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annotate libcore/core/theme.c @ 135:eadfed7674ac

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misc: fix all warnings
author David Demelier <markand@malikania.fr>
date Sun, 11 Oct 2020 15:01:26 +0200
parents 197374e9f0b2
children 7f1af54bb35a
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1 /*
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2 * theme.c -- abstract theming
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20 #include <stddef.h>
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21
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22 #include "button.h"
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23 #include "checkbox.h"
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24 #include "font.h"
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25 #include "frame.h"
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26 #include "label.h"
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27 #include "maths.h"
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28 #include "painter.h"
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29 #include "panic.h"
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30 #include "texture.h"
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31 #include "theme.h"
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32 #include "util.h"
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33
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34 #include <core/assets/fonts/f25-bank-printer.h>
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35 #include <core/assets/fonts/comic-neue.h>
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36
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37 #define THEME(t) (t ? t : &default_theme)
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38
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39 #define CHECKBOX_W 16
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40 #define CHECKBOX_H 16
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41 #define CHECKBOX_RAD 6
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42
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43 static void
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44 box(int x, int y, unsigned int w, unsigned int h)
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45 {
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46 /* Some basic outlines. */
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47 painter_set_color(0x4d3533ff);
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48
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49 painter_draw_line(x, y, x + w, y);
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50 painter_draw_line(x, y + h, x + w, y + h);
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51 painter_draw_line(x, y, x, y + h);
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52 painter_draw_line(x + w, y, x + w, y + h);
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53 }
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54
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55 static void
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56 draw_frame(struct theme *t, const struct frame *frame)
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57 {
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58 (void)t;
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59
102
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60 if (frame->style == FRAME_STYLE_BOX)
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61 painter_set_color(0x6e4c30ff);
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62 else
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63 painter_set_color(0xce9248ff);
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64
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65 painter_draw_rectangle(frame->x, frame->y, frame->w, frame->h);
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66 box(frame->x, frame->y, frame->w, frame->h);
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67 }
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68
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69 static void
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70 draw_label(struct theme *t, const struct label *label)
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71 {
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72 struct texture tex;
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73 int x = label->x, y = label->y;
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74 int *px = &x, *py = &y;
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75
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76 if (label->flags & LABEL_NO_HCENTER)
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77 px = NULL;
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78 if (label->flags & LABEL_NO_VCENTER)
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79 py = NULL;
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80
101
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81 /* Shadow text, only if enabled. */
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82 if (!(label->flags & LABEL_NO_SHADOW)) {
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83 t->fonts[THEME_FONT_INTERFACE]->color = t->colors[THEME_COLOR_SHADOW];
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84
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85 if (!font_render(t->fonts[THEME_FONT_INTERFACE], &tex, label->text))
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86 panic();
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87
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88 maths_centerize(px, py, tex.w, tex.h,
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89 label->x, label->y, label->w, label->h);
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90
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91 texture_draw(&tex, x + 1, y + 1);
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92 texture_finish(&tex);
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93 }
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94
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95 /* Normal text. */
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96 t->fonts[THEME_FONT_INTERFACE]->color = label->color
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97 ? label->color
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98 : t->colors[THEME_COLOR_NORMAL];
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99
99
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100 if (!font_render(t->fonts[THEME_FONT_INTERFACE], &tex, label->text))
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101 panic();
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102
106
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103 maths_centerize(px, py, tex.w, tex.h,
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104 label->x, label->y, label->w, label->h);
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105
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106 texture_draw(&tex, x, y);
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107 texture_finish(&tex);
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108 }
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109
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110 static void
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111 draw_button(struct theme *t, const struct button *button)
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112 {
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113 (void)t;
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114
102
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115 struct label label = {
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116 .text = button->text,
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117 .x = button->x,
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118 .y = button->y,
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119 .w = button->w,
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120 .h = button->h
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121 };
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122
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123 painter_set_color(0xabcdefff);
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124 painter_draw_rectangle(button->x, button->y, button->w, button->h);
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125
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126 label_draw(&label);
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127
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128 box(button->x, button->y, button->w, button->h);
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129 }
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130
115
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131 static void
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132 draw_checkbox(struct theme *t, const struct checkbox *cb)
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133 {
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134 box(cb->x, cb->y, CHECKBOX_W, CHECKBOX_H);
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135
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136 if (cb->checked)
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137 painter_draw_rectangle(cb->x + 5, cb->y + 5, CHECKBOX_W - 9, CHECKBOX_H - 9);
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138
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139 if (cb->label) {
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140 const unsigned int w = cb->w - (t->padding * 2) - CHECKBOX_W;
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141 const int x = cb->x + (t->padding * 2) + CHECKBOX_W;
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142
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143 struct label label = {
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144 .text = cb->label,
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145 .flags = LABEL_NO_HCENTER,
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146 .x = x,
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147 .y = cb->y,
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148 .w = w,
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149 .h = cb->h
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150 };
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151
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152 draw_label(t, &label);
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153 }
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154 }
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155
99
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156 /* Default theme. */
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157 static struct theme default_theme = {
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158 .colors = {
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159 [THEME_COLOR_NORMAL] = 0xffffffff,
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160 [THEME_COLOR_SELECTED] = 0x006554ff,
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161 [THEME_COLOR_SHADOW] = 0x000000ff
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162 },
115
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163 .padding = 10,
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164 .draw_frame = draw_frame,
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165 .draw_label = draw_label,
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166 .draw_button = draw_button,
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167 .draw_checkbox = draw_checkbox
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168 };
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169
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170 /* Default font catalog. */
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171 #define FONT(bin, size, index) \
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172 { bin, sizeof (bin), size, &default_theme.fonts[index], {0} }
99
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173
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174 static struct font_catalog {
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175 const unsigned char *data;
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176 const size_t datasz;
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177 unsigned int size;
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178 struct font **dest;
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179 struct font font;
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180 } default_fonts[] = {
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181 FONT(fonts_f25_bank_printer, 10, THEME_FONT_DEBUG),
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182 FONT(fonts_comic_neue, 20, THEME_FONT_INTERFACE)
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183 };
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184
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185 bool
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186 theme_init(void)
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187 {
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188 /* Open all fonts. */
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189 for (size_t i = 0; i < NELEM(default_fonts); ++i) {
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190 struct font_catalog *fc = &default_fonts[i];
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191
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192 if (!font_openmem(&fc->font, fc->data, fc->datasz, fc->size))
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193 goto failed;
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194
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195 /* Reference this font into the catalog. */
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196 *default_fonts[i].dest = &default_fonts[i].font;
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197 }
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198
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199 return true;
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200
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201 failed:
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202 theme_finish();
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203
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204 return false;
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205 }
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206
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207 struct theme *
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208 theme_default(void)
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209 {
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210 return &default_theme;
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211 }
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212
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213 unsigned int
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214 theme_padding(const struct theme *t)
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215 {
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216 return THEME(t)->padding;
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217 }
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218
99
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219 void
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220 theme_draw_frame(struct theme *t, const struct frame *frame)
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221 {
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222 assert(frame);
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223
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224 THEME(t)->draw_frame(THEME(t), frame);
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225 }
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226
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227 void
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228 theme_draw_label(struct theme *t, const struct label *label)
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229 {
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230 assert(label);
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231
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232 THEME(t)->draw_label(THEME(t), label);
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233 }
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234
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235 void
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236 theme_draw_button(struct theme *t, const struct button *button)
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237 {
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238 assert(button);
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239
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240 THEME(t)->draw_button(THEME(t), button);
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241 }
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242
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243 void
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244 theme_draw_checkbox(struct theme *t, const struct checkbox *cb)
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245 {
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246 assert(cb);
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247
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248 THEME(t)->draw_checkbox(THEME(t), cb);
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249 }
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250
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251 void
99
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252 theme_finish(void)
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253 {
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254 for (size_t i = 0; i < NELEM(default_fonts); ++i) {
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255 font_finish(&default_fonts[i].font);
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256 *default_fonts[i].dest = NULL;
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257 }
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258 }