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