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annotate libmlk-ui/mlk/ui/notify.c @ 504:52a305833381

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ui: rework styles
author David Demelier <markand@malikania.fr>
date Wed, 01 Mar 2023 14:07:10 +0100
parents 2af25db99273
children 6100c643dba0
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1 /*
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2 * notify.c -- in game notifications
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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/texture.h>
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25 #include <mlk/core/trace.h>
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26 #include <mlk/core/window.h>
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27
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28 #include "align.h"
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29 #include "frame.h"
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30 #include "label.h"
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31 #include "notify.h"
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32 #include "theme.h"
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33
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34 #define WIDTH (mlk_window.w / 3)
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35 #define HEIGHT (mlk_window.h / 10)
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36
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37 struct geo {
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38 const struct mlk_theme *theme;
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39 int frame_x;
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40 int frame_y;
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41 unsigned int frame_w;
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42 unsigned int frame_h;
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43 int icon_x;
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44 int icon_y;
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45 int title_x;
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46 int title_y;
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47 int body_x;
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48 int body_y;
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49 };
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50
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51 static void draw(const struct mlk_notify *, size_t);
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52
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53 static const struct mlk_notify_system default_system = {
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54 .draw = draw
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55 };
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56 static const struct mlk_notify_system *system = &default_system;
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57 static struct mlk_notify stack[MLK_NOTIFY_MAX];
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58 static size_t stacksz;
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59
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60 static void
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61 geometry(struct geo *geo, const struct mlk_notify *n, size_t index)
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62 {
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63 int x, y;
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64
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65 /* Determine theme. */
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66 geo->theme = system->theme ? system->theme : &mlk_theme;
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67
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68 /* Determine notification position. */
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69 x = mlk_window.w - geo->theme->padding;
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70 x -= WIDTH;
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71
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72 y = geo->theme->padding * (index + 1);;
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73 y += HEIGHT * index;
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74
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75 /* Content frame. */
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76 geo->frame_x = x;
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77 geo->frame_y = y;
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78 geo->frame_w = WIDTH;
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79 geo->frame_h = HEIGHT;
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80
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81 /* Align icon at the left center. */
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82 if (n->icon->h >= HEIGHT) {
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83 mlk_tracef("notification icon is too large: %u > %u", n->icon->h, HEIGHT);
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84 geo->icon_x = x + geo->theme->padding;
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85 geo->icon_y = y + geo->theme->padding;
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86 } else {
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87 mlk_align(MLK_ALIGN_LEFT, &geo->icon_x, &geo->icon_y, n->icon->w, n->icon->h, x, y, WIDTH, HEIGHT);
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88 geo->icon_x += geo->icon_y - y;
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89 }
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90
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91 /* Align title to the right of the icon at the same y coordinate. */
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92 geo->title_x = geo->icon_x + n->icon->w + geo->theme->padding;
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93 geo->title_y = geo->icon_y;
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94 geo->title_y -= mlk_font_height(geo->theme->fonts[MLK_THEME_FONT_INTERFACE]) / 2;
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95
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96 /* Align body so it ends at the end of the icon. */
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97 geo->body_x = geo->title_x;
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98 geo->body_y = geo->icon_y + n->icon->h;
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99 geo->body_y -= mlk_font_height(geo->theme->fonts[MLK_THEME_FONT_INTERFACE]) / 2;
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100 }
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101
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102 static void
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103 draw_frame(const struct geo *geo)
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104 {
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105 const struct mlk_frame f = {
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106 .x = geo->frame_x,
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107 .y = geo->frame_y,
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108 .w = geo->frame_w,
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109 .h = geo->frame_h
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110 };
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111
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112 mlk_frame_draw(&f);
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113 }
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114
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115 static void
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116 draw_icon(const struct geo *geo, const struct mlk_notify *n)
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117 {
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118 mlk_texture_draw(n->icon, geo->icon_x, geo->icon_y);
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119 }
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120
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121 static void
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122 draw_title(const struct geo *geo, const struct mlk_notify *n)
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123 {
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124 const struct mlk_label l = {
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125 .x = geo->title_x,
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126 .y = geo->title_y,
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127 .text = n->title,
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128 .flags = MLK_LABEL_FLAGS_SHADOW
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129 };
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130
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131 mlk_label_draw(&l);
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132 }
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133
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134 static void
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135 draw_body(const struct geo *geo, const struct mlk_notify *n)
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136 {
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137 const struct mlk_label l = {
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138 .x = geo->body_x,
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139 .y = geo->body_y,
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140 .text = n->body,
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141 .flags = MLK_LABEL_FLAGS_SHADOW
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142 };
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143
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144 mlk_label_draw(&l);
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145 }
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146
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147 static void
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148 draw(const struct mlk_notify *n, size_t index)
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149 {
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150 struct geo geo;
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151
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152 /* Compute notification size and widgets. */
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153 geometry(&geo, n, index);
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154
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155 draw_frame(&geo);
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156 draw_icon(&geo, n);
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157 draw_title(&geo, n);
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158 draw_body(&geo, n);
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159 }
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160
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161 void
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162 mlk_notify(const struct mlk_texture *icon, const char *title, const char *body)
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163 {
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164 assert(icon);
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165 assert(title);
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166 assert(body);
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167
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168 struct mlk_notify *n;
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169
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170 if (stacksz >= MLK_NOTIFY_MAX) {
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171 memmove(&stack[0], &stack[1], sizeof (stack[0]) - MLK_NOTIFY_MAX - 1);
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172 n = &stack[MLK_NOTIFY_MAX - 1];
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173 } else
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174 n = &stack[stacksz++];
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175
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176 memset(n, 0, sizeof (*n));
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177 n->icon = icon;
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178 n->title = title;
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179 n->body = body;
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180 }
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181
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182 void
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183 mlk_notify_update(unsigned int ticks)
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184 {
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185 struct mlk_notify *n;
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186
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187 for (size_t i = 0; i < stacksz; ++i) {
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188 n = &stack[i];
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189 n->elapsed += ticks;
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190
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191 if (n->elapsed >= MLK_NOTIFY_TIMEOUT_DEFAULT)
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192 memmove(n, n + 1, sizeof (*n) * (--stacksz - i));
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193 }
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194 }
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195
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196 void
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197 mlk_notify_draw(void)
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198 {
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199 for (size_t i = 0; i < stacksz; ++i)
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200 system->draw(&stack[i], i);
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201 }
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202
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203 void
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204 mlk_notify_set_system(const struct mlk_notify_system *sys)
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205 {
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206 system = sys ? sys : &default_system;
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207 }