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annotate libui/ui/theme.c @ 192:4ad7420ab678

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rpg: add minimalist battle system, continue #2477 @60h - Implement battle as states, - Add basic support for spells (no calculation yet), - Add won/lost state, - Add animations and messages, - Add order.
author David Demelier <markand@malikania.fr>
date Sat, 07 Nov 2020 16:00:39 +0100
parents 6992085d47fd
children
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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 #include <string.h>
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22
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23 #include <core/font.h>
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24 #include <core/maths.h>
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25 #include <core/painter.h>
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26 #include <core/panic.h>
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27 #include <core/texture.h>
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28 #include <core/util.h>
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29
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30 #include <ui/assets/fonts/opensans-light.h>
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31 #include <ui/assets/fonts/opensans-regular.h>
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32
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33 #include "align.h"
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34 #include "button.h"
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35 #include "checkbox.h"
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36 #include "frame.h"
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37 #include "label.h"
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38 #include "theme.h"
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39
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40 #define THEME(t) (t ? t : &default_theme)
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41
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42 /* Default font catalog. */
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43 #define FONT(bin, size, index) \
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44 { bin, sizeof (bin), size, &default_theme.fonts[index], {0} }
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45
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46 /* Default theme. */
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47 static struct theme default_theme = {
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48 .colors = {
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49 [THEME_COLOR_DEBUG] = 0xff0000ff,
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50 [THEME_COLOR_NORMAL] = 0xffffffff,
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51 [THEME_COLOR_SELECTED] = 0x006554ff,
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52 [THEME_COLOR_SHADOW] = 0x000000ff
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53 },
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54 .padding = 10,
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55 .draw_frame = frame_draw_default,
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56 .draw_label = label_draw_default,
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57 .draw_button = button_draw_default,
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58 .draw_checkbox = checkbox_draw_default
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59 };
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60
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61 static struct font_catalog {
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62 const unsigned char *data;
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63 const size_t datasz;
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64 unsigned int size;
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65 struct font **dest;
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66 struct font font;
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67 } default_fonts[] = {
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68 FONT(fonts_opensans_light, 12, THEME_FONT_DEBUG),
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69 FONT(fonts_opensans_regular, 14, THEME_FONT_INTERFACE)
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70 };
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71
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72 bool
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73 theme_init(void)
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74 {
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75 /* Open all fonts. */
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76 for (size_t i = 0; i < NELEM(default_fonts); ++i) {
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77 struct font_catalog *fc = &default_fonts[i];
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78
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79 if (!font_openmem(&fc->font, fc->data, fc->datasz, fc->size))
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80 goto failed;
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81
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82 /* Reference this font into the catalog. */
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83 *default_fonts[i].dest = &default_fonts[i].font;
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84 }
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85
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86 return true;
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87
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88 failed:
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89 theme_finish();
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90
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91 return false;
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92 }
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93
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94 struct theme *
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95 theme_default(void)
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96 {
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97 return &default_theme;
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98 }
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99
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100 unsigned int
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101 theme_padding(const struct theme *t)
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102 {
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103 return THEME(t)->padding;
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104 }
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105
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106 void
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107 theme_shallow(struct theme *dst, const struct theme *src)
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108 {
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109 assert(dst);
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110
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111 memcpy(dst, src ? src : &default_theme, sizeof (*src));
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112 }
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113
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114 void
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115 theme_draw_frame(const struct theme *t, const struct frame *frame)
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116 {
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117 assert(frame);
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118
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119 THEME(t)->draw_frame(THEME(t), frame);
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120 }
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121
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122 void
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123 theme_draw_label(const struct theme *t, const struct label *label)
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124 {
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125 assert(label);
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126
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127 THEME(t)->draw_label(THEME(t), label);
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128 }
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129
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130 void
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131 theme_draw_button(const struct theme *t, const struct button *button)
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132 {
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133 assert(button);
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134
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135 THEME(t)->draw_button(THEME(t), button);
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136 }
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137
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138 void
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139 theme_draw_checkbox(const struct theme *t, const struct checkbox *cb)
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140 {
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141 assert(cb);
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142
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143 THEME(t)->draw_checkbox(THEME(t), cb);
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144 }
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145
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146 void
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147 theme_finish(void)
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148 {
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149 for (size_t i = 0; i < NELEM(default_fonts); ++i) {
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150 font_finish(&default_fonts[i].font);
4ac71ac10c9f core: start adding some UI elements
David Demelier <markand@malikania.fr>
parents:
diff changeset
151 *default_fonts[i].dest = NULL;
4ac71ac10c9f core: start adding some UI elements
David Demelier <markand@malikania.fr>
parents:
diff changeset
152 }
4ac71ac10c9f core: start adding some UI elements
David Demelier <markand@malikania.fr>
parents:
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153 }