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annotate src/events/SDL_windowevents.c @ 3689:af25b5586af7

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Fixed crash when there was no mouse focus for some reason (iPhone bug?)
author Sam Lantinga <slouken@libsdl.org>
date Thu, 21 Jan 2010 16:11:55 +0000
parents 64ce267332c6
children f7b03b6838cb
rev   line source
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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1 /*
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2 SDL - Simple DirectMedia Layer
2859
99210400e8b9 Updated copyright date
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3 Copyright (C) 1997-2009 Sam Lantinga
1895
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4
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5 This library is free software; you can redistribute it and/or
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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6 modify it under the terms of the GNU Lesser General Public
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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7 License as published by the Free Software Foundation; either
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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8 version 2.1 of the License, or (at your option) any later version.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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9
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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10 This library is distributed in the hope that it will be useful,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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13 Lesser General Public License for more details.
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14
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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15 You should have received a copy of the GNU Lesser General Public
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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16 License along with this library; if not, write to the Free Software
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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19 Sam Lantinga
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* Window event handling code for SDL */
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25
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26 #include "SDL_events.h"
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27 #include "SDL_events_c.h"
2794
f7872b7a8732 Fixed mouse coordinate range on Mac OS X
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28 #include "SDL_mouse_c.h"
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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29 #include "../video/SDL_sysvideo.h"
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30
3573
41cd18e05965 Fixed bug #666
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31
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32 static int
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33 RemovePendingSizeEvents(void * userdata, SDL_Event *event)
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34 {
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35 SDL_Event *new_event = (SDL_Event *)userdata;
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36
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37 if (event->type == SDL_WINDOWEVENT &&
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38 event->window.event == SDL_WINDOWEVENT_RESIZED &&
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39 event->window.windowID == new_event->window.windowID) {
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40 /* We're about to post a new size event, drop the old one */
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41 return 0;
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42 }
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43 return 1;
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44 }
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45
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46 int
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64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
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47 SDL_SendWindowEvent(SDL_Window * window, Uint8 windowevent, int data1,
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48 int data2)
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49 {
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50 int posted;
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51
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52 if (!window) {
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53 return 0;
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54 }
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55 switch (windowevent) {
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56 case SDL_WINDOWEVENT_SHOWN:
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57 if (window->flags & SDL_WINDOW_SHOWN) {
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58 return 0;
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59 }
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60 window->flags |= SDL_WINDOW_SHOWN;
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61 SDL_OnWindowShown(window);
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62 break;
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63 case SDL_WINDOWEVENT_HIDDEN:
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64 if (!(window->flags & SDL_WINDOW_SHOWN)) {
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65 return 0;
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66 }
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67 window->flags &= ~SDL_WINDOW_SHOWN;
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68 SDL_OnWindowHidden(window);
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69 break;
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70 case SDL_WINDOWEVENT_MOVED:
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71 if (window->flags & SDL_WINDOW_FULLSCREEN) {
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72 return 0;
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73 }
2875
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74 if (data1 == SDL_WINDOWPOS_UNDEFINED) {
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75 data1 = window->x;
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76 }
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77 if (data2 == SDL_WINDOWPOS_UNDEFINED) {
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78 data2 = window->y;
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79 }
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80 if (data1 == window->x && data2 == window->y) {
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81 return 0;
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82 }
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83 window->x = data1;
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84 window->y = data2;
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85 break;
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86 case SDL_WINDOWEVENT_RESIZED:
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87 if (window->flags & SDL_WINDOW_FULLSCREEN) {
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88 return 0;
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89 }
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90 if (data1 == window->w && data2 == window->h) {
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91 return 0;
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92 }
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93 window->w = data1;
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94 window->h = data2;
1970
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
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95 SDL_OnWindowResized(window);
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96 break;
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97 case SDL_WINDOWEVENT_MINIMIZED:
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98 if (window->flags & SDL_WINDOW_MINIMIZED) {
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99 return 0;
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100 }
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101 window->flags |= SDL_WINDOW_MINIMIZED;
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98a819296cdc Whenever a window becomes fullscreen, shown, unminimized, and has input focus it will change the display to the corresponding fullscreen video mode.
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102 SDL_OnWindowMinimized(window);
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103 break;
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104 case SDL_WINDOWEVENT_MAXIMIZED:
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105 if (window->flags & SDL_WINDOW_MAXIMIZED) {
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106 return 0;
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107 }
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108 window->flags |= SDL_WINDOW_MAXIMIZED;
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109 break;
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110 case SDL_WINDOWEVENT_RESTORED:
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111 if (!(window->flags & (SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED))) {
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112 return 0;
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113 }
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114 window->flags &= ~(SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED);
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115 SDL_OnWindowRestored(window);
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116 break;
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117 case SDL_WINDOWEVENT_ENTER:
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118 if (window->flags & SDL_WINDOW_MOUSE_FOCUS) {
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119 return 0;
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120 }
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121 window->flags |= SDL_WINDOW_MOUSE_FOCUS;
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122 break;
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123 case SDL_WINDOWEVENT_LEAVE:
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124 if (!(window->flags & SDL_WINDOW_MOUSE_FOCUS)) {
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125 return 0;
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126 }
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127 window->flags &= ~SDL_WINDOW_MOUSE_FOCUS;
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128 break;
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129 case SDL_WINDOWEVENT_FOCUS_GAINED:
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130 if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
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131 return 0;
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132 }
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133 window->flags |= SDL_WINDOW_INPUT_FOCUS;
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134 SDL_OnWindowFocusGained(window);
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135 break;
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136 case SDL_WINDOWEVENT_FOCUS_LOST:
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137 if (!(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
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138 return 0;
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139 }
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140 window->flags &= ~SDL_WINDOW_INPUT_FOCUS;
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141 SDL_OnWindowFocusLost(window);
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142 break;
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143 }
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144
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145 /* Post the event, if desired */
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146 posted = 0;
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147 if (SDL_ProcessEvents[SDL_WINDOWEVENT] == SDL_ENABLE) {
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148 SDL_Event event;
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149 event.type = SDL_WINDOWEVENT;
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150 event.window.event = windowevent;
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151 event.window.data1 = data1;
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152 event.window.data2 = data2;
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
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153 event.window.windowID = window->id;
3573
41cd18e05965 Fixed bug #666
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154
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155 /* Fixes queue overflow with resize events that aren't processed */
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156 if (windowevent == SDL_WINDOWEVENT_RESIZED) {
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157 SDL_FilterEvents(RemovePendingSizeEvents, &event);
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158 }
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159
1895
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160 posted = (SDL_PushEvent(&event) > 0);
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161 }
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162 return (posted);
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163 }
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164
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165 /* vi: set ts=4 sw=4 expandtab: */