draw.c
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/* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com> * See LICENSE file for license details. */ #include "dmenu.h" #include <stdio.h> #include <string.h> /* static */ static unsigned int textnw(const char *text, unsigned int len) { XRectangle r; if(dc.font.set) { XmbTextExtents(dc.font.set, text, len, NULL, &r); return r.width; } return XTextWidth(dc.font.xfont, text, len); } /* extern */ void drawtext(const char *text, unsigned long col[ColLast]) { int x, y, w, h; static char buf[256]; unsigned int len, olen; XGCValues gcv; XRectangle r = { dc.x, dc.y, dc.w, dc.h }; XSetForeground(dpy, dc.gc, col[ColBG]); XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); if(!text) return; w = 0; olen = len = strlen(text); if(len >= sizeof buf) len = sizeof buf - 1; memcpy(buf, text, len); buf[len] = 0; h = dc.font.ascent + dc.font.descent; y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent; x = dc.x + (h / 2); /* shorten text if necessary */ while(len && (w = textnw(buf, len)) > dc.w - h) buf[--len] = 0; if(len < olen) { if(len > 1) buf[len - 1] = '.'; if(len > 2) buf[len - 2] = '.'; if(len > 3) buf[len - 3] = '.'; } if(w > dc.w) return; /* too long */ gcv.foreground = col[ColFG]; if(dc.font.set) { XChangeGC(dpy, dc.gc, GCForeground, &gcv); XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); } else { gcv.font = dc.font.xfont->fid; XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv); XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); } } unsigned long getcolor(const char *colstr) { Colormap cmap = DefaultColormap(dpy, screen); XColor color; if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) eprint("error, cannot allocate color '%s'\n", colstr); return color.pixel; } void setfont(const char *fontstr) { char *def, **missing; int i, n; missing = NULL; if(dc.font.set) XFreeFontSet(dpy, dc.font.set); dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); if(missing) XFreeStringList(missing); if(dc.font.set) { XFontSetExtents *font_extents; XFontStruct **xfonts; char **font_names; dc.font.ascent = dc.font.descent = 0; font_extents = XExtentsOfFontSet(dc.font.set); n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { if(dc.font.ascent < (*xfonts)->ascent) dc.font.ascent = (*xfonts)->ascent; if(dc.font.descent < (*xfonts)->descent) dc.font.descent = (*xfonts)->descent; xfonts++; } } else { if(dc.font.xfont) XFreeFont(dpy, dc.font.xfont); dc.font.xfont = NULL; dc.font.xfont = XLoadQueryFont(dpy, fontstr); if (!dc.font.xfont) dc.font.xfont = XLoadQueryFont(dpy, "fixed"); if (!dc.font.xfont) eprint("error, cannot init 'fixed' font\n"); dc.font.ascent = dc.font.xfont->ascent; dc.font.descent = dc.font.xfont->descent; } dc.font.height = dc.font.ascent + dc.font.descent; } unsigned int textw(const char *text) { return textnw(text, strlen(text)) + dc.font.height; }