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 filledsquare, Bool emptysquare) {
 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[5];
 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	x = (h + 2) / 4;
 78	if(filledsquare) {
 79		r.x = dc.x + 1;
 80		r.y = dc.y + 1;
 81		r.width = r.height = x + 1;
 82		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 83	}
 84	else if(emptysquare) {
 85		pt[0].x = dc.x + 1;
 86		pt[0].y = dc.y + 1;
 87		pt[1].x = x;
 88		pt[1].y = 0;
 89		pt[2].x = 0;
 90		pt[2].y = x;
 91		pt[3].x = -x;
 92		pt[3].y = 0;
 93		pt[4].x = 0;
 94		pt[4].y = -x;
 95		XDrawLines(dpy, dc.drawable, dc.gc, pt, 5, CoordModePrevious);
 96	}
 97}
 98
 99/* extern */
100
101void
102drawall(void) {
103	Client *c;
104
105	for(c = clients; c; c = getnext(c->next))
106		drawtitle(c);
107	drawstatus();
108}
109
110void
111drawstatus(void) {
112	int i, x;
113
114	dc.x = dc.y = 0;
115	for(i = 0; i < ntags; i++) {
116		dc.w = textw(tags[i]);
117		if(seltag[i])
118			drawtext(tags[i], dc.sel, sel && sel->tags[i], isoccupied(i));
119		else
120			drawtext(tags[i], dc.norm, sel && sel->tags[i], isoccupied(i));
121		dc.x += dc.w;
122	}
123	dc.w = bmw;
124	drawtext(arrange == dofloat ?  FLOATSYMBOL : TILESYMBOL, dc.status, False, False);
125	x = dc.x + dc.w;
126	dc.w = textw(stext);
127	dc.x = bw - dc.w;
128	if(dc.x < x) {
129		dc.x = x;
130		dc.w = bw - x;
131	}
132	drawtext(stext, dc.status, False, False);
133	if((dc.w = dc.x - x) > bh) {
134		dc.x = x;
135		drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False, False);
136	}
137	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
138	XSync(dpy, False);
139}
140
141void
142drawtitle(Client *c) {
143	if(c == sel && issel) {
144		drawstatus();
145		XUnmapWindow(dpy, c->twin);
146		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
147		return;
148	}
149	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
150	XMapWindow(dpy, c->twin);
151	dc.x = dc.y = 0;
152	dc.w = c->tw;
153	drawtext(c->name, dc.norm, False,False);
154	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
155	XSync(dpy, False);
156}
157
158unsigned long
159getcolor(const char *colstr) {
160	Colormap cmap = DefaultColormap(dpy, screen);
161	XColor color;
162
163	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
164		eprint("error, cannot allocate color '%s'\n", colstr);
165	return color.pixel;
166}
167
168void
169setfont(const char *fontstr) {
170	char **missing, *def;
171	int i, n;
172
173	missing = NULL;
174	setlocale(LC_ALL, "");
175	if(dc.font.set)
176		XFreeFontSet(dpy, dc.font.set);
177	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
178	if(missing) {
179		while(n--)
180			fprintf(stderr, "missing fontset: %s\n", missing[n]);
181		XFreeStringList(missing);
182		if(dc.font.set) {
183			XFreeFontSet(dpy, dc.font.set);
184			dc.font.set = NULL;
185		}
186	}
187	if(dc.font.set) {
188		XFontSetExtents *font_extents;
189		XFontStruct **xfonts;
190		char **font_names;
191		dc.font.ascent = dc.font.descent = 0;
192		font_extents = XExtentsOfFontSet(dc.font.set);
193		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
194		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
195			if(dc.font.ascent < (*xfonts)->ascent)
196				dc.font.ascent = (*xfonts)->ascent;
197			if(dc.font.descent < (*xfonts)->descent)
198				dc.font.descent = (*xfonts)->descent;
199			xfonts++;
200		}
201	}
202	else {
203		if(dc.font.xfont)
204			XFreeFont(dpy, dc.font.xfont);
205		dc.font.xfont = NULL;
206		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
207		if (!dc.font.xfont)
208			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
209		if (!dc.font.xfont)
210			eprint("error, cannot init 'fixed' font\n");
211		dc.font.ascent = dc.font.xfont->ascent;
212		dc.font.descent = dc.font.xfont->descent;
213	}
214	dc.font.height = dc.font.ascent + dc.font.descent;
215}
216
217unsigned int
218textw(const char *text) {
219	return textnw(text, strlen(text)) + dc.font.height;
220}