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annotate OrthancStone/Sources/Viewport/SdlViewport.h @ 1512:244ad1e4e76a

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reorganization of folders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 16:21:02 +0200
parents Framework/Viewport/SdlViewport.h@32272ecfc6c2
children b4ccd4963d37
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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
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21 #pragma once
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22
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23 #if !defined(ORTHANC_ENABLE_SDL)
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24 # error Macro ORTHANC_ENABLE_SDL must be defined
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25 #endif
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26
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27 #if ORTHANC_ENABLE_SDL != 1
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28 # error SDL must be enabled to use this file
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29 #endif
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30
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31 #if !defined(ORTHANC_ENABLE_OPENGL)
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32 # error The macro ORTHANC_ENABLE_OPENGL must be defined
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33 #endif
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34
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35 #if ORTHANC_ENABLE_OPENGL != 1
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36 # error Support for OpenGL is disabled
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37 #endif
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38
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39 #include "../OpenGL/SdlOpenGLContext.h"
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40 #include "../Scene2D/OpenGLCompositor.h"
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41 #include "../Scene2D/CairoCompositor.h"
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42 #include "IViewport.h"
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43
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44 #include <SDL_events.h>
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45
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46 // TODO: required for UndoStack injection
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47 // I don't like it either :)
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48 #include <boost/weak_ptr.hpp>
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49
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50 #include <boost/thread/recursive_mutex.hpp>
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51
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52 namespace OrthancStone
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53 {
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54 class UndoStack;
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55
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56 class SdlViewport : public IViewport,
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57 public boost::enable_shared_from_this<SdlViewport>
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58 {
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59 private:
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60 boost::recursive_mutex mutex_;
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61 uint32_t refreshEvent_;
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62 boost::shared_ptr<ViewportController> controller_;
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63 std::unique_ptr<ICompositor> compositor_;
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64
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65 void SendRefreshEvent();
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66
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67 protected:
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68 class SdlLock : public ILock
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69 {
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70 private:
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71 SdlViewport& that_;
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72 boost::recursive_mutex::scoped_lock lock_;
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73
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74 public:
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75 SdlLock(SdlViewport& that) :
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76 that_(that),
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77 lock_(that.mutex_)
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78 {
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79 }
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80
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81 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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82 {
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83 return true;
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84 }
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85
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86 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE;
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87
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88 virtual ViewportController& GetController() ORTHANC_OVERRIDE
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89 {
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90 return *that_.controller_;
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91 }
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92
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93 virtual void Invalidate() ORTHANC_OVERRIDE
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94 {
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95 that_.SendRefreshEvent();
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96 }
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97 };
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98
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99 void ClearCompositor()
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100 {
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101 compositor_.reset();
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102 }
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103
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104 void AcquireCompositor(ICompositor* compositor /* takes ownership */);
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105
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106 protected:
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107 SdlViewport();
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108 void PostConstructor();
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109
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110 public:
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111
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112 bool IsRefreshEvent(const SDL_Event& event) const
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113 {
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114 return (event.type == refreshEvent_);
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115 }
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116
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117 virtual ILock* Lock() ORTHANC_OVERRIDE
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118 {
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119 return new SdlLock(*this);
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120 }
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121
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122 virtual uint32_t GetSdlWindowId() = 0;
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123
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124 virtual void UpdateSize(unsigned int width,
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125 unsigned int height) = 0;
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126
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127 virtual void ToggleMaximize() = 0;
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128
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129 // Must be invoked from the main SDL thread
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130 virtual void Paint() = 0;
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131 };
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132
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134 class SdlOpenGLViewport : public SdlViewport
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135 {
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136 private:
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137 SdlOpenGLContext context_;
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138
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139 private:
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140 SdlOpenGLViewport(const std::string& title,
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141 unsigned int width,
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142 unsigned int height,
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143 bool allowDpiScaling = true);
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144 public:
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145 static boost::shared_ptr<SdlOpenGLViewport> Create(const std::string&,
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146 unsigned int width,
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147 unsigned int height,
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148 bool allowDpiScaling = true);
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149
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150
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151 virtual ~SdlOpenGLViewport();
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152
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153 virtual uint32_t GetSdlWindowId() ORTHANC_OVERRIDE;
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154
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155 virtual void Paint() ORTHANC_OVERRIDE;
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156
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157 virtual void UpdateSize(unsigned int width,
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158 unsigned int height) ORTHANC_OVERRIDE;
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159
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160 virtual void ToggleMaximize() ORTHANC_OVERRIDE;
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161 };
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162
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163
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164 class SdlCairoViewport : public SdlViewport
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165 {
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166 private:
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167 SdlWindow window_;
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168 SDL_Surface* sdlSurface_;
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169
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170 void CreateSdlSurfaceFromCompositor(CairoCompositor& compositor);
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171
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172 private:
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173 SdlCairoViewport(const char* title,
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174 unsigned int width,
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175 unsigned int height,
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176 bool allowDpiScaling = true);
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177 public:
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178 static boost::shared_ptr<SdlCairoViewport> Create(const char* title,
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179 unsigned int width,
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180 unsigned int height,
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181 bool allowDpiScaling = true);
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182
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183
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184 virtual ~SdlCairoViewport();
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185
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186 virtual uint32_t GetSdlWindowId() ORTHANC_OVERRIDE;
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187
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188 virtual void Paint() ORTHANC_OVERRIDE;
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189
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190 virtual void UpdateSize(unsigned int width,
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191 unsigned int height) ORTHANC_OVERRIDE;
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192
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193 virtual void ToggleMaximize() ORTHANC_OVERRIDE;
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194 };
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195 }