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
  7#include <stdio.h>
  8#include <string.h>
  9#include <X11/Xlocale.h>
 10
 11/* static */
 12
 13static void
 14drawborder(void)
 15{
 16	XPoint points[5];
 17
 18	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 19	XSetForeground(dpy, dc.gc, dc.border);
 20	points[0].x = dc.x;
 21	points[0].y = dc.y;
 22	points[1].x = dc.w - 1;
 23	points[1].y = 0;
 24	points[2].x = 0;
 25	points[2].y = dc.h - 1;
 26	points[3].x = -(dc.w - 1);
 27	points[3].y = 0;
 28	points[4].x = 0;
 29	points[4].y = -(dc.h - 1);
 30	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
 31}
 32
 33static unsigned int
 34textnw(char *text, unsigned int len)
 35{
 36	XRectangle r;
 37
 38	if(dc.font.set) {
 39		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 40		return r.width;
 41	}
 42	return XTextWidth(dc.font.xfont, text, len);
 43}
 44
 45static void
 46drawtext(const char *text, Bool invert, Bool border)
 47{
 48	int x, y, w, h;
 49	static char buf[256];
 50	unsigned int len;
 51	XGCValues gcv;
 52	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 53
 54	XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
 55	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 56
 57	w = 0;
 58	if(border)
 59		drawborder();
 60
 61	if(!text)
 62		return;
 63
 64	len = strlen(text);
 65	if(len >= sizeof(buf))
 66		len = sizeof(buf) - 1;
 67	memcpy(buf, text, len);
 68	buf[len] = 0;
 69
 70	h = dc.font.ascent + dc.font.descent;
 71	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 72	x = dc.x + (h / 2);
 73
 74	/* shorten text if necessary */
 75	while(len && (w = textnw(buf, len)) > dc.w - h)
 76		buf[--len] = 0;
 77
 78	if(w > dc.w)
 79		return; /* too long */
 80
 81	gcv.foreground = invert ? dc.bg : dc.fg;
 82	gcv.background = invert ? dc.fg : dc.bg;
 83	if(dc.font.set) {
 84		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
 85		XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc,
 86				x, y, buf, len);
 87	}
 88	else {
 89		gcv.font = dc.font.xfont->fid;
 90		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
 91		XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 92	}
 93}
 94
 95/* extern */
 96
 97void
 98drawall()
 99{
100	Client *c;
101
102	for(c = clients; c; c = getnext(c->next, tsel))
103		drawtitle(c);
104	drawstatus();
105}
106
107void
108drawstatus()
109{
110	int i, x;
111	Bool istile = arrange == dotile;
112
113	dc.x = dc.y = 0;
114	dc.w = bw;
115	drawtext(NULL, !istile, False);
116
117	dc.w = 0;
118	for(i = 0; i < TLast; i++) {
119		dc.x += dc.w;
120		dc.w = textw(tags[i]);
121		if(istile)
122			drawtext(tags[i], (i == tsel), True);
123		else
124			drawtext(tags[i], (i != tsel), True);
125	}
126	x = dc.x + dc.w;
127	dc.w = textw(stext);
128	dc.x = bx + bw - dc.w;
129	drawtext(stext, !istile, False);
130	if(sel && ((dc.w = dc.x - x) >= bh)) {
131		dc.x = x;
132		drawtext(sel->name, istile, True);
133	}
134	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
135	XSync(dpy, False);
136}
137
138void
139drawtitle(Client *c)
140{
141	int i;
142	Bool istile = arrange == dotile;
143
144	if(c == sel) {
145		drawstatus();
146		XUnmapWindow(dpy, c->title);
147		XSetWindowBorder(dpy, c->win, dc.fg);
148		return;
149	}
150
151	XSetWindowBorder(dpy, c->win, dc.bg);
152	XMapWindow(dpy, c->title);
153
154	dc.x = dc.y = 0;
155
156	dc.w = 0;
157	for(i = 0; i < TLast; i++) {
158		if(c->tags[i]) {
159			dc.x += dc.w;
160			dc.w = textw(c->tags[i]);
161			drawtext(c->tags[i], !istile, True);
162		}
163	}
164	dc.x += dc.w;
165	dc.w = textw(c->name);
166	drawtext(c->name, !istile, True);
167	XCopyArea(dpy, dc.drawable, c->title, dc.gc, 0, 0, c->tw, c->th, 0, 0);
168	XSync(dpy, False);
169}
170
171unsigned long
172getcolor(const char *colstr)
173{
174	Colormap cmap = DefaultColormap(dpy, screen);
175	XColor color;
176
177	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
178	return color.pixel;
179}
180
181void
182setfont(const char *fontstr)
183{
184	char **missing, *def;
185	int i, n;
186
187	missing = NULL;
188	setlocale(LC_ALL, "");
189	if(dc.font.set)
190		XFreeFontSet(dpy, dc.font.set);
191	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
192	if(missing) {
193		while(n--)
194			fprintf(stderr, "missing fontset: %s\n", missing[n]);
195		XFreeStringList(missing);
196		if(dc.font.set) {
197			XFreeFontSet(dpy, dc.font.set);
198			dc.font.set = NULL;
199		}
200	}
201	if(dc.font.set) {
202		XFontSetExtents *font_extents;
203		XFontStruct **xfonts;
204		char **font_names;
205
206		dc.font.ascent = dc.font.descent = 0;
207		font_extents = XExtentsOfFontSet(dc.font.set);
208		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
209		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
210			if(dc.font.ascent < (*xfonts)->ascent)
211				dc.font.ascent = (*xfonts)->ascent;
212			if(dc.font.descent < (*xfonts)->descent)
213				dc.font.descent = (*xfonts)->descent;
214			xfonts++;
215		}
216	}
217	else {
218		if(dc.font.xfont)
219			XFreeFont(dpy, dc.font.xfont);
220		dc.font.xfont = NULL;
221		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
222		if (!dc.font.xfont)
223			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
224		if (!dc.font.xfont)
225			eprint("error, cannot init 'fixed' font\n");
226		dc.font.ascent = dc.font.xfont->ascent;
227		dc.font.descent = dc.font.xfont->descent;
228	}
229	dc.font.height = dc.font.ascent + dc.font.descent;
230}
231
232unsigned int
233textw(char *text)
234{
235	return textnw(text, strlen(text)) + dc.font.height;
236}