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