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 dot, Bool line) {
 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(dot) {
 77		r.x = dc.x + 1;
 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(line)
 83		XDrawLine(dpy, dc.drawable, dc.gc, dc.x + 1, dc.y + 1, dc.x + dc.w - 1, dc.y + 1); }
 84
 85/* extern */
 86
 87void
 88drawall(void) {
 89	Client *c;
 90
 91	for(c = clients; c; c = getnext(c->next))
 92		drawtitle(c);
 93	drawstatus();
 94}
 95
 96void
 97drawstatus(void) {
 98	int i, x;
 99
100	dc.x = dc.y = 0;
101	for(i = 0; i < ntags; i++) {
102		dc.w = textw(tags[i]);
103		if(seltag[i])
104			drawtext(tags[i], dc.sel, sel && sel->tags[i], isoccupied(i));
105		else
106			drawtext(tags[i], dc.norm, sel && sel->tags[i], isoccupied(i));
107		dc.x += dc.w;
108	}
109	dc.w = bmw;
110	drawtext(arrange == dofloat ?  FLOATSYMBOL : TILESYMBOL, dc.status, False, False);
111	x = dc.x + dc.w;
112	dc.w = textw(stext);
113	dc.x = bw - dc.w;
114	if(dc.x < x) {
115		dc.x = x;
116		dc.w = bw - x;
117	}
118	drawtext(stext, dc.status, False, False);
119	if((dc.w = dc.x - x) > bh) {
120		dc.x = x;
121		drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False, False);
122	}
123	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
124	XSync(dpy, False);
125}
126
127void
128drawtitle(Client *c) {
129	if(c == sel && issel) {
130		drawstatus();
131		XUnmapWindow(dpy, c->twin);
132		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
133		return;
134	}
135	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
136	XMapWindow(dpy, c->twin);
137	dc.x = dc.y = 0;
138	dc.w = c->tw;
139	drawtext(c->name, dc.norm, False,False);
140	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
141	XSync(dpy, False);
142}
143
144unsigned long
145getcolor(const char *colstr) {
146	Colormap cmap = DefaultColormap(dpy, screen);
147	XColor color;
148
149	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
150		eprint("error, cannot allocate color '%s'\n", colstr);
151	return color.pixel;
152}
153
154void
155setfont(const char *fontstr) {
156	char **missing, *def;
157	int i, n;
158
159	missing = NULL;
160	setlocale(LC_ALL, "");
161	if(dc.font.set)
162		XFreeFontSet(dpy, dc.font.set);
163	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
164	if(missing) {
165		while(n--)
166			fprintf(stderr, "missing fontset: %s\n", missing[n]);
167		XFreeStringList(missing);
168		if(dc.font.set) {
169			XFreeFontSet(dpy, dc.font.set);
170			dc.font.set = NULL;
171		}
172	}
173	if(dc.font.set) {
174		XFontSetExtents *font_extents;
175		XFontStruct **xfonts;
176		char **font_names;
177		dc.font.ascent = dc.font.descent = 0;
178		font_extents = XExtentsOfFontSet(dc.font.set);
179		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
180		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
181			if(dc.font.ascent < (*xfonts)->ascent)
182				dc.font.ascent = (*xfonts)->ascent;
183			if(dc.font.descent < (*xfonts)->descent)
184				dc.font.descent = (*xfonts)->descent;
185			xfonts++;
186		}
187	}
188	else {
189		if(dc.font.xfont)
190			XFreeFont(dpy, dc.font.xfont);
191		dc.font.xfont = NULL;
192		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
193		if (!dc.font.xfont)
194			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
195		if (!dc.font.xfont)
196			eprint("error, cannot init 'fixed' font\n");
197		dc.font.ascent = dc.font.xfont->ascent;
198		dc.font.descent = dc.font.xfont->descent;
199	}
200	dc.font.height = dc.font.ascent + dc.font.descent;
201}
202
203unsigned int
204textw(const char *text) {
205	return textnw(text, strlen(text)) + dc.font.height;
206}