1 #define __SP_CURSOR_C__
3 /*
4 * Some convenience stuff
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 *
9 * Copyright (C) 1999-2002 authors
10 * Copyright (C) 2001-2002 Ximian, Inc.
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
15 #include <cstdio>
16 #include <string.h>
17 #include <ctype.h>
18 #include "sp-cursor.h"
20 void sp_cursor_bitmap_and_mask_from_xpm (GdkBitmap **bitmap, GdkBitmap **mask, gchar **xpm)
21 {
22 int height;
23 int width;
24 int colors;
25 int pix;
26 sscanf(xpm[0], "%d %d %d %d", &height, &width, &colors, &pix);
28 g_return_if_fail (height == 32);
29 g_return_if_fail (width == 32);
30 g_return_if_fail (colors >= 3);
32 int transparent_color = ' ';
33 int black_color = '.';
35 char pixmap_buffer[(32 * 32)/8];
36 char mask_buffer[(32 * 32)/8];
38 for (int i = 0; i < colors; i++) {
40 char const *p = xpm[1 + i];
41 char const ccode = *p;
43 p++;
44 while (isspace(*p)) {
45 p++;
46 }
47 p++;
48 while (isspace(*p)) {
49 p++;
50 }
52 if (strcmp(p, "None") == 0) {
53 transparent_color = ccode;
54 }
56 if (strcmp(p, "#000000") == 0) {
57 black_color = ccode;
58 }
59 }
61 for (int y = 0; y < 32; y++) {
62 for (int x = 0; x < 32; ) {
64 char value = 0;
65 char maskv = 0;
67 for (int pix = 0; pix < 8; pix++, x++){
68 if (xpm [4+y][x] != transparent_color) {
69 maskv |= 1 << pix;
71 if (xpm [4+y][x] == black_color) {
72 value |= 1 << pix;
73 }
74 }
75 }
77 pixmap_buffer[(y * 4 + x/8)-1] = value;
78 mask_buffer[(y * 4 + x/8)-1] = maskv;
79 }
80 }
82 *bitmap = gdk_bitmap_create_from_data(NULL, pixmap_buffer, 32, 32);
83 *mask = gdk_bitmap_create_from_data(NULL, mask_buffer, 32, 32);
84 }
86 GdkCursor *sp_cursor_new_from_xpm (gchar **xpm, gint hot_x, gint hot_y)
87 {
88 GdkColor const fg = { 0, 0, 0, 0 };
89 GdkColor const bg = { 0, 65535, 65535, 65535 };
91 GdkBitmap *bitmap = NULL;
92 GdkBitmap *mask = NULL;
94 sp_cursor_bitmap_and_mask_from_xpm (&bitmap, &mask, xpm);
95 if ( bitmap != NULL && mask != NULL ) {
96 GdkCursor *new_cursor = gdk_cursor_new_from_pixmap (bitmap, mask,
97 &fg, &bg,
98 hot_x, hot_y);
99 g_object_unref (bitmap);
100 g_object_unref (mask);
101 return new_cursor;
102 }
104 return NULL;
105 }
107 /*
108 Local Variables:
109 mode:c++
110 c-file-style:"stroustrup"
111 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
112 indent-tabs-mode:nil
113 fill-column:99
114 End:
115 */
116 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :