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> #include <X11/Xlocale.h> /* static */ static void drawborder(void) { XPoint points[5]; XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); XSetForeground(dpy, dc.gc, dc.border); points[0].x = dc.x; points[0].y = dc.y; points[1].x = dc.w - 1; points[1].y = 0; points[2].x = 0; points[2].y = dc.h - 1; points[3].x = -(dc.w - 1); points[3].y = 0; points[4].x = 0; points[4].y = -(dc.h - 1); XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious); } 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, Bool invert, Bool border) { int x, y, w, h; static char buf[256]; unsigned int len; XGCValues gcv; XRectangle r = { dc.x, dc.y, dc.w, dc.h }; XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg); XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); w = 0; if(border) drawborder(); if(!text) return; 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(w > dc.w) return; /* too long */ gcv.foreground = invert ? dc.bg : dc.fg; gcv.background = invert ? dc.fg : dc.bg; if(dc.font.set) { XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv); XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); } else { gcv.font = dc.font.xfont->fid; XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv); XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len); } } unsigned long getcolor(const char *colstr) { Colormap cmap = DefaultColormap(dpy, screen); XColor color; XAllocNamedColor(dpy, cmap, colstr, &color, &color); return color.pixel; } void setfont(const char *fontstr) { char **missing, *def; int i, n; missing = NULL; setlocale(LC_ALL, ""); 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) { XFreeFontSet(dpy, dc.font.set); dc.font.set = NULL; } } 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; }