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annotate libmlk-rpg/mlk/rpg/message.c @ 546:b7da58230a66

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cmake: fix for RHEL
author David Demelier <markand@malikania.fr>
date Mon, 06 Mar 2023 20:01:00 +0100
parents 7d6a879901e0
children c7664b679a95
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1 /*
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2 * message.c -- message dialog
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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 <stdlib.h>
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21 #include <string.h>
24
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22
431
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23 #include <mlk/core/event.h>
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24 #include <mlk/core/font.h>
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25 #include <mlk/core/maths.h>
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26 #include <mlk/core/painter.h>
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27 #include <mlk/core/panic.h>
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28 #include <mlk/core/sprite.h>
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29 #include <mlk/core/trace.h>
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30 #include <mlk/core/util.h>
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31
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32 #include <mlk/ui/align.h>
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33 #include <mlk/ui/ui.h>
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34 #include <mlk/ui/ui_p.h>
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35
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36 #include "message.h"
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37
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38 static inline struct mlk_font *
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39 style_font(const struct mlk_message *message)
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40 {
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41 const struct mlk_message_style *style = MLK__STYLE(message, mlk_message_style);
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42
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43 if (style->text_font)
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44 return style->text_font;
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45
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46 return mlk_ui_fonts[MLK_UI_FONT_INTERFACE];
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47 }
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48
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49 static unsigned int
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50 min_width(const struct mlk_message *msg)
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51 {
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52 assert(msg);
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53
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54 const struct mlk_message_style *style = MLK__STYLE(msg, mlk_message_style);
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55 struct mlk_font *font;
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56 unsigned int maxw = 0, w = 0;
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57 int err;
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58
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59 font = style_font(msg);
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60
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61 for (size_t i = 0; i < msg->linesz; ++i) {
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62 if (!msg->lines[i])
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63 continue;
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64 if ((err = mlk_font_query(font, msg->lines[i], &w, NULL)) < 0)
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65 return err;
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66 if (w > maxw)
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67 maxw = w;
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68 }
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69
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70 return (style->padding * 2) + maxw;
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71 }
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72
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73 static unsigned int
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74 min_height(const struct mlk_message *msg)
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75 {
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76 assert(msg);
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77
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78 const struct mlk_message_style *style = MLK__STYLE(msg, mlk_message_style);
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79 struct mlk_font *font;
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80 unsigned int lh;
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81
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82 font = style_font(msg);
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83 lh = mlk_font_height(font);
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84
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85 return (style->padding * 2) + (msg->linesz * lh) + ((msg->linesz - 1) * style->padding);
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86 }
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87
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88 static void
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89 draw_frame(const struct mlk_message *msg)
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90 {
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91 const struct mlk_message_style *style = MLK__STYLE(msg, mlk_message_style);
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92
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93 mlk_painter_set_color(style->border_color);
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94 mlk_painter_draw_rectangle(0, 0, msg->w, msg->h);
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95 mlk_painter_set_color(style->bg_color);
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96 mlk_painter_draw_rectangle(
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97 style->border_size,
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98 style->border_size,
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99 msg->w - (style->border_size * 2),
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100 msg->h - (style->border_size * 2)
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101 );
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102 }
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103
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104 static void
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105 draw_lines(const struct mlk_message *msg)
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106 {
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107 const struct mlk_message_style *style;
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108 struct mlk_font *font;
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109 struct mlk_texture texture;
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110 unsigned long color;
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111 int err, x, y;
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112
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113 style = MLK__STYLE(msg, mlk_message_style);
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114 font = style_font(msg);
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115
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116 for (size_t i = 0; i < msg->linesz; ++i) {
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117 if (!msg->lines[i])
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118 continue;
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119
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120 if ((msg->flags & MLK_MESSAGE_FLAGS_QUESTION) && msg->index == (unsigned int)i)
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121 color = style->selected_color;
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122 else
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123 color = style->text_color;
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124
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125 if ((err = mlk_font_render(font, &texture, msg->lines[i], color)) < 0) {
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126 mlk_tracef("%s", mlk_err_string(err));
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127 continue;
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128 }
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129
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130 x = style->padding;
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131 y = style->padding + (i * (texture.h + style->padding));
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132
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133 if (x + texture.w > msg->w)
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134 mlk_tracef("message width too small: %u < %u", msg->w, min_width(msg));
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135 if (y + texture.h > msg->h)
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136 mlk_tracef("message height too small: %u < %u", msg->h, min_height(msg));
140
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parents: 136
diff changeset
137
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
138 mlk_texture_draw(&texture, x, y);
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parents: 505
diff changeset
139 mlk_texture_finish(&texture);
140
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
parents: 136
diff changeset
140 }
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
parents: 136
diff changeset
141 }
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parents: 136
diff changeset
142
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
143 static int
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144 delegate_query(struct mlk_message_delegate *self,
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parents: 505
diff changeset
145 const struct mlk_message *msg,
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
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diff changeset
146 unsigned int *w,
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
147 unsigned int *h)
24
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148 {
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
149 (void)self;
159
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
150
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
151 if (w)
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parents: 158
diff changeset
152 *w = min_width(msg);
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parents: 158
diff changeset
153 if (h)
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parents: 158
diff changeset
154 *h = min_height(msg);
535
7d6a879901e0 misc: fix
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parents: 534
diff changeset
155
7d6a879901e0 misc: fix
David Demelier <markand@malikania.fr>
parents: 534
diff changeset
156 return 0;
159
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
157 }
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
158
534
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diff changeset
159 static void
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diff changeset
160 delegate_update(struct mlk_message_delegate *self,
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diff changeset
161 struct mlk_message *msg,
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diff changeset
162 unsigned int ticks)
64
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diff changeset
163 {
534
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diff changeset
164 (void)self;
64
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diff changeset
165
534
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diff changeset
166 const struct mlk_message_style *style = MLK__STYLE(msg, mlk_message_style);
24
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167
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168 msg->elapsed += ticks;
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169
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170 switch (msg->state) {
534
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diff changeset
171 case MLK_MESSAGE_STATE_OPENING:
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diff changeset
172 msg->scale = (double)msg->elapsed / (double)style->delay;
100
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diff changeset
173
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parents: 99
diff changeset
174 if (msg->scale > 1)
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diff changeset
175 msg->scale = 1;
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diff changeset
176
534
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177 if (msg->elapsed >= style->delay) {
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diff changeset
178 msg->state = MLK_MESSAGE_STATE_SHOWING;
62
d07acc6ee4d9 core: improve message
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179 msg->elapsed = 0;
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180 }
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parents: 60
diff changeset
181
24
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182 break;
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
183 case MLK_MESSAGE_STATE_SHOWING:
24
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184 /* Do automatically switch state if requested by the user. */
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
185 if (msg->flags & MLK_MESSAGE_FLAGS_AUTOMATIC && msg->elapsed >= style->duration) {
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diff changeset
186 msg->state = msg->flags & MLK_MESSAGE_FLAGS_FADEOUT
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diff changeset
187 ? MLK_MESSAGE_STATE_HIDING
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188 : MLK_MESSAGE_STATE_NONE;
62
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
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diff changeset
189 msg->elapsed = 0;
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David Demelier <markand@malikania.fr>
parents: 60
diff changeset
190 }
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
191
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
192 break;
534
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diff changeset
193 case MLK_MESSAGE_STATE_HIDING:
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diff changeset
194 msg->scale = 1 - (double)msg->elapsed / (double)style->delay;
100
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parents: 99
diff changeset
195
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
196 if (msg->scale < 0)
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diff changeset
197 msg->scale = 0;
534
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diff changeset
198 if (msg->elapsed >= style->delay) {
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199 msg->state = MLK_MESSAGE_STATE_NONE;
62
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
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diff changeset
200 msg->elapsed = 0;
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
201 }
24
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parents:
diff changeset
202
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
203 break;
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David Demelier <markand@malikania.fr>
parents:
diff changeset
204 default:
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David Demelier <markand@malikania.fr>
parents:
diff changeset
205 break;
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
206 }
60
7266c750b649 core: simplify message
David Demelier <markand@malikania.fr>
parents: 59
diff changeset
207
99
4ac71ac10c9f core: start adding some UI elements
David Demelier <markand@malikania.fr>
parents: 97
diff changeset
208 }
4ac71ac10c9f core: start adding some UI elements
David Demelier <markand@malikania.fr>
parents: 97
diff changeset
209
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
210 static void
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diff changeset
211 delegate_draw(struct mlk_message_delegate *self, const struct mlk_message *msg)
24
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212 {
534
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213 (void)self;
24
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214
472
bc5483849614 core: texture -> mlk_texture
David Demelier <markand@malikania.fr>
parents: 465
diff changeset
215 struct mlk_texture tex;
486
d6757c30658e core: rework errors
David Demelier <markand@malikania.fr>
parents: 483
diff changeset
216 int x, y, err;
140
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
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diff changeset
217 unsigned int w, h;
100
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
218
159
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
219 if (msg->w == 0 || msg->h == 0) {
473
02b16dd49b54 core: trace -> mlk_trace
David Demelier <markand@malikania.fr>
parents: 472
diff changeset
220 mlk_tracef("message has null dimensions");
159
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
221 return;
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
222 }
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David Demelier <markand@malikania.fr>
parents: 158
diff changeset
223
486
d6757c30658e core: rework errors
David Demelier <markand@malikania.fr>
parents: 483
diff changeset
224 if ((err = mlk_texture_new(&tex, msg->w, msg->h)) < 0)
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David Demelier <markand@malikania.fr>
parents: 483
diff changeset
225 mlk_panic(err);
100
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
226
457
04797b35565c core: painter -> mlk_painter
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parents: 451
diff changeset
227 MLK_PAINTER_BEGIN(&tex);
100
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parents: 99
diff changeset
228 draw_frame(msg);
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parents: 99
diff changeset
229 draw_lines(msg);
457
04797b35565c core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents: 451
diff changeset
230 MLK_PAINTER_END();
100
ef9135c34505 message: improve rendering and add example
David Demelier <markand@malikania.fr>
parents: 99
diff changeset
231
ef9135c34505 message: improve rendering and add example
David Demelier <markand@malikania.fr>
parents: 99
diff changeset
232 /* Compute scaling. */
140
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
parents: 136
diff changeset
233 w = msg->w * msg->scale;
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
parents: 136
diff changeset
234 h = msg->h * msg->scale;
100
ef9135c34505 message: improve rendering and add example
David Demelier <markand@malikania.fr>
parents: 99
diff changeset
235
140
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
parents: 136
diff changeset
236 /* Centerize within its drawing area. */
487
f2d3c5a97884 ui: align -> mlk_align
David Demelier <markand@malikania.fr>
parents: 486
diff changeset
237 mlk_align(MLK_ALIGN_CENTER, &x, &y, w, h, msg->x, msg->y, msg->w, msg->h);
100
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
238
140
453651d76f7c core: upgrade message in terms of customization
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parents: 136
diff changeset
239 /* Draw and clear. */
472
bc5483849614 core: texture -> mlk_texture
David Demelier <markand@malikania.fr>
parents: 465
diff changeset
240 mlk_texture_scale(&tex, 0, 0, msg->w, msg->h, x, y, w, h, 0);
bc5483849614 core: texture -> mlk_texture
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parents: 465
diff changeset
241 mlk_texture_finish(&tex);
24
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David Demelier <markand@malikania.fr>
parents:
diff changeset
242 }
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
243
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
244 struct mlk_message_style mlk_message_style = {
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diff changeset
245 .padding = MLK_UI_PADDING,
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diff changeset
246 .delay = MLK_MESSAGE_DELAY_DEFAULT,
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diff changeset
247 .duration = MLK_MESSAGE_DURATION_DEFAULT,
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diff changeset
248 .bg_color = MLK_UI_COLOR_BG,
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diff changeset
249 .border_color = MLK_UI_COLOR_BORDER,
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parents: 505
diff changeset
250 .border_size = MLK_UI_BORDER,
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parents: 505
diff changeset
251 .text_color = MLK_UI_COLOR_TEXT,
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diff changeset
252 .selected_color = MLK_UI_COLOR_SELECTED
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parents: 505
diff changeset
253 };
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
254 struct mlk_message_delegate mlk_message_delegate = {
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diff changeset
255 .query = delegate_query,
88e9bd420a28 rpg: add delegate/style support to mlk_message
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parents: 505
diff changeset
256 .update = delegate_update,
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diff changeset
257 .draw = delegate_draw
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parents: 505
diff changeset
258 };
88e9bd420a28 rpg: add delegate/style support to mlk_message
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parents: 505
diff changeset
259
24
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David Demelier <markand@malikania.fr>
parents:
diff changeset
260 void
534
88e9bd420a28 rpg: add delegate/style support to mlk_message
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diff changeset
261 mlk_message_start(struct mlk_message *msg)
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David Demelier <markand@malikania.fr>
parents: 505
diff changeset
262 {
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
263 assert(msg);
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
264
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
265 const struct mlk_message_style *style = MLK__STYLE(msg, mlk_message_style);
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
266
88e9bd420a28 rpg: add delegate/style support to mlk_message
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parents: 505
diff changeset
267 if ((msg->flags & (MLK_MESSAGE_FLAGS_FADEIN | MLK_MESSAGE_FLAGS_FADEOUT)) && style->delay == 0)
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
268 mlk_tracef("message has animation but zero delay");
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parents: 505
diff changeset
269
88e9bd420a28 rpg: add delegate/style support to mlk_message
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parents: 505
diff changeset
270 msg->elapsed = 0;
88e9bd420a28 rpg: add delegate/style support to mlk_message
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parents: 505
diff changeset
271 msg->scale = msg->flags & MLK_MESSAGE_FLAGS_FADEIN ? 0.0 : 1.0;
88e9bd420a28 rpg: add delegate/style support to mlk_message
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parents: 505
diff changeset
272 msg->state = msg->flags & MLK_MESSAGE_FLAGS_FADEIN
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David Demelier <markand@malikania.fr>
parents: 505
diff changeset
273 ? MLK_MESSAGE_STATE_OPENING
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David Demelier <markand@malikania.fr>
parents: 505
diff changeset
274 : MLK_MESSAGE_STATE_SHOWING;
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
275
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
276 if (msg->flags & MLK_MESSAGE_FLAGS_AUTOMATIC && style->duration == 0)
88e9bd420a28 rpg: add delegate/style support to mlk_message
David Demelier <markand@malikania.fr>
parents: 505
diff changeset
277 mlk_tracef("message is automatic but has zero duration");
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278 }
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279
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280 int
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281 mlk_message_query(const struct mlk_message *msg, unsigned int *w, unsigned int *h)
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282 {
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283 assert(msg);
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284
534
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285 MLK__DELEGATE_INVOKE_RET(msg->delegate, mlk_message_delegate, query, msg, w, h);
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286
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287 if (w)
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288 *w = 0;
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289 if (h)
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290 *h = 0;
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291
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292 return MLK_ERR_NO_SUPPORT;
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293 }
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294
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295 void
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296 mlk_message_handle(struct mlk_message *msg, const union mlk_event *ev)
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297 {
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298 assert(msg);
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299 assert(ev);
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300
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301 /* Skip if the message animation hasn't complete. */
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302 if (msg->state != MLK_MESSAGE_STATE_SHOWING)
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303 return;
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304
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305 /* Only keyboard event are valid. */
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306 if (ev->type != MLK_EVENT_KEYDOWN || msg->state == MLK_MESSAGE_STATE_NONE)
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307 return;
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308
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309 switch (ev->key.key) {
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310 case MLK_KEY_UP:
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311 if (msg->index > 0)
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312 msg->index--;
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313 break;
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314 case MLK_KEY_DOWN:
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315 if (msg->index + 1 < msg->linesz && msg->lines[msg->index + 1])
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316 msg->index++;
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317 break;
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318 case MLK_KEY_ENTER:
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319 msg->state = msg->flags & MLK_MESSAGE_FLAGS_FADEOUT
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320 ? MLK_MESSAGE_STATE_HIDING
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321 : MLK_MESSAGE_STATE_NONE;
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322 msg->elapsed = 0;
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323 break;
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324 default:
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325 break;
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326 }
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327 }
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328
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329 int
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330 mlk_message_update(struct mlk_message *msg, unsigned int ticks)
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331 {
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332 assert(msg);
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333
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334 MLK__DELEGATE_INVOKE(msg->delegate, mlk_message_delegate, update, msg, ticks);
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335
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336 return msg->state == MLK_MESSAGE_STATE_NONE;
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337 }
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338
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339 void
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340 mlk_message_draw(const struct mlk_message *msg)
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341 {
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342 assert(msg);
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343
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344 MLK__DELEGATE_INVOKE(msg->delegate, mlk_message_delegate, draw, msg);
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345 }
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346
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347 void
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348 mlk_message_hide(struct mlk_message *msg)
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349 {
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350 assert(msg);
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351
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352 msg->state = MLK_MESSAGE_STATE_HIDING;
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353 msg->elapsed = 0;
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354 }