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