1 /* robwidget - gtk2 & GL wrapper
2 *
3 * Copyright (C) 2013 Robin Gareus <robin@gareus.org>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
8 * any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20 #ifndef COMMON_CAIRO_H
21 #define COMMON_CAIRO_H
22
get_font_from_gtk()23 static PangoFontDescription * get_font_from_gtk () {
24 PangoFontDescription * rv;
25 GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
26 GtkWidget *foobar = gtk_label_new("Foobar");
27 gtk_container_add(GTK_CONTAINER(window), foobar);
28 gtk_widget_ensure_style(foobar);
29
30 PangoContext* pc = gtk_widget_get_pango_context(foobar);
31 PangoFontDescription const * pfd = pango_context_get_font_description (pc);
32 rv = pango_font_description_copy (pfd);
33 gtk_widget_destroy(foobar);
34 gtk_widget_destroy(window);
35 assert(rv);
36 return rv;
37 }
38
get_color_from_gtk(GdkColor * c,int which)39 static void get_color_from_gtk (GdkColor *c, int which) {
40 GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
41 GtkWidget *foobar = gtk_label_new("Foobar");
42 gtk_container_add(GTK_CONTAINER(window), foobar);
43 gtk_widget_ensure_style(foobar);
44
45 GtkStyle *style = gtk_widget_get_style(foobar);
46 switch (which) {
47 default:
48 memcpy((void*) c, (void*) &style->fg[GTK_STATE_NORMAL], sizeof(GdkColor));
49 break;
50 case 1:
51 memcpy((void*) c, (void*) &style->bg[GTK_STATE_NORMAL], sizeof(GdkColor));
52 break;
53 case 2:
54 memcpy((void*) c, (void*) &style->fg[GTK_STATE_ACTIVE], sizeof(GdkColor));
55 break;
56 }
57 gtk_widget_destroy(foobar);
58 gtk_widget_destroy(window);
59 }
60
61 static float robtk_colorcache[3][4];
62 static bool robtk_colorcached[3] = { false, false, false };
63
get_color_from_theme(int which,float * col)64 static void get_color_from_theme (int which, float *col) {
65 GdkColor color;
66 assert(which >= 0 && which <= 2);
67
68 if (robtk_colorcached[which]) {
69 memcpy(col, robtk_colorcache[which], 4 * sizeof(float));
70 } else {
71 get_color_from_gtk(&color, which);
72 col[0] = color.red/65536.0;
73 col[1] = color.green/65536.0;
74 col[2] = color.blue/65536.0;
75 col[3] = 1.0;
76 memcpy(robtk_colorcache[which], col, 4 * sizeof(float));
77 robtk_colorcached[which] = true;
78 }
79 }
80
get_font_from_theme()81 static PangoFontDescription * get_font_from_theme () {
82 return get_font_from_gtk(); // TODO cache this -- but how to free on exit?
83 }
84
85 #endif
86