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