } - else if (EQ (attr_name, intern ("background"))) - { - unsigned long new_color = load_color (f, attr_value); - unload_color (f, face->background); - face->background = new_color; - garbaged = 1; - } - else if (EQ (attr_name, intern ("background-pixmap"))) - { - unsigned int w, h; - unsigned long new_pixmap = load_pixmap (f, attr_value, &w, &h); - x_destroy_bitmap (f, face->stipple); - face->stipple = (Pixmap) new_pixmap; - face->pixmap_w = w; - face->pixmap_h = h; - garbaged = 1; + int i; + + fprintf (stderr, "font selection order: "); + for (i = 0; i < DIM (font_sort_order); ++i) + fprintf (stderr, "%d ", font_sort_order[i]); + fprintf (stderr, "\n"); + + fprintf (stderr, "alternative fonts: "); + debug_print (Vface_alternative_font_family_alist); + fprintf (stderr, "\n"); + + for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) + Fdump_face (make_number (i)); } - else if (EQ (attr_name, intern ("underline"))) + else { - int new = !NILP (attr_value); - face->underline = new; + struct face *face; + CHECK_NUMBER (n, 0); + face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); + if (face == NULL) + error ("Not a valid face"); + dump_realized_face (face); } - else - error ("unknown face attribute"); - - if (id == 0 || id == 1) - recompute_basic_faces (f); - - /* We must redraw the frame whenever any face font or color changes, - because it's possible that a merged (display) face - contains the font or color we just replaced. - And we must inhibit any Expose events until the redraw is done, - since they would try to use the invalid display faces. */ - if (garbaged) - SET_FRAME_GARBAGED (f); - + return Qnil; } -DEFUN ("internal-next-face-id", Finternal_next_face_id, Sinternal_next_face_id, - 0, 0, 0, "") + +DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, + 0, 0, 0, "") () { - return make_number (next_face_id++); + fprintf (stderr, "number of colors = %d\n", ncolors_allocated); + fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); + fprintf (stderr, "number of GCs = %d\n", ngcs); + return Qnil; } -/* Return the face id for name NAME on frame FRAME. - (It should be the same for all frames, - but it's as easy to use the "right" frame to look it up - as to use any other one.) */ +#endif /* GLYPH_DEBUG != 0 */ -int -face_name_id_number (f, name) - FRAME_PTR f; - Lisp_Object name; -{ - Lisp_Object tem; - tem = Fcdr (assq_no_quit (name, f->face_alist)); - if (NILP (tem)) - return 0; - CHECK_VECTOR (tem, 0); - tem = XVECTOR (tem)->contents[2]; - CHECK_NUMBER (tem, 0); - return XINT (tem); -} -/* Emacs initialization. */ +/*********************************************************************** + Initialization +***********************************************************************/ void syms_of_w32faces () { Qface = intern ("face"); staticpro (&Qface); - Qmouse_face = intern ("mouse-face"); - staticpro (&Qmouse_face); - Qpixmap_spec_p = intern ("pixmap-spec-p"); - staticpro (&Qpixmap_spec_p); - - DEFVAR_INT ("region-face", ®ion_face, - "Face number to use to highlight the region\n\ -The region is highlighted with this face\n\ -when Transient Mark mode is enabled and the mark is active."); - - defsubr (&Spixmap_spec_p); + Qbitmap_spec_p = intern ("bitmap-spec-p"); + staticpro (&Qbitmap_spec_p); + Qframe_update_face_colors = intern ("frame-update-face-colors"); + staticpro (&Qframe_update_face_colors); + + /* Lisp face attribute keywords. */ + QCfamily = intern (":family"); + staticpro (&QCfamily); + QCheight = intern (":height"); + staticpro (&QCheight); + QCweight = intern (":weight"); + staticpro (&QCweight); + QCslant = intern (":slant"); + staticpro (&QCslant); + QCunderline = intern (":underline"); + staticpro (&QCunderline); + QCinverse_video = intern (":inverse-video"); + staticpro (&QCinverse_video); + QCreverse_video = intern (":reverse-video"); + staticpro (&QCreverse_video); + QCforeground = intern (":foreground"); + staticpro (&QCforeground); + QCbackground = intern (":background"); + staticpro (&QCbackground); + QCstipple = intern (":stipple");; + staticpro (&QCstipple); + QCwidth = intern (":width"); + staticpro (&QCwidth); + QCfont = intern (":font"); + staticpro (&QCfont); + QCbold = intern (":bold"); + staticpro (&QCbold); + QCitalic = intern (":italic"); + staticpro (&QCitalic); + QCoverline = intern (":overline"); + staticpro (&QCoverline); + QCstrike_through = intern (":strike-through"); + staticpro (&QCstrike_through); + QCbox = intern (":box"); + staticpro (&QCbox); + + /* Symbols used for Lisp face attribute values. */ + QCcolor = intern (":color"); + staticpro (&QCcolor); + QCline_width = intern (":line-width"); + staticpro (&QCline_width); + QCstyle = intern (":style"); + staticpro (&QCstyle); + Qreleased_button = intern ("released-button"); + staticpro (&Qreleased_button); + Qpressed_button = intern ("pressed-button"); + staticpro (&Qpressed_button); + Qnormal = intern ("normal"); + staticpro (&Qnormal); + Qultra_light = intern ("ultra-light"); + staticpro (&Qultra_light); + Qextra_light = intern ("extra-light"); + staticpro (&Qextra_light); + Qlight = intern ("light"); + staticpro (&Qlight); + Qsemi_light = intern ("semi-light"); + staticpro (&Qsemi_light); + Qsemi_bold = intern ("semi-bold"); + staticpro (&Qsemi_bold); + Qbold = intern ("bold"); + staticpro (&Qbold); + Qextra_bold = intern ("extra-bold"); + staticpro (&Qextra_bold); + Qultra_bold = intern ("ultra-bold"); + staticpro (&Qultra_bold); + Qoblique = intern ("oblique"); + staticpro (&Qoblique); + Qitalic = intern ("italic"); + staticpro (&Qitalic); + Qreverse_oblique = intern ("reverse-oblique"); + staticpro (&Qreverse_oblique); + Qreverse_italic = intern ("reverse-italic"); + staticpro (&Qreverse_italic); + Qultra_condensed = intern ("ultra-condensed"); + staticpro (&Qultra_condensed); + Qextra_condensed = intern ("extra-condensed"); + staticpro (&Qextra_condensed); + Qcondensed = intern ("condensed"); + staticpro (&Qcondensed); + Qsemi_condensed = intern ("semi-condensed"); + staticpro (&Qsemi_condensed); + Qsemi_expanded = intern ("semi-expanded"); + staticpro (&Qsemi_expanded); + Qexpanded = intern ("expanded"); + staticpro (&Qexpanded); + Qextra_expanded = intern ("extra-expanded"); + staticpro (&Qextra_expanded); + Qultra_expanded = intern ("ultra-expanded"); + staticpro (&Qultra_expanded); + Qbackground_color = intern ("background-color"); + staticpro (&Qbackground_color); + Qforeground_color = intern ("foreground-color"); + staticpro (&Qforeground_color); + Qunspecified = intern ("unspecified"); + staticpro (&Qunspecified); + + Qx_charset_registry = intern ("x-charset-registry"); + staticpro (&Qx_charset_registry); + Qface_alias = intern ("face-alias"); + staticpro (&Qface_alias); + Qdefault = intern ("default"); + staticpro (&Qdefault); + Qtool_bar = intern ("tool-bar"); + staticpro (&Qtool_bar); + Qregion = intern ("region"); + staticpro (&Qregion); + Qfringe = intern ("fringe"); + staticpro (&Qfringe); + Qheader_line = intern ("header-line"); + staticpro (&Qheader_line); + Qscroll_bar = intern ("scroll-bar"); + staticpro (&Qscroll_bar); + Qmenu = intern ("menu"); + staticpro (&Qmenu); + Qcursor = intern ("cursor"); + staticpro (&Qcursor); + Qborder = intern ("border"); + staticpro (&Qborder); + Qmouse = intern ("mouse"); + staticpro (&Qmouse); + Qtty_color_desc = intern ("tty-color-desc"); + staticpro (&Qtty_color_desc); + Qtty_color_by_index = intern ("tty-color-by-index"); + staticpro (&Qtty_color_by_index); + + defsubr (&Sinternal_make_lisp_face); + defsubr (&Sinternal_lisp_face_p); + defsubr (&Sinternal_set_lisp_face_attribute); + defsubr (&Sinternal_set_lisp_face_attribute_from_resource); + defsubr (&Scolor_gray_p); + defsubr (&Scolor_supported_p); + defsubr (&Sinternal_get_lisp_face_attribute); + defsubr (&Sinternal_lisp_face_attribute_values); + defsubr (&Sinternal_lisp_face_equal_p); + defsubr (&Sinternal_lisp_face_empty_p); + defsubr (&Sinternal_copy_lisp_face); + defsubr (&Sinternal_merge_in_global_face); + defsubr (&Sface_font); defsubr (&Sframe_face_alist); - defsubr (&Sset_frame_face_alist); - defsubr (&Smake_face_internal); - defsubr (&Sset_face_attribute_internal); - defsubr (&Sinternal_next_face_id); + defsubr (&Sinternal_set_font_selection_order); + defsubr (&Sinternal_set_alternative_font_family_alist); +#if GLYPH_DEBUG + defsubr (&Sdump_face); + defsubr (&Sshow_face_resources); +#endif /* GLYPH_DEBUG */ + defsubr (&Sclear_face_cache); + + DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, + "*Limit for font matching.\n\ +If an integer > 0, font matching functions won't load more than\n\ +that number of fonts when searching for a matching font."); + Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); + + DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, + "List of global face definitions (for internal use only.)"); + Vface_new_frame_defaults = Qnil; + + DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, + "*Default stipple pattern used on monochrome displays.\n\ +This stipple pattern is used on monochrome displays\n\ +instead of shades of gray for a face background color.\n\ +See `set-face-stipple' for possible values for this variable."); + Vface_default_stipple = build_string ("gray3"); + + DEFVAR_LISP ("face-default-registry", &Vface_default_registry, + "Default registry and encoding to use.\n\ +This registry and encoding is used for unibyte text. It is set up\n\ +from the specified frame font when Emacs starts. (For internal use only.)"); + Vface_default_registry = Qnil; + + DEFVAR_LISP ("face-alternative-font-family-alist", + &Vface_alternative_font_family_alist, ""); + Vface_alternative_font_family_alist = Qnil; + +#if SCALABLE_FONTS + + DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, + "Allowed scalable fonts.\n\ +A value of nil means don't allow any scalable fonts.\n\ +A value of t means allow any scalable font.\n\ +Otherwise, value must be a list of regular expressions. A font may be\n\ +scaled if its name matches a regular expression in the list."); + Vscalable_fonts_allowed = Qt; + +#endif /* SCALABLE_FONTS */ + + defsubr (&Sbitmap_spec_p); + defsubr (&Sx_list_fonts); + defsubr (&Sinternal_face_x_get_resource); + defsubr (&Sx_family_fonts); + defsubr (&Sx_font_family_list); } |