1/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  2 * See LICENSE file for license details.
  3 */
  4#include "dwm.h"
  5#include <string.h>
  6
  7/* static */
  8
  9static void
 10drawcaret(unsigned long col[ColLast]) {
 11	int x;
 12	XGCValues gcv;
 13	XPoint pt[3];
 14
 15	gcv.foreground = col[ColFG];
 16	XChangeGC(dpy, dc.gc, GCForeground, &gcv);
 17	x = (dc.font.ascent + dc.font.descent) / 2;
 18	pt[0].x = dc.x + 1;
 19	pt[0].y = dc.y + 1 + x;
 20	pt[1].x = 0;
 21	pt[1].y = -x;
 22	pt[2].x = x;
 23	pt[2].y = 0;
 24	XDrawLines(dpy, dc.drawable, dc.gc, pt, 3, CoordModePrevious);
 25}
 26
 27static void
 28drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
 29	int x;
 30	XGCValues gcv;
 31	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 32
 33	gcv.foreground = col[ColFG];
 34	XChangeGC(dpy, dc.gc, GCForeground, &gcv);
 35	x = (dc.font.ascent + dc.font.descent + 2) / 4;
 36	r.x = dc.x + 1;
 37	r.y = dc.y + 1;
 38	if(filled) {
 39		r.width = r.height = x + 1;
 40		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 41	}
 42	else if(empty) {
 43		r.width = r.height = x;
 44		XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 45	}
 46}
 47
 48static Bool
 49isoccupied(unsigned int t) {
 50	Client *c;
 51
 52	for(c = clients; c; c = c->next)
 53		if(c->tags[t])
 54			return True;
 55	return False;
 56}
 57
 58static unsigned int
 59textnw(const char *text, unsigned int len) {
 60	XRectangle r;
 61
 62	if(dc.font.set) {
 63		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 64		return r.width;
 65	}
 66	return XTextWidth(dc.font.xfont, text, len);
 67}
 68
 69/* extern */
 70
 71void
 72drawstatus(void) {
 73	int i, x;
 74
 75	dc.x = dc.y = 0;
 76	for(i = 0; i < ntags; i++) {
 77		dc.w = textw(tags[i]);
 78		if(seltag[i]) {
 79			drawtext(tags[i], dc.sel);
 80			drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel);
 81		}
 82		else {
 83			drawtext(tags[i], dc.norm);
 84			drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm);
 85		}
 86		dc.x += dc.w;
 87	}
 88	dc.w = blw;
 89	drawtext(lt->symbol, dc.norm);
 90	x = dc.x + dc.w;
 91	dc.w = textw(stext);
 92	dc.x = sw - dc.w;
 93	if(dc.x < x) {
 94		dc.x = x;
 95		dc.w = sw - x;
 96	}
 97	drawtext(stext, dc.norm);
 98	if((dc.w = dc.x - x) > bh) {
 99		dc.x = x;
100		if(sel) {
101			drawtext(sel->name, dc.sel);
102			if(sel->isversatile)
103				drawcaret(dc.sel);
104		}
105		else
106			drawtext(NULL, dc.norm);
107	}
108	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
109	XSync(dpy, False);
110}
111
112void
113drawtext(const char *text, unsigned long col[ColLast]) {
114	int x, y, w, h;
115	static char buf[256];
116	unsigned int len, olen;
117	XGCValues gcv;
118	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
119
120	XSetForeground(dpy, dc.gc, col[ColBG]);
121	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
122	if(!text)
123		return;
124	w = 0;
125	olen = len = strlen(text);
126	if(len >= sizeof buf)
127		len = sizeof buf - 1;
128	memcpy(buf, text, len);
129	buf[len] = 0;
130	h = dc.font.ascent + dc.font.descent;
131	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
132	x = dc.x + (h / 2);
133	/* shorten text if necessary */
134	while(len && (w = textnw(buf, len)) > dc.w - h)
135		buf[--len] = 0;
136	if(len < olen) {
137		if(len > 1)
138			buf[len - 1] = '.';
139		if(len > 2)
140			buf[len - 2] = '.';
141		if(len > 3)
142			buf[len - 3] = '.';
143	}
144	if(w > dc.w)
145		return; /* too long */
146	gcv.foreground = col[ColFG];
147	if(dc.font.set) {
148		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
149		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
150	}
151	else {
152		gcv.font = dc.font.xfont->fid;
153		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
154		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
155	}
156}
157
158unsigned int
159textw(const char *text) {
160	return textnw(text, strlen(text)) + dc.font.height;
161}