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annotate Samples/Sdl/RadiographyEditor.cpp @ 1246:3fe803f65c47 broker

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proper initialization of opengl canvas size
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jan 2020 12:56:40 +0100
parents 80829436ce0c
children 2d8ab34c8c91
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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21 #include "../Shared/RadiographyEditorApp.h"
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22
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23 // From Stone
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24 #include "../../Framework/Oracle/SleepOracleCommand.h"
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25 #include "../../Framework/Oracle/ThreadedOracle.h"
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26 #include "../../Applications/Sdl/SdlOpenGLWindow.h"
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27 #include "../../Framework/Scene2D/OpenGLCompositor.h"
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28 #include "../../Framework/Scene2D/CairoCompositor.h"
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29 #include "../../Framework/Scene2D/ColorTextureSceneLayer.h"
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30 #include "../../Framework/Scene2D/OpenGLCompositor.h"
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31 #include "../../Framework/StoneInitialization.h"
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32
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33 #include <Core/Logging.h>
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34 #include <Core/OrthancException.h>
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35
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36
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37 #include <boost/shared_ptr.hpp>
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38 #include <boost/weak_ptr.hpp>
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39
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40 #include <SDL.h>
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41 #include <stdio.h>
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42
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43 using namespace OrthancStone;
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44
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45 namespace OrthancStone
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46 {
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47 class NativeApplicationContext : public IMessageEmitter
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48 {
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49 private:
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50 boost::shared_mutex mutex_;
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51 MessageBroker broker_;
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52 IObservable oracleObservable_;
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53
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54 public:
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55 NativeApplicationContext() :
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56 oracleObservable_(broker_)
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57 {
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58 }
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59
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60
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61 virtual void EmitMessage(const IObserver& observer,
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62 const IMessage& message) ORTHANC_OVERRIDE
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63 {
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64 try
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65 {
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66 boost::unique_lock<boost::shared_mutex> lock(mutex_);
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67 oracleObservable_.EmitMessage(observer, message);
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68 }
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69 catch (Orthanc::OrthancException& e)
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70 {
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71 LOG(ERROR) << "Exception while emitting a message: " << e.What();
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72 }
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73 }
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74
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75
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76 class ReaderLock : public boost::noncopyable
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77 {
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78 private:
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79 NativeApplicationContext& that_;
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80 boost::shared_lock<boost::shared_mutex> lock_;
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81
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82 public:
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83 ReaderLock(NativeApplicationContext& that) :
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84 that_(that),
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85 lock_(that.mutex_)
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86 {
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87 }
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88 };
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89
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90
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91 class WriterLock : public boost::noncopyable
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92 {
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93 private:
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94 NativeApplicationContext& that_;
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95 boost::unique_lock<boost::shared_mutex> lock_;
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96
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97 public:
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98 WriterLock(NativeApplicationContext& that) :
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99 that_(that),
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100 lock_(that.mutex_)
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101 {
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102 }
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103
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104 MessageBroker& GetBroker()
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105 {
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106 return that_.broker_;
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107 }
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108
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109 IObservable& GetOracleObservable()
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110 {
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111 return that_.oracleObservable_;
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112 }
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113 };
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114 };
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115 }
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116
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117 class OpenGlSdlCompositorFactory : public ICompositorFactory
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118 {
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119 OpenGL::IOpenGLContext& openGlContext_;
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120
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121 public:
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122 OpenGlSdlCompositorFactory(OpenGL::IOpenGLContext& openGlContext) :
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123 openGlContext_(openGlContext)
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124 {}
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125
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126 ICompositor* GetCompositor(const Scene2D& scene)
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127 {
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128
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129 OpenGLCompositor* compositor = new OpenGLCompositor(openGlContext_, scene);
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130 compositor->SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
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131 FONT_SIZE_0, Orthanc::Encoding_Latin1);
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132 compositor->SetFont(1, Orthanc::EmbeddedResources::UBUNTU_FONT,
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133 FONT_SIZE_1, Orthanc::Encoding_Latin1);
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134 return compositor;
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135 }
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136 };
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137
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138 static void GLAPIENTRY
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139 OpenGLMessageCallback(GLenum source,
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140 GLenum type,
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141 GLuint id,
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142 GLenum severity,
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143 GLsizei length,
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144 const GLchar* message,
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145 const void* userParam)
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146 {
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147 if (severity != GL_DEBUG_SEVERITY_NOTIFICATION)
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148 {
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149 fprintf(stderr, "GL CALLBACK: %s type = 0x%x, severity = 0x%x, message = %s\n",
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150 (type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : ""),
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151 type, severity, message);
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152 }
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153 }
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154
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155
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156 /**
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157 * IMPORTANT: The full arguments to "main()" are needed for SDL on
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158 * Windows. Otherwise, one gets the linking error "undefined reference
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159 * to `SDL_main'". https://wiki.libsdl.org/FAQWindows
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160 **/
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161 int main(int argc, char* argv[])
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162 {
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163 using namespace OrthancStone;
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164
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165 StoneInitialize();
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166 Orthanc::Logging::EnableInfoLevel(true);
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167 // Orthanc::Logging::EnableTraceLevel(true);
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168
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169 try
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170 {
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171 OrthancStone::NativeApplicationContext context;
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172 OrthancStone::NativeApplicationContext::WriterLock lock(context);
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173 OrthancStone::ThreadedOracle oracle(context);
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174
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175 // False means we do NOT let Windows treat this as a legacy application
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176 // that needs to be scaled
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177 SdlOpenGLWindow window("Hello", 1024, 1024, false);
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178
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179 glEnable(GL_DEBUG_OUTPUT);
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180 glDebugMessageCallback(OpenGLMessageCallback, 0);
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181
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182 std::auto_ptr<OpenGlSdlCompositorFactory> compositorFactory(new OpenGlSdlCompositorFactory(window));
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183 boost::shared_ptr<RadiographyEditorApp> app(new RadiographyEditorApp(oracle, lock.GetOracleObservable(), compositorFactory.release()));
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184 app->PrepareScene();
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185 app->FitContent(window.GetCanvasWidth(), window.GetCanvasHeight());
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186
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187 bool stopApplication = false;
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188
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189 while (!stopApplication)
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190 {
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191 app->Refresh();
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192
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193 SDL_Event event;
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194 while (!stopApplication && SDL_PollEvent(&event))
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195 {
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196 OrthancStone::KeyboardModifiers modifiers = OrthancStone::KeyboardModifiers_None;
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197 if (event.key.keysym.mod & KMOD_CTRL)
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198 modifiers = static_cast<OrthancStone::KeyboardModifiers>(static_cast<int>(modifiers) | static_cast<int>(OrthancStone::KeyboardModifiers_Control));
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199 if (event.key.keysym.mod & KMOD_ALT)
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200 modifiers = static_cast<OrthancStone::KeyboardModifiers>(static_cast<int>(modifiers) | static_cast<int>(OrthancStone::KeyboardModifiers_Alt));
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201 if (event.key.keysym.mod & KMOD_SHIFT)
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202 modifiers = static_cast<OrthancStone::KeyboardModifiers>(static_cast<int>(modifiers) | static_cast<int>(OrthancStone::KeyboardModifiers_Shift));
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203
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204 OrthancStone::MouseButton button;
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205 if (event.button.button == SDL_BUTTON_LEFT)
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206 button = OrthancStone::MouseButton_Left;
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207 else if (event.button.button == SDL_BUTTON_MIDDLE)
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208 button = OrthancStone::MouseButton_Middle;
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209 else if (event.button.button == SDL_BUTTON_RIGHT)
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210 button = OrthancStone::MouseButton_Right;
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211
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212 if (event.type == SDL_QUIT)
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213 {
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214 stopApplication = true;
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215 break;
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216 }
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217 else if (event.type == SDL_WINDOWEVENT &&
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218 event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
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219 {
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220 app->DisableTracker(); // was: tracker.reset(NULL);
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221 app->UpdateSize();
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222 }
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223 else if (event.type == SDL_KEYDOWN &&
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224 event.key.repeat == 0 /* Ignore key bounce */)
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225 {
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226 switch (event.key.keysym.sym)
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227 {
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228 case SDLK_f:
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229 window.GetWindow().ToggleMaximize();
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230 break;
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231
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232 case SDLK_q:
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233 stopApplication = true;
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234 break;
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235 default:
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236 {
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237 app->OnKeyPressed(event.key.keysym.sym, modifiers);
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238 }
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239 }
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240 }
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241 else if (event.type == SDL_MOUSEBUTTONDOWN)
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242 {
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243 app->OnMouseDown(event.button.x, event.button.y, modifiers, button);
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244 }
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245 else if (event.type == SDL_MOUSEMOTION)
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246 {
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247 app->OnMouseMove(event.button.x, event.button.y, modifiers);
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248 }
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249 else if (event.type == SDL_MOUSEBUTTONUP)
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250 {
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251 app->OnMouseUp(event.button.x, event.button.y, modifiers, button);
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252 }
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253 }
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254 SDL_Delay(1);
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255 }
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256 }
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257 catch (Orthanc::OrthancException& e)
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258 {
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259 LOG(ERROR) << "EXCEPTION: " << e.What();
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260 }
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261
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262 StoneFinalize();
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263
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264 return 0;
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265 }
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266
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267