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	static const char *mode[] = { "~", "=" };
 98	int i, x;
 99
100	dc.x = dc.y = 0;
101	dc.w = bw;
102
103	if(!modew)
104		modew = textw(mode[0]) > textw(mode[1]) ? textw(mode[0]) : textw(mode[1]);
105	drawtext(mode[arrange == dotile ? 1 : 0], dc.status, False);
106
107	dc.w = 0;
108	dc.x = modew;
109	for(i = 0; i < ntags; i++) {
110		dc.x += dc.w;
111		dc.w = textw(tags[i]);
112		if(seltag[i])
113			drawtext(tags[i], dc.sel, sel && sel->tags[i]);
114		else
115			drawtext(tags[i], dc.norm, sel && sel->tags[i]);
116	}
117	x = dc.x + dc.w;
118	dc.w = textw(stext);
119	dc.x = bx + bw - dc.w;
120	if(dc.x < x) {
121		dc.x = x;
122		dc.w = bw - x;
123	}
124	drawtext(stext, dc.status, False);
125
126	if(sel && ((dc.w = dc.x - x) > bh)) {
127		dc.x = x;
128		drawtext(sel->name, dc.sel, False);
129	}
130	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
131	XSync(dpy, False);
132}
133
134void
135drawtitle(Client *c)
136{
137	int i;
138
139	if(c == sel && issel) {
140		drawstatus();
141		XUnmapWindow(dpy, c->twin);
142		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
143		return;
144	}
145
146	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
147	XMapWindow(dpy, c->twin);
148	dc.x = dc.y = 0;
149	dc.w = c->tw;
150	drawtext(c->name, dc.norm, False);
151	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
152	XSync(dpy, False);
153}
154
155unsigned long
156getcolor(const char *colstr)
157{
158	Colormap cmap = DefaultColormap(dpy, screen);
159	XColor color;
160
161	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
162	return color.pixel;
163}
164
165void
166setfont(const char *fontstr)
167{
168	char **missing, *def;
169	int i, n;
170
171	missing = NULL;
172	setlocale(LC_ALL, "");
173	if(dc.font.set)
174		XFreeFontSet(dpy, dc.font.set);
175	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
176	if(missing) {
177		while(n--)
178			fprintf(stderr, "missing fontset: %s\n", missing[n]);
179		XFreeStringList(missing);
180		if(dc.font.set) {
181			XFreeFontSet(dpy, dc.font.set);
182			dc.font.set = NULL;
183		}
184	}
185	if(dc.font.set) {
186		XFontSetExtents *font_extents;
187		XFontStruct **xfonts;
188		char **font_names;
189
190		dc.font.ascent = dc.font.descent = 0;
191		font_extents = XExtentsOfFontSet(dc.font.set);
192		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
193		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
194			if(dc.font.ascent < (*xfonts)->ascent)
195				dc.font.ascent = (*xfonts)->ascent;
196			if(dc.font.descent < (*xfonts)->descent)
197				dc.font.descent = (*xfonts)->descent;
198			xfonts++;
199		}
200	}
201	else {
202		if(dc.font.xfont)
203			XFreeFont(dpy, dc.font.xfont);
204		dc.font.xfont = NULL;
205		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
206		if (!dc.font.xfont)
207			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
208		if (!dc.font.xfont)
209			eprint("error, cannot init 'fixed' font\n");
210		dc.font.ascent = dc.font.xfont->ascent;
211		dc.font.descent = dc.font.xfont->descent;
212	}
213	dc.font.height = dc.font.ascent + dc.font.descent;
214}
215
216unsigned int
217textw(const char *text)
218{
219	return textnw(text, strlen(text)) + dc.font.height;
220}