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annotate src/events/SDL_windowevents.c @ 1722:5daa04d862f1 SDL-1.3

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Added a userdata parameter for event filters. Added a function to filter the existing queued events. Added explicit support for relative mouse mode to the API.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 30 Jun 2006 08:18:44 +0000
parents 4da1ee79c9af
children 6c63fc2bd986
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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
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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
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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 "../video/SDL_sysvideo.h"
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29
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30 int
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31 SDL_PrivateWindowEvent(SDL_WindowID windowID, Uint8 windowevent, int data1,
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32 int data2)
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33 {
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34 int posted;
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35 SDL_Window *window;
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36
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37 window = SDL_GetWindowFromID(windowID);
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38 if (!window) {
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39 return 0;
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40 }
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41 switch (windowevent) {
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42 case SDL_WINDOWEVENT_SHOWN:
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43 if (window->flags & SDL_WINDOW_SHOWN) {
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44 return 0;
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45 }
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46 window->flags |= SDL_WINDOW_SHOWN;
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47 break;
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48 case SDL_WINDOWEVENT_HIDDEN:
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49 if (!(window->flags & SDL_WINDOW_SHOWN)) {
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50 return 0;
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51 }
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52 window->flags &= ~SDL_WINDOW_SHOWN;
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53 break;
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54 case SDL_WINDOWEVENT_MINIMIZED:
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55 if (window->flags & SDL_WINDOW_MINIMIZED) {
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56 return 0;
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57 }
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58 window->flags |= SDL_WINDOW_MINIMIZED;
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59 break;
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60 case SDL_WINDOWEVENT_MAXIMIZED:
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61 if (window->flags & SDL_WINDOW_MAXIMIZED) {
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62 return 0;
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63 }
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64 window->flags |= SDL_WINDOW_MAXIMIZED;
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65 break;
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66 case SDL_WINDOWEVENT_RESTORED:
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67 if (!(window->flags & (SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED))) {
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68 return 0;
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69 }
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70 window->flags &= ~(SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED);
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71 break;
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72 case SDL_WINDOWEVENT_ENTER:
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73 if (window->flags & SDL_WINDOW_MOUSE_FOCUS) {
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74 return 0;
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75 }
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76 window->flags |= SDL_WINDOW_MOUSE_FOCUS;
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77 break;
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78 case SDL_WINDOWEVENT_LEAVE:
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79 if (!(window->flags & SDL_WINDOW_MOUSE_FOCUS)) {
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80 return 0;
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81 }
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82 window->flags &= ~SDL_WINDOW_MOUSE_FOCUS;
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83 break;
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84 case SDL_WINDOWEVENT_FOCUS_GAINED:
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85 if (window->flags & SDL_WINDOW_KEYBOARD_FOCUS) {
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86 return 0;
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87 }
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88 window->flags |= SDL_WINDOW_KEYBOARD_FOCUS;
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89 break;
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90 case SDL_WINDOWEVENT_FOCUS_LOST:
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91 if (!(window->flags & SDL_WINDOW_KEYBOARD_FOCUS)) {
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92 return 0;
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93 }
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94 window->flags &= ~SDL_WINDOW_KEYBOARD_FOCUS;
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95 break;
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96 }
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97
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98 /* Post the event, if desired */
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99 posted = 0;
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100 if (SDL_ProcessEvents[SDL_WINDOWEVENT] == SDL_ENABLE) {
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101 SDL_Event event;
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102 event.type = SDL_WINDOWEVENT;
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103 event.window.event = windowevent;
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104 event.window.data1 = data1;
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105 event.window.data2 = data2;
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106 event.window.windowID = windowID;
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107 if ((SDL_EventOK == NULL)
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108 || (*SDL_EventOK) (SDL_EventOKParam, &event)) {
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109 posted = 1;
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110 SDL_PushEvent(&event);
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111 }
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112 }
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113 return (posted);
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114 }
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115
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116 /* vi: set ts=4 sw=4 expandtab: */