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annotate libmlk-ui/mlk/ui/theme.c @ 450:b26dd49f69ff

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core: event -> mlk_event (and friends)
author David Demelier <markand@malikania.fr>
date Sat, 18 Feb 2023 13:37:11 +0100
parents e1fa1b867281
children 90a097b1aa0f
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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) 2020-2023 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 #include <string.h>
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22
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23 #include <mlk/core/font.h>
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24 #include <mlk/core/maths.h>
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25 #include <mlk/core/painter.h>
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26 #include <mlk/core/panic.h>
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27 #include <mlk/core/texture.h>
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28 #include <mlk/core/util.h>
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29
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30 #include <assets/fonts/opensans-light.h>
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31 #include <assets/fonts/opensans-medium.h>
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32 #include <assets/fonts/opensans-regular.h>
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33
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34 #include "align.h"
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35 #include "button.h"
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36 #include "checkbox.h"
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37 #include "frame.h"
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38 #include "label.h"
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39 #include "theme.h"
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40
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41 #define THEME(t) (t ? t : &default_theme)
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42
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43 /* Default font catalog. */
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44 #define FONT(bin, size, index) \
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45 { bin, sizeof (bin), size, &default_theme.fonts[index], {0} }
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46
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47 /* Default theme. */
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48 static struct theme default_theme = {
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49 .colors = {
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50 [THEME_COLOR_DEBUG] = 0xff0000ff,
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51 [THEME_COLOR_NORMAL] = 0xffffffff,
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52 [THEME_COLOR_SELECTED] = 0x006554ff,
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53 [THEME_COLOR_SHADOW] = 0x000000ff
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54 },
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55 .padding = 10,
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56 .draw_frame = frame_draw_default,
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57 .draw_label = label_draw_default,
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58 .draw_button = button_draw_default,
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59 .draw_checkbox = checkbox_draw_default
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60 };
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61
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62 static struct font_catalog {
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63 const unsigned char *data;
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64 const size_t datasz;
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65 unsigned int size;
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66 struct font **dest;
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67 struct font font;
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68 } default_fonts[] = {
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69 FONT(assets_fonts_opensans_light, 12, THEME_FONT_DEBUG),
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70 FONT(assets_fonts_opensans_regular, 14, THEME_FONT_INTERFACE),
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71 FONT(assets_fonts_opensans_medium, 14, THEME_FONT_IMPORTANT)
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72 };
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73
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74 int
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75 theme_init(void)
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76 {
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77 /* Open all fonts. */
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78 for (size_t i = 0; i < UTIL_SIZE(default_fonts); ++i) {
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79 struct font_catalog *fc = &default_fonts[i];
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80
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81 if (font_openmem(&fc->font, fc->data, fc->datasz, fc->size) < 0)
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82 goto failed;
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83
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84 /* Reference this font into the catalog. */
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85 *default_fonts[i].dest = &default_fonts[i].font;
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86 }
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87
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88 return 0;
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89
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90 failed:
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91 theme_finish();
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92
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93 return -1;
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94 }
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95
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96 struct theme *
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97 theme_default(void)
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98 {
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99 return &default_theme;
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100 }
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101
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102 unsigned int
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103 theme_padding(const struct theme *t)
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104 {
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105 return THEME(t)->padding;
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106 }
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107
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108 void
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109 theme_shallow(struct theme *dst, const struct theme *src)
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110 {
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111 assert(dst);
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112
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113 memcpy(dst, src ? src : &default_theme, sizeof (*src));
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114 }
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115
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116 void
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117 theme_draw_frame(const struct theme *t, const struct frame *frame)
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118 {
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119 assert(frame);
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120
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121 THEME(t)->draw_frame(THEME(t), frame);
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122 }
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123
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124 void
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125 theme_draw_label(const struct theme *t, const struct label *label)
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126 {
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127 assert(label);
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128
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129 THEME(t)->draw_label(THEME(t), label);
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130 }
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131
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132 void
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133 theme_draw_button(const struct theme *t, const struct button *button)
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134 {
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135 assert(button);
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136
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137 THEME(t)->draw_button(THEME(t), button);
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138 }
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139
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140 void
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141 theme_draw_checkbox(const struct theme *t, const struct checkbox *cb)
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142 {
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143 assert(cb);
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144
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145 THEME(t)->draw_checkbox(THEME(t), cb);
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146 }
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147
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148 void
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149 theme_finish(void)
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150 {
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151 for (size_t i = 0; i < UTIL_SIZE(default_fonts); ++i) {
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152 font_finish(&default_fonts[i].font);
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153 *default_fonts[i].dest = NULL;
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154 }
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155 }