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view draw.c @ 659:498b86c72a40

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preserving c1->snext and c2->snext in swap() as well.
author Anselm R. Garbe <arg@suckless.org>
date Fri, 05 Jan 2007 21:52:17 +0100
parents e90bf387bf6f
children 5d79c351e30a
line source
1 /* (C)opyright MMIV-MMVII Anselm R. Garbe <garbeam at gmail dot com>
2 * See LICENSE file for license details.
3 */
4 #include "dwm.h"
5 #include <stdio.h>
6 #include <string.h>
7
8 /* static */
9
10 static Bool
11 isoccupied(unsigned int t)
12 {
13 Client *c;
14 for(c = clients; c; c = c->next)
15 if(c->tags[t])
16 return True;
17 return False;
18 }
19
20 static unsigned int
21 textnw(const char *text, unsigned int len) {
22 XRectangle r;
23
24 if(dc.font.set) {
25 XmbTextExtents(dc.font.set, text, len, NULL, &r);
26 return r.width;
27 }
28 return XTextWidth(dc.font.xfont, text, len);
29 }
30
31 static void
32 drawtext(const char *text, unsigned long col[ColLast], Bool filledsquare, Bool emptysquare) {
33 int x, y, w, h;
34 static char buf[256];
35 unsigned int len, olen;
36 XGCValues gcv;
37 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
38 XPoint pt[5];
39
40 XSetForeground(dpy, dc.gc, col[ColBG]);
41 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
42 if(!text)
43 return;
44 w = 0;
45 olen = len = strlen(text);
46 if(len >= sizeof buf)
47 len = sizeof buf - 1;
48 memcpy(buf, text, len);
49 buf[len] = 0;
50 h = dc.font.ascent + dc.font.descent;
51 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
52 x = dc.x + (h / 2);
53 /* shorten text if necessary */
54 while(len && (w = textnw(buf, len)) > dc.w - h)
55 buf[--len] = 0;
56 if(len < olen) {
57 if(len > 1)
58 buf[len - 1] = '.';
59 if(len > 2)
60 buf[len - 2] = '.';
61 if(len > 3)
62 buf[len - 3] = '.';
63 }
64 if(w > dc.w)
65 return; /* too long */
66 gcv.foreground = col[ColFG];
67 if(dc.font.set) {
68 XChangeGC(dpy, dc.gc, GCForeground, &gcv);
69 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
70 }
71 else {
72 gcv.font = dc.font.xfont->fid;
73 XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
74 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
75 }
76 x = (h + 2) / 4;
77 if(filledsquare) {
78 r.x = dc.x + 1;
79 r.y = dc.y + 1;
80 r.width = r.height = x + 1;
81 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
82 }
83 else if(emptysquare) {
84 pt[0].x = dc.x + 1;
85 pt[0].y = dc.y + 1;
86 pt[1].x = x;
87 pt[1].y = 0;
88 pt[2].x = 0;
89 pt[2].y = x;
90 pt[3].x = -x;
91 pt[3].y = 0;
92 pt[4].x = 0;
93 pt[4].y = -x;
94 XDrawLines(dpy, dc.drawable, dc.gc, pt, 5, CoordModePrevious);
95 }
96 }
97
98 /* extern */
99
100 void
101 drawall(void) {
102 Client *c;
103
104 for(c = clients; c; c = getnext(c->next))
105 drawclient(c);
106 drawstatus();
107 }
108
109 void
110 drawstatus(void) {
111 int i, x;
112
113 dc.x = dc.y = 0;
114 for(i = 0; i < ntags; i++) {
115 dc.w = textw(tags[i]);
116 if(seltag[i])
117 drawtext(tags[i], dc.sel, sel && sel->tags[i], isoccupied(i));
118 else
119 drawtext(tags[i], dc.norm, sel && sel->tags[i], isoccupied(i));
120 dc.x += dc.w;
121 }
122 dc.w = bmw;
123 drawtext(arrange == dofloat ? FLOATSYMBOL : TILESYMBOL, dc.status, False, False);
124 x = dc.x + dc.w;
125 dc.w = textw(stext);
126 dc.x = bw - dc.w;
127 if(dc.x < x) {
128 dc.x = x;
129 dc.w = bw - x;
130 }
131 drawtext(stext, dc.status, False, False);
132 if((dc.w = dc.x - x) > bh) {
133 dc.x = x;
134 drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False, False);
135 }
136 XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
137 XSync(dpy, False);
138 }
139
140 void
141 drawclient(Client *c) {
142 if(c == sel && issel) {
143 drawstatus();
144 XUnmapWindow(dpy, c->twin);
145 XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
146 return;
147 }
148 XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
149 XMapWindow(dpy, c->twin);
150 dc.x = dc.y = 0;
151 dc.w = c->tw;
152 drawtext(c->name, dc.norm, False,False);
153 XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
154 XSync(dpy, False);
155 }
156
157 unsigned long
158 getcolor(const char *colstr) {
159 Colormap cmap = DefaultColormap(dpy, screen);
160 XColor color;
161
162 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
163 eprint("error, cannot allocate color '%s'\n", colstr);
164 return color.pixel;
165 }
166
167 void
168 setfont(const char *fontstr) {
169 char *def, **missing;
170 int i, n;
171
172 missing = NULL;
173 if(dc.font.set)
174 XFreeFontSet(dpy, dc.font.set);
175 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
176 if(missing) {
177 while(n--)
178 fprintf(stderr, "missing fontset: %s\n", missing[n]);
179 XFreeStringList(missing);
180 }
181 if(dc.font.set) {
182 XFontSetExtents *font_extents;
183 XFontStruct **xfonts;
184 char **font_names;
185 dc.font.ascent = dc.font.descent = 0;
186 font_extents = XExtentsOfFontSet(dc.font.set);
187 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
188 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
189 if(dc.font.ascent < (*xfonts)->ascent)
190 dc.font.ascent = (*xfonts)->ascent;
191 if(dc.font.descent < (*xfonts)->descent)
192 dc.font.descent = (*xfonts)->descent;
193 xfonts++;
194 }
195 }
196 else {
197 if(dc.font.xfont)
198 XFreeFont(dpy, dc.font.xfont);
199 dc.font.xfont = NULL;
200 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
201 eprint("error, cannot load font: '%s'\n", fontstr);
202 dc.font.ascent = dc.font.xfont->ascent;
203 dc.font.descent = dc.font.xfont->descent;
204 }
205 dc.font.height = dc.font.ascent + dc.font.descent;
206 }
207
208 unsigned int
209 textw(const char *text) {
210 return textnw(text, strlen(text)) + dc.font.height;
211 }