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annotate examples/example-ui.c @ 151:b19d076856d2

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ui: cleanup theme module, closes #2498
author David Demelier <markand@malikania.fr>
date Thu, 15 Oct 2020 14:01:24 +0200
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children 1008a796a9e7
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151
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1 /*
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2 * example-action.c -- example on how to use automatic actions
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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 <core/clock.h>
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20 #include <core/event.h>
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21 #include <core/panic.h>
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22 #include <core/painter.h>
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23 #include <core/sys.h>
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24 #include <core/util.h>
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25 #include <core/window.h>
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26
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27 #include <ui/button.h>
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28 #include <ui/checkbox.h>
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29 #include <ui/frame.h>
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30 #include <ui/label.h>
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31 #include <ui/theme.h>
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32
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33 #define W (1280)
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34 #define H (720)
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35
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36 static struct frame frame = {
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37 .x = 10,
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38 .y = 10,
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39 .w = 400,
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40 .h = 200
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41 };
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42
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43 static struct label title = {
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44 .text = "Preferences",
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45 .x = 10,
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46 .y = 10,
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47 .w = 400,
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48 .h = 200,
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49 .flags = LABEL_FLAGS_SHADOW,
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50 .align = ALIGN_TOP_LEFT
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51 };
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52
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53 static struct {
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54 struct checkbox cb;
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55 struct label label;
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56 } autosave = {
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57 .cb = {
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58 .x = 20,
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59 .y = 60,
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60 .w = 20,
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61 .h = 20
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62 },
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63 .label = {
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64 .text = "Auto save game",
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65 .x = 20 + 20,
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66 .y = 60,
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67 .w = 200,
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68 .h = 20,
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69 .align = ALIGN_LEFT,
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70 .flags = LABEL_FLAGS_SHADOW
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71 }
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72 };
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73
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74 static struct button btquit = {
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75 .text = "Quit",
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76 .w = 50,
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77 .h = 20
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78 };
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79
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80 static void
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81 init(void)
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82 {
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83 if (!sys_init() ||
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84 !window_init("Example - UI", W, H) ||
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85 !theme_init())
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86 panic();
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87 }
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88
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89 static void
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90 run(void)
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91 {
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92 struct clock clock = {0};
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93
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94 clock_start(&clock);
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95
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96 for (;;) {
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97 unsigned int elapsed = clock_elapsed(&clock);
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98
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99 clock_start(&clock);
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100
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101 for (union event ev; event_poll(&ev); ) {
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102 switch (ev.type) {
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103 case EVENT_QUIT:
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104 return;
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105 default:
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106 checkbox_handle(&autosave.cb, &ev);
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107 button_handle(&btquit, &ev);
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108
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109 if (btquit.state == BUTTON_STATE_ACTIVATED)
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110 return;
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111
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112 break;
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113 }
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114 }
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115
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116 /* Compute button position at runtime. */
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117 align(ALIGN_BOTTOM_RIGHT, &btquit.x, &btquit.y, btquit.w, btquit.h,
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118 frame.x, frame.y, frame.w, frame.h);
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119
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120 btquit.x -= theme_default()->padding;
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121 btquit.y -= theme_default()->padding;
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122
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123 painter_set_color(0xffffffff);
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124 painter_clear();
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125 frame_draw(&frame);
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126 label_draw(&title);
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127 checkbox_draw(&autosave.cb);
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128 label_draw(&autosave.label);
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129 button_draw(&btquit);
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130 painter_present();
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131
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132 if ((elapsed = clock_elapsed(&clock)) < 20)
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133 delay(20 - elapsed);
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134 }
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135 }
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136
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137 static void
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138 quit(void)
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139 {
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140 theme_finish();
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141 window_finish();
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142 sys_finish();
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143 }
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144
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145 int
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146 main(int argc, char **argv)
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147 {
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148 (void)argc;
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149 (void)argv;
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150
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151 init();
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152 run();
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David Demelier <markand@malikania.fr>
parents:
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153 quit();
b19d076856d2 ui: cleanup theme module, closes #2498
David Demelier <markand@malikania.fr>
parents:
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154
b19d076856d2 ui: cleanup theme module, closes #2498
David Demelier <markand@malikania.fr>
parents:
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155 return 0;
b19d076856d2 ui: cleanup theme module, closes #2498
David Demelier <markand@malikania.fr>
parents:
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156 }
b19d076856d2 ui: cleanup theme module, closes #2498
David Demelier <markand@malikania.fr>
parents:
diff changeset
157