aewl
view font.c @ 8:7066ff2fe8bc
added key handling
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Tue, 11 Jul 2006 11:50:18 +0200 |
| parents | |
| children | d567f430a81d |
line source
1 /*
2 * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
4 */
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include <locale.h>
11 unsigned int
12 textwidth_l(BlitzFont *font, char *text, unsigned int len)
13 {
14 if(font->set) {
15 XRectangle r;
16 XmbTextExtents(font->set, text, len, nil, &r);
17 return r.width;
18 }
19 return XTextWidth(font->xfont, text, len);
20 }
22 unsigned int
23 textwidth(BlitzFont *font, char *text)
24 {
25 return blitz_textwidth_l(font, text, strlen(text));
26 }
28 void
29 loadfont(Blitz *blitz, BlitzFont *font)
30 {
31 char *fontname = font->fontstr;
32 char **missing = nil, *def = "?";
33 int n;
35 setlocale(LC_ALL, "");
36 if(font->set)
37 XFreeFontSet(blitz->dpy, font->set);
38 font->set = XCreateFontSet(blitz->dpy, fontname, &missing, &n, &def);
39 if(missing) {
40 while(n--)
41 fprintf(stderr, "liblitz: missing fontset: %s\n", missing[n]);
42 XFreeStringList(missing);
43 if(font->set) {
44 XFreeFontSet(blitz->dpy, font->set);
45 font->set = nil;
46 }
47 }
48 if(font->set) {
49 XFontSetExtents *font_extents;
50 XFontStruct **xfonts;
51 char **font_names;
52 unsigned int i;
54 font->ascent = font->descent = 0;
55 font_extents = XExtentsOfFontSet(font->set);
56 n = XFontsOfFontSet(font->set, &xfonts, &font_names);
57 for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) {
58 if(font->ascent < (*xfonts)->ascent)
59 font->ascent = (*xfonts)->ascent;
60 if(font->descent < (*xfonts)->descent)
61 font->descent = (*xfonts)->descent;
62 xfonts++;
63 }
64 }
65 else {
66 if(font->xfont)
67 XFreeFont(blitz->dpy, font->xfont);
68 font->xfont = nil;
69 font->xfont = XLoadQueryFont(blitz->dpy, fontname);
70 if (!font->xfont) {
71 fontname = "fixed";
72 font->xfont = XLoadQueryFont(blitz->dpy, fontname);
73 }
74 if (!font->xfont) {
75 fprintf(stderr, "%s", "liblitz: error, cannot load 'fixed' font\n");
76 exit(1);
77 }
78 font->ascent = font->xfont->ascent;
79 font->descent = font->xfont->descent;
80 }
81 }