Pileus Git - ~andy/gtk/blob - gdk/x11/gdkpixmap-x11.c

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "config.h"
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 /* Needed for SEEK_END in SunOS */
  32 #include <unistd.h>
  33 #include <X11/Xlib.h>
  34
  35 #include <gdk/gdkpixmap.h>
  36 #include "gdkpixmap-x11.h"
  37 #include "gdkprivate-x11.h"
  38
  39 typedef struct
  40 {
  41   gchar *color_string;
  42   GdkColor color;
  43   gint transparent;
  44 } _GdkPixmapColor;
  45
  46 typedef struct
  47 {
  48   guint ncolors;
  49   GdkColormap *colormap;
  50   gulong pixels[1];
  51 } _GdkPixmapInfo;
  52
  53 static void gdk_pixmap_impl_x11_get_size   (GdkDrawable        *drawable,
  54                                         gint               *width,
  55                                         gint               *height);
  56
  57 static void gdk_pixmap_impl_x11_init       (GdkPixmapImplX11      *pixmap);
  58 static void gdk_pixmap_impl_x11_class_init (GdkPixmapImplX11Class *klass);
  59 static void gdk_pixmap_impl_x11_finalize   (GObject            *object);
  60
  61 static gpointer parent_class = NULL;
  62
  63 GType
  64 gdk_pixmap_impl_x11_get_type (void)
  65 {
  66   static GType object_type = 0;
  67
  68   if (!object_type)
  69     {
  70       static const GTypeInfo object_info =
  71       {
  72         sizeof (GdkPixmapImplX11Class),
  73         (GBaseInitFunc) NULL,
  74         (GBaseFinalizeFunc) NULL,
  75         (GClassInitFunc) gdk_pixmap_impl_x11_class_init,
  76         NULL,           /* class_finalize */
  77         NULL,           /* class_data */
  78         sizeof (GdkPixmapImplX11),
  79         0,              /* n_preallocs */
  80         (GInstanceInitFunc) gdk_pixmap_impl_x11_init,
  81       };
  82
  83       object_type = g_type_register_static (GDK_TYPE_DRAWABLE_IMPL_X11,
  84                                             "GdkPixmapImplX11",
  85                                             &object_info, 0);
  86     }
  87
  88   return object_type;
  89 }
  90
  91
  92 GType
  93 _gdk_pixmap_impl_get_type (void)
  94 {
  95   return gdk_pixmap_impl_x11_get_type ();
  96 }
  97
  98 static void
  99 gdk_pixmap_impl_x11_init (GdkPixmapImplX11 *impl)
 100 {
 101   impl->width = 1;
 102   impl->height = 1;
 103 }
 104
 105 static void
 106 gdk_pixmap_impl_x11_class_init (GdkPixmapImplX11Class *klass)
 107 {
 108   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 109   GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
 110
 111   parent_class = g_type_class_peek_parent (klass);
 112
 113   object_class->finalize = gdk_pixmap_impl_x11_finalize;
 114
 115   drawable_class->get_size = gdk_pixmap_impl_x11_get_size;
 116 }
 117
 118 static void
 119 gdk_pixmap_impl_x11_finalize (GObject *object)
 120 {
 121   GdkPixmapImplX11 *impl = GDK_PIXMAP_IMPL_X11 (object);
 122   GdkPixmap *wrapper = GDK_PIXMAP (GDK_DRAWABLE_IMPL_X11 (impl)->wrapper);
 123
 124   if (!impl->is_foreign)
 125     XFreePixmap (GDK_PIXMAP_XDISPLAY (wrapper), GDK_PIXMAP_XID (wrapper));
 126
 127   gdk_xid_table_remove (GDK_PIXMAP_XID (wrapper));
 128
 129   G_OBJECT_CLASS (parent_class)->finalize (object);
 130 }
 131
 132 static void
 133 gdk_pixmap_impl_x11_get_size   (GdkDrawable *drawable,
 134                                 gint        *width,
 135                                 gint        *height)
 136 {
 137   if (width)
 138     *width = GDK_PIXMAP_IMPL_X11 (drawable)->width;
 139   if (height)
 140     *height = GDK_PIXMAP_IMPL_X11 (drawable)->height;
 141 }
 142
 143 GdkPixmap*
 144 gdk_pixmap_new (GdkWindow *window,
 145                 gint       width,
 146                 gint       height,
 147                 gint       depth)
 148 {
 149   GdkPixmap *pixmap;
 150   GdkDrawableImplX11 *draw_impl;
 151   GdkPixmapImplX11 *pix_impl;
 152   GdkColormap *cmap;
 153
 154   g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), NULL);
 155   g_return_val_if_fail ((window != NULL) || (depth != -1), NULL);
 156   g_return_val_if_fail ((width != 0) && (height != 0), NULL);
 157
 158   if (!window)
 159     window = gdk_parent_root;
 160
 161   if (GDK_WINDOW_DESTROYED (window))
 162     return NULL;
 163
 164   if (depth == -1)
 165     depth = gdk_drawable_get_depth (GDK_DRAWABLE (window));
 166
 167   pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
 168   draw_impl = GDK_DRAWABLE_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 169   pix_impl = GDK_PIXMAP_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 170   draw_impl->wrapper = GDK_DRAWABLE (pixmap);
 171
 172   draw_impl->xdisplay = GDK_WINDOW_XDISPLAY (window);
 173   draw_impl->xid = XCreatePixmap (GDK_PIXMAP_XDISPLAY (pixmap),
 174                                   GDK_WINDOW_XID (window),
 175                                   width, height, depth);
 176
 177   pix_impl->is_foreign = FALSE;
 178   pix_impl->width = width;
 179   pix_impl->height = height;
 180   GDK_PIXMAP_OBJECT (pixmap)->depth = depth;
 181
 182   if (window)
 183     {
 184       cmap = gdk_drawable_get_colormap (window);
 185       if (cmap)
 186         gdk_drawable_set_colormap (pixmap, cmap);
 187     }
 188
 189   gdk_xid_table_insert (&GDK_PIXMAP_XID (pixmap), pixmap);
 190
 191   return pixmap;
 192 }
 193
 194 GdkPixmap *
 195 gdk_bitmap_create_from_data (GdkWindow   *window,
 196                              const gchar *data,
 197                              gint         width,
 198                              gint         height)
 199 {
 200   GdkPixmap *pixmap;
 201   GdkDrawableImplX11 *draw_impl;
 202   GdkPixmapImplX11 *pix_impl;
 203
 204   g_return_val_if_fail (data != NULL, NULL);
 205   g_return_val_if_fail ((width != 0) && (height != 0), NULL);
 206   g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), NULL);
 207
 208   if (!window)
 209     window = gdk_parent_root;
 210
 211   if (GDK_WINDOW_DESTROYED (window))
 212     return NULL;
 213
 214   pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
 215   draw_impl = GDK_DRAWABLE_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 216   pix_impl = GDK_PIXMAP_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 217   draw_impl->wrapper = GDK_DRAWABLE (pixmap);
 218
 219   pix_impl->is_foreign = FALSE;
 220   pix_impl->width = width;
 221   pix_impl->height = height;
 222   GDK_PIXMAP_OBJECT (pixmap)->depth = 1;
 223
 224   draw_impl->xdisplay = GDK_WINDOW_XDISPLAY (window);
 225   draw_impl->xid = XCreateBitmapFromData (GDK_WINDOW_XDISPLAY (window),
 226                                           GDK_WINDOW_XID (window),
 227                                           (char *)data, width, height);
 228
 229   gdk_xid_table_insert (&GDK_PIXMAP_XID (pixmap), pixmap);
 230
 231   return pixmap;
 232 }
 233
 234 GdkPixmap*
 235 gdk_pixmap_create_from_data (GdkWindow   *window,
 236                              const gchar *data,
 237                              gint         width,
 238                              gint         height,
 239                              gint         depth,
 240                              GdkColor    *fg,
 241                              GdkColor    *bg)
 242 {
 243   GdkPixmap *pixmap;
 244   GdkDrawableImplX11 *draw_impl;
 245   GdkPixmapImplX11 *pix_impl;
 246
 247   g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), NULL);
 248   g_return_val_if_fail (data != NULL, NULL);
 249   g_return_val_if_fail (fg != NULL, NULL);
 250   g_return_val_if_fail (bg != NULL, NULL);
 251   g_return_val_if_fail ((window != NULL) || (depth != -1), NULL);
 252   g_return_val_if_fail ((width != 0) && (height != 0), NULL);
 253
 254   if (!window)
 255     window = gdk_parent_root;
 256
 257   if (GDK_WINDOW_DESTROYED (window))
 258     return NULL;
 259
 260   if (depth == -1)
 261     depth = gdk_drawable_get_visual (window)->depth;
 262
 263   pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
 264   draw_impl = GDK_DRAWABLE_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 265   pix_impl = GDK_PIXMAP_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 266   draw_impl->wrapper = GDK_DRAWABLE (pixmap);
 267
 268   pix_impl->is_foreign = FALSE;
 269   pix_impl->width = width;
 270   pix_impl->height = height;
 271   GDK_PIXMAP_OBJECT (pixmap)->depth = depth;
 272
 273   draw_impl->xdisplay = GDK_DRAWABLE_XDISPLAY (window);
 274   draw_impl->xid = XCreatePixmapFromBitmapData (GDK_WINDOW_XDISPLAY (window),
 275                                                 GDK_WINDOW_XID (window),
 276                                                 (char *)data, width, height,
 277                                                 fg->pixel, bg->pixel, depth);
 278
 279   gdk_xid_table_insert (&GDK_PIXMAP_XID (pixmap), pixmap);
 280
 281   return pixmap;
 282 }
 283
 284 GdkPixmap*
 285 gdk_pixmap_foreign_new (GdkNativeWindow anid)
 286 {
 287   GdkPixmap *pixmap;
 288   GdkDrawableImplX11 *draw_impl;
 289   GdkPixmapImplX11 *pix_impl;
 290   Pixmap xpixmap;
 291   Window root_return;
 292   unsigned int x_ret, y_ret, w_ret, h_ret, bw_ret, depth_ret;
 293
 294   /* check to make sure we were passed something at
 295      least a little sane */
 296   g_return_val_if_fail((anid != 0), NULL);
 297
 298   /* set the pixmap to the passed in value */
 299   xpixmap = anid;
 300
 301   /* get information about the Pixmap to fill in the structure for
 302      the gdk window */
 303   if (!XGetGeometry(GDK_DISPLAY(),
 304                     xpixmap, &root_return,
 305                     &x_ret, &y_ret, &w_ret, &h_ret, &bw_ret, &depth_ret))
 306       return NULL;
 307
 308   pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
 309   draw_impl = GDK_DRAWABLE_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 310   pix_impl = GDK_PIXMAP_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
 311   draw_impl->wrapper = GDK_DRAWABLE (pixmap);
 312
 313
 314   draw_impl->xdisplay = GDK_DISPLAY ();
 315   draw_impl->xid = xpixmap;
 316
 317   pix_impl->is_foreign = TRUE;
 318   pix_impl->width = w_ret;
 319   pix_impl->height = h_ret;
 320   GDK_PIXMAP_OBJECT (pixmap)->depth = depth_ret;
 321
 322   gdk_xid_table_insert(&GDK_PIXMAP_XID (pixmap), pixmap);
 323
 324   return pixmap;
 325 }