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 = 3;
 76		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 77	}
 78}
 79
 80/* extern */
 81
 82void
 83drawall() {
 84	Client *c;
 85
 86	for(c = clients; c; c = getnext(c->next))
 87		drawtitle(c);
 88	drawstatus();
 89}
 90
 91void
 92drawstatus() {
 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 == dotile ? TILESYMBOL : FLOATSYMBOL, dc.status, False);
108
109	x = dc.x + dc.w;
110	dc.w = textw(stext);
111	dc.x = bx + bw - dc.w;
112	if(dc.x < x) {
113		dc.x = x;
114		dc.w = bw - x;
115	}
116	drawtext(stext, dc.status, False);
117
118	if((dc.w = dc.x - x) > bh) {
119		dc.x = x;
120		if(sel)
121			drawtext(sel->name, dc.sel, False);
122		else
123			drawtext(NULL, dc.norm, False);
124	}
125	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
126	XSync(dpy, False);
127}
128
129void
130drawtitle(Client *c) {
131	if(c == sel && issel) {
132		drawstatus();
133		XUnmapWindow(dpy, c->twin);
134		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
135		return;
136	}
137
138	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
139	XMapWindow(dpy, c->twin);
140	dc.x = dc.y = 0;
141	dc.w = c->tw;
142	drawtext(c->name, dc.norm, False);
143	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
144	XSync(dpy, False);
145}
146
147unsigned long
148getcolor(const char *colstr) {
149	Colormap cmap = DefaultColormap(dpy, screen);
150	XColor color;
151
152	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
153	return color.pixel;
154}
155
156void
157setfont(const char *fontstr) {
158	char **missing, *def;
159	int i, n;
160
161	missing = NULL;
162	setlocale(LC_ALL, "");
163	if(dc.font.set)
164		XFreeFontSet(dpy, dc.font.set);
165	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
166	if(missing) {
167		while(n--)
168			fprintf(stderr, "missing fontset: %s\n", missing[n]);
169		XFreeStringList(missing);
170		if(dc.font.set) {
171			XFreeFontSet(dpy, dc.font.set);
172			dc.font.set = NULL;
173		}
174	}
175	if(dc.font.set) {
176		XFontSetExtents *font_extents;
177		XFontStruct **xfonts;
178		char **font_names;
179
180		dc.font.ascent = dc.font.descent = 0;
181		font_extents = XExtentsOfFontSet(dc.font.set);
182		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
183		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
184			if(dc.font.ascent < (*xfonts)->ascent)
185				dc.font.ascent = (*xfonts)->ascent;
186			if(dc.font.descent < (*xfonts)->descent)
187				dc.font.descent = (*xfonts)->descent;
188			xfonts++;
189		}
190	}
191	else {
192		if(dc.font.xfont)
193			XFreeFont(dpy, dc.font.xfont);
194		dc.font.xfont = NULL;
195		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
196		if (!dc.font.xfont)
197			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
198		if (!dc.font.xfont)
199			eprint("error, cannot init 'fixed' font\n");
200		dc.font.ascent = dc.font.xfont->ascent;
201		dc.font.descent = dc.font.xfont->descent;
202	}
203	dc.font.height = dc.font.ascent + dc.font.descent;
204}
205
206unsigned int
207textw(const char *text) {
208	return textnw(text, strlen(text)) + dc.font.height;
209}