1/*
  2 * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
  3 * See LICENSE file for license details.
  4 */
  5#include "dwm.h"
  6
  7#include <stdio.h>
  8#include <string.h>
  9#include <X11/Xlocale.h>
 10
 11/* static functions */
 12
 13static void
 14drawborder(void)
 15{
 16	XPoint points[5];
 17	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 18	XSetForeground(dpy, dc.gc, dc.border);
 19	points[0].x = dc.x;
 20	points[0].y = dc.y;
 21	points[1].x = dc.w - 1;
 22	points[1].y = 0;
 23	points[2].x = 0;
 24	points[2].y = dc.h - 1;
 25	points[3].x = -(dc.w - 1);
 26	points[3].y = 0;
 27	points[4].x = 0;
 28	points[4].y = -(dc.h - 1);
 29	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
 30}
 31
 32/* extern functions */
 33
 34void
 35drawall()
 36{
 37	Client *c;
 38
 39	for(c = clients; c; c = getnext(c->next))
 40		drawtitle(c);
 41	drawstatus();
 42}
 43
 44void
 45drawstatus()
 46{
 47	int i;
 48	Bool istile = arrange == dotile;
 49
 50	dc.x = dc.y = 0;
 51	dc.w = bw;
 52	drawtext(NULL, !istile, False);
 53
 54	dc.w = 0;
 55	for(i = 0; i < TLast; i++) {
 56		dc.x += dc.w;
 57		dc.w = textw(tags[i]);
 58		if(istile)
 59			drawtext(tags[i], (i == tsel), True);
 60		else
 61			drawtext(tags[i], (i != tsel), True);
 62	}
 63	if(sel) {
 64		dc.x += dc.w;
 65		dc.w = textw(sel->name);
 66		drawtext(sel->name, istile, True);
 67	}
 68	dc.w = textw(stext);
 69	dc.x = bx + bw - dc.w;
 70	drawtext(stext, !istile, False);
 71
 72	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
 73	XFlush(dpy);
 74}
 75
 76void
 77drawtext(const char *text, Bool invert, Bool border)
 78{
 79	int x, y, w, h;
 80	unsigned int len;
 81	static char buf[256];
 82	XGCValues gcv;
 83	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 84
 85	XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
 86	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 87
 88	w = 0;
 89	if(border)
 90		drawborder();
 91
 92	if(!text)
 93		return;
 94
 95	len = strlen(text);
 96	if(len >= sizeof(buf))
 97		len = sizeof(buf) - 1;
 98	memcpy(buf, text, len);
 99	buf[len] = 0;
100
101	h = dc.font.ascent + dc.font.descent;
102	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
103	x = dc.x + (h / 2);
104
105	/* shorten text if necessary */
106	while(len && (w = textnw(buf, len)) > dc.w - h)
107		buf[--len] = 0;
108
109	if(w > dc.w)
110		return; /* too long */
111
112	gcv.foreground = invert ? dc.bg : dc.fg;
113	gcv.background = invert ? dc.fg : dc.bg;
114	if(dc.font.set) {
115		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
116		XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc,
117				x, y, buf, len);
118	}
119	else {
120		gcv.font = dc.font.xfont->fid;
121		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
122		XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len);
123	}
124}
125
126void
127drawtitle(Client *c)
128{
129	int i;
130	Bool istile = arrange == dotile;
131
132	if(c == sel) {
133		drawstatus();
134		XUnmapWindow(dpy, c->title);
135		XSetWindowBorder(dpy, c->win, dc.fg);
136		return;
137	}
138
139	XSetWindowBorder(dpy, c->win, dc.bg);
140	XMapWindow(dpy, c->title);
141
142	dc.x = dc.y = 0;
143
144	dc.w = 0;
145	for(i = 0; i < TLast; i++) {
146		if(c->tags[i]) {
147			dc.x += dc.w;
148			dc.w = textw(c->tags[i]);
149			drawtext(c->tags[i], !istile, True);
150		}
151	}
152	dc.x += dc.w;
153	dc.w = textw(c->name);
154	drawtext(c->name, !istile, True);
155	XCopyArea(dpy, dc.drawable, c->title, dc.gc,
156			0, 0, c->tw, c->th, 0, 0);
157	XFlush(dpy);
158}
159
160unsigned long
161getcolor(const char *colstr)
162{
163	XColor color;
164	Colormap cmap = DefaultColormap(dpy, screen);
165
166	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
167	return color.pixel;
168}
169
170void
171setfont(const char *fontstr)
172{
173	char **missing, *def;
174	int i, n;
175
176	missing = NULL;
177	setlocale(LC_ALL, "");
178	if(dc.font.set)
179		XFreeFontSet(dpy, dc.font.set);
180	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
181	if(missing) {
182		while(n--)
183			fprintf(stderr, "missing fontset: %s\n", missing[n]);
184		XFreeStringList(missing);
185		if(dc.font.set) {
186			XFreeFontSet(dpy, dc.font.set);
187			dc.font.set = NULL;
188		}
189	}
190	if(dc.font.set) {
191		XFontSetExtents *font_extents;
192		XFontStruct **xfonts;
193		char **font_names;
194
195		dc.font.ascent = dc.font.descent = 0;
196		font_extents = XExtentsOfFontSet(dc.font.set);
197		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
198		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
199			if(dc.font.ascent < (*xfonts)->ascent)
200				dc.font.ascent = (*xfonts)->ascent;
201			if(dc.font.descent < (*xfonts)->descent)
202				dc.font.descent = (*xfonts)->descent;
203			xfonts++;
204		}
205	}
206	else {
207		if(dc.font.xfont)
208			XFreeFont(dpy, dc.font.xfont);
209		dc.font.xfont = NULL;
210		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
211		if (!dc.font.xfont)
212			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
213		if (!dc.font.xfont)
214			eprint("error, cannot init 'fixed' font\n");
215		dc.font.ascent = dc.font.xfont->ascent;
216		dc.font.descent = dc.font.xfont->descent;
217	}
218	dc.font.height = dc.font.ascent + dc.font.descent;
219}
220
221unsigned int
222textnw(char *text, unsigned int len)
223{
224	XRectangle r;
225	if(dc.font.set) {
226		XmbTextExtents(dc.font.set, text, len, NULL, &r);
227		return r.width;
228	}
229	return XTextWidth(dc.font.xfont, text, len);
230}
231
232unsigned int
233textw(char *text)
234{
235	return textnw(text, strlen(text)) + dc.font.height;
236}