1/*
  2 * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  3 * See LICENSE file for license details.
  4 */
  5#include "dwm.h"
  6#include <stdio.h>
  7#include <string.h>
  8#include <X11/Xlocale.h>
  9
 10/* static */
 11
 12static unsigned int
 13textnw(const char *text, unsigned int len)
 14{
 15	XRectangle r;
 16
 17	if(dc.font.set) {
 18		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 19		return r.width;
 20	}
 21	return XTextWidth(dc.font.xfont, text, len);
 22}
 23
 24static void
 25drawtext(const char *text, unsigned long col[ColLast], Bool highlight)
 26{
 27	int x, y, w, h;
 28	static char buf[256];
 29	unsigned int len, olen;
 30	XGCValues gcv;
 31	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 32
 33	XSetForeground(dpy, dc.gc, col[ColBG]);
 34	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 35
 36	if(!text)
 37		return;
 38
 39	w = 0;
 40	olen = len = strlen(text);
 41	if(len >= sizeof(buf))
 42		len = sizeof(buf) - 1;
 43	memcpy(buf, text, len);
 44	buf[len] = 0;
 45
 46	h = dc.font.ascent + dc.font.descent;
 47	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 48	x = dc.x + (h / 2);
 49
 50	/* shorten text if necessary */
 51	while(len && (w = textnw(buf, len)) > dc.w - h)
 52		buf[--len] = 0;
 53	if(len < olen) {
 54		if(len > 1)
 55			buf[len - 1] = '.';
 56		if(len > 2)
 57			buf[len - 2] = '.';
 58		if(len > 3)
 59			buf[len - 3] = '.';
 60	}
 61
 62	if(w > dc.w)
 63		return; /* too long */
 64	gcv.foreground = col[ColFG];
 65	if(dc.font.set) {
 66		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
 67		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 68	}
 69	else {
 70		gcv.font = dc.font.xfont->fid;
 71		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
 72		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 73	}
 74	if(highlight) {
 75		r.x = dc.x + 2;
 76		r.y = dc.y + 2;
 77		r.width = r.height = 3;
 78		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 79	}
 80}
 81
 82/* extern */
 83
 84void
 85drawall()
 86{
 87	Client *c;
 88
 89	for(c = clients; c; c = getnext(c->next))
 90		drawtitle(c);
 91	drawstatus();
 92}
 93
 94void
 95drawstatus()
 96{
 97	int i, x;
 98
 99	dc.x = dc.y = 0;
100	dc.w = bw;
101
102	drawtext(NULL, dc.status, False);
103	for(i = 0; i < ntags; i++) {
104		dc.w = textw(tags[i]);
105		if(seltag[i])
106			drawtext(tags[i], dc.sel, sel && sel->tags[i]);
107		else
108			drawtext(tags[i], dc.norm, sel && sel->tags[i]);
109		dc.x += dc.w;
110	}
111
112	dc.w = bmw;
113	drawtext(arrange == dotile ? TILESYMBOL : FLOATSYMBOL, dc.status, False);
114
115	x = dc.x + dc.w;
116	dc.w = textw(stext);
117	dc.x = bx + bw - dc.w;
118	if(dc.x < x) {
119		dc.x = x;
120		dc.w = bw - x;
121	}
122	drawtext(stext, dc.status, False);
123
124	if(sel && ((dc.w = dc.x - x) > bh)) {
125		dc.x = x;
126		drawtext(sel->name, dc.sel, False);
127	}
128	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
129	XSync(dpy, False);
130}
131
132void
133drawtitle(Client *c)
134{
135	int i;
136
137	if(c == sel && issel) {
138		drawstatus();
139		XUnmapWindow(dpy, c->twin);
140		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
141		return;
142	}
143
144	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
145	XMapWindow(dpy, c->twin);
146	dc.x = dc.y = 0;
147	dc.w = c->tw;
148	drawtext(c->name, dc.norm, False);
149	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
150	XSync(dpy, False);
151}
152
153unsigned long
154getcolor(const char *colstr)
155{
156	Colormap cmap = DefaultColormap(dpy, screen);
157	XColor color;
158
159	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
160	return color.pixel;
161}
162
163void
164setfont(const char *fontstr)
165{
166	char **missing, *def;
167	int i, n;
168
169	missing = NULL;
170	setlocale(LC_ALL, "");
171	if(dc.font.set)
172		XFreeFontSet(dpy, dc.font.set);
173	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
174	if(missing) {
175		while(n--)
176			fprintf(stderr, "missing fontset: %s\n", missing[n]);
177		XFreeStringList(missing);
178		if(dc.font.set) {
179			XFreeFontSet(dpy, dc.font.set);
180			dc.font.set = NULL;
181		}
182	}
183	if(dc.font.set) {
184		XFontSetExtents *font_extents;
185		XFontStruct **xfonts;
186		char **font_names;
187
188		dc.font.ascent = dc.font.descent = 0;
189		font_extents = XExtentsOfFontSet(dc.font.set);
190		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
191		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
192			if(dc.font.ascent < (*xfonts)->ascent)
193				dc.font.ascent = (*xfonts)->ascent;
194			if(dc.font.descent < (*xfonts)->descent)
195				dc.font.descent = (*xfonts)->descent;
196			xfonts++;
197		}
198	}
199	else {
200		if(dc.font.xfont)
201			XFreeFont(dpy, dc.font.xfont);
202		dc.font.xfont = NULL;
203		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
204		if (!dc.font.xfont)
205			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
206		if (!dc.font.xfont)
207			eprint("error, cannot init 'fixed' font\n");
208		dc.font.ascent = dc.font.xfont->ascent;
209		dc.font.descent = dc.font.xfont->descent;
210	}
211	dc.font.height = dc.font.ascent + dc.font.descent;
212}
213
214unsigned int
215textw(const char *text)
216{
217	return textnw(text, strlen(text)) + dc.font.height;
218}