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