Mercurial > hg > orthanc-stone
annotate Applications/Generic/GuiAdapter.h @ 886:5cfb479fdbde am-dev
fix BasicScene WASM sample
author | Alain Mazy <alain@mazy.be> |
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date | Tue, 09 Jul 2019 17:36:47 +0200 |
parents | 9953f16c304d |
children | 401808e7ff2e |
rev | line source |
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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 | 70 enum GuiAdapterMouseButtonType |
71 { | |
72 GUIADAPTER_MOUSEBUTTON_LEFT = 0, | |
73 GUIADAPTER_MOUSEBUTTON_MIDDLE = 1, | |
74 GUIADAPTER_MOUSEBUTTON_RIGHT = 2 | |
75 }; | |
76 | |
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_MOUSEUP = 1975, |
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83 GUIADAPTER_EVENT_WHEEL = 1976, |
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84 GUIADAPTER_EVENT_KEYDOWN = 1977, |
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85 GUIADAPTER_EVENT_KEYUP = 1978, |
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86 }; |
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87 |
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88 const unsigned int GUIADAPTER_DELTA_PIXEL = 2973; |
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89 const unsigned int GUIADAPTER_DELTA_LINE = 2974; |
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90 const unsigned int GUIADAPTER_DELTA_PAGE = 2975; |
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91 |
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92 struct GuiAdapterUiEvent; |
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93 struct GuiAdapterMouseEvent; |
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94 struct GuiAdapterWheelEvent; |
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95 struct GuiAdapterKeyboardEvent; |
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96 |
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97 class LockingEmitter; |
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98 |
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99 #if 1 |
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100 typedef bool (*OnMouseEventFunc)(std::string canvasId, const GuiAdapterMouseEvent* mouseEvent, void* userData); |
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101 typedef bool (*OnMouseWheelFunc)(std::string canvasId, const GuiAdapterWheelEvent* wheelEvent, void* userData); |
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102 typedef bool (*OnKeyDownFunc) (std::string canvasId, const GuiAdapterKeyboardEvent* keyEvent, void* userData); |
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103 typedef bool (*OnKeyUpFunc) (std::string canvasId, const GuiAdapterKeyboardEvent* keyEvent, void* userData); |
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104 |
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105 typedef bool (*OnAnimationFrameFunc)(double time, void* userData); |
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106 typedef bool (*OnWindowResizeFunc)(std::string canvasId, const GuiAdapterUiEvent* uiEvent, void* userData); |
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107 |
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108 #else |
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109 |
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110 #if ORTHANC_ENABLE_WASM == 1 |
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111 typedef EM_BOOL (*OnMouseEventFunc)(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData); |
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112 typedef EM_BOOL (*OnMouseWheelFunc)(int eventType, const EmscriptenWheelEvent* wheelEvent, void* userData); |
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113 typedef EM_BOOL (*OnKeyDownFunc) (int eventType, const EmscriptenKeyboardEvent* keyEvent, void* userData); |
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114 typedef EM_BOOL (*OnKeyUpFunc) (int eventType, const EmscriptenKeyboardEvent* keyEvent, void* userData); |
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115 |
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116 typedef EM_BOOL (*OnAnimationFrameFunc)(double time, void* userData); |
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117 typedef EM_BOOL (*OnWindowResizeFunc)(int eventType, const EmscriptenUiEvent* uiEvent, void* userData); |
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118 #else |
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119 typedef bool (*OnMouseEventFunc)(int eventType, const SDL_Event* mouseEvent, void* userData); |
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120 typedef bool (*OnMouseWheelFunc)(int eventType, const SDL_Event* wheelEvent, void* userData); |
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121 typedef bool (*OnKeyDownFunc) (int eventType, const SDL_Event* keyEvent, void* userData); |
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122 typedef bool (*OnKeyUpFunc) (int eventType, const SDL_Event* keyEvent, void* userData); |
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123 |
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124 typedef bool (*OnAnimationFrameFunc)(double time, void* userData); |
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125 typedef bool (*OnWindowResizeFunc)(int eventType, const GuiAdapterUiEvent* uiEvent, void* userData); |
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126 #endif |
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127 |
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128 #endif |
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129 struct GuiAdapterMouseEvent |
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130 { |
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131 GuiAdapterHidEventType type; |
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132 //double timestamp; |
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133 //long screenX; |
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134 //long screenY; |
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135 //long clientX; |
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136 //long clientY; |
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137 bool ctrlKey; |
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138 bool shiftKey; |
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139 bool altKey; |
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140 //bool metaKey; |
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141 unsigned short button; |
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142 //unsigned short buttons; |
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143 //long movementX; |
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144 //long movementY; |
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145 long targetX; |
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146 long targetY; |
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147 // 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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148 //long canvasX; |
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149 //long canvasY; |
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150 //long padding; |
879 | 151 |
152 public: | |
153 GuiAdapterMouseEvent() | |
154 : ctrlKey(false), | |
155 shiftKey(false), | |
156 altKey(false) | |
157 { | |
158 } | |
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159 }; |
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160 |
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161 struct GuiAdapterWheelEvent { |
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162 GuiAdapterMouseEvent mouse; |
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163 double deltaX; |
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164 double deltaY; |
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165 unsigned long deltaMode; |
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166 }; |
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167 |
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168 // we don't use any data now |
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169 struct GuiAdapterUiEvent {}; |
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170 |
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171 // EmscriptenKeyboardEvent |
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172 struct GuiAdapterKeyboardEvent |
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173 { |
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174 GuiAdapterHidEventType type; |
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175 char sym[32]; |
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176 bool ctrlKey; |
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177 bool shiftKey; |
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178 bool altKey; |
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179 }; |
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180 |
879 | 181 std::ostream& operator<<(std::ostream& os, const GuiAdapterKeyboardEvent& event); |
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182 |
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183 /* |
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184 Mousedown event trigger when either the left or right (or middle) mouse is pressed |
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185 on the object; |
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186 |
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187 Mouseup event trigger when either the left or right (or middle) mouse is released |
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188 above the object after triggered mousedown event and held. |
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189 |
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190 Click event trigger when the only left mouse button is pressed and released on the |
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191 same object, requires the Mousedown and Mouseup event happened before Click event. |
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192 |
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193 The normal expect trigger order: onMousedown >> onMouseup >> onClick |
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194 |
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195 Testing in Chrome v58, the time between onMouseup and onClick events are around |
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196 7ms to 15ms |
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197 |
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198 FROM: https://codingrepo.com/javascript/2017/05/19/javascript-difference-mousedown-mouseup-click-events/ |
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199 */ |
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200 #if ORTHANC_ENABLE_WASM == 1 |
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201 void ConvertFromPlatform(GuiAdapterUiEvent& dest, int eventType, const EmscriptenUiEvent& src); |
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202 |
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203 void ConvertFromPlatform(GuiAdapterMouseEvent& dest, int eventType, const EmscriptenMouseEvent& src); |
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204 |
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205 void ConvertFromPlatform(GuiAdapterWheelEvent& dest, int eventType, const EmscriptenWheelEvent& src); |
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206 |
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207 void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const EmscriptenKeyboardEvent& src); |
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208 #else |
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209 |
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210 # if ORTHANC_ENABLE_SDL == 1 |
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211 void ConvertFromPlatform(GuiAdapterMouseEvent& dest, bool ctrlPressed, bool shiftPressed, bool altPressed, const SDL_Event& source); |
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212 |
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213 void ConvertFromPlatform(GuiAdapterWheelEvent& dest, bool ctrlPressed, bool shiftPressed, bool altPressed, const SDL_Event& source); |
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214 |
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215 void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const SDL_Event& source); |
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216 |
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217 # endif |
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218 |
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219 #endif |
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220 |
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221 class GuiAdapter |
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222 { |
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223 public: |
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224 #if ORTHANC_ENABLE_THREADS == 1 |
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225 GuiAdapter(LockingEmitter& lockingEmitter) : lockingEmitter_(lockingEmitter) |
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226 #else |
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227 GuiAdapter() |
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228 #endif |
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229 { |
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230 static int instanceCount = 0; |
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231 ORTHANC_ASSERT(instanceCount == 0); |
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232 instanceCount = 1; |
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233 } |
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234 |
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235 void RegisterWidget(boost::shared_ptr<IGuiAdapterWidget> widget); |
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236 |
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237 /** |
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238 emscripten_set_resize_callback("#window", NULL, false, OnWindowResize); |
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239 |
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240 emscripten_set_wheel_callback("mycanvas1", widget1_.get(), false, OnXXXMouseWheel); |
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241 emscripten_set_wheel_callback("mycanvas2", widget2_.get(), false, OnXXXMouseWheel); |
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242 emscripten_set_wheel_callback("mycanvas3", widget3_.get(), false, OnXXXMouseWheel); |
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243 |
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244 emscripten_set_keydown_callback("#window", NULL, false, OnKeyDown); |
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245 emscripten_set_keyup_callback("#window", NULL, false, OnKeyUp); |
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246 |
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247 emscripten_request_animation_frame_loop(OnAnimationFrame, NULL); |
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248 |
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249 SDL: |
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250 see https://wiki.libsdl.org/SDL_CaptureMouse |
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251 |
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252 */ |
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253 |
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254 void SetMouseDownCallback(std::string canvasId, void* userData, bool capture, OnMouseEventFunc func); |
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255 void SetMouseMoveCallback(std::string canvasId, void* userData, bool capture, OnMouseEventFunc func); |
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256 void SetMouseUpCallback (std::string canvasId, void* userData, bool capture, OnMouseEventFunc func); |
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257 void SetWheelCallback (std::string canvasId, void* userData, bool capture, OnMouseWheelFunc func); |
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258 void SetKeyDownCallback (std::string canvasId, void* userData, bool capture, OnKeyDownFunc func); |
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259 void SetKeyUpCallback (std::string canvasId, void* userData, bool capture, OnKeyUpFunc func); |
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260 |
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261 // if you pass "#window", under SDL, then any Window resize will trigger the callback |
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262 void SetResizeCallback (std::string canvasId, void* userData, bool capture, OnWindowResizeFunc func); |
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263 |
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264 void RequestAnimationFrame(OnAnimationFrameFunc func, void* userData); |
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265 |
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266 // TODO: implement and call to remove canvases [in SDL, although code should be generic] |
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267 void SetOnExitCallback(); |
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268 |
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269 // void |
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270 // OnWindowResize |
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271 // oracle |
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272 // broker |
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273 |
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274 /** |
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275 Under SDL, this function does NOT return until all windows have been closed. |
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276 Under wasm, it returns without doing anything, since the event loop is managed |
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277 by the browser. |
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278 */ |
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279 void Run(); |
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280 |
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281 #if ORTHANC_ENABLE_WASM != 1 |
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282 /** |
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283 This method must be called in order for callback handler to be allowed to |
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284 be registered. |
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285 |
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286 We'll retrieve its name and use it as the canvas name in all subsequent |
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287 calls |
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288 */ |
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289 //void RegisterSdlWindow(SDL_Window* window); |
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290 //void UnregisterSdlWindow(SDL_Window* window); |
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291 #endif |
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292 |
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293 private: |
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294 |
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295 #if ORTHANC_ENABLE_THREADS == 1 |
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296 /** |
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297 This object is used by the multithreaded Oracle to serialize access to |
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298 shared data. We need to use it as soon as we access the state. |
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299 */ |
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300 LockingEmitter& lockingEmitter_; |
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301 #endif |
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302 |
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303 /** |
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304 In SDL, this executes all the registered headers |
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305 */ |
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306 void OnAnimationFrame(); |
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307 |
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308 //void RequestAnimationFrame(OnAnimationFrameFunc func, void* userData); |
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309 std::vector<std::pair<OnAnimationFrameFunc, void*> > |
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310 animationFrameHandlers_; |
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311 |
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312 void OnResize(); |
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313 |
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314 #if ORTHANC_ENABLE_SDL == 1 |
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315 template<typename Func> |
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316 struct EventHandlerData |
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317 { |
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318 EventHandlerData(std::string canvasName, Func func, void* userData) |
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319 : canvasName(canvasName) |
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320 , func(func) |
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321 , userData(userData) |
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322 { |
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323 } |
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324 |
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325 std::string canvasName; |
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326 Func func; |
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327 void* userData; |
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328 }; |
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329 std::vector<EventHandlerData<OnWindowResizeFunc> > resizeHandlers_; |
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330 std::vector<EventHandlerData<OnMouseEventFunc > > mouseDownHandlers_; |
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331 std::vector<EventHandlerData<OnMouseEventFunc > > mouseMoveHandlers_; |
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332 std::vector<EventHandlerData<OnMouseEventFunc > > mouseUpHandlers_; |
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333 std::vector<EventHandlerData<OnMouseWheelFunc > > mouseWheelHandlers_; |
861
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334 std::vector<EventHandlerData<OnKeyDownFunc > > keyDownHandlers_; |
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335 std::vector<EventHandlerData<OnKeyUpFunc > > keyUpHandlers_; |
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336 |
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337 /** |
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338 This executes all the registered headers if needed (in wasm, the browser |
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339 deals with this) |
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340 */ |
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341 void OnMouseEvent(uint32_t windowID, const GuiAdapterMouseEvent& event); |
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342 |
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343 void OnKeyboardEvent(uint32_t windowID, const GuiAdapterKeyboardEvent& event); |
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344 |
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345 /** |
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346 Same remark as OnMouseEvent |
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347 */ |
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348 void OnMouseWheelEvent(uint32_t windowID, const GuiAdapterWheelEvent& event); |
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349 |
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350 boost::shared_ptr<IGuiAdapterWidget> GetWidgetFromWindowId(); |
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351 |
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352 #endif |
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353 |
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354 /** |
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355 This executes all the registered headers if needed (in wasm, the browser |
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356 deals with this) |
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357 */ |
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358 void ViewportsUpdateSize(); |
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359 |
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360 std::vector<boost::weak_ptr<IGuiAdapterWidget> > widgets_; |
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361 |
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362 template<typename F> void VisitWidgets(F func) |
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363 { |
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364 for (size_t i = 0; i < widgets_.size(); i++) |
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365 { |
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366 boost::shared_ptr<IGuiAdapterWidget> widget = widgets_[i].lock(); |
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367 func(widget); |
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368 } |
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369 } |
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370 }; |
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371 } |