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annotate Applications/Generic/GuiAdapter.h @ 1097:4383382db01d broker

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deprecating LockingEmitter
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 24 Oct 2019 22:31:18 +0200
parents ac88989817e3
children 05d05cba0f4f
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843
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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) 2017-2019 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/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
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57 /**
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58 This interface is used to store the widgets that are controlled by the
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59 GuiAdapter and receive event callbacks.
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60 The callbacks may possibly be downcast (using dynamic_cast, for safety) \
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61 to the actual widget type
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62 */
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63 class IGuiAdapterWidget
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64 {
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65 public:
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66 virtual ~IGuiAdapterWidget() {}
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67
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68 };
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69
879
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70 enum GuiAdapterMouseButtonType
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71 {
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72 GUIADAPTER_MOUSEBUTTON_LEFT = 0,
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73 GUIADAPTER_MOUSEBUTTON_MIDDLE = 1,
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74 GUIADAPTER_MOUSEBUTTON_RIGHT = 2
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75 };
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76
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77
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78 enum GuiAdapterHidEventType
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79 {
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80 GUIADAPTER_EVENT_MOUSEDOWN = 1973,
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81 GUIADAPTER_EVENT_MOUSEMOVE = 1974,
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82 GUIADAPTER_EVENT_MOUSEDBLCLICK = 1975,
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83 GUIADAPTER_EVENT_MOUSEUP = 1976,
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84 GUIADAPTER_EVENT_WHEEL = 1977,
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85 GUIADAPTER_EVENT_KEYDOWN = 1978,
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86 GUIADAPTER_EVENT_KEYUP = 1979,
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87 };
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88
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89 const unsigned int GUIADAPTER_DELTA_PIXEL = 2973;
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90 const unsigned int GUIADAPTER_DELTA_LINE = 2974;
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91 const unsigned int GUIADAPTER_DELTA_PAGE = 2975;
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92
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93 struct GuiAdapterUiEvent;
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94 struct GuiAdapterMouseEvent;
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95 struct GuiAdapterWheelEvent;
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96 struct GuiAdapterKeyboardEvent;
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97
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98 namespace Deprecated
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99 {
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100 class LockingEmitter;
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101 }
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102
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103 #if 1
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104 typedef bool (*OnMouseEventFunc)(std::string canvasId, const GuiAdapterMouseEvent* mouseEvent, void* userData);
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105 typedef bool (*OnMouseWheelFunc)(std::string canvasId, const GuiAdapterWheelEvent* wheelEvent, void* userData);
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106 typedef bool (*OnKeyDownFunc) (std::string canvasId, const GuiAdapterKeyboardEvent* keyEvent, void* userData);
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107 typedef bool (*OnKeyUpFunc) (std::string canvasId, const GuiAdapterKeyboardEvent* keyEvent, void* userData);
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108
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109 typedef bool (*OnAnimationFrameFunc)(double time, void* userData);
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110 typedef bool (*OnWindowResizeFunc)(std::string canvasId, const GuiAdapterUiEvent* uiEvent, void* userData);
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111
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112 #else
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113
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114 #if ORTHANC_ENABLE_WASM == 1
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115 typedef EM_BOOL (*OnMouseEventFunc)(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
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116 typedef EM_BOOL (*OnMouseWheelFunc)(int eventType, const EmscriptenWheelEvent* wheelEvent, void* userData);
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117 typedef EM_BOOL (*OnKeyDownFunc) (int eventType, const EmscriptenKeyboardEvent* keyEvent, void* userData);
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118 typedef EM_BOOL (*OnKeyUpFunc) (int eventType, const EmscriptenKeyboardEvent* keyEvent, void* userData);
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119
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120 typedef EM_BOOL (*OnAnimationFrameFunc)(double time, void* userData);
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121 typedef EM_BOOL (*OnWindowResizeFunc)(int eventType, const EmscriptenUiEvent* uiEvent, void* userData);
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122 #else
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123 typedef bool (*OnMouseEventFunc)(int eventType, const SDL_Event* mouseEvent, void* userData);
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124 typedef bool (*OnMouseWheelFunc)(int eventType, const SDL_Event* wheelEvent, void* userData);
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125 typedef bool (*OnKeyDownFunc) (int eventType, const SDL_Event* keyEvent, void* userData);
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126 typedef bool (*OnKeyUpFunc) (int eventType, const SDL_Event* keyEvent, void* userData);
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127
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128 typedef bool (*OnAnimationFrameFunc)(double time, void* userData);
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129 typedef bool (*OnWindowResizeFunc)(int eventType, const GuiAdapterUiEvent* uiEvent, void* userData);
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130 #endif
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131
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132 #endif
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133 struct GuiAdapterMouseEvent
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134 {
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135 GuiAdapterHidEventType type;
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136 //double timestamp;
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137 //long screenX;
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138 //long screenY;
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139 //long clientX;
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140 //long clientY;
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141 bool ctrlKey;
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142 bool shiftKey;
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143 bool altKey;
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144 //bool metaKey;
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145 unsigned short button;
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146 //unsigned short buttons;
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147 //long movementX;
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148 //long movementY;
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149 long targetX;
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150 long targetY;
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151 // 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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152 //long canvasX;
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153 //long canvasY;
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154 //long padding;
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155
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156 public:
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157 GuiAdapterMouseEvent()
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158 : ctrlKey(false),
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159 shiftKey(false),
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160 altKey(false)
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161 {
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162 }
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163 };
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164
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165 struct GuiAdapterWheelEvent {
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166 GuiAdapterMouseEvent mouse;
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167 double deltaX;
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168 double deltaY;
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169 unsigned long deltaMode;
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170 };
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171
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172 // we don't use any data now
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173 struct GuiAdapterUiEvent {};
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174
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175 // EmscriptenKeyboardEvent
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176 struct GuiAdapterKeyboardEvent
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177 {
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178 GuiAdapterHidEventType type;
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179 char sym[32];
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180 bool ctrlKey;
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181 bool shiftKey;
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182 bool altKey;
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183 };
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184
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185 std::ostream& operator<<(std::ostream& os, const GuiAdapterKeyboardEvent& event);
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186
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187 /*
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188 Mousedown event trigger when either the left or right (or middle) mouse is pressed
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189 on the object;
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190
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191 Mouseup event trigger when either the left or right (or middle) mouse is released
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192 above the object after triggered mousedown event and held.
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193
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194 Click event trigger when the only left mouse button is pressed and released on the
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195 same object, requires the Mousedown and Mouseup event happened before Click event.
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196
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197 The normal expect trigger order: onMousedown >> onMouseup >> onClick
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198
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199 Testing in Chrome v58, the time between onMouseup and onClick events are around
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200 7ms to 15ms
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201
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202 FROM: https://codingrepo.com/javascript/2017/05/19/javascript-difference-mousedown-mouseup-click-events/
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203 */
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204 #if ORTHANC_ENABLE_WASM == 1
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205 void ConvertFromPlatform(GuiAdapterUiEvent& dest, int eventType, const EmscriptenUiEvent& src);
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206
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207 void ConvertFromPlatform(GuiAdapterMouseEvent& dest, int eventType, const EmscriptenMouseEvent& src);
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208
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209 void ConvertFromPlatform(GuiAdapterWheelEvent& dest, int eventType, const EmscriptenWheelEvent& src);
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210
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211 void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const EmscriptenKeyboardEvent& src);
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212 #else
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213
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214 # if ORTHANC_ENABLE_SDL == 1
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215 void ConvertFromPlatform(GuiAdapterMouseEvent& dest, bool ctrlPressed, bool shiftPressed, bool altPressed, const SDL_Event& source);
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216
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217 void ConvertFromPlatform(GuiAdapterWheelEvent& dest, bool ctrlPressed, bool shiftPressed, bool altPressed, const SDL_Event& source);
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218
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219 void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const SDL_Event& source);
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220
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221 # endif
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222
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223 #endif
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224
937
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225 typedef void (*GuiAdapterRunFunc)(void*);
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226
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227 class GuiAdapter
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228 {
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229 public:
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230 #if ORTHANC_ENABLE_THREADS == 1
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231 GuiAdapter(Deprecated::LockingEmitter& lockingEmitter) : lockingEmitter_(lockingEmitter)
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232 #else
850
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233 GuiAdapter()
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234 #endif
850
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235 {
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236 static int instanceCount = 0;
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237 ORTHANC_ASSERT(instanceCount == 0);
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238 instanceCount = 1;
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239 }
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240
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241 void RegisterWidget(boost::shared_ptr<IGuiAdapterWidget> widget);
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242
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243 /**
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244 emscripten_set_resize_callback("#window", NULL, false, OnWindowResize);
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245
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246 emscripten_set_wheel_callback("mycanvas1", widget1_.get(), false, OnXXXMouseWheel);
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247 emscripten_set_wheel_callback("mycanvas2", widget2_.get(), false, OnXXXMouseWheel);
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248 emscripten_set_wheel_callback("mycanvas3", widget3_.get(), false, OnXXXMouseWheel);
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249
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250 emscripten_set_keydown_callback("#window", NULL, false, OnKeyDown);
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251 emscripten_set_keyup_callback("#window", NULL, false, OnKeyUp);
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252
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253 emscripten_request_animation_frame_loop(OnAnimationFrame, NULL);
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254
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255 SDL:
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256 see https://wiki.libsdl.org/SDL_CaptureMouse
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257
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258 */
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259
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260 void SetMouseDownCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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261 void SetMouseDblClickCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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262 void SetMouseMoveCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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263 void SetMouseUpCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func);
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264 void SetWheelCallback (std::string canvasId, void* userData, bool capture, OnMouseWheelFunc func);
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265 void SetKeyDownCallback (std::string canvasId, void* userData, bool capture, OnKeyDownFunc func);
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266 void SetKeyUpCallback (std::string canvasId, void* userData, bool capture, OnKeyUpFunc func);
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267
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268 // if you pass "#window", under SDL, then any Window resize will trigger the callback
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269 void SetResizeCallback (std::string canvasId, void* userData, bool capture, OnWindowResizeFunc func);
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270
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271 void RequestAnimationFrame(OnAnimationFrameFunc func, void* userData);
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272
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273 // TODO: implement and call to remove canvases [in SDL, although code should be generic]
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274 void SetOnExitCallback();
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275
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276 // void
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277 // OnWindowResize
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278 // oracle
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279 // broker
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280
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281 /**
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282 Under SDL, this function does NOT return until all windows have been closed.
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283 Under wasm, it returns without doing anything, since the event loop is managed
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284 by the browser.
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285 */
937
86ac61a040c9 Added getters and notifications to allow clients of the loaders (DicomStructureSetLoader, OrthancSeriesVolumeProgressiveLoader and OrthancMultiframeVolumeLoader) to know when the loading is finished + added ability for SDL event loop to execute a callback repeatedly (used to check the view loading state)
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286 void Run(GuiAdapterRunFunc func = NULL, void* cookie = NULL);
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287
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288 #if ORTHANC_ENABLE_WASM != 1
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289 /**
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290 This method must be called in order for callback handler to be allowed to
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291 be registered.
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292
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293 We'll retrieve its name and use it as the canvas name in all subsequent
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294 calls
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295 */
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296 //void RegisterSdlWindow(SDL_Window* window);
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297 //void UnregisterSdlWindow(SDL_Window* window);
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298 #endif
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299
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300 private:
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301
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302 #if ORTHANC_ENABLE_THREADS == 1
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303 /**
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304 This object is used by the multithreaded Oracle to serialize access to
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305 shared data. We need to use it as soon as we access the state.
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306 */
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307 Deprecated::LockingEmitter& lockingEmitter_;
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308 #endif
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309
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310 /**
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311 In SDL, this executes all the registered headers
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312 */
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313 void OnAnimationFrame();
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314
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315 //void RequestAnimationFrame(OnAnimationFrameFunc func, void* userData);
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316 std::vector<std::pair<OnAnimationFrameFunc, void*> >
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317 animationFrameHandlers_;
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318
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319 void OnResize();
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320
858
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321 #if ORTHANC_ENABLE_SDL == 1
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322 template<typename Func>
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323 struct EventHandlerData
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324 {
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325 EventHandlerData(std::string canvasName, Func func, void* userData)
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326 : canvasName(canvasName)
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327 , func(func)
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328 , userData(userData)
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329 {
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330 }
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331
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332 std::string canvasName;
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333 Func func;
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334 void* userData;
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335 };
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336 std::vector<EventHandlerData<OnWindowResizeFunc> > resizeHandlers_;
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337 std::vector<EventHandlerData<OnMouseEventFunc > > mouseDownHandlers_;
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338 std::vector<EventHandlerData<OnMouseEventFunc > > mouseDblCickHandlers_;
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339 std::vector<EventHandlerData<OnMouseEventFunc > > mouseMoveHandlers_;
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340 std::vector<EventHandlerData<OnMouseEventFunc > > mouseUpHandlers_;
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341 std::vector<EventHandlerData<OnMouseWheelFunc > > mouseWheelHandlers_;
861
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342 std::vector<EventHandlerData<OnKeyDownFunc > > keyDownHandlers_;
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343 std::vector<EventHandlerData<OnKeyUpFunc > > keyUpHandlers_;
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344
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345 /**
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346 This executes all the registered headers if needed (in wasm, the browser
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347 deals with this)
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348 */
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349 void OnMouseEvent(uint32_t windowID, const GuiAdapterMouseEvent& event);
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350
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351 void OnKeyboardEvent(uint32_t windowID, const GuiAdapterKeyboardEvent& event);
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352
858
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353 /**
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354 Same remark as OnMouseEvent
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355 */
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356 void OnMouseWheelEvent(uint32_t windowID, const GuiAdapterWheelEvent& event);
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357
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358 boost::shared_ptr<IGuiAdapterWidget> GetWidgetFromWindowId();
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359
843
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360 #endif
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361
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362 /**
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363 This executes all the registered headers if needed (in wasm, the browser
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364 deals with this)
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365 */
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366 void ViewportsUpdateSize();
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367
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368 std::vector<boost::weak_ptr<IGuiAdapterWidget> > widgets_;
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369
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370 template<typename F> void VisitWidgets(F func)
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371 {
845
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372 for (size_t i = 0; i < widgets_.size(); i++)
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373 {
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374 boost::shared_ptr<IGuiAdapterWidget> widget = widgets_[i].lock();
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375
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376 // TODO: we need to clean widgets!
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377 if (widget.get() != NULL)
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378 {
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379 func(widget);
401808e7ff2e Added traces in LoaderCache objects dtors + fuse to prevent dead weak ptrs to be calleds in VisitWdigets (in GuiAdapter.h)
Benjamin Golinvaux <bgo@osimis.io>
parents: 880
diff changeset
380 }
843
67f9c27214c5 Removed extra logging + doc + added GuiAdapter and LockingEmitter
Benjamin Golinvaux <bgo@osimis.io>
parents:
diff changeset
381 }
67f9c27214c5 Removed extra logging + doc + added GuiAdapter and LockingEmitter
Benjamin Golinvaux <bgo@osimis.io>
parents:
diff changeset
382 }
67f9c27214c5 Removed extra logging + doc + added GuiAdapter and LockingEmitter
Benjamin Golinvaux <bgo@osimis.io>
parents:
diff changeset
383 };
67f9c27214c5 Removed extra logging + doc + added GuiAdapter and LockingEmitter
Benjamin Golinvaux <bgo@osimis.io>
parents:
diff changeset
384 }