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