draw.c (view raw)
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#include <stdio.h>
7#include <string.h>
8#include <X11/Xlocale.h>
9
10/* static */
11
12static unsigned int
13textnw(const char *text, unsigned int len)
14{
15 XRectangle r;
16
17 if(dc.font.set) {
18 XmbTextExtents(dc.font.set, text, len, NULL, &r);
19 return r.width;
20 }
21 return XTextWidth(dc.font.xfont, text, len);
22}
23
24static void
25drawtext(const char *text, Bool invert, Bool highlight)
26{
27 int x, y, w, h;
28 static char buf[256];
29 unsigned int len, olen;
30 XGCValues gcv;
31 XPoint points[5];
32 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
33
34 XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
35 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
36 points[0].x = dc.x;
37 points[0].y = dc.y;
38 points[1].x = dc.w - 1;
39 points[1].y = 0;
40 points[2].x = 0;
41 points[2].y = dc.h - 1;
42 points[3].x = -(dc.w - 1);
43 points[3].y = 0;
44 points[4].x = 0;
45 points[4].y = -(dc.h - 1);
46 XSetForeground(dpy, dc.gc, dc.border);
47 XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
48
49 if(!text)
50 return;
51
52 w = 0;
53 olen = len = strlen(text);
54 if(len >= sizeof(buf))
55 len = sizeof(buf) - 1;
56 memcpy(buf, text, len);
57 buf[len] = 0;
58
59 h = dc.font.ascent + dc.font.descent;
60 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
61 x = dc.x + (h / 2);
62
63 /* shorten text if necessary */
64 while(len && (w = textnw(buf, len)) > dc.w - h)
65 buf[--len] = 0;
66 if(len < olen) {
67 if(len > 1)
68 buf[len - 1] = '.';
69 if(len > 2)
70 buf[len - 2] = '.';
71 if(len > 3)
72 buf[len - 3] = '.';
73 }
74
75 if(w > dc.w)
76 return; /* too long */
77 gcv.foreground = invert ? dc.bg : dc.fg;
78 gcv.background = invert ? dc.fg : dc.bg;
79 if(dc.font.set) {
80 XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
81 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
82 }
83 else {
84 gcv.font = dc.font.xfont->fid;
85 XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
86 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
87 }
88 if(highlight) {
89 points[0].x = dc.x + 1;
90 points[0].y = dc.y + 1;
91 points[1].x = dc.w - 3;
92 points[1].y = 0;
93 points[2].x = 0;
94 points[2].y = dc.h - 3;
95 points[3].x = -(dc.w - 3);
96 points[3].y = 0;
97 points[4].x = 0;
98 points[4].y = -(dc.h - 3);
99 XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
100 }
101}
102
103/* extern */
104
105void
106drawall()
107{
108 Client *c;
109
110 for(c = clients; c; c = getnext(c->next))
111 drawtitle(c);
112 drawstatus();
113}
114
115void
116drawstatus()
117{
118 int i, x;
119 Bool istile = arrange == dotile;
120
121 dc.x = dc.y = 0;
122 dc.w = bw;
123 drawtext(NULL, !istile, False);
124
125 dc.w = 0;
126 for(i = 0; i < ntags; i++) {
127 dc.x += dc.w;
128 dc.w = textw(tags[i]);
129 if(istile)
130 drawtext(tags[i], seltag[i], sel && sel->tags[i]);
131 else
132 drawtext(tags[i], !seltag[i], sel && sel->tags[i]);
133 }
134 x = dc.x + dc.w;
135 dc.w = textw(stext);
136 dc.x = bx + bw - dc.w;
137 if(dc.x < x) {
138 dc.x = x;
139 dc.w = bw - x;
140 }
141 drawtext(stext, !istile, False);
142
143 if(sel && ((dc.w = dc.x - x) > bh)) {
144 dc.x = x;
145 drawtext(sel->name, istile, False);
146 }
147 XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
148 XSync(dpy, False);
149}
150
151void
152drawtitle(Client *c)
153{
154 int i;
155 Bool istile = arrange == dotile;
156
157 if(c == sel && issel) {
158 drawstatus();
159 XUnmapWindow(dpy, c->twin);
160 XSetWindowBorder(dpy, c->win, dc.fg);
161 return;
162 }
163
164 XSetWindowBorder(dpy, c->win, dc.bg);
165 XMapWindow(dpy, c->twin);
166 dc.x = dc.y = 0;
167 dc.w = c->tw;
168 drawtext(c->name, !istile, False);
169 XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
170 XSync(dpy, False);
171}
172
173unsigned long
174getcolor(const char *colstr)
175{
176 Colormap cmap = DefaultColormap(dpy, screen);
177 XColor color;
178
179 XAllocNamedColor(dpy, cmap, colstr, &color, &color);
180 return color.pixel;
181}
182
183void
184setfont(const char *fontstr)
185{
186 char **missing, *def;
187 int i, n;
188
189 missing = NULL;
190 setlocale(LC_ALL, "");
191 if(dc.font.set)
192 XFreeFontSet(dpy, dc.font.set);
193 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
194 if(missing) {
195 while(n--)
196 fprintf(stderr, "missing fontset: %s\n", missing[n]);
197 XFreeStringList(missing);
198 if(dc.font.set) {
199 XFreeFontSet(dpy, dc.font.set);
200 dc.font.set = NULL;
201 }
202 }
203 if(dc.font.set) {
204 XFontSetExtents *font_extents;
205 XFontStruct **xfonts;
206 char **font_names;
207
208 dc.font.ascent = dc.font.descent = 0;
209 font_extents = XExtentsOfFontSet(dc.font.set);
210 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
211 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
212 if(dc.font.ascent < (*xfonts)->ascent)
213 dc.font.ascent = (*xfonts)->ascent;
214 if(dc.font.descent < (*xfonts)->descent)
215 dc.font.descent = (*xfonts)->descent;
216 xfonts++;
217 }
218 }
219 else {
220 if(dc.font.xfont)
221 XFreeFont(dpy, dc.font.xfont);
222 dc.font.xfont = NULL;
223 dc.font.xfont = XLoadQueryFont(dpy, fontstr);
224 if (!dc.font.xfont)
225 dc.font.xfont = XLoadQueryFont(dpy, "fixed");
226 if (!dc.font.xfont)
227 eprint("error, cannot init 'fixed' font\n");
228 dc.font.ascent = dc.font.xfont->ascent;
229 dc.font.descent = dc.font.xfont->descent;
230 }
231 dc.font.height = dc.font.ascent + dc.font.descent;
232}
233
234unsigned int
235textw(const char *text)
236{
237 return textnw(text, strlen(text)) + dc.font.height;
238}