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, olen;
 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	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 37	XSetForeground(dpy, dc.gc, dc.border);
 38	points[0].x = dc.x;
 39	points[0].y = dc.y;
 40	points[1].x = dc.w - 1;
 41	points[1].y = 0;
 42	points[2].x = 0;
 43	points[2].y = dc.h - 1;
 44	points[3].x = -(dc.w - 1);
 45	points[3].y = 0;
 46	points[4].x = 0;
 47	points[4].y = -(dc.h - 1);
 48	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
 49
 50	if(!text)
 51		return;
 52
 53	w = 0;
 54	olen = len = strlen(text);
 55	if(len >= sizeof(buf))
 56		len = sizeof(buf) - 1;
 57	memcpy(buf, text, len);
 58	buf[len] = 0;
 59
 60	h = dc.font.ascent + dc.font.descent;
 61	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 62	x = dc.x + (h / 2);
 63
 64	/* shorten text if necessary */
 65	while(len && (w = textnw(buf, len)) > dc.w - h)
 66		buf[--len] = 0;
 67	if(len < olen) {
 68		if(len > 1)
 69			buf[len - 1] = '.';
 70		if(len > 2)
 71			buf[len - 2] = '.';
 72		if(len > 3)
 73			buf[len - 3] = '.';
 74	}
 75
 76	if(w > dc.w)
 77		return; /* too long */
 78
 79	gcv.foreground = invert ? dc.bg : dc.fg;
 80	gcv.background = invert ? dc.fg : dc.bg;
 81	if(dc.font.set) {
 82		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
 83		XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc,
 84				x, y, buf, len);
 85	}
 86	else {
 87		gcv.font = dc.font.xfont->fid;
 88		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
 89		XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 90	}
 91}
 92
 93/* extern */
 94
 95void
 96drawall()
 97{
 98	Client *c;
 99
100	for(c = clients; c; c = getnext(c->next))
101		drawtitle(c);
102	drawstatus();
103}
104
105void
106drawstatus()
107{
108	int i, x;
109	Bool istile = arrange == dotile;
110
111	dc.x = dc.y = 0;
112	dc.w = bw;
113	drawtext(NULL, !istile);
114
115	dc.w = 0;
116	for(i = 0; i < ntags; i++) {
117		dc.x += dc.w;
118		dc.w = textw(tags[i]);
119		if(istile)
120			drawtext(tags[i], seltag[i]);
121		else
122			drawtext(tags[i], !seltag[i]);
123	}
124	x = dc.x + dc.w;
125	dc.w = textw(stext);
126	dc.x = bx + bw - dc.w;
127	drawtext(stext, !istile);
128
129	if(sel) {
130		for(i = 0; i < ntags; i++)
131			if(sel->tags[i]) {
132				dc.w = textw(tags[i]);
133				dc.x -= dc.w;
134				if(dc.x < x)
135					break;
136				drawtext(tags[i], istile);
137			}
138		if(dc.x > x && (dc.x - x) > bh) {
139			dc.w = dc.x - x;
140			dc.x = x;
141			drawtext(sel->name, istile);
142		}
143	}
144	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
145	XSync(dpy, False);
146}
147
148void
149drawtitle(Client *c)
150{
151	int i;
152	Bool istile = arrange == dotile;
153
154	if(c == sel && issel) {
155		drawstatus();
156		XUnmapWindow(dpy, c->title);
157		XSetWindowBorder(dpy, c->win, dc.fg);
158		return;
159	}
160
161	XSetWindowBorder(dpy, c->win, dc.bg);
162	XMapWindow(dpy, c->title);
163
164	dc.y = dc.w = 0;
165	dc.x = c->tw;
166	for(i = 0; i < ntags; i++)
167		if(c->tags[i]) {
168			dc.w = textw(tags[i]);
169			dc.x -= dc.w;
170			drawtext(tags[i], !istile);
171		}
172	dc.w = dc.x;
173	dc.x = 0;
174	drawtext(c->name, !istile);
175	XCopyArea(dpy, dc.drawable, c->title, dc.gc, 0, 0, c->tw, c->th, 0, 0);
176	XSync(dpy, False);
177}
178
179unsigned long
180getcolor(const char *colstr)
181{
182	Colormap cmap = DefaultColormap(dpy, screen);
183	XColor color;
184
185	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
186	return color.pixel;
187}
188
189void
190setfont(const char *fontstr)
191{
192	char **missing, *def;
193	int i, n;
194
195	missing = NULL;
196	setlocale(LC_ALL, "");
197	if(dc.font.set)
198		XFreeFontSet(dpy, dc.font.set);
199	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
200	if(missing) {
201		while(n--)
202			fprintf(stderr, "missing fontset: %s\n", missing[n]);
203		XFreeStringList(missing);
204		if(dc.font.set) {
205			XFreeFontSet(dpy, dc.font.set);
206			dc.font.set = NULL;
207		}
208	}
209	if(dc.font.set) {
210		XFontSetExtents *font_extents;
211		XFontStruct **xfonts;
212		char **font_names;
213
214		dc.font.ascent = dc.font.descent = 0;
215		font_extents = XExtentsOfFontSet(dc.font.set);
216		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
217		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
218			if(dc.font.ascent < (*xfonts)->ascent)
219				dc.font.ascent = (*xfonts)->ascent;
220			if(dc.font.descent < (*xfonts)->descent)
221				dc.font.descent = (*xfonts)->descent;
222			xfonts++;
223		}
224	}
225	else {
226		if(dc.font.xfont)
227			XFreeFont(dpy, dc.font.xfont);
228		dc.font.xfont = NULL;
229		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
230		if (!dc.font.xfont)
231			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
232		if (!dc.font.xfont)
233			eprint("error, cannot init 'fixed' font\n");
234		dc.font.ascent = dc.font.xfont->ascent;
235		dc.font.descent = dc.font.xfont->descent;
236	}
237	dc.font.height = dc.font.ascent + dc.font.descent;
238}
239
240unsigned int
241textw(const char *text)
242{
243	return textnw(text, strlen(text)) + dc.font.height;
244}