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 void
 13drawborder(void)
 14{
 15	XPoint points[5];
 16
 17	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 18	XSetForeground(dpy, dc.gc, dc.border);
 19	points[0].x = dc.x;
 20	points[0].y = dc.y;
 21	points[1].x = dc.w - 1;
 22	points[1].y = 0;
 23	points[2].x = 0;
 24	points[2].y = dc.h - 1;
 25	points[3].x = -(dc.w - 1);
 26	points[3].y = 0;
 27	points[4].x = 0;
 28	points[4].y = -(dc.h - 1);
 29	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
 30}
 31
 32static unsigned int
 33textnw(const char *text, unsigned int len)
 34{
 35	XRectangle r;
 36
 37	if(dc.font.set) {
 38		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 39		return r.width;
 40	}
 41	return XTextWidth(dc.font.xfont, text, len);
 42}
 43
 44static void
 45drawtext(const char *text, Bool invert, Bool border)
 46{
 47	int x, y, w, h;
 48	static char buf[256];
 49	unsigned int len;
 50	XGCValues gcv;
 51	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 52
 53	XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
 54	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 55
 56	w = 0;
 57	if(border)
 58		drawborder();
 59
 60	if(!text)
 61		return;
 62
 63	len = strlen(text);
 64	if(len >= sizeof(buf))
 65		len = sizeof(buf) - 1;
 66	memcpy(buf, text, len);
 67	buf[len] = 0;
 68
 69	h = dc.font.ascent + dc.font.descent;
 70	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 71	x = dc.x + (h / 2);
 72
 73	/* shorten text if necessary */
 74	while(len && (w = textnw(buf, len)) > dc.w - h)
 75		buf[--len] = 0;
 76
 77	if(w > dc.w)
 78		return; /* too long */
 79
 80	gcv.foreground = invert ? dc.bg : dc.fg;
 81	gcv.background = invert ? dc.fg : dc.bg;
 82	if(dc.font.set) {
 83		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
 84		XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc,
 85				x, y, buf, len);
 86	}
 87	else {
 88		gcv.font = dc.font.xfont->fid;
 89		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
 90		XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 91	}
 92}
 93
 94/* extern */
 95
 96void
 97drawall()
 98{
 99	Client *c;
100
101	for(c = clients; c; c = getnext(c->next))
102		drawtitle(c);
103	drawstatus();
104}
105
106void
107drawstatus()
108{
109	int i, x;
110	Bool istile = arrange == dotile;
111
112	dc.x = dc.y = 0;
113	dc.w = bw;
114	drawtext(NULL, !istile, False);
115
116	dc.w = 0;
117	for(i = 0; i < ntags; i++) {
118		dc.x += dc.w;
119		dc.w = textw(tags[i]);
120		if(istile)
121			drawtext(tags[i], (i == tsel), True);
122		else
123			drawtext(tags[i], (i != tsel), True);
124	}
125	x = dc.x + dc.w;
126	dc.w = textw(stext);
127	dc.x = bx + bw - dc.w;
128	drawtext(stext, !istile, True);
129	if(sel && ((dc.w = dc.x - x) >= bh)) {
130		dc.x = x;
131		drawtext(sel->name, istile, True);
132	}
133	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
134	XSync(dpy, False);
135}
136
137void
138drawtitle(Client *c)
139{
140	int i;
141	Bool istile = arrange == dotile;
142
143	if(c == sel) {
144		drawstatus();
145		XUnmapWindow(dpy, c->title);
146		XSetWindowBorder(dpy, c->win, dc.fg);
147		return;
148	}
149
150	XSetWindowBorder(dpy, c->win, dc.bg);
151	XMapWindow(dpy, c->title);
152
153	dc.x = dc.y = 0;
154
155	dc.w = 0;
156	for(i = 0; i < ntags; i++) {
157		if(c->tags[i]) {
158			dc.x += dc.w;
159			dc.w = textw(tags[i]);
160			drawtext(tags[i], !istile, True);
161		}
162	}
163	dc.x += dc.w;
164	dc.w = textw(c->name);
165	drawtext(c->name, !istile, True);
166	XCopyArea(dpy, dc.drawable, c->title, dc.gc, 0, 0, c->tw, c->th, 0, 0);
167	XSync(dpy, False);
168}
169
170unsigned long
171getcolor(const char *colstr)
172{
173	Colormap cmap = DefaultColormap(dpy, screen);
174	XColor color;
175
176	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
177	return color.pixel;
178}
179
180void
181setfont(const char *fontstr)
182{
183	char **missing, *def;
184	int i, n;
185
186	missing = NULL;
187	setlocale(LC_ALL, "");
188	if(dc.font.set)
189		XFreeFontSet(dpy, dc.font.set);
190	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
191	if(missing) {
192		while(n--)
193			fprintf(stderr, "missing fontset: %s\n", missing[n]);
194		XFreeStringList(missing);
195		if(dc.font.set) {
196			XFreeFontSet(dpy, dc.font.set);
197			dc.font.set = NULL;
198		}
199	}
200	if(dc.font.set) {
201		XFontSetExtents *font_extents;
202		XFontStruct **xfonts;
203		char **font_names;
204
205		dc.font.ascent = dc.font.descent = 0;
206		font_extents = XExtentsOfFontSet(dc.font.set);
207		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
208		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
209			if(dc.font.ascent < (*xfonts)->ascent)
210				dc.font.ascent = (*xfonts)->ascent;
211			if(dc.font.descent < (*xfonts)->descent)
212				dc.font.descent = (*xfonts)->descent;
213			xfonts++;
214		}
215	}
216	else {
217		if(dc.font.xfont)
218			XFreeFont(dpy, dc.font.xfont);
219		dc.font.xfont = NULL;
220		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
221		if (!dc.font.xfont)
222			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
223		if (!dc.font.xfont)
224			eprint("error, cannot init 'fixed' font\n");
225		dc.font.ascent = dc.font.xfont->ascent;
226		dc.font.descent = dc.font.xfont->descent;
227	}
228	dc.font.height = dc.font.ascent + dc.font.descent;
229}
230
231unsigned int
232textw(const char *text)
233{
234	return textnw(text, strlen(text)) + dc.font.height;
235}