diff options
Diffstat (limited to 'font.c')
| -rw-r--r-- | font.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/font.c b/font.c new file mode 100644 index 0000000..99301b5 --- /dev/null +++ b/font.c @@ -0,0 +1,81 @@ +/* + * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com> + * See LICENSE file for license details. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <locale.h> + +unsigned int +textwidth_l(BlitzFont *font, char *text, unsigned int len) +{ + if(font->set) { + XRectangle r; + XmbTextExtents(font->set, text, len, nil, &r); + return r.width; + } + return XTextWidth(font->xfont, text, len); +} + +unsigned int +textwidth(BlitzFont *font, char *text) +{ + return blitz_textwidth_l(font, text, strlen(text)); +} + +void +loadfont(Blitz *blitz, BlitzFont *font) +{ + char *fontname = font->fontstr; + char **missing = nil, *def = "?"; + int n; + + setlocale(LC_ALL, ""); + if(font->set) + XFreeFontSet(blitz->dpy, font->set); + font->set = XCreateFontSet(blitz->dpy, fontname, &missing, &n, &def); + if(missing) { + while(n--) + fprintf(stderr, "liblitz: missing fontset: %s\n", missing[n]); + XFreeStringList(missing); + if(font->set) { + XFreeFontSet(blitz->dpy, font->set); + font->set = nil; + } + } + if(font->set) { + XFontSetExtents *font_extents; + XFontStruct **xfonts; + char **font_names; + unsigned int i; + + font->ascent = font->descent = 0; + font_extents = XExtentsOfFontSet(font->set); + n = XFontsOfFontSet(font->set, &xfonts, &font_names); + for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) { + if(font->ascent < (*xfonts)->ascent) + font->ascent = (*xfonts)->ascent; + if(font->descent < (*xfonts)->descent) + font->descent = (*xfonts)->descent; + xfonts++; + } + } + else { + if(font->xfont) + XFreeFont(blitz->dpy, font->xfont); + font->xfont = nil; + font->xfont = XLoadQueryFont(blitz->dpy, fontname); + if (!font->xfont) { + fontname = "fixed"; + font->xfont = XLoadQueryFont(blitz->dpy, fontname); + } + if (!font->xfont) { + fprintf(stderr, "%s", "liblitz: error, cannot load 'fixed' font\n"); + exit(1); + } + font->ascent = font->xfont->ascent; + font->descent = font->xfont->descent; + } +} |