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annotate src/events/SDL_windowevents.c @ 5282:8e421890cdb8

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Fixed bug #1117 There's a new event that's always sent when the window changes size, and that event is what the renderers listen for to determine if they need to rebind their context.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 12 Feb 2011 19:02:14 -0800
parents b530ef003506
children
rev   line source
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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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1 /*
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2 SDL - Simple DirectMedia Layer
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b530ef003506 Happy 2011! :)
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3 Copyright (C) 1997-2011 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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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.
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9
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10 This library is distributed in the hope that it will be useful,
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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
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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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"
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28 #include "SDL_mouse_c.h"
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29 #include "../video/SDL_sysvideo.h"
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30
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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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8e421890cdb8 Fixed bug #1117
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38 (event->window.event == SDL_WINDOWEVENT_RESIZED ||
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39 event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED) &&
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40 event->window.windowID == new_event->window.windowID) {
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41 /* We're about to post a new size event, drop the old one */
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42 return 0;
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43 }
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44 return 1;
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45 }
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46
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8c39b82dc7b0 Window move events have the same problem as size events on Windows
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47 static int
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48 RemovePendingMoveEvents(void * userdata, SDL_Event *event)
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49 {
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50 SDL_Event *new_event = (SDL_Event *)userdata;
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51
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52 if (event->type == SDL_WINDOWEVENT &&
8c39b82dc7b0 Window move events have the same problem as size events on Windows
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53 event->window.event == SDL_WINDOWEVENT_MOVED &&
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54 event->window.windowID == new_event->window.windowID) {
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55 /* We're about to post a new move event, drop the old one */
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56 return 0;
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57 }
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58 return 1;
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59 }
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60
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61 int
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62 SDL_SendWindowEvent(SDL_Window * window, Uint8 windowevent, int data1,
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63 int data2)
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64 {
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65 int posted;
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66
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67 if (!window) {
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68 return 0;
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69 }
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70 switch (windowevent) {
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71 case SDL_WINDOWEVENT_SHOWN:
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72 if (window->flags & SDL_WINDOW_SHOWN) {
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73 return 0;
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74 }
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75 window->flags |= SDL_WINDOW_SHOWN;
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76 SDL_OnWindowShown(window);
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77 break;
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78 case SDL_WINDOWEVENT_HIDDEN:
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79 if (!(window->flags & SDL_WINDOW_SHOWN)) {
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80 return 0;
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81 }
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82 window->flags &= ~SDL_WINDOW_SHOWN;
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83 SDL_OnWindowHidden(window);
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84 break;
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85 case SDL_WINDOWEVENT_MOVED:
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86 if (SDL_WINDOWPOS_ISUNDEFINED(data1) ||
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87 SDL_WINDOWPOS_ISUNDEFINED(data2)) {
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88 return 0;
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89 }
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90 if (data1 == window->x && data2 == window->y) {
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91 return 0;
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92 }
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93 window->x = data1;
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94 window->y = data2;
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95 break;
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96 case SDL_WINDOWEVENT_RESIZED:
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97 if (data1 == window->w && data2 == window->h) {
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98 return 0;
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99 }
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100 window->w = data1;
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101 window->h = data2;
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4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface.
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102 SDL_OnWindowResized(window);
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103 break;
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104 case SDL_WINDOWEVENT_MINIMIZED:
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105 if (window->flags & SDL_WINDOW_MINIMIZED) {
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106 return 0;
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107 }
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108 window->flags |= SDL_WINDOW_MINIMIZED;
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109 SDL_OnWindowMinimized(window);
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110 break;
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111 case SDL_WINDOWEVENT_MAXIMIZED:
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112 if (window->flags & SDL_WINDOW_MAXIMIZED) {
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113 return 0;
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114 }
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115 window->flags |= SDL_WINDOW_MAXIMIZED;
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116 break;
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117 case SDL_WINDOWEVENT_RESTORED:
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118 if (!(window->flags & (SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED))) {
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119 return 0;
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120 }
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121 window->flags &= ~(SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED);
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122 SDL_OnWindowRestored(window);
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123 break;
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124 case SDL_WINDOWEVENT_ENTER:
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125 if (window->flags & SDL_WINDOW_MOUSE_FOCUS) {
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126 return 0;
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127 }
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128 window->flags |= SDL_WINDOW_MOUSE_FOCUS;
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129 break;
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130 case SDL_WINDOWEVENT_LEAVE:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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131 if (!(window->flags & SDL_WINDOW_MOUSE_FOCUS)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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132 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
133 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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134 window->flags &= ~SDL_WINDOW_MOUSE_FOCUS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
135 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
136 case SDL_WINDOWEVENT_FOCUS_GAINED:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
137 if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
138 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
diff changeset
140 window->flags |= SDL_WINDOW_INPUT_FOCUS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 SDL_OnWindowFocusGained(window);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 case SDL_WINDOWEVENT_FOCUS_LOST:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 if (!(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 window->flags &= ~SDL_WINDOW_INPUT_FOCUS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148 SDL_OnWindowFocusLost(window);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
151
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
152 /* Post the event, if desired */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 posted = 0;
4429
faa9fc8e7f67 General improvements for user custom event registration
Sam Lantinga <slouken@libsdl.org>
parents: 3697
diff changeset
154 if (SDL_GetEventState(SDL_WINDOWEVENT) == SDL_ENABLE) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 SDL_Event event;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156 event.type = SDL_WINDOWEVENT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 event.window.event = windowevent;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 event.window.data1 = data1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 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.
Sam Lantinga <slouken@libsdl.org>
parents: 3573
diff changeset
160 event.window.windowID = window->id;
3573
41cd18e05965 Fixed bug #666
Sam Lantinga <slouken@libsdl.org>
parents: 3502
diff changeset
161
41cd18e05965 Fixed bug #666
Sam Lantinga <slouken@libsdl.org>
parents: 3502
diff changeset
162 /* Fixes queue overflow with resize events that aren't processed */
41cd18e05965 Fixed bug #666
Sam Lantinga <slouken@libsdl.org>
parents: 3502
diff changeset
163 if (windowevent == SDL_WINDOWEVENT_RESIZED) {
41cd18e05965 Fixed bug #666
Sam Lantinga <slouken@libsdl.org>
parents: 3502
diff changeset
164 SDL_FilterEvents(RemovePendingSizeEvents, &event);
41cd18e05965 Fixed bug #666
Sam Lantinga <slouken@libsdl.org>
parents: 3502
diff changeset
165 }
5042
8c39b82dc7b0 Window move events have the same problem as size events on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 4429
diff changeset
166 if (windowevent == SDL_WINDOWEVENT_MOVED) {
8c39b82dc7b0 Window move events have the same problem as size events on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 4429
diff changeset
167 SDL_FilterEvents(RemovePendingMoveEvents, &event);
8c39b82dc7b0 Window move events have the same problem as size events on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 4429
diff changeset
168 }
3573
41cd18e05965 Fixed bug #666
Sam Lantinga <slouken@libsdl.org>
parents: 3502
diff changeset
169
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170 posted = (SDL_PushEvent(&event) > 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171 }
5115
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
172
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
173 if (windowevent == SDL_WINDOWEVENT_CLOSE) {
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
174 if ( !window->prev && !window->next ) {
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
175 // This is the last window in the list so send the SDL_QUIT event
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
176 SDL_SendQuit();
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
177 }
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
178 }
686d795b1b29 When the last window is closed and the SDL_WINDOWEVENT_CLOSE event is sent, send the SDL_QUIT event.
krogoway
parents: 5042
diff changeset
179
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
180 return (posted);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183 /* vi: set ts=4 sw=4 expandtab: */