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 unsigned int
 10textnw(const char *text, unsigned int len) {
 11	XRectangle r;
 12
 13	if(dc.font.set) {
 14		XmbTextExtents(dc.font.set, text, len, NULL, &r);
 15		return r.width;
 16	}
 17	return XTextWidth(dc.font.xfont, text, len);
 18}
 19
 20static void
 21drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) {
 22	int x;
 23	XGCValues gcv;
 24	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 25
 26	gcv.foreground = col[ColFG];
 27	XChangeGC(dpy, dc.gc, GCForeground, &gcv);
 28	x = (dc.font.ascent + dc.font.descent + 2) / 4;
 29	r.x = dc.x + 1;
 30	r.y = dc.y + 1;
 31	if(filled) {
 32		r.width = r.height = x + 1;
 33		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 34	}
 35	else if(empty) {
 36		r.width = r.height = x;
 37		XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 38	}
 39}
 40
 41static Bool
 42isoccupied(unsigned int t) {
 43	Client *c;
 44
 45	for(c = clients; c; c = c->next)
 46		if(c->tags[t])
 47			return True;
 48	return False;
 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		drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm);
 83	}
 84	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0);
 85	XSync(dpy, False);
 86}
 87
 88void
 89drawtext(const char *text, unsigned long col[ColLast]) {
 90	int x, y, w, h;
 91	static char buf[256];
 92	unsigned int len, olen;
 93	XGCValues gcv;
 94	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 95
 96	XSetForeground(dpy, dc.gc, col[ColBG]);
 97	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 98	if(!text)
 99		return;
100	w = 0;
101	olen = len = strlen(text);
102	if(len >= sizeof buf)
103		len = sizeof buf - 1;
104	memcpy(buf, text, len);
105	buf[len] = 0;
106	h = dc.font.ascent + dc.font.descent;
107	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
108	x = dc.x + (h / 2);
109	/* shorten text if necessary */
110	while(len && (w = textnw(buf, len)) > dc.w - h)
111		buf[--len] = 0;
112	if(len < olen) {
113		if(len > 1)
114			buf[len - 1] = '.';
115		if(len > 2)
116			buf[len - 2] = '.';
117		if(len > 3)
118			buf[len - 3] = '.';
119	}
120	if(w > dc.w)
121		return; /* too long */
122	gcv.foreground = col[ColFG];
123	if(dc.font.set) {
124		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
125		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
126	}
127	else {
128		gcv.font = dc.font.xfont->fid;
129		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
130		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
131	}
132}
133
134unsigned int
135textw(const char *text) {
136	return textnw(text, strlen(text)) + dc.font.height;
137}