font.c
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/* * (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, "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", "error, cannot load 'fixed' font\n"); exit(1); } font->ascent = font->xfont->ascent; font->descent = font->xfont->descent; } }