Mercurial > aewl
annotate draw.c @ 17:aaf520f53110
updated README
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Tue, 11 Jul 2006 18:59:09 +0200 |
| parents | 49e2fc9fb94f |
| children | e8f627998d6f |
| rev | line source |
|---|---|
| 2 | 1 /* |
| 2 * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com> | |
| 3 * See LICENSE file for license details. | |
| 4 */ | |
| 5 | |
| 6 #include <stdio.h> | |
| 7 #include <string.h> | |
| 8 | |
| 9 #include "draw.h" | |
| 10 #include "util.h" | |
| 11 | |
| 12 static void | |
| 13 drawborder(Display *dpy, Brush *b) | |
| 14 { | |
| 15 XPoint points[5]; | |
| 16 XSetLineAttributes(dpy, b->gc, 1, LineSolid, CapButt, JoinMiter); | |
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parents:
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17 XSetForeground(dpy, b->gc, b->border); |
| 2 | 18 points[0].x = b->rect.x; |
| 19 points[0].y = b->rect.y; | |
| 20 points[1].x = b->rect.width - 1; | |
| 21 points[1].y = 0; | |
| 22 points[2].x = 0; | |
| 23 points[2].y = b->rect.height - 1; | |
| 24 points[3].x = -(b->rect.width - 1); | |
| 25 points[3].y = 0; | |
| 26 points[4].x = 0; | |
| 27 points[4].y = -(b->rect.height - 1); | |
| 28 XDrawLines(dpy, b->drawable, b->gc, points, 5, CoordModePrevious); | |
| 29 } | |
| 30 | |
| 31 void | |
|
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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32 draw(Display *dpy, Brush *b, Bool border, const char *text) |
| 2 | 33 { |
| 34 unsigned int x, y, w, h, len; | |
| 35 static char buf[256]; | |
| 36 XGCValues gcv; | |
| 37 | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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38 XSetForeground(dpy, b->gc, b->bg); |
| 2 | 39 XFillRectangles(dpy, b->drawable, b->gc, &b->rect, 1); |
| 40 | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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41 if(border) |
| 2 | 42 drawborder(dpy, b); |
| 43 | |
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parents:
2
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changeset
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44 if(!text) |
| 2 | 45 return; |
| 46 | |
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Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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47 len = strlen(text); |
| 2 | 48 if(len >= sizeof(buf)) |
| 49 len = sizeof(buf) - 1; | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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50 memcpy(buf, text, len); |
| 2 | 51 buf[len] = 0; |
| 52 | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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53 h = b->font.ascent + b->font.descent; |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
54 y = b->rect.y + (b->rect.height / 2) - (h / 2) + b->font.ascent; |
| 2 | 55 x = b->rect.x + (h / 2); |
| 56 | |
| 57 /* shorten text if necessary */ | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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58 while(len && (w = textwidth_l(&b->font, buf, len)) > b->rect.width - h) |
| 2 | 59 buf[--len] = 0; |
| 60 | |
| 61 if(w > b->rect.width) | |
| 62 return; /* too long */ | |
| 63 | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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64 gcv.foreground = b->fg; |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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65 gcv.background = b->bg; |
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e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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66 if(b->font.set) { |
| 2 | 67 XChangeGC(dpy, b->gc, GCForeground | GCBackground, &gcv); |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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68 XmbDrawImageString(dpy, b->drawable, b->font.set, b->gc, |
| 2 | 69 x, y, buf, len); |
| 70 } | |
| 71 else { | |
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e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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72 gcv.font = b->font.xfont->fid; |
| 2 | 73 XChangeGC(dpy, b->gc, GCForeground | GCBackground | GCFont, &gcv); |
| 74 XDrawImageString(dpy, b->drawable, b->gc, x, y, buf, len); | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 static unsigned long | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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79 xloadcolors(Display *dpy, Colormap cmap, const char *colstr) |
| 2 | 80 { |
| 81 XColor color; | |
| 82 XAllocNamedColor(dpy, cmap, colstr, &color, &color); | |
| 83 return color.pixel; | |
| 84 } | |
| 85 | |
| 86 void | |
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several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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87 loadcolors(Display *dpy, int screen, Brush *b, |
| 2 | 88 const char *bg, const char *fg, const char *border) |
| 89 { | |
| 90 Colormap cmap = DefaultColormap(dpy, screen); | |
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e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
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91 b->bg = xloadcolors(dpy, cmap, bg); |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
92 b->fg = xloadcolors(dpy, cmap, fg); |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
93 b->border = xloadcolors(dpy, cmap, border); |
| 2 | 94 } |
| 95 | |
| 96 unsigned int | |
| 97 textwidth_l(Fnt *font, char *text, unsigned int len) | |
| 98 { | |
| 99 if(font->set) { | |
| 100 XRectangle r; | |
| 101 XmbTextExtents(font->set, text, len, 0, &r); | |
| 102 return r.width; | |
| 103 } | |
| 104 return XTextWidth(font->xfont, text, len); | |
| 105 } | |
| 106 | |
| 107 unsigned int | |
| 108 textwidth(Fnt *font, char *text) | |
| 109 { | |
| 110 return textwidth_l(font, text, strlen(text)); | |
| 111 } | |
| 112 | |
| 113 void | |
| 114 loadfont(Display *dpy, Fnt *font, const char *fontstr) | |
| 115 { | |
| 116 char **missing, *def; | |
| 117 int n; | |
| 118 | |
| 7 | 119 missing = NULL; |
| 2 | 120 def = "?"; |
| 121 setlocale(LC_ALL, ""); | |
| 122 if(font->set) | |
| 123 XFreeFontSet(dpy, font->set); | |
| 124 font->set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); | |
| 125 if(missing) { | |
| 126 while(n--) | |
| 127 fprintf(stderr, "missing fontset: %s\n", missing[n]); | |
| 128 XFreeStringList(missing); | |
| 129 if(font->set) { | |
| 130 XFreeFontSet(dpy, font->set); | |
| 7 | 131 font->set = NULL; |
| 2 | 132 } |
| 133 } | |
| 134 if(font->set) { | |
| 135 XFontSetExtents *font_extents; | |
| 136 XFontStruct **xfonts; | |
| 137 char **font_names; | |
| 138 unsigned int i; | |
| 139 | |
| 140 font->ascent = font->descent = 0; | |
| 141 font_extents = XExtentsOfFontSet(font->set); | |
| 142 n = XFontsOfFontSet(font->set, &xfonts, &font_names); | |
| 143 for(i = 0, font->ascent = 0, font->descent = 0; i < n; i++) { | |
| 144 if(font->ascent < (*xfonts)->ascent) | |
| 145 font->ascent = (*xfonts)->ascent; | |
| 146 if(font->descent < (*xfonts)->descent) | |
| 147 font->descent = (*xfonts)->descent; | |
| 148 xfonts++; | |
| 149 } | |
| 150 } | |
| 151 else { | |
| 152 if(font->xfont) | |
| 153 XFreeFont(dpy, font->xfont); | |
| 7 | 154 font->xfont = NULL; |
| 2 | 155 font->xfont = XLoadQueryFont(dpy, fontstr); |
| 156 if (!font->xfont) | |
| 157 font->xfont = XLoadQueryFont(dpy, "fixed"); | |
| 158 if (!font->xfont) | |
| 159 error("error, cannot load 'fixed' font\n"); | |
| 160 font->ascent = font->xfont->ascent; | |
| 161 font->descent = font->xfont->descent; | |
| 162 } | |
|
3
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
163 font->height = font->ascent + font->descent; |
| 2 | 164 } |
| 5 | 165 |
| 166 unsigned int | |
| 167 labelheight(Fnt *font) | |
| 168 { | |
| 169 return font->height + 4; | |
| 170 } |