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Diffstat (limited to 'examples/viewer-x.c')
| -rw-r--r-- | examples/viewer-x.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/examples/viewer-x.c b/examples/viewer-x.c deleted file mode 100644 index e79c6eaf..00000000 --- a/examples/viewer-x.c +++ /dev/null @@ -1,241 +0,0 @@ -/* viewer-x.c: Common code for X-based viewers - * - * Copyright (C) 1999,2004,2005 Red Hat, Inc. - * Copyright (C) 2001 Sun Microsystems - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ -#include <config.h> -#include <string.h> - -#include "renderdemo.h" -#include "viewer-x.h" - -void -x_view_init (gpointer instance, - const PangoViewer *klass) -{ - XViewer *x = (XViewer *)instance; - - x->display = XOpenDisplay (NULL); - if (!x->display) - fail ("Cannot open display %s\n", XDisplayName (NULL)); - - x->screen = DefaultScreen (x->display); -} - -gpointer -x_view_create (const PangoViewer *klass) -{ - XViewer *instance; - - instance = g_slice_new (XViewer); - - x_view_init (instance, klass); - - return instance; -} - -void -x_view_destroy (gpointer instance) -{ - XViewer *x = (XViewer *)instance; - - XCloseDisplay (x->display); - - g_slice_free (XViewer, instance); -} - -gpointer -x_view_create_surface (gpointer instance, - int width, - int height) -{ - XViewer *x = (XViewer *) instance; - Pixmap pixmap; - - pixmap = XCreatePixmap (x->display, DefaultRootWindow (x->display), width, height, - DefaultDepth (x->display, x->screen)); - - return (gpointer) pixmap; -} - -void -x_view_destroy_surface (gpointer instance, - gpointer surface) -{ - XViewer *x = (XViewer *) instance; - Pixmap pixmap = (Pixmap) surface; - - XFreePixmap (x->display, pixmap); -} - -static void -update (Display *display, - Pixmap pixmap, - Window window, - Region *update_region) -{ - GC gc; - XRectangle extents; - - XClipBox (*update_region, &extents); - - gc = XCreateGC (display, pixmap, 0, NULL); - - XCopyArea (display, pixmap, window, gc, - extents.x, extents.y, - extents.width, extents.height, - extents.x, extents.y); - - XFreeGC (display, gc); - - XDestroyRegion (*update_region); - *update_region = NULL; -} - -static void -expose (XExposeEvent *xev, - Region *update_region) -{ - XRectangle r; - - if (!*update_region) - *update_region = XCreateRegion (); - - r.x = xev->x; - r.y = xev->y; - r.width = xev->width; - r.height = xev->height; - - XUnionRectWithRegion (&r, *update_region, *update_region); -} - -gpointer -x_view_create_window (gpointer instance, - const char *title, - int width, - int height) -{ - XViewer *x = (XViewer *) instance; - unsigned long bg; - Window window; - XSizeHints size_hints; - - bg = WhitePixel (x->display, x->screen); - window = XCreateSimpleWindow (x->display, DefaultRootWindow (x->display), - 0, 0, width, height, 0, - bg, bg); - - XSelectInput (x->display, window, ExposureMask | KeyPressMask); - - XMapWindow (x->display, window); - XmbSetWMProperties (x->display, window, - title, - NULL, NULL, 0, NULL, NULL, NULL); - - memset ((char *)&size_hints, 0, sizeof (XSizeHints)); - size_hints.flags = PSize | PMaxSize; - size_hints.width = width; size_hints.height = height; /* for compat only */ - size_hints.max_width = width; size_hints.max_height = height; - - XSetWMNormalHints (x->display, window, &size_hints); - - return (gpointer) window; -} - -void -x_view_destroy_window (gpointer instance, - gpointer window) -{ - XViewer *x = (XViewer *) instance; - Window win = (Window) window; - - XDestroyWindow (x->display, win); -} - -gpointer -x_view_display (gpointer instance, - gpointer surface, - gpointer win, - int width, - int height, - gpointer state) -{ - XViewer *x = (XViewer *) instance; - Pixmap pixmap = (Pixmap) surface; - Window window = (Window) win; - XEvent xev; - XRectangle r; - Region update_region; - unsigned int quit_keycode; - unsigned int borders_keycode; - gboolean show_borders = FALSE; - - if (state) - show_borders = GPOINTER_TO_UINT (state) == 0xdeadbeef; - - /* force a full redraw */ - update_region = XCreateRegion (); - r.x = 0; - r.y = 0; - r.width = width; - r.height = height; - XUnionRectWithRegion (&r, update_region, update_region); - - borders_keycode = XKeysymToKeycode(x->display, 'B'); - quit_keycode = XKeysymToKeycode(x->display, 'Q'); - - while (1) - { - if (!XPending (x->display) && update_region) - update (x->display, pixmap, window, &update_region); - - XNextEvent (x->display, &xev); - switch (xev.xany.type) { - case KeyPress: - if (xev.xkey.keycode == quit_keycode) - return NULL; - else if (xev.xkey.keycode == borders_keycode) - { - show_borders = !show_borders; - return GUINT_TO_POINTER (show_borders ? 0xdeadbeef : 0xbe); - } - break; - case Expose: - expose (&xev.xexpose, &update_region); - break; - } - } -} - -const PangoViewer x_viewer = { - "X", - NULL, - NULL, - x_view_create, - x_view_destroy, - NULL, - x_view_create_surface, - x_view_destroy_surface, - NULL, - NULL, - x_view_create_window, - x_view_destroy_window, - x_view_display -}; - -const PangoViewer *fallback_viewer = &x_viewer; |