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annotate libcore/core/message.c @ 146:7d7ea7a9cf50

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core: add theme_shallow function
author David Demelier <markand@malikania.fr>
date Wed, 14 Oct 2020 18:20:58 +0200
parents 7f1af54bb35a
children
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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 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>
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22
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23 #include "action.h"
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24 #include "event.h"
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25 #include "font.h"
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26 #include "frame.h"
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27 #include "label.h"
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28 #include "maths.h"
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29 #include "message.h"
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30 #include "painter.h"
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31 #include "panic.h"
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32 #include "sprite.h"
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33 #include "texture.h"
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34 #include "theme.h"
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35 #include "trace.h"
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36 #include "util.h"
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37
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38 #define THEME(msg) (msg->theme ? msg->theme : theme_default())
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39
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40 static void
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41 handle(struct action *action, const union event *ev)
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42 {
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43 assert(action);
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44 assert(ev);
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45
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46 message_handle(action->data, ev);
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47 }
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48
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49 static bool
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50 update(struct action *action, unsigned int ticks)
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51 {
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52 assert(action);
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53
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54 return message_update(action->data, ticks);
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55 }
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56
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57 static void
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58 draw(struct action *action)
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59 {
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60 assert(action);
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61
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62 message_draw(action->data);
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63 }
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64
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65 static void
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66 draw_frame(const struct message *msg)
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67 {
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68 assert(msg);
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69
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70 struct frame frame = {
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71 .w = msg->w,
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72 .h = msg->h,
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73 .theme = msg->theme
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74 };
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75
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76 frame_draw(&frame);
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77 }
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78
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79 static void
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80 draw_lines(const struct message *msg)
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81 {
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82 struct theme theme;
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83 unsigned int lineh;
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84
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85 /* Shallow copy theme to modify colors. */
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86 theme_shallow(&theme, msg->theme);
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87
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88 /* Compute text size for list alignment. */
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89 lineh = font_height(theme.fonts[THEME_FONT_INTERFACE]);
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90
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91 for (int i = 0; i < 6; ++i) {
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92 if (!msg->text[i])
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93 continue;
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94
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95 struct label label = {
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96 .y = i * lineh,
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97 .w = msg->w,
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98 .h = msg->h,
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99 .theme = &theme,
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100 .text = msg->text[i],
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101 .align = LABEL_ALIGN_TOP_LEFT,
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102 .flags = LABEL_FLAGS_SHADOW
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103 };
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104
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105 /*
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106 * The function label_draw will use THEME_COLOR_NORMAL to draw
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107 * text and THEME_COLOR_SHADOW so if we have selected a line
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108 * we need to cheat the normal color.
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109 */
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110 if (msg->flags & MESSAGE_FLAGS_QUESTION && msg->index == (unsigned int)i)
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111 theme.colors[THEME_COLOR_NORMAL] = THEME(msg)->colors[THEME_COLOR_SELECTED];
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112 else
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113 theme.colors[THEME_COLOR_NORMAL] = THEME(msg)->colors[THEME_COLOR_NORMAL];
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114
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115 label_draw(&label);
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116 }
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117 }
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118
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119 void
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120 message_start(struct message *msg)
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121 {
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122 assert(msg);
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123
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124 if (msg->flags & (MESSAGE_FLAGS_FADEIN|MESSAGE_FLAGS_FADEOUT))
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125 assert(msg->delay > 0);
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126
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127 msg->elapsed = 0;
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128 msg->scale = msg->flags & MESSAGE_FLAGS_FADEIN ? 0.0 : 1.0;
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129 msg->state = msg->flags & MESSAGE_FLAGS_FADEIN
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130 ? MESSAGE_STATE_OPENING
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131 : MESSAGE_STATE_SHOWING;
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132
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133 if (msg->flags & MESSAGE_FLAGS_AUTOMATIC && msg->timeout == 0)
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134 trace("message is automatic but has zero timeout");
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135 }
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136
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137 void
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138 message_handle(struct message *msg, const union event *ev)
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parents: 62
diff changeset
139 {
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
140 assert(msg);
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
141 assert(ev);
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
142
100
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
143 /* Skip if the message animation hasn't complete. */
140
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
parents: 136
diff changeset
144 if (msg->state != MESSAGE_STATE_SHOWING)
100
ef9135c34505 message: improve rendering and add example
David Demelier <markand@malikania.fr>
parents: 99
diff changeset
145 return;
ef9135c34505 message: improve rendering and add example
David Demelier <markand@malikania.fr>
parents: 99
diff changeset
146
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
147 /* Only keyboard event are valid. */
140
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parents: 136
diff changeset
148 if (ev->type != EVENT_KEYDOWN || msg->state == MESSAGE_STATE_NONE)
64
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David Demelier <markand@malikania.fr>
parents: 62
diff changeset
149 return;
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
150
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
151 switch (ev->key.key) {
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
152 case KEY_UP:
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
153 if (msg->index > 0)
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David Demelier <markand@malikania.fr>
parents: 62
diff changeset
154 msg->index--;
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
155 break;
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
156 case KEY_DOWN:
da9b7462ab92 core: implement question, closes #2464 @2h
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parents: 62
diff changeset
157 if (msg->index < 5 && msg->text[msg->index + 1])
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parents: 62
diff changeset
158 msg->index++;
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David Demelier <markand@malikania.fr>
parents: 62
diff changeset
159 break;
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
160 case KEY_ENTER:
140
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parents: 136
diff changeset
161 msg->state = msg->flags & MESSAGE_FLAGS_FADEOUT
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parents: 136
diff changeset
162 ? MESSAGE_STATE_HIDING
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parents: 136
diff changeset
163 : MESSAGE_STATE_NONE;
64
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parents: 62
diff changeset
164 msg->elapsed = 0;
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
165 break;
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
166 default:
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
167 break;
da9b7462ab92 core: implement question, closes #2464 @2h
David Demelier <markand@malikania.fr>
parents: 62
diff changeset
168 }
24
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David Demelier <markand@malikania.fr>
parents:
diff changeset
169 }
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David Demelier <markand@malikania.fr>
parents:
diff changeset
170
60
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David Demelier <markand@malikania.fr>
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diff changeset
171 bool
46
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diff changeset
172 message_update(struct message *msg, unsigned int ticks)
24
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parents:
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173 {
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David Demelier <markand@malikania.fr>
parents:
diff changeset
174 assert(msg);
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David Demelier <markand@malikania.fr>
parents:
diff changeset
175
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David Demelier <markand@malikania.fr>
parents:
diff changeset
176 msg->elapsed += ticks;
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parents:
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177
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David Demelier <markand@malikania.fr>
parents:
diff changeset
178 switch (msg->state) {
140
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David Demelier <markand@malikania.fr>
parents: 136
diff changeset
179 case MESSAGE_STATE_OPENING:
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parents: 136
diff changeset
180 msg->scale = (double)msg->elapsed / (double)msg->delay;
100
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parents: 99
diff changeset
181
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
182 if (msg->scale > 1)
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parents: 99
diff changeset
183 msg->scale = 1;
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parents: 99
diff changeset
184
140
453651d76f7c core: upgrade message in terms of customization
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diff changeset
185 if (msg->elapsed >= msg->delay) {
453651d76f7c core: upgrade message in terms of customization
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parents: 136
diff changeset
186 msg->state = MESSAGE_STATE_SHOWING;
62
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diff changeset
187 msg->elapsed = 0;
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parents: 60
diff changeset
188 }
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
189
24
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David Demelier <markand@malikania.fr>
parents:
diff changeset
190 break;
140
453651d76f7c core: upgrade message in terms of customization
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parents: 136
diff changeset
191 case MESSAGE_STATE_SHOWING:
24
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parents:
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192 /* Do automatically switch state if requested by the user. */
140
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parents: 136
diff changeset
193 if (msg->flags & MESSAGE_FLAGS_AUTOMATIC && msg->elapsed >= msg->timeout) {
453651d76f7c core: upgrade message in terms of customization
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parents: 136
diff changeset
194 msg->state = msg->flags & MESSAGE_FLAGS_FADEOUT
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parents: 136
diff changeset
195 ? MESSAGE_STATE_HIDING
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diff changeset
196 : MESSAGE_STATE_NONE;
62
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diff changeset
197 msg->elapsed = 0;
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
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diff changeset
198 }
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
199
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
200 break;
140
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
parents: 136
diff changeset
201 case MESSAGE_STATE_HIDING:
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diff changeset
202 msg->scale = 1 - (double)msg->elapsed / (double)msg->delay;
100
ef9135c34505 message: improve rendering and add example
David Demelier <markand@malikania.fr>
parents: 99
diff changeset
203
ef9135c34505 message: improve rendering and add example
David Demelier <markand@malikania.fr>
parents: 99
diff changeset
204 if (msg->scale < 0)
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David Demelier <markand@malikania.fr>
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diff changeset
205 msg->scale = 0;
140
453651d76f7c core: upgrade message in terms of customization
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diff changeset
206 if (msg->elapsed >= msg->delay) {
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diff changeset
207 msg->state = MESSAGE_STATE_NONE;
62
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diff changeset
208 msg->elapsed = 0;
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
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diff changeset
209 }
24
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
210
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
211 break;
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
212 default:
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
213 break;
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
214 }
60
7266c750b649 core: simplify message
David Demelier <markand@malikania.fr>
parents: 59
diff changeset
215
140
453651d76f7c core: upgrade message in terms of customization
David Demelier <markand@malikania.fr>
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diff changeset
216 return msg->state == MESSAGE_STATE_NONE;
99
4ac71ac10c9f core: start adding some UI elements
David Demelier <markand@malikania.fr>
parents: 97
diff changeset
217 }
4ac71ac10c9f core: start adding some UI elements
David Demelier <markand@malikania.fr>
parents: 97
diff changeset
218
24
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David Demelier <markand@malikania.fr>
parents:
diff changeset
219 void
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David Demelier <markand@malikania.fr>
parents:
diff changeset
220 message_draw(struct message *msg)
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David Demelier <markand@malikania.fr>
parents:
diff changeset
221 {
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
222 assert(msg);
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David Demelier <markand@malikania.fr>
parents:
diff changeset
223
100
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parents: 99
diff changeset
224 struct texture tex;
140
453651d76f7c core: upgrade message in terms of customization
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diff changeset
225 int x, y;
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diff changeset
226 unsigned int w, h;
100
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diff changeset
227
140
453651d76f7c core: upgrade message in terms of customization
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diff changeset
228 if (!texture_new(&tex, msg->w, msg->h))
100
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parents: 99
diff changeset
229 panic();
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David Demelier <markand@malikania.fr>
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diff changeset
230
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
231 PAINTER_BEGIN(&tex);
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parents: 99
diff changeset
232 draw_frame(msg);
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
233 draw_lines(msg);
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parents: 99
diff changeset
234 PAINTER_END();
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parents: 99
diff changeset
235
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David Demelier <markand@malikania.fr>
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diff changeset
236 /* Compute scaling. */
140
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diff changeset
237 w = msg->w * msg->scale;
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diff changeset
238 h = msg->h * msg->scale;
100
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parents: 99
diff changeset
239
140
453651d76f7c core: upgrade message in terms of customization
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parents: 136
diff changeset
240 /* Centerize within its drawing area. */
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parents: 136
diff changeset
241 maths_centerize(&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
242
140
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David Demelier <markand@malikania.fr>
parents: 136
diff changeset
243 /* Draw and clear. */
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David Demelier <markand@malikania.fr>
parents: 136
diff changeset
244 texture_scale(&tex, 0, 0, msg->w, msg->h, x, y, w, h, 0);
100
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David Demelier <markand@malikania.fr>
parents: 99
diff changeset
245 texture_finish(&tex);
24
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David Demelier <markand@malikania.fr>
parents:
diff changeset
246 }
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
247
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
248 void
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David Demelier <markand@malikania.fr>
parents:
diff changeset
249 message_hide(struct message *msg)
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David Demelier <markand@malikania.fr>
parents:
diff changeset
250 {
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
251 assert(msg);
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
252
140
453651d76f7c core: upgrade message in terms of customization
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parents: 136
diff changeset
253 msg->state = MESSAGE_STATE_HIDING;
24
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parents:
diff changeset
254 msg->elapsed = 0;
4a06503641eb core: start basic implementation of dialog, continue #2449 @2h
David Demelier <markand@malikania.fr>
parents:
diff changeset
255 }
62
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
256
d07acc6ee4d9 core: improve message
David Demelier <markand@malikania.fr>
parents: 60
diff changeset
257 void
136
30b68089ae70 core: rework actions and a bit of drawables, closes #2492
David Demelier <markand@malikania.fr>
parents: 135
diff changeset
258 message_action(struct message *msg, struct action *action)
67
7187c0d9b9c0 core: implement message action, closes #2467
David Demelier <markand@malikania.fr>
parents: 65
diff changeset
259 {
7187c0d9b9c0 core: implement message action, closes #2467
David Demelier <markand@malikania.fr>
parents: 65
diff changeset
260 assert(msg);
7187c0d9b9c0 core: implement message action, closes #2467
David Demelier <markand@malikania.fr>
parents: 65
diff changeset
261 assert(action);
7187c0d9b9c0 core: implement message action, closes #2467
David Demelier <markand@malikania.fr>
parents: 65
diff changeset
262
7187c0d9b9c0 core: implement message action, closes #2467
David Demelier <markand@malikania.fr>
parents: 65
diff changeset
263 memset(action, 0, sizeof (struct action));
136
30b68089ae70 core: rework actions and a bit of drawables, closes #2492
David Demelier <markand@malikania.fr>
parents: 135
diff changeset
264 action->data = msg;
30b68089ae70 core: rework actions and a bit of drawables, closes #2492
David Demelier <markand@malikania.fr>
parents: 135
diff changeset
265 action->handle = handle;
30b68089ae70 core: rework actions and a bit of drawables, closes #2492
David Demelier <markand@malikania.fr>
parents: 135
diff changeset
266 action->update = update;
30b68089ae70 core: rework actions and a bit of drawables, closes #2492
David Demelier <markand@malikania.fr>
parents: 135
diff changeset
267 action->draw = draw;
30b68089ae70 core: rework actions and a bit of drawables, closes #2492
David Demelier <markand@malikania.fr>
parents: 135
diff changeset
268
30b68089ae70 core: rework actions and a bit of drawables, closes #2492
David Demelier <markand@malikania.fr>
parents: 135
diff changeset
269 message_start(msg);
67
7187c0d9b9c0 core: implement message action, closes #2467
David Demelier <markand@malikania.fr>
parents: 65
diff changeset
270 }