82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
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/*
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* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
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* See LICENSE file for license details.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <locale.h>
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unsigned int
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textwidth_l(BlitzFont *font, char *text, unsigned int len)
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{
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if(font->set) {
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XRectangle r;
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XmbTextExtents(font->set, text, len, nil, &r);
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return r.width;
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}
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return XTextWidth(font->xfont, text, len);
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}
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unsigned int
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textwidth(BlitzFont *font, char *text)
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{
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return blitz_textwidth_l(font, text, strlen(text));
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}
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void
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loadfont(Blitz *blitz, BlitzFont *font)
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{
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char *fontname = font->fontstr;
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char **missing = nil, *def = "?";
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int n;
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setlocale(LC_ALL, "");
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if(font->set)
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XFreeFontSet(blitz->dpy, font->set);
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font->set = XCreateFontSet(blitz->dpy, fontname, &missing, &n, &def);
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if(missing) {
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while(n--)
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fprintf(stderr, "liblitz: missing fontset: %s\n", missing[n]);
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XFreeStringList(missing);
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if(font->set) {
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XFreeFontSet(blitz->dpy, font->set);
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font->set = nil;
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}
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}
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if(font->set) {
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XFontSetExtents *font_extents;
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XFontStruct **xfonts;
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char **font_names;
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unsigned int i;
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font->ascent = font->descent = 0;
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font_extents = XExtentsOfFontSet(font->set);
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n = XFontsOfFontSet(font->set, &xfonts, &font_names);
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for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) {
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if(font->ascent < (*xfonts)->ascent)
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font->ascent = (*xfonts)->ascent;
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if(font->descent < (*xfonts)->descent)
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font->descent = (*xfonts)->descent;
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xfonts++;
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}
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}
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else {
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if(font->xfont)
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XFreeFont(blitz->dpy, font->xfont);
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font->xfont = nil;
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font->xfont = XLoadQueryFont(blitz->dpy, fontname);
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if (!font->xfont) {
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fontname = "fixed";
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font->xfont = XLoadQueryFont(blitz->dpy, fontname);
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}
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if (!font->xfont) {
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fprintf(stderr, "%s", "liblitz: error, cannot load 'fixed' font\n");
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exit(1);
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}
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font->ascent = font->xfont->ascent;
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font->descent = font->xfont->descent;
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}
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}
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