1/* (C)opyright MMIV-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  2 * See LICENSE file for license details.
  3 */
  4#include "dwm.h"
  5#include <stdio.h>
  6#include <string.h>
  7
  8/* static */
  9
 10static Bool
 11isoccupied(unsigned int t)
 12{
 13	Client *c;
 14	for(c = clients; c; c = c->next)
 15		if(c->tags[t])
 16			return True;
 17	return False;
 18}
 19
 20static unsigned int
 21textnw(const char *text, unsigned int len) {
 22	XRectangle r;
 23
 24	if(dc.font.set) {
 25		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 26		return r.width;
 27	}
 28	return XTextWidth(dc.font.xfont, text, len);
 29}
 30
 31static void
 32drawtext(const char *text, unsigned long col[ColLast], Bool filledsquare, Bool emptysquare) {
 33	int x, y, w, h;
 34	static char buf[256];
 35	unsigned int len, olen;
 36	XGCValues gcv;
 37	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 38
 39	XSetForeground(dpy, dc.gc, col[ColBG]);
 40	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 41	if(!text)
 42		return;
 43	w = 0;
 44	olen = len = strlen(text);
 45	if(len >= sizeof buf)
 46		len = sizeof buf - 1;
 47	memcpy(buf, text, len);
 48	buf[len] = 0;
 49	h = dc.font.ascent + dc.font.descent;
 50	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 51	x = dc.x + (h / 2);
 52	/* shorten text if necessary */
 53	while(len && (w = textnw(buf, len)) > dc.w - h)
 54		buf[--len] = 0;
 55	if(len < olen) {
 56		if(len > 1)
 57			buf[len - 1] = '.';
 58		if(len > 2)
 59			buf[len - 2] = '.';
 60		if(len > 3)
 61			buf[len - 3] = '.';
 62	}
 63	if(w > dc.w)
 64		return; /* too long */
 65	gcv.foreground = col[ColFG];
 66	if(dc.font.set) {
 67		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
 68		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 69	}
 70	else {
 71		gcv.font = dc.font.xfont->fid;
 72		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
 73		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 74	}
 75	x = (h + 2) / 4;
 76	r.x = dc.x + 1;
 77	r.y = dc.y + 1;
 78	if(filledsquare) {
 79		r.width = r.height = x + 1;
 80		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 81	}
 82	else if(emptysquare) {
 83		r.width = r.height = x;
 84		XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 85	}
 86}
 87
 88/* extern */
 89
 90void
 91drawstatus(void) {
 92	int i, x;
 93
 94	dc.x = dc.y = 0;
 95	for(i = 0; i < ntags; i++) {
 96		dc.w = textw(tags[i]);
 97		if(seltag[i])
 98			drawtext(tags[i], dc.sel, sel && sel->tags[i], isoccupied(i));
 99		else
100			drawtext(tags[i], dc.norm, sel && sel->tags[i], isoccupied(i));
101		dc.x += dc.w;
102	}
103	dc.w = bmw;
104	drawtext(arrange == dofloat ? FLOATSYMBOL : TILESYMBOL, dc.norm, False, False);
105	x = dc.x + dc.w;
106	dc.w = textw(stext);
107	dc.x = sw - dc.w;
108	if(dc.x < x) {
109		dc.x = x;
110		dc.w = sw - x;
111	}
112	drawtext(stext, dc.norm, False, False);
113	if((dc.w = dc.x - x) > bh) {
114		dc.x = x;
115		drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False, False);
116	}
117	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
118	XSync(dpy, False);
119}
120
121unsigned long
122getcolor(const char *colstr) {
123	Colormap cmap = DefaultColormap(dpy, screen);
124	XColor color;
125
126	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
127		eprint("error, cannot allocate color '%s'\n", colstr);
128	return color.pixel;
129}
130
131void
132setfont(const char *fontstr) {
133	char *def, **missing;
134	int i, n;
135
136	missing = NULL;
137	if(dc.font.set)
138		XFreeFontSet(dpy, dc.font.set);
139	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
140	if(missing) {
141		while(n--)
142			fprintf(stderr, "missing fontset: %s\n", missing[n]);
143		XFreeStringList(missing);
144	}
145	if(dc.font.set) {
146		XFontSetExtents *font_extents;
147		XFontStruct **xfonts;
148		char **font_names;
149		dc.font.ascent = dc.font.descent = 0;
150		font_extents = XExtentsOfFontSet(dc.font.set);
151		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
152		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
153			if(dc.font.ascent < (*xfonts)->ascent)
154				dc.font.ascent = (*xfonts)->ascent;
155			if(dc.font.descent < (*xfonts)->descent)
156				dc.font.descent = (*xfonts)->descent;
157			xfonts++;
158		}
159	}
160	else {
161		if(dc.font.xfont)
162			XFreeFont(dpy, dc.font.xfont);
163		dc.font.xfont = NULL;
164		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
165			eprint("error, cannot load font: '%s'\n", fontstr);
166		dc.font.ascent = dc.font.xfont->ascent;
167		dc.font.descent = dc.font.xfont->descent;
168	}
169	dc.font.height = dc.font.ascent + dc.font.descent;
170}
171
172unsigned int
173textw(const char *text) {
174	return textnw(text, strlen(text)) + dc.font.height;
175}