Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Platforms/Sdl/SdlViewport.h @ 1928:c73e696967b0 StoneWebViewer-2.3

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StoneWebViewer-2.3
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 24 Mar 2022 09:08:51 +0100
parents 184b0aeae1af
children 07964689cb0b
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1899
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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) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23 #pragma once
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24
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25 #if !defined(ORTHANC_ENABLE_SDL)
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26 # error Macro ORTHANC_ENABLE_SDL must be defined
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27 #endif
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28
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29 #if ORTHANC_ENABLE_SDL != 1
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30 # error SDL must be enabled to use this file
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31 #endif
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32
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33 #if !defined(ORTHANC_ENABLE_OPENGL)
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34 # error The macro ORTHANC_ENABLE_OPENGL must be defined
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35 #endif
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36
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37 #include "SdlOpenGLContext.h"
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38 #include "../../Scene2D/CairoCompositor.h"
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39 #include "../../Viewport/IViewport.h"
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40
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41 #if ORTHANC_ENABLE_OPENGL == 1
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42 # include "../../Scene2D/OpenGLCompositor.h"
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43 #endif
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44
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45 #include <SDL_events.h>
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46
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47 // TODO: required for UndoStack injection
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48 // I don't like it either :)
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49 #include <boost/weak_ptr.hpp>
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50
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51 #include <boost/thread/recursive_mutex.hpp>
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52 #include <boost/enable_shared_from_this.hpp>
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53
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54 namespace OrthancStone
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55 {
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56 class UndoStack;
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57
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58 class SdlViewport : public IViewport,
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59 public boost::enable_shared_from_this<SdlViewport>
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60 {
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61 private:
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62 boost::recursive_mutex mutex_;
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63 uint32_t refreshEvent_;
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64 boost::shared_ptr<ViewportController> controller_;
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65 std::unique_ptr<ICompositor> compositor_;
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66
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67 void SendRefreshEvent();
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68
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69 protected:
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70 class SdlLock : public ILock
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71 {
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72 private:
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73 SdlViewport& that_;
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74 boost::recursive_mutex::scoped_lock lock_;
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75
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76 public:
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77 explicit SdlLock(SdlViewport& that) :
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78 that_(that),
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79 lock_(that.mutex_)
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80 {
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81 }
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82
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83 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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84 {
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85 return true;
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86 }
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87
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88 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE;
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89
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90 virtual ViewportController& GetController() ORTHANC_OVERRIDE
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91 {
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92 return *that_.controller_;
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93 }
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94
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95 virtual void Invalidate() ORTHANC_OVERRIDE
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96 {
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97 that_.SendRefreshEvent();
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98 }
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99
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100 virtual void RefreshCanvasSize() ORTHANC_OVERRIDE
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101 {
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102 that_.RefreshCanvasSize();
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103 }
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104 };
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105
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106 void ClearCompositor()
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107 {
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108 compositor_.reset();
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109 }
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110
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111 void AcquireCompositor(ICompositor* compositor /* takes ownership */);
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112
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113 virtual void RefreshCanvasSize() = 0;
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114
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115 protected:
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116 SdlViewport();
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117
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118 void PostConstructor();
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119
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120 public:
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121 bool IsRefreshEvent(const SDL_Event& event) const
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122 {
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123 return (event.type == refreshEvent_);
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124 }
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125
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126 virtual ILock* Lock() ORTHANC_OVERRIDE
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127 {
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128 return new SdlLock(*this);
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129 }
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130
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131 virtual uint32_t GetSdlWindowId() = 0;
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132
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133 void UpdateSize(unsigned int width,
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134 unsigned int height);
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135
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136 virtual void ToggleMaximize() = 0;
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137
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138 // Must be invoked from the main SDL thread
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139 virtual void Paint() = 0;
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140 };
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141
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142
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143 #if ORTHANC_ENABLE_OPENGL == 1
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144 class SdlOpenGLViewport : public SdlViewport
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145 {
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146 private:
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147 SdlOpenGLContext context_;
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148
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149 SdlOpenGLViewport(const std::string& title,
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150 unsigned int width,
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151 unsigned int height,
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152 bool allowDpiScaling = true);
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153
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154 protected:
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155 virtual void RefreshCanvasSize() ORTHANC_OVERRIDE;
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156
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157 public:
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158 static boost::shared_ptr<SdlOpenGLViewport> Create(const std::string& title,
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159 unsigned int width,
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160 unsigned int height,
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161 bool allowDpiScaling = true);
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162
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163
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164 virtual ~SdlOpenGLViewport();
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165
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166 virtual uint32_t GetSdlWindowId() ORTHANC_OVERRIDE;
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167
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168 virtual void Paint() ORTHANC_OVERRIDE;
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169
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170 virtual void ToggleMaximize() ORTHANC_OVERRIDE;
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171 };
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172 #endif
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173
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174
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175 class SdlCairoViewport : public SdlViewport
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176 {
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177 private:
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178 SdlWindow window_;
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179 SDL_Surface* sdlSurface_;
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180
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181 void CreateSdlSurfaceFromCompositor(const CairoCompositor& compositor);
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182
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183 SdlCairoViewport(const std::string& title,
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184 unsigned int width,
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185 unsigned int height,
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186 bool allowDpiScaling);
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187
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188 protected:
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189 virtual void RefreshCanvasSize() ORTHANC_OVERRIDE;
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190
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191 public:
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192 static boost::shared_ptr<SdlCairoViewport> Create(const std::string& title,
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193 unsigned int width,
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194 unsigned int height,
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195 bool allowDpiScaling = true);
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196
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197 virtual ~SdlCairoViewport();
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198
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199 virtual uint32_t GetSdlWindowId() ORTHANC_OVERRIDE;
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200
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201 virtual void Paint() ORTHANC_OVERRIDE;
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202
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203 virtual void ToggleMaximize() ORTHANC_OVERRIDE;
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204 };
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205 }