1/* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  2 * See LICENSE file for license details.
  3 */
  4#include "dwm.h"
  5#include <stdio.h>
  6#include <string.h>
  7#include <X11/Xlocale.h>
  8
  9/* static */
 10
 11static Bool
 12isoccupied(unsigned int t)
 13{
 14	Client *c;
 15	for(c = clients; c; c = c->next)
 16		if(c->tags[t])
 17			return True;
 18	return False;
 19}
 20
 21static unsigned int
 22textnw(const char *text, unsigned int len) {
 23	XRectangle r;
 24
 25	if(dc.font.set) {
 26		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 27		return r.width;
 28	}
 29	return XTextWidth(dc.font.xfont, text, len);
 30}
 31
 32static void
 33drawtext(const char *text, unsigned long col[ColLast], Bool dot, Bool border) {
 34	int x, y, w, h;
 35	static char buf[256];
 36	unsigned int len, olen;
 37	XGCValues gcv;
 38	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 39	XPoint pt[3];
 40
 41	XSetForeground(dpy, dc.gc, col[ColBG]);
 42	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 43	if(!text)
 44		return;
 45	w = 0;
 46	olen = len = strlen(text);
 47	if(len >= sizeof buf)
 48		len = sizeof buf - 1;
 49	memcpy(buf, text, len);
 50	buf[len] = 0;
 51	h = dc.font.ascent + dc.font.descent;
 52	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 53	x = dc.x + (h / 2);
 54	/* shorten text if necessary */
 55	while(len && (w = textnw(buf, len)) > dc.w - h)
 56		buf[--len] = 0;
 57	if(len < olen) {
 58		if(len > 1)
 59			buf[len - 1] = '.';
 60		if(len > 2)
 61			buf[len - 2] = '.';
 62		if(len > 3)
 63			buf[len - 3] = '.';
 64	}
 65	if(w > dc.w)
 66		return; /* too long */
 67	gcv.foreground = col[ColFG];
 68	if(dc.font.set) {
 69		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
 70		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 71	}
 72	else {
 73		gcv.font = dc.font.xfont->fid;
 74		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
 75		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 76	}
 77	if(dot) {
 78		r.width = r.height = (h + 2) / 4;
 79		r.x = dc.x + dc.w - r.width - 2;
 80		r.y = dc.y + dc.h - r.height - 2;
 81		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 82	}
 83	if(border) {
 84		pt[0].x = dc.x;
 85		pt[0].y = dc.y + dc.h - 1;
 86		pt[1].x = 0;
 87		pt[1].y = -(dc.h - 1);
 88		pt[2].x = dc.w - 1;
 89		pt[2].y = 0;
 90		XDrawLines(dpy, dc.drawable, dc.gc, pt, 3, CoordModePrevious);
 91	}
 92}
 93
 94/* extern */
 95
 96void
 97drawall(void) {
 98	Client *c;
 99
100	for(c = clients; c; c = getnext(c->next))
101		drawtitle(c);
102	drawstatus();
103}
104
105void
106drawstatus(void) {
107	int i, x;
108
109	dc.x = dc.y = 0;
110	for(i = 0; i < ntags; i++) {
111		dc.w = textw(tags[i]);
112		if(seltag[i])
113			drawtext(tags[i], dc.sel, sel && sel->tags[i], isoccupied(i));
114		else
115			drawtext(tags[i], dc.norm, sel && sel->tags[i], isoccupied(i));
116		dc.x += dc.w;
117	}
118	dc.w = bmw;
119	drawtext(arrange == dofloat ?  FLOATSYMBOL : TILESYMBOL, dc.status, False, False);
120	x = dc.x + dc.w;
121	dc.w = textw(stext);
122	dc.x = bw - dc.w;
123	if(dc.x < x) {
124		dc.x = x;
125		dc.w = bw - x;
126	}
127	drawtext(stext, dc.status, False, False);
128	if((dc.w = dc.x - x) > bh) {
129		dc.x = x;
130		drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False, False);
131	}
132	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
133	XSync(dpy, False);
134}
135
136void
137drawtitle(Client *c) {
138	if(c == sel && issel) {
139		drawstatus();
140		XUnmapWindow(dpy, c->twin);
141		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
142		return;
143	}
144	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
145	XMapWindow(dpy, c->twin);
146	dc.x = dc.y = 0;
147	dc.w = c->tw;
148	drawtext(c->name, dc.norm, False,False);
149	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
150	XSync(dpy, False);
151}
152
153unsigned long
154getcolor(const char *colstr) {
155	Colormap cmap = DefaultColormap(dpy, screen);
156	XColor color;
157
158	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
159		eprint("error, cannot allocate color '%s'\n", colstr);
160	return color.pixel;
161}
162
163void
164setfont(const char *fontstr) {
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		dc.font.ascent = dc.font.descent = 0;
187		font_extents = XExtentsOfFontSet(dc.font.set);
188		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
189		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
190			if(dc.font.ascent < (*xfonts)->ascent)
191				dc.font.ascent = (*xfonts)->ascent;
192			if(dc.font.descent < (*xfonts)->descent)
193				dc.font.descent = (*xfonts)->descent;
194			xfonts++;
195		}
196	}
197	else {
198		if(dc.font.xfont)
199			XFreeFont(dpy, dc.font.xfont);
200		dc.font.xfont = NULL;
201		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
202		if (!dc.font.xfont)
203			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
204		if (!dc.font.xfont)
205			eprint("error, cannot init 'fixed' font\n");
206		dc.font.ascent = dc.font.xfont->ascent;
207		dc.font.descent = dc.font.xfont->descent;
208	}
209	dc.font.height = dc.font.ascent + dc.font.descent;
210}
211
212unsigned int
213textw(const char *text) {
214	return textnw(text, strlen(text)) + dc.font.height;
215}