1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library 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.
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 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library 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.
19 #include "../config.h"
23 /* Needed for SEEK_END in SunOS */
28 #include "gdkprivate.h"
38 gdk_pixmap_new (GdkWindow *window,
44 GdkWindowPrivate *private;
45 GdkWindowPrivate *window_private;
47 g_return_val_if_fail ((window != NULL) || (depth != -1), NULL);
48 g_return_val_if_fail ((width != 0) && (height != 0), NULL);
51 window = (GdkWindow*) &gdk_root_parent;
53 window_private = (GdkWindowPrivate*) window;
54 if (window_private->destroyed)
58 depth = gdk_window_get_visual (window)->depth;
60 private = g_new (GdkWindowPrivate, 1);
61 pixmap = (GdkPixmap*) private;
63 private->xdisplay = window_private->xdisplay;
64 private->window_type = GDK_WINDOW_PIXMAP;
65 private->xwindow = XCreatePixmap (private->xdisplay, window_private->xwindow,
66 width, height, depth);
67 private->colormap = NULL;
68 private->parent = NULL;
71 private->width = width;
72 private->height = height;
73 private->resize_count = 0;
74 private->ref_count = 1;
75 private->destroyed = 0;
77 gdk_xid_table_insert (&private->xwindow, pixmap);
83 gdk_bitmap_create_from_data (GdkWindow *window,
89 GdkWindowPrivate *private;
90 GdkWindowPrivate *window_private;
92 g_return_val_if_fail (data != NULL, NULL);
93 g_return_val_if_fail ((width != 0) && (height != 0), NULL);
96 window = (GdkWindow*) &gdk_root_parent;
98 window_private = (GdkWindowPrivate*) window;
99 if (window_private->destroyed)
102 private = g_new (GdkWindowPrivate, 1);
103 pixmap = (GdkPixmap*) private;
105 private->parent = NULL;
106 private->xdisplay = window_private->xdisplay;
107 private->window_type = GDK_WINDOW_PIXMAP;
110 private->width = width;
111 private->height = height;
112 private->resize_count = 0;
113 private->ref_count = 1;
114 private->destroyed = FALSE;
116 private->xwindow = XCreateBitmapFromData (private->xdisplay,
117 window_private->xwindow,
118 data, width, height);
120 gdk_xid_table_insert (&private->xwindow, pixmap);
126 gdk_pixmap_create_from_data (GdkWindow *window,
135 GdkWindowPrivate *private;
136 GdkWindowPrivate *window_private;
138 g_return_val_if_fail (data != NULL, NULL);
139 g_return_val_if_fail (fg != NULL, NULL);
140 g_return_val_if_fail (bg != NULL, NULL);
141 g_return_val_if_fail ((window != NULL) || (depth != -1), NULL);
142 g_return_val_if_fail ((width != 0) && (height != 0), NULL);
145 window = (GdkWindow*) &gdk_root_parent;
147 window_private = (GdkWindowPrivate*) window;
148 if (window_private->destroyed)
152 depth = gdk_window_get_visual (window)->depth;
154 private = g_new (GdkWindowPrivate, 1);
155 pixmap = (GdkPixmap*) private;
157 private->parent = NULL;
158 private->xdisplay = window_private->xdisplay;
159 private->window_type = GDK_WINDOW_PIXMAP;
162 private->width = width;
163 private->height = height;
164 private->resize_count = 0;
165 private->ref_count = 1;
166 private->destroyed = FALSE;
168 private->xwindow = XCreatePixmapFromBitmapData (private->xdisplay,
169 window_private->xwindow,
171 fg->pixel, bg->pixel, depth);
173 gdk_xid_table_insert (&private->xwindow, pixmap);
179 gdk_pixmap_seek_string (FILE *infile,
185 while (!feof (infile))
187 fscanf (infile, "%1023s", instr);
188 if (skip_comments == TRUE && strcmp (instr, "/*") == 0)
190 fscanf (infile, "%1023s", instr);
191 while (!feof (infile) && strcmp (instr, "*/") != 0)
192 fscanf (infile, "%1023s", instr);
193 fscanf(infile, "%1023s", instr);
195 if (strcmp (instr, str)==0)
203 gdk_pixmap_seek_char (FILE *infile,
208 while ((b = getc(infile)) != EOF)
210 if (c != b && b == '/')
215 else if (b == '*') /* we have a comment */
225 while (!(oldb == '*' && b == '/'));
235 gdk_pixmap_read_string (FILE *infile,
242 if ((*buffer) == NULL)
244 (*buffer_size) = 10 * sizeof (gchar);
245 (*buffer) = g_new(gchar, *buffer_size);
250 while (c != EOF && c != '"');
255 while ((c = getc(infile)) != EOF)
257 if (cnt == (*buffer_size))
259 guint new_size = (*buffer_size) * 2;
260 if (new_size > (*buffer_size))
261 *buffer_size = new_size;
265 (*buffer) = (gchar *) g_realloc ((*buffer), *buffer_size);
269 (*buffer)[cnt++] = c;
272 (*buffer)[cnt++] = 0;
281 gdk_pixmap_skip_whitespaces (gchar *buffer)
285 while (buffer[index] != 0 && (buffer[index] == 0x20 || buffer[index] == 0x09))
288 return &buffer[index];
292 gdk_pixmap_skip_string (gchar *buffer)
296 while (buffer[index] != 0 && buffer[index] != 0x20 && buffer[index] != 0x09)
299 return &buffer[index];
303 gdk_pixmap_extract_color (gchar *buffer)
305 gint counter, finished = FALSE, numnames;
306 gchar *ptr = NULL, ch, temp[128];
307 gchar color[128], *retcol;
312 if (buffer[counter] == 'c')
314 ch = buffer[counter + 1];
315 if (ch == 0x20 || ch == 0x09)
316 ptr = &buffer[counter + 1];
318 else if (buffer[counter] == 0)
327 ptr = gdk_pixmap_skip_whitespaces (ptr);
331 else if (ptr[0] == '#')
333 retcol = g_strdup (ptr);
340 while (finished == FALSE)
342 sscanf (ptr, "%127s", temp);
344 if ((gint)ptr[0] == 0 || strcmp ("s", temp) == 0 || strcmp ("m", temp) == 0 ||
345 strcmp ("g", temp) == 0 || strcmp ("g4", temp) == 0)
351 strcat (color, temp);
352 ptr = gdk_pixmap_skip_string (ptr);
353 ptr = gdk_pixmap_skip_whitespaces (ptr);
358 retcol = g_strdup (color);
364 gdk_pixmap_colormap_create_from_xpm (GdkWindow *window,
365 GdkColormap *colormap,
367 GdkColor *transparent_color,
368 const gchar *filename)
371 GdkPixmap *pixmap = NULL;
372 GdkImage *image = NULL;
376 gint width, height, num_cols, cpp, cnt, n, ns, xcnt, ycnt;
377 gchar *buffer = NULL, pixel_str[32];
378 guint buffer_size = 0;
379 _GdkPixmapColor *colors = NULL, *color = NULL;
382 if ((window == NULL) && (colormap == NULL))
383 g_warning ("Creating pixmap from xpm with NULL window and colormap");
386 window = (GdkWindow *)&gdk_root_parent;
388 if (colormap == NULL)
390 colormap = gdk_window_get_colormap (window);
391 visual = gdk_window_get_visual (window);
394 visual = ((GdkColormapPrivate *)colormap)->visual;
396 infile = fopen (filename, "rb");
399 if (gdk_pixmap_seek_string (infile, "XPM", FALSE) == TRUE)
401 if (gdk_pixmap_seek_char (infile,'{') == TRUE)
403 gdk_pixmap_seek_char (infile, '"');
404 fseek (infile, -1, SEEK_CUR);
405 gdk_pixmap_read_string (infile, &buffer, &buffer_size);
407 sscanf (buffer,"%d %d %d %d", &width, &height, &num_cols, &cpp);
410 g_warning ("Pixmap has more than 31 characters per color\n");
414 colors = g_new(_GdkPixmapColor, num_cols);
416 if (transparent_color == NULL)
418 gdk_color_white (colormap, &tmp_color);
419 transparent_color = &tmp_color;
422 for (cnt = 0; cnt < num_cols; cnt++)
426 gdk_pixmap_seek_char (infile, '"');
427 fseek (infile, -1, SEEK_CUR);
428 gdk_pixmap_read_string (infile, &buffer, &buffer_size);
430 colors[cnt].color_string = g_new(gchar, cpp + 1);
431 for (n = 0; n < cpp; n++)
432 colors[cnt].color_string[n] = buffer[n];
433 colors[cnt].color_string[n] = 0;
434 colors[cnt].transparent = FALSE;
436 color_name = gdk_pixmap_extract_color (&buffer[cpp]);
438 if (color_name != NULL)
440 if (gdk_color_parse (color_name, &colors[cnt].color) == FALSE)
442 colors[cnt].color = *transparent_color;
443 colors[cnt].transparent = TRUE;
448 colors[cnt].color = *transparent_color;
449 colors[cnt].transparent = TRUE;
454 gdk_color_alloc (colormap, &colors[cnt].color);
458 image = gdk_image_new (GDK_IMAGE_FASTEST, visual, width, height);
463 /* The pixmap mask is just a bits pattern.
464 * Color 0 is used for background and 1 for foreground.
465 * We don't care about the colormap, we just need 0 and 1.
467 GdkColor mask_pattern;
469 *mask = gdk_pixmap_new (window, width, height, 1);
470 gc = gdk_gc_new (*mask);
472 mask_pattern.pixel = 0;
473 gdk_gc_set_foreground (gc, &mask_pattern);
474 gdk_draw_rectangle (*mask, gc, TRUE, 0, 0, -1, -1);
476 mask_pattern.pixel = 1;
477 gdk_gc_set_foreground (gc, &mask_pattern);
480 for (ycnt = 0; ycnt < height; ycnt++)
482 gdk_pixmap_read_string (infile, &buffer, &buffer_size);
484 for (n = 0, cnt = 0, xcnt = 0; n < (width * cpp); n += cpp, xcnt++)
486 strncpy (pixel_str, &buffer[n], cpp);
491 while ((color == NULL) && (ns < num_cols))
493 if (strcmp (pixel_str, colors[ns].color_string) == 0)
499 if (!color) /* screwed up XPM file */
502 gdk_image_put_pixel (image, xcnt, ycnt, color->color.pixel);
504 if (mask && color->transparent)
507 gdk_draw_line (*mask, gc, cnt, ycnt, xcnt - 1, ycnt);
512 if (mask && (cnt < xcnt))
513 gdk_draw_line (*mask, gc, cnt, ycnt, xcnt - 1, ycnt);
519 pixmap = gdk_pixmap_new (window, width, height, visual->depth);
521 gc = gdk_gc_new (pixmap);
522 gdk_gc_set_foreground (gc, transparent_color);
523 gdk_draw_image (pixmap, gc, image, 0, 0, 0, 0, image->width, image->height);
525 gdk_image_destroy (image);
534 for (cnt = 0; cnt < num_cols; cnt++)
535 g_free (colors[cnt].color_string);
544 gdk_pixmap_create_from_xpm (GdkWindow *window,
546 GdkColor *transparent_color,
547 const gchar *filename)
549 return gdk_pixmap_colormap_create_from_xpm (window, NULL, mask,
550 transparent_color, filename);
555 gdk_pixmap_colormap_create_from_xpm_d (GdkWindow *window,
556 GdkColormap *colormap,
558 GdkColor *transparent_color,
561 GdkPixmap *pixmap = NULL;
562 GdkImage *image = NULL;
566 gint width, height, num_cols, cpp, cnt, n, ns, xcnt, ycnt, i;
567 gchar *buffer, pixel_str[32];
568 _GdkPixmapColor *colors = NULL, *color = NULL;
571 if ((window == NULL) && (colormap == NULL))
572 g_warning ("Creating pixmap from xpm with NULL window and colormap");
575 window = (GdkWindow *)&gdk_root_parent;
577 if (colormap == NULL)
579 colormap = gdk_window_get_colormap (window);
580 visual = gdk_window_get_visual (window);
583 visual = ((GdkColormapPrivate *)colormap)->visual;
587 sscanf (buffer,"%d %d %d %d", &width, &height, &num_cols, &cpp);
590 g_warning ("Pixmap has more than 31 characters per color\n");
594 colors = g_new(_GdkPixmapColor, num_cols);
596 if (transparent_color == NULL)
598 gdk_color_white (colormap, &tmp_color);
599 transparent_color = &tmp_color;
602 for (cnt = 0; cnt < num_cols; cnt++)
608 colors[cnt].color_string = g_new(gchar, cpp + 1);
609 for (n = 0; n < cpp; n++)
610 colors[cnt].color_string[n] = buffer[n];
611 colors[cnt].color_string[n] = 0;
612 colors[cnt].transparent = FALSE;
614 color_name = gdk_pixmap_extract_color (&buffer[cpp]);
616 if (color_name != NULL)
618 if (gdk_color_parse (color_name, &colors[cnt].color) == FALSE)
620 colors[cnt].color = *transparent_color;
621 colors[cnt].transparent = TRUE;
626 colors[cnt].color = *transparent_color;
627 colors[cnt].transparent = TRUE;
632 gdk_color_alloc (colormap, &colors[cnt].color);
636 image = gdk_image_new (GDK_IMAGE_FASTEST, visual, width, height);
641 /* The pixmap mask is just a bits pattern.
642 * Color 0 is used for background and 1 for foreground.
643 * We don't care about the colormap, we just need 0 and 1.
645 GdkColor mask_pattern;
647 *mask = gdk_pixmap_new (window, width, height, 1);
648 gc = gdk_gc_new (*mask);
650 mask_pattern.pixel = 0;
651 gdk_gc_set_foreground (gc, &mask_pattern);
652 gdk_draw_rectangle (*mask, gc, TRUE, 0, 0, -1, -1);
654 mask_pattern.pixel = 1;
655 gdk_gc_set_foreground (gc, &mask_pattern);
658 for (ycnt = 0; ycnt < height; ycnt++)
662 for (n = 0, cnt = 0, xcnt = 0; n < (width * cpp); n += cpp, xcnt++)
664 strncpy (pixel_str, &buffer[n], cpp);
669 while ((color == NULL) && (ns < num_cols))
671 if (strcmp (pixel_str, colors[ns].color_string) == 0)
677 if (!color) /* screwed up XPM file */
680 gdk_image_put_pixel (image, xcnt, ycnt, color->color.pixel);
682 if (mask && color->transparent)
685 gdk_draw_line (*mask, gc, cnt, ycnt, xcnt - 1, ycnt);
690 if (mask && (cnt < xcnt))
691 gdk_draw_line (*mask, gc, cnt, ycnt, xcnt - 1, ycnt);
697 pixmap = gdk_pixmap_new (window, width, height, visual->depth);
699 gc = gdk_gc_new (pixmap);
700 gdk_gc_set_foreground (gc, transparent_color);
701 gdk_draw_image (pixmap, gc, image, 0, 0, 0, 0, image->width, image->height);
703 gdk_image_destroy (image);
707 for (cnt = 0; cnt < num_cols; cnt++)
708 g_free (colors[cnt].color_string);
716 gdk_pixmap_create_from_xpm_d (GdkWindow *window,
718 GdkColor *transparent_color,
721 return gdk_pixmap_colormap_create_from_xpm_d (window, NULL, mask,
722 transparent_color, data);
726 gdk_pixmap_ref (GdkPixmap *pixmap)
728 GdkWindowPrivate *private = (GdkWindowPrivate *)pixmap;
729 g_return_val_if_fail (pixmap != NULL, NULL);
731 private->ref_count += 1;
736 gdk_pixmap_unref (GdkPixmap *pixmap)
738 GdkWindowPrivate *private = (GdkWindowPrivate *)pixmap;
739 g_return_if_fail(pixmap != NULL);
741 private->ref_count -= 1;
742 if (private->ref_count == 0)
744 XFreePixmap (private->xdisplay, private->xwindow);
745 gdk_xid_table_remove (private->xwindow);
751 gdk_bitmap_ref (GdkBitmap *bitmap)
753 return (GdkBitmap *)gdk_pixmap_ref ((GdkPixmap *)bitmap);
757 gdk_bitmap_unref (GdkBitmap *bitmap)
759 gdk_pixmap_unref ((GdkPixmap *)bitmap);