Mercurial > hg > orthanc-stone

annotate Applications/Generic/GuiAdapter.h @ 1341:d80a3e3cc800 broker

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dummy fixes
author Benjamin Golinvaux <bgo@osimis.io>
date Fri, 03 Apr 2020 18:18:37 +0200
parents cbfdba08e039
children 28eb7106ef44
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20 #pragma once
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21
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22 #include <string>
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23
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24 #if ORTHANC_ENABLE_WASM != 1
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25 # ifdef __EMSCRIPTEN__
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26 # error __EMSCRIPTEN__ is defined and ORTHANC_ENABLE_WASM != 1
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27 # endif
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28 #endif
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29
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30 #if ORTHANC_ENABLE_WASM == 1
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31 # ifndef __EMSCRIPTEN__
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32 # error __EMSCRIPTEN__ is not defined and ORTHANC_ENABLE_WASM == 1
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33 # endif
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34 #endif
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35
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36 #if ORTHANC_ENABLE_WASM == 1
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37 # include <emscripten/html5.h>
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38 #else
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39 # if ORTHANC_ENABLE_SDL == 1
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40 # include <SDL.h>
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41 # endif
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42 #endif
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43
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44 #include "../../Framework/StoneException.h"
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45
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46 #if ORTHANC_ENABLE_THREADS == 1
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47 # include "../../Framework/Deprecated/Messages/LockingEmitter.h"
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48 #endif
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49
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50 #include <vector>
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51 #include <boost/shared_ptr.hpp>
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52 #include <boost/weak_ptr.hpp>
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53
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54 namespace OrthancStone
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55 {
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56 #if ORTHANC_ENABLE_SDL == 1
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57 class SdlViewport;
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58 #endif
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59
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60 #if 0
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61
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62 /**
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63 This interface is used to store the widgets that are controlled by the
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64 GuiAdapter and receive event callbacks.
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65 The callbacks may possibly be downcast (using dynamic_cast, for safety) \
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66 to the actual widget type
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67 */
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68 class IGuiAdapterWidget
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69 {
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70 public:
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71 virtual ~IGuiAdapterWidget() {}
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72
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73 #if #if ORTHANC_ENABLE_SDL == 1
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74 /**
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75 Returns the SdlViewport that this widget contains. If the underlying
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76 viewport type is *not* SDL, then an error is returned.
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77 */
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78 virtual SdlViewport& GetSdlViewport() = 0;
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79 #endif
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80 };
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81
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82 #endif
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83
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84 enum GuiAdapterMouseButtonType
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85 {
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86 GUIADAPTER_MOUSEBUTTON_LEFT = 0,
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87 GUIADAPTER_MOUSEBUTTON_MIDDLE = 1,
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88 GUIADAPTER_MOUSEBUTTON_RIGHT = 2
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89 };
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90
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91
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92 enum GuiAdapterHidEventType
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93 {
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94 GUIADAPTER_EVENT_MOUSEDOWN = 1973,
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95 GUIADAPTER_EVENT_MOUSEMOVE = 1974,
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96 GUIADAPTER_EVENT_MOUSEDBLCLICK = 1975,
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97 GUIADAPTER_EVENT_MOUSEUP = 1976,
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98 GUIADAPTER_EVENT_WHEEL = 1977,
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99 GUIADAPTER_EVENT_KEYDOWN = 1978,
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100 GUIADAPTER_EVENT_KEYUP = 1979,
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101 };
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102
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103 const unsigned int GUIADAPTER_DELTA_PIXEL = 2973;
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104 const unsigned int GUIADAPTER_DELTA_LINE = 2974;
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105 const unsigned int GUIADAPTER_DELTA_PAGE = 2975;
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106
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107 struct GuiAdapterUiEvent;
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108 struct GuiAdapterMouseEvent;
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109 struct GuiAdapterWheelEvent;
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110 struct GuiAdapterKeyboardEvent;
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111
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112 #if 1
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113 typedef bool (*OnMouseEventFunc) (std::string canvasId, const GuiAdapterMouseEvent* mouseEvent, void* userData);
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114 typedef bool (*OnMouseWheelFunc) (std::string canvasId, const GuiAdapterWheelEvent* wheelEvent, void* userData);
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115 typedef bool (*OnKeyDownFunc) (std::string canvasId, const GuiAdapterKeyboardEvent* keyEvent, void* userData);
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116 typedef bool (*OnKeyUpFunc) (std::string canvasId, const GuiAdapterKeyboardEvent* keyEvent, void* userData);
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117 typedef bool (*OnAnimationFrameFunc)(double time, void* userData);
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119 #if ORTHANC_ENABLE_SDL == 1
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120 typedef bool (*OnSdlEventCallback) (std::string canvasId, const SDL_Event& sdlEvent, void* userData);
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121
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122 typedef bool (*OnSdlWindowResizeFunc)(std::string canvasId,
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123 const GuiAdapterUiEvent* uiEvent,
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124 unsigned int width,
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125 unsigned int height,
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126 void* userData);
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127
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128
1312
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129 #endif
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130
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131 #else
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132
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133 #if ORTHANC_ENABLE_WASM == 1
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134 typedef EM_BOOL (*OnMouseEventFunc)(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
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135 typedef EM_BOOL (*OnMouseWheelFunc)(int eventType, const EmscriptenWheelEvent* wheelEvent, void* userData);
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136 typedef EM_BOOL (*OnKeyDownFunc) (int eventType, const EmscriptenKeyboardEvent* keyEvent, void* userData);
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137 typedef EM_BOOL (*OnKeyUpFunc) (int eventType, const EmscriptenKeyboardEvent* keyEvent, void* userData);
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138
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139 typedef EM_BOOL (*OnAnimationFrameFunc)(double time, void* userData);
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140 typedef EM_BOOL (*OnWindowResizeFunc)(int eventType, const EmscriptenUiEvent* uiEvent, void* userData);
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141 #else
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142 typedef bool (*OnMouseEventFunc)(int eventType, const SDL_Event* mouseEvent, void* userData);
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143 typedef bool (*OnMouseWheelFunc)(int eventType, const SDL_Event* wheelEvent, void* userData);
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144 typedef bool (*OnKeyDownFunc) (int eventType, const SDL_Event* keyEvent, void* userData);
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145 typedef bool (*OnKeyUpFunc) (int eventType, const SDL_Event* keyEvent, void* userData);
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146
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147 typedef bool (*OnAnimationFrameFunc)(double time, void* userData);
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148 typedef bool (*OnWindowResizeFunc)(int eventType, const GuiAdapterUiEvent* uiEvent, void* userData);
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149 #endif
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150
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151 #endif
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152 struct GuiAdapterMouseEvent
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153 {
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154 GuiAdapterHidEventType type;
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155 //double timestamp;
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156 //long screenX;
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157 //long screenY;
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158 //long clientX;
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159 //long clientY;
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160 bool ctrlKey;
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161 bool shiftKey;
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162 bool altKey;
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163 //bool metaKey;
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164 unsigned short button;
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165 //unsigned short buttons;
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166 //long movementX;
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167 //long movementY;
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168 long targetX;
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169 long targetY;
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170 // canvasX and canvasY are deprecated - there no longer exists a Module['canvas'] object, so canvasX/Y are no longer reported (register a listener on canvas directly to get canvas coordinates, or translate manually)
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171 //long canvasX;
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172 //long canvasY;
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173 //long padding;
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174
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175 public:
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176 GuiAdapterMouseEvent()
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177 : ctrlKey(false),
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178 shiftKey(false),
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179 altKey(false)
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180 {
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181 }
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182 };
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183
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184 struct GuiAdapterWheelEvent {
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185 GuiAdapterMouseEvent mouse;
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186 double deltaX;
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187 double deltaY;
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188 unsigned long deltaMode;
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189 };
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190
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191 // we don't use any data now
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192 struct GuiAdapterUiEvent {};
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193
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194 // EmscriptenKeyboardEvent
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195 struct GuiAdapterKeyboardEvent
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196 {
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197 GuiAdapterHidEventType type;
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198 char sym[32];
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199 bool ctrlKey;
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200 bool shiftKey;
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201 bool altKey;
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202 };
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203
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204 std::ostream& operator<<(std::ostream& os, const GuiAdapterKeyboardEvent& event);
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205
843
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206 /*
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207 Mousedown event trigger when either the left or right (or middle) mouse is pressed
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208 on the object;
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209
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210 Mouseup event trigger when either the left or right (or middle) mouse is released
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211 above the object after triggered mousedown event and held.
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212
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213 Click event trigger when the only left mouse button is pressed and released on the
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214 same object, requires the Mousedown and Mouseup event happened before Click event.
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215
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216 The normal expect trigger order: onMousedown >> onMouseup >> onClick
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217
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218 Testing in Chrome v58, the time between onMouseup and onClick events are around
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219 7ms to 15ms
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220
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221 FROM: https://codingrepo.com/javascript/2017/05/19/javascript-difference-mousedown-mouseup-click-events/
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222 */
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223 #if ORTHANC_ENABLE_WASM == 1
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224 void ConvertFromPlatform(GuiAdapterUiEvent& dest, int eventType, const EmscriptenUiEvent& src);
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225
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226 void ConvertFromPlatform(GuiAdapterMouseEvent& dest, int eventType, const EmscriptenMouseEvent& src);
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227
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228 void ConvertFromPlatform(GuiAdapterWheelEvent& dest, int eventType, const EmscriptenWheelEvent& src);
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229
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230 void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const EmscriptenKeyboardEvent& src);
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231 #else
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232
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233 # if ORTHANC_ENABLE_SDL == 1
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234 void ConvertFromPlatform(GuiAdapterMouseEvent& dest, bool ctrlPressed, bool shiftPressed, bool altPressed, const SDL_Event& source);
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235
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236 void ConvertFromPlatform(GuiAdapterWheelEvent& dest, bool ctrlPressed, bool shiftPressed, bool altPressed, const SDL_Event& source);
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237
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238 void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const SDL_Event& source);
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239
843
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240 # endif
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241
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242 #endif
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243
937
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244 typedef void (*GuiAdapterRunFunc)(void*);
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245
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246 class GuiAdapter
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247 {
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248 public:
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249 GuiAdapter()
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250 {
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251 static int instanceCount = 0;
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252 ORTHANC_ASSERT(instanceCount == 0);
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253 instanceCount = 1;
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254 }
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255
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256 /**
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257 emscripten_set_resize_callback("#window", NULL, false, OnWindowResize);
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258
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259 emscripten_set_wheel_callback("mycanvas1", widget1_.get(), false, OnXXXMouseWheel);
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260 emscripten_set_wheel_callback("mycanvas2", widget2_.get(), false, OnXXXMouseWheel);
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261 emscripten_set_wheel_callback("mycanvas3", widget3_.get(), false, OnXXXMouseWheel);
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262
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263 emscripten_set_keydown_callback("#window", NULL, false, OnKeyDown);
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264 emscripten_set_keyup_callback("#window", NULL, false, OnKeyUp);
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265
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266 emscripten_request_animation_frame_loop(OnAnimationFrame, NULL);
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267
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268 SDL:
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269 see https://wiki.libsdl.org/SDL_CaptureMouse
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270
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271 */
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272
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273 void SetMouseDownCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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274 void SetMouseDblClickCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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275 void SetMouseMoveCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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276 void SetMouseUpCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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277 void SetWheelCallback (std::string canvasId, void* userData, bool capture, OnMouseWheelFunc func);
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278 void SetKeyDownCallback (std::string canvasId, void* userData, bool capture, OnKeyDownFunc func);
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279 void SetKeyUpCallback (std::string canvasId, void* userData, bool capture, OnKeyUpFunc func);
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280
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281 #if ORTHANC_ENABLE_SDL == 1
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282
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283 void SetGenericSdlEventCallback (std::string canvasId, void* userData, bool capture, OnSdlEventCallback func);
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284
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285 typedef bool (*OnSdlEventCallback) (std::string canvasId, const SDL_Event& sdlEvent, void* userData);
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286
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287 // if you pass "#window", then any Window resize will trigger the callback
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288 void SetSdlResizeCallback(std::string canvasId,
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289 void* userData,
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290 bool capture,
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291 OnSdlWindowResizeFunc func);
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292 #endif
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293
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294 void RequestAnimationFrame(OnAnimationFrameFunc func, void* userData);
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295
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296 // TODO: implement and call to remove canvases [in SDL, although code should be generic]
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297 void SetOnExitCallback();
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298
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299 /**
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300 Under SDL, this function does NOT return until all windows have been closed.
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301 Under wasm, it returns without doing anything, since the event loop is managed
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302 by the browser.
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303 */
937
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304 void Run(GuiAdapterRunFunc func = NULL, void* cookie = NULL);
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305
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306 private:
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307
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308 #if ORTHANC_ENABLE_SDL == 1
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309 /**
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310 Gives observers a chance to react based on generic event handlers. This
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311 is used, for instance, when the viewport lock interface is invalidated.
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312 */
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313 void OnSdlGenericEvent(const SDL_Event& sdlEvent);
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314 #endif
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315
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316 /**
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317 In SDL, this executes all the registered headers
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318 */
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319 void OnAnimationFrame();
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320
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321 //void RequestAnimationFrame(OnAnimationFrameFunc func, void* userData);
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322 std::vector<std::pair<OnAnimationFrameFunc, void*> >
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323 animationFrameHandlers_;
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324
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325 void OnResize(unsigned int width, unsigned int height);
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326
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327 #if ORTHANC_ENABLE_SDL == 1
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328 template<typename Func>
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329 struct EventHandlerData
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330 {
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331 EventHandlerData(std::string canvasName, Func func, void* userData)
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332 : canvasName(canvasName)
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333 , func(func)
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334 , userData(userData)
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335 {
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336 }
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337
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338 std::string canvasName;
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339 Func func;
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340 void* userData;
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341 };
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342 std::vector<EventHandlerData<OnSdlWindowResizeFunc> > resizeHandlers_;
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343 std::vector<EventHandlerData<OnMouseEventFunc > > mouseDownHandlers_;
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344 std::vector<EventHandlerData<OnMouseEventFunc > > mouseDblCickHandlers_;
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345 std::vector<EventHandlerData<OnMouseEventFunc > > mouseMoveHandlers_;
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346 std::vector<EventHandlerData<OnMouseEventFunc > > mouseUpHandlers_;
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347 std::vector<EventHandlerData<OnMouseWheelFunc > > mouseWheelHandlers_;
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348 std::vector<EventHandlerData<OnKeyDownFunc > > keyDownHandlers_;
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349 std::vector<EventHandlerData<OnKeyUpFunc > > keyUpHandlers_;
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350 std::vector<EventHandlerData<OnSdlEventCallback > > sdlEventHandlers_;
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351
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352 /**
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353 This executes all the registered headers if needed (in wasm, the browser
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354 deals with this)
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355 */
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356 void OnMouseEvent(uint32_t windowID, const GuiAdapterMouseEvent& event);
861
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357
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358 void OnKeyboardEvent(uint32_t windowID, const GuiAdapterKeyboardEvent& event);
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359
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360 /**
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361 Same remark as OnMouseEvent
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362 */
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363 void OnMouseWheelEvent(uint32_t windowID, const GuiAdapterWheelEvent& event);
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364
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365 #endif
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366
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367 /**
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368 This executes all the registered headers if needed (in wasm, the browser
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369 deals with this)
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370 */
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371 void ViewportsUpdateSize();
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372 };
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373 }