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annotate draw.c @ 692:8d3720e06c89

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Jukka, thanks for being faster than me!
author Anselm R. Garbe <arg@suckless.org>
date Mon, 15 Jan 2007 19:01:57 +0100
parents cbec08a54a15
children 4d12382fef8e
rev   line source
arg@643 1 /* (C)opyright MMIV-MMVII Anselm R. Garbe <garbeam at gmail dot com>
garbeam@2 2 * See LICENSE file for license details.
garbeam@2 3 */
garbeam@76 4 #include "dwm.h"
garbeam@2 5 #include <stdio.h>
garbeam@2 6 #include <string.h>
garbeam@32 7
garbeam@84 8 /* static */
garbeam@76 9
arg@572 10 static Bool
arg@572 11 isoccupied(unsigned int t)
arg@572 12 {
arg@572 13 Client *c;
arg@572 14 for(c = clients; c; c = c->next)
arg@572 15 if(c->tags[t])
arg@572 16 return True;
arg@572 17 return False;
arg@572 18 }
arg@572 19
garbeam@77 20 static unsigned int
arg@461 21 textnw(const char *text, unsigned int len) {
garbeam@77 22 XRectangle r;
arg@123 23
garbeam@77 24 if(dc.font.set) {
garbeam@77 25 XmbTextExtents(dc.font.set, text, len, NULL, &r);
garbeam@77 26 return r.width;
garbeam@77 27 }
garbeam@77 28 return XTextWidth(dc.font.xfont, text, len);
garbeam@75 29 }
garbeam@75 30
garbeam@77 31 static void
arg@607 32 drawtext(const char *text, unsigned long col[ColLast], Bool filledsquare, Bool emptysquare) {
arg@344 33 int x, y, w, h;
arg@344 34 static char buf[256];
arg@344 35 unsigned int len, olen;
arg@352 36 XGCValues gcv;
arg@344 37 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
arg@606 38 XPoint pt[5];
arg@344 39
arg@353 40 XSetForeground(dpy, dc.gc, col[ColBG]);
arg@344 41 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
garbeam@3 42 if(!text)
garbeam@2 43 return;
arg@218 44 w = 0;
arg@269 45 olen = len = strlen(text);
arg@581 46 if(len >= sizeof buf)
arg@581 47 len = sizeof buf - 1;
garbeam@3 48 memcpy(buf, text, len);
garbeam@2 49 buf[len] = 0;
garbeam@34 50 h = dc.font.ascent + dc.font.descent;
garbeam@34 51 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
garbeam@34 52 x = dc.x + (h / 2);
garbeam@2 53 /* shorten text if necessary */
garbeam@43 54 while(len && (w = textnw(buf, len)) > dc.w - h)
garbeam@2 55 buf[--len] = 0;
arg@269 56 if(len < olen) {
arg@273 57 if(len > 1)
arg@273 58 buf[len - 1] = '.';
arg@273 59 if(len > 2)
arg@273 60 buf[len - 2] = '.';
arg@269 61 if(len > 3)
arg@273 62 buf[len - 3] = '.';
arg@269 63 }
garbeam@34 64 if(w > dc.w)
garbeam@2 65 return; /* too long */
arg@353 66 gcv.foreground = col[ColFG];
arg@352 67 if(dc.font.set) {
arg@353 68 XChangeGC(dpy, dc.gc, GCForeground, &gcv);
arg@342 69 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
arg@352 70 }
garbeam@2 71 else {
arg@352 72 gcv.font = dc.font.xfont->fid;
arg@353 73 XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
arg@342 74 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
arg@342 75 }
arg@606 76 x = (h + 2) / 4;
arg@607 77 if(filledsquare) {
arg@608 78 r.x = dc.x + 1;
arg@608 79 r.y = dc.y + 1;
arg@608 80 r.width = r.height = x + 1;
arg@605 81 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
garbeam@2 82 }
arg@607 83 else if(emptysquare) {
arg@608 84 pt[0].x = dc.x + 1;
arg@608 85 pt[0].y = dc.y + 1;
arg@606 86 pt[1].x = x;
arg@606 87 pt[1].y = 0;
arg@606 88 pt[2].x = 0;
arg@606 89 pt[2].y = x;
arg@606 90 pt[3].x = -x;
arg@606 91 pt[3].y = 0;
arg@606 92 pt[4].x = 0;
arg@606 93 pt[4].y = -x;
arg@606 94 XDrawLines(dpy, dc.drawable, dc.gc, pt, 5, CoordModePrevious);
arg@604 95 }
arg@604 96 }
garbeam@2 97
garbeam@84 98 /* extern */
garbeam@77 99
garbeam@77 100 void
arg@487 101 drawstatus(void) {
arg@124 102 int i, x;
garbeam@77 103
garbeam@77 104 dc.x = dc.y = 0;
arg@178 105 for(i = 0; i < ntags; i++) {
garbeam@77 106 dc.w = textw(tags[i]);
arg@353 107 if(seltag[i])
arg@572 108 drawtext(tags[i], dc.sel, sel && sel->tags[i], isoccupied(i));
garbeam@77 109 else
arg@572 110 drawtext(tags[i], dc.norm, sel && sel->tags[i], isoccupied(i));
arg@362 111 dc.x += dc.w;
garbeam@77 112 }
arg@362 113 dc.w = bmw;
arg@689 114 drawtext(arrange == dofloat ? FLOATSYMBOL : TILESYMBOL, dc.norm, False, False);
arg@361 115 x = dc.x + dc.w;
garbeam@77 116 dc.w = textw(stext);
arg@570 117 dc.x = bw - dc.w;
arg@342 118 if(dc.x < x) {
arg@342 119 dc.x = x;
arg@342 120 dc.w = bw - x;
arg@342 121 }
arg@689 122 drawtext(stext, dc.norm, False, False);
arg@371 123 if((dc.w = dc.x - x) > bh) {
arg@342 124 dc.x = x;
arg@572 125 drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False, False);
arg@124 126 }
garbeam@77 127 XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
garbeam@79 128 XSync(dpy, False);
garbeam@77 129 }
garbeam@77 130
garbeam@43 131 unsigned long
arg@461 132 getcolor(const char *colstr) {
arg@123 133 Colormap cmap = DefaultColormap(dpy, screen);
garbeam@2 134 XColor color;
garbeam@43 135
arg@495 136 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
arg@495 137 eprint("error, cannot allocate color '%s'\n", colstr);
garbeam@2 138 return color.pixel;
garbeam@2 139 }
garbeam@2 140
garbeam@2 141 void
arg@461 142 setfont(const char *fontstr) {
arg@619 143 char *def, **missing;
garbeam@33 144 int i, n;
garbeam@2 145
garbeam@7 146 missing = NULL;
garbeam@43 147 if(dc.font.set)
garbeam@43 148 XFreeFontSet(dpy, dc.font.set);
garbeam@43 149 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
garbeam@2 150 if(missing) {
garbeam@2 151 while(n--)
garbeam@2 152 fprintf(stderr, "missing fontset: %s\n", missing[n]);
garbeam@2 153 XFreeStringList(missing);
garbeam@2 154 }
garbeam@43 155 if(dc.font.set) {
garbeam@2 156 XFontSetExtents *font_extents;
garbeam@2 157 XFontStruct **xfonts;
garbeam@2 158 char **font_names;
garbeam@43 159 dc.font.ascent = dc.font.descent = 0;
garbeam@43 160 font_extents = XExtentsOfFontSet(dc.font.set);
garbeam@43 161 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
garbeam@43 162 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
garbeam@43 163 if(dc.font.ascent < (*xfonts)->ascent)
garbeam@43 164 dc.font.ascent = (*xfonts)->ascent;
garbeam@43 165 if(dc.font.descent < (*xfonts)->descent)
garbeam@43 166 dc.font.descent = (*xfonts)->descent;
garbeam@2 167 xfonts++;
garbeam@2 168 }
garbeam@2 169 }
garbeam@2 170 else {
garbeam@43 171 if(dc.font.xfont)
garbeam@43 172 XFreeFont(dpy, dc.font.xfont);
garbeam@43 173 dc.font.xfont = NULL;
arg@626 174 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
arg@627 175 eprint("error, cannot load font: '%s'\n", fontstr);
garbeam@43 176 dc.font.ascent = dc.font.xfont->ascent;
garbeam@43 177 dc.font.descent = dc.font.xfont->descent;
garbeam@2 178 }
garbeam@43 179 dc.font.height = dc.font.ascent + dc.font.descent;
garbeam@2 180 }
garbeam@76 181
garbeam@76 182 unsigned int
arg@461 183 textw(const char *text) {
garbeam@76 184 return textnw(text, strlen(text)) + dc.font.height;
garbeam@76 185 }