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, unsigned long col[ColLast], Bool highlight)
 26{
 27	int x, y, w, h;
 28	static char buf[256];
 29	unsigned int len, olen;
 30	XGCValues gcv;
 31	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 32
 33	XSetForeground(dpy, dc.gc, col[ColBG]);
 34	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 35
 36	if(!text)
 37		return;
 38
 39	w = 0;
 40	olen = len = strlen(text);
 41	if(len >= sizeof(buf))
 42		len = sizeof(buf) - 1;
 43	memcpy(buf, text, len);
 44	buf[len] = 0;
 45
 46	h = dc.font.ascent + dc.font.descent;
 47	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 48	x = dc.x + (h / 2);
 49
 50	/* shorten text if necessary */
 51	while(len && (w = textnw(buf, len)) > dc.w - h)
 52		buf[--len] = 0;
 53	if(len < olen) {
 54		if(len > 1)
 55			buf[len - 1] = '.';
 56		if(len > 2)
 57			buf[len - 2] = '.';
 58		if(len > 3)
 59			buf[len - 3] = '.';
 60	}
 61
 62	if(w > dc.w)
 63		return; /* too long */
 64	gcv.foreground = col[ColFG];
 65	if(dc.font.set) {
 66		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
 67		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 68	}
 69	else {
 70		gcv.font = dc.font.xfont->fid;
 71		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
 72		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 73	}
 74	if(highlight) {
 75		r.x = dc.x + 2;
 76		r.y = dc.y + 2;
 77		r.width = r.height = 3;
 78		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 79	}
 80}
 81
 82/* extern */
 83
 84void
 85drawall()
 86{
 87	Client *c;
 88
 89	for(c = clients; c; c = getnext(c->next))
 90		drawtitle(c);
 91	drawstatus();
 92}
 93
 94void
 95drawstatus()
 96{
 97	int i, x;
 98
 99	dc.x = dc.y = 0;
100
101	for(i = 0; i < ntags; i++) {
102		dc.w = textw(tags[i]);
103		if(seltag[i])
104			drawtext(tags[i], dc.sel, sel && sel->tags[i]);
105		else
106			drawtext(tags[i], dc.norm, sel && sel->tags[i]);
107		dc.x += dc.w;
108	}
109
110	dc.w = bmw;
111	drawtext(arrange == dotile ? TILESYMBOL : FLOATSYMBOL, dc.status, False);
112
113	x = dc.x + dc.w;
114	dc.w = textw(stext);
115	dc.x = bx + bw - dc.w;
116	if(dc.x < x) {
117		dc.x = x;
118		dc.w = bw - x;
119	}
120	drawtext(stext, dc.status, False);
121
122	if((dc.w = dc.x - x) > bh) {
123		dc.x = x;
124		if(sel)
125			drawtext(sel->name, dc.sel, False);
126		else
127			drawtext(NULL, dc.norm, False);
128	}
129	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
130	XSync(dpy, False);
131}
132
133void
134drawtitle(Client *c)
135{
136	if(c == sel && issel) {
137		drawstatus();
138		XUnmapWindow(dpy, c->twin);
139		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
140		return;
141	}
142
143	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
144	XMapWindow(dpy, c->twin);
145	dc.x = dc.y = 0;
146	dc.w = c->tw;
147	drawtext(c->name, dc.norm, False);
148	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
149	XSync(dpy, False);
150}
151
152unsigned long
153getcolor(const char *colstr)
154{
155	Colormap cmap = DefaultColormap(dpy, screen);
156	XColor color;
157
158	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
159	return color.pixel;
160}
161
162void
163setfont(const char *fontstr)
164{
165	char **missing, *def;
166	int i, n;
167
168	missing = NULL;
169	setlocale(LC_ALL, "");
170	if(dc.font.set)
171		XFreeFontSet(dpy, dc.font.set);
172	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
173	if(missing) {
174		while(n--)
175			fprintf(stderr, "missing fontset: %s\n", missing[n]);
176		XFreeStringList(missing);
177		if(dc.font.set) {
178			XFreeFontSet(dpy, dc.font.set);
179			dc.font.set = NULL;
180		}
181	}
182	if(dc.font.set) {
183		XFontSetExtents *font_extents;
184		XFontStruct **xfonts;
185		char **font_names;
186
187		dc.font.ascent = dc.font.descent = 0;
188		font_extents = XExtentsOfFontSet(dc.font.set);
189		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
190		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
191			if(dc.font.ascent < (*xfonts)->ascent)
192				dc.font.ascent = (*xfonts)->ascent;
193			if(dc.font.descent < (*xfonts)->descent)
194				dc.font.descent = (*xfonts)->descent;
195			xfonts++;
196		}
197	}
198	else {
199		if(dc.font.xfont)
200			XFreeFont(dpy, dc.font.xfont);
201		dc.font.xfont = NULL;
202		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
203		if (!dc.font.xfont)
204			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
205		if (!dc.font.xfont)
206			eprint("error, cannot init 'fixed' font\n");
207		dc.font.ascent = dc.font.xfont->ascent;
208		dc.font.descent = dc.font.xfont->descent;
209	}
210	dc.font.height = dc.font.ascent + dc.font.descent;
211}
212
213unsigned int
214textw(const char *text)
215{
216	return textnw(text, strlen(text)) + dc.font.height;
217}