aewl

annotate draw.c @ 32:082c75b937b5

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removed unnecessary crap
author Anselm R. Garbe <garbeam@wmii.de>
date Thu, 13 Jul 2006 01:30:55 +0200
parents 2e0fb4130bfb
children e90449e03167
rev   line source
garbeam@2 1 /*
garbeam@2 2 * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
garbeam@2 3 * See LICENSE file for license details.
garbeam@2 4 */
garbeam@2 5
garbeam@2 6 #include <stdio.h>
garbeam@2 7 #include <string.h>
garbeam@2 8
garbeam@32 9 #include <X11/Xlocale.h>
garbeam@32 10
garbeam@32 11 #include "wm.h"
garbeam@2 12
garbeam@2 13 static void
garbeam@2 14 drawborder(Display *dpy, Brush *b)
garbeam@2 15 {
garbeam@2 16 XPoint points[5];
garbeam@2 17 XSetLineAttributes(dpy, b->gc, 1, LineSolid, CapButt, JoinMiter);
garbeam@3 18 XSetForeground(dpy, b->gc, b->border);
garbeam@26 19 points[0].x = b->x;
garbeam@26 20 points[0].y = b->y;
garbeam@26 21 points[1].x = b->w - 1;
garbeam@2 22 points[1].y = 0;
garbeam@2 23 points[2].x = 0;
garbeam@26 24 points[2].y = b->h - 1;
garbeam@26 25 points[3].x = -(b->w - 1);
garbeam@2 26 points[3].y = 0;
garbeam@2 27 points[4].x = 0;
garbeam@26 28 points[4].y = -(b->h - 1);
garbeam@2 29 XDrawLines(dpy, b->drawable, b->gc, points, 5, CoordModePrevious);
garbeam@2 30 }
garbeam@2 31
garbeam@2 32 void
garbeam@3 33 draw(Display *dpy, Brush *b, Bool border, const char *text)
garbeam@2 34 {
garbeam@2 35 unsigned int x, y, w, h, len;
garbeam@2 36 static char buf[256];
garbeam@2 37 XGCValues gcv;
garbeam@26 38 XRectangle r = { b->x, b->y, b->w, b->h };
garbeam@2 39
garbeam@3 40 XSetForeground(dpy, b->gc, b->bg);
garbeam@26 41 XFillRectangles(dpy, b->drawable, b->gc, &r, 1);
garbeam@2 42
garbeam@30 43 w = 0;
garbeam@3 44 if(border)
garbeam@2 45 drawborder(dpy, b);
garbeam@2 46
garbeam@3 47 if(!text)
garbeam@2 48 return;
garbeam@2 49
garbeam@3 50 len = strlen(text);
garbeam@2 51 if(len >= sizeof(buf))
garbeam@2 52 len = sizeof(buf) - 1;
garbeam@3 53 memcpy(buf, text, len);
garbeam@2 54 buf[len] = 0;
garbeam@2 55
garbeam@3 56 h = b->font.ascent + b->font.descent;
garbeam@26 57 y = b->y + (b->h / 2) - (h / 2) + b->font.ascent;
garbeam@26 58 x = b->x + (h / 2);
garbeam@2 59
garbeam@2 60 /* shorten text if necessary */
garbeam@26 61 while(len && (w = textnw(&b->font, buf, len)) > b->w - h)
garbeam@2 62 buf[--len] = 0;
garbeam@2 63
garbeam@26 64 if(w > b->w)
garbeam@2 65 return; /* too long */
garbeam@2 66
garbeam@3 67 gcv.foreground = b->fg;
garbeam@3 68 gcv.background = b->bg;
garbeam@3 69 if(b->font.set) {
garbeam@2 70 XChangeGC(dpy, b->gc, GCForeground | GCBackground, &gcv);
garbeam@3 71 XmbDrawImageString(dpy, b->drawable, b->font.set, b->gc,
garbeam@2 72 x, y, buf, len);
garbeam@2 73 }
garbeam@2 74 else {
garbeam@3 75 gcv.font = b->font.xfont->fid;
garbeam@2 76 XChangeGC(dpy, b->gc, GCForeground | GCBackground | GCFont, &gcv);
garbeam@2 77 XDrawImageString(dpy, b->drawable, b->gc, x, y, buf, len);
garbeam@2 78 }
garbeam@2 79 }
garbeam@2 80
garbeam@2 81 static unsigned long
garbeam@3 82 xloadcolors(Display *dpy, Colormap cmap, const char *colstr)
garbeam@2 83 {
garbeam@2 84 XColor color;
garbeam@2 85 XAllocNamedColor(dpy, cmap, colstr, &color, &color);
garbeam@2 86 return color.pixel;
garbeam@2 87 }
garbeam@2 88
garbeam@2 89 void
garbeam@3 90 loadcolors(Display *dpy, int screen, Brush *b,
garbeam@2 91 const char *bg, const char *fg, const char *border)
garbeam@2 92 {
garbeam@2 93 Colormap cmap = DefaultColormap(dpy, screen);
garbeam@3 94 b->bg = xloadcolors(dpy, cmap, bg);
garbeam@3 95 b->fg = xloadcolors(dpy, cmap, fg);
garbeam@3 96 b->border = xloadcolors(dpy, cmap, border);
garbeam@2 97 }
garbeam@2 98
garbeam@2 99 unsigned int
garbeam@26 100 textnw(Fnt *font, char *text, unsigned int len)
garbeam@2 101 {
garbeam@26 102 XRectangle r;
garbeam@2 103 if(font->set) {
garbeam@26 104 XmbTextExtents(font->set, text, len, NULL, &r);
garbeam@2 105 return r.width;
garbeam@2 106 }
garbeam@2 107 return XTextWidth(font->xfont, text, len);
garbeam@2 108 }
garbeam@2 109
garbeam@2 110 unsigned int
garbeam@26 111 textw(Fnt *font, char *text)
garbeam@2 112 {
garbeam@26 113 return textnw(font, text, strlen(text));
garbeam@26 114 }
garbeam@26 115
garbeam@26 116 unsigned int
garbeam@26 117 texth(Fnt *font)
garbeam@26 118 {
garbeam@26 119 return font->height + 4;
garbeam@2 120 }
garbeam@2 121
garbeam@2 122 void
garbeam@2 123 loadfont(Display *dpy, Fnt *font, const char *fontstr)
garbeam@2 124 {
garbeam@2 125 char **missing, *def;
garbeam@2 126 int n;
garbeam@2 127
garbeam@7 128 missing = NULL;
garbeam@2 129 def = "?";
garbeam@2 130 setlocale(LC_ALL, "");
garbeam@2 131 if(font->set)
garbeam@2 132 XFreeFontSet(dpy, font->set);
garbeam@2 133 font->set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
garbeam@2 134 if(missing) {
garbeam@2 135 while(n--)
garbeam@2 136 fprintf(stderr, "missing fontset: %s\n", missing[n]);
garbeam@2 137 XFreeStringList(missing);
garbeam@2 138 if(font->set) {
garbeam@2 139 XFreeFontSet(dpy, font->set);
garbeam@7 140 font->set = NULL;
garbeam@2 141 }
garbeam@2 142 }
garbeam@2 143 if(font->set) {
garbeam@2 144 XFontSetExtents *font_extents;
garbeam@2 145 XFontStruct **xfonts;
garbeam@2 146 char **font_names;
garbeam@2 147 unsigned int i;
garbeam@2 148
garbeam@2 149 font->ascent = font->descent = 0;
garbeam@2 150 font_extents = XExtentsOfFontSet(font->set);
garbeam@2 151 n = XFontsOfFontSet(font->set, &xfonts, &font_names);
garbeam@2 152 for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) {
garbeam@2 153 if(font->ascent < (*xfonts)->ascent)
garbeam@2 154 font->ascent = (*xfonts)->ascent;
garbeam@2 155 if(font->descent < (*xfonts)->descent)
garbeam@2 156 font->descent = (*xfonts)->descent;
garbeam@2 157 xfonts++;
garbeam@2 158 }
garbeam@2 159 }
garbeam@2 160 else {
garbeam@2 161 if(font->xfont)
garbeam@2 162 XFreeFont(dpy, font->xfont);
garbeam@7 163 font->xfont = NULL;
garbeam@2 164 font->xfont = XLoadQueryFont(dpy, fontstr);
garbeam@2 165 if (!font->xfont)
garbeam@2 166 font->xfont = XLoadQueryFont(dpy, "fixed");
garbeam@2 167 if (!font->xfont)
garbeam@2 168 error("error, cannot load 'fixed' font\n");
garbeam@2 169 font->ascent = font->xfont->ascent;
garbeam@2 170 font->descent = font->xfont->descent;
garbeam@2 171 }
garbeam@3 172 font->height = font->ascent + font->descent;
garbeam@2 173 }