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