1 /*
2 * Copyright (C) 2000, Matias Atria
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program 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
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19 #include <config.h>
20 #include "mdvi.h"
21
mdvi_set_color(DviContext * dvi,Ulong fg,Ulong bg)22 void mdvi_set_color(DviContext *dvi, Ulong fg, Ulong bg)
23 {
24 if(dvi->curr_fg != fg || dvi->curr_bg != bg) {
25 DEBUG((DBG_DEVICE, "setting color to (%lu,%lu)\n", fg, bg));
26 if(dvi->device.set_color)
27 dvi->device.set_color(dvi->device.device_data, fg, bg);
28 dvi->curr_fg = fg;
29 dvi->curr_bg = bg;
30 }
31 }
32
mdvi_push_color(DviContext * dvi,Ulong fg,Ulong bg)33 void mdvi_push_color(DviContext *dvi, Ulong fg, Ulong bg)
34 {
35 if(dvi->color_top == dvi->color_size) {
36 dvi->color_size += 32;
37 dvi->color_stack = mdvi_realloc(dvi->color_stack,
38 dvi->color_size * sizeof(DviColorPair));
39 }
40 dvi->color_stack[dvi->color_top].fg = dvi->curr_fg;
41 dvi->color_stack[dvi->color_top].bg = dvi->curr_bg;
42 dvi->color_top++;
43 mdvi_set_color(dvi, fg, bg);
44 }
45
mdvi_pop_color(DviContext * dvi)46 void mdvi_pop_color(DviContext *dvi)
47 {
48 Ulong fg, bg;
49
50 if(dvi->color_top == 0)
51 return;
52 dvi->color_top--;
53 fg = dvi->color_stack[dvi->color_top].fg;
54 bg = dvi->color_stack[dvi->color_top].bg;
55 mdvi_set_color(dvi, fg, bg);
56 }
57
mdvi_reset_color(DviContext * dvi)58 void mdvi_reset_color(DviContext *dvi)
59 {
60 dvi->color_top = 0;
61 mdvi_set_color(dvi, dvi->params.fg, dvi->params.bg);
62 }
63
64