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
 25drawborder()
 26{
 27	XPoint points[5];
 28	points[0].x = dc.x;
 29	points[0].y = dc.y;
 30	points[1].x = dc.w - 1;
 31	points[1].y = 0;
 32	points[2].x = 0;
 33	points[2].y = dc.h - 1;
 34	points[3].x = -(dc.w - 1);
 35	points[3].y = 0;
 36	points[4].x = 0;
 37	points[4].y = -(dc.h - 1);
 38	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
 39}
 40
 41static void
 42drawtext(const char *text, Bool invert, Bool highlight)
 43{
 44	int x, y, w, h;
 45	static char buf[256];
 46	unsigned int len, olen;
 47	DC tmp;
 48	XGCValues gcv;
 49	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 50
 51	XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
 52	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 53	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 54	XSetForeground(dpy, dc.gc, dc.border);
 55	drawborder();
 56
 57	if(!text)
 58		return;
 59
 60	w = 0;
 61	olen = len = strlen(text);
 62	if(len >= sizeof(buf))
 63		len = sizeof(buf) - 1;
 64	memcpy(buf, text, len);
 65	buf[len] = 0;
 66
 67	h = dc.font.ascent + dc.font.descent;
 68	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 69	x = dc.x + (h / 2);
 70
 71	/* shorten text if necessary */
 72	while(len && (w = textnw(buf, len)) > dc.w - h)
 73		buf[--len] = 0;
 74	if(len < olen) {
 75		if(len > 1)
 76			buf[len - 1] = '.';
 77		if(len > 2)
 78			buf[len - 2] = '.';
 79		if(len > 3)
 80			buf[len - 3] = '.';
 81	}
 82
 83	if(w > dc.w)
 84		return; /* too long */
 85	gcv.foreground = invert ? dc.bg : dc.fg;
 86	gcv.background = invert ? dc.fg : dc.bg;
 87	if(dc.font.set) {
 88		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
 89		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 90	}
 91	else {
 92		gcv.font = dc.font.xfont->fid;
 93		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
 94		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 95	}
 96	if(highlight) {
 97		tmp = dc;
 98		dc.x += 2;
 99		dc.y += 2;
100		dc.w -= 4;
101		dc.h -= 4;
102		drawborder();
103		dc = tmp;
104	}
105}
106
107/* extern */
108
109void
110drawall()
111{
112	Client *c;
113
114	for(c = clients; c; c = getnext(c->next))
115		drawtitle(c);
116	drawstatus();
117}
118
119void
120drawstatus()
121{
122	int i, x;
123	Bool istile = arrange == dotile;
124
125	dc.x = dc.y = 0;
126	dc.w = bw;
127	drawtext(NULL, !istile, False);
128
129	dc.w = 0;
130	for(i = 0; i < ntags; i++) {
131		dc.x += dc.w;
132		dc.w = textw(tags[i]);
133		if(istile)
134			drawtext(tags[i], seltag[i], sel && sel->tags[i]);
135		else
136			drawtext(tags[i], !seltag[i], sel && sel->tags[i]);
137	}
138	x = dc.x + dc.w;
139	dc.w = textw(stext);
140	dc.x = bx + bw - dc.w;
141	if(dc.x < x) {
142		dc.x = x;
143		dc.w = bw - x;
144	}
145	drawtext(stext, !istile, False);
146
147	if(sel && ((dc.w = dc.x - x) > bh)) {
148		dc.x = x;
149		drawtext(sel->name, istile, False);
150	}
151	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
152	XSync(dpy, False);
153}
154
155void
156drawtitle(Client *c)
157{
158	int i;
159	Bool istile = arrange == dotile;
160
161	if(c == sel && issel) {
162		drawstatus();
163		XUnmapWindow(dpy, c->twin);
164		XSetWindowBorder(dpy, c->win, dc.fg);
165		return;
166	}
167
168	XSetWindowBorder(dpy, c->win, dc.bg);
169	XMapWindow(dpy, c->twin);
170	dc.x = dc.y = 0;
171	dc.w = c->tw;
172	drawtext(c->name, !istile, False);
173	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
174	XSync(dpy, False);
175}
176
177unsigned long
178getcolor(const char *colstr)
179{
180	Colormap cmap = DefaultColormap(dpy, screen);
181	XColor color;
182
183	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
184	return color.pixel;
185}
186
187void
188setfont(const char *fontstr)
189{
190	char **missing, *def;
191	int i, n;
192
193	missing = NULL;
194	setlocale(LC_ALL, "");
195	if(dc.font.set)
196		XFreeFontSet(dpy, dc.font.set);
197	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
198	if(missing) {
199		while(n--)
200			fprintf(stderr, "missing fontset: %s\n", missing[n]);
201		XFreeStringList(missing);
202		if(dc.font.set) {
203			XFreeFontSet(dpy, dc.font.set);
204			dc.font.set = NULL;
205		}
206	}
207	if(dc.font.set) {
208		XFontSetExtents *font_extents;
209		XFontStruct **xfonts;
210		char **font_names;
211
212		dc.font.ascent = dc.font.descent = 0;
213		font_extents = XExtentsOfFontSet(dc.font.set);
214		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
215		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
216			if(dc.font.ascent < (*xfonts)->ascent)
217				dc.font.ascent = (*xfonts)->ascent;
218			if(dc.font.descent < (*xfonts)->descent)
219				dc.font.descent = (*xfonts)->descent;
220			xfonts++;
221		}
222	}
223	else {
224		if(dc.font.xfont)
225			XFreeFont(dpy, dc.font.xfont);
226		dc.font.xfont = NULL;
227		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
228		if (!dc.font.xfont)
229			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
230		if (!dc.font.xfont)
231			eprint("error, cannot init 'fixed' font\n");
232		dc.font.ascent = dc.font.xfont->ascent;
233		dc.font.descent = dc.font.xfont->descent;
234	}
235	dc.font.height = dc.font.ascent + dc.font.descent;
236}
237
238unsigned int
239textw(const char *text)
240{
241	return textnw(text, strlen(text)) + dc.font.height;
242}