Mercurial > hg > orthanc-stone

annotate Samples/WebAssembly/BasicScene.cpp @ 1307:8a28a9bf8876 broker

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ViewportController now gets a ref to its parent viewport for proper lock usage
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 04 Mar 2020 10:07:37 +0100
parents 2d8ab34c8c91
children 8a0a62189f46
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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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21
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22 #include "dev.h"
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24 #include <emscripten.h>
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25 #include <emscripten/html5.h>
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26
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27 // From Stone
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28 #include "../../Framework/Scene2D/ColorTextureSceneLayer.h"
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29 #include "../../Framework/StoneInitialization.h"
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30
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31 // From Orthanc framework
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32 #include <Core/Images/Image.h>
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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 void PrepareScene(OrthancStone::Scene2D& scene)
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37 {
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38 using namespace OrthancStone;
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39
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40 // Texture of 2x2 size
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41 if (1)
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42 {
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43 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 2, 2, false);
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45 uint8_t *p = reinterpret_cast<uint8_t*>(i.GetRow(0));
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46 p[0] = 255;
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47 p[1] = 0;
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48 p[2] = 0;
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49
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50 p[3] = 0;
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51 p[4] = 255;
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52 p[5] = 0;
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54 p = reinterpret_cast<uint8_t*>(i.GetRow(1));
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55 p[0] = 0;
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56 p[1] = 0;
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57 p[2] = 255;
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58
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59 p[3] = 255;
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60 p[4] = 0;
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61 p[5] = 0;
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62
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63 scene.SetLayer(12, new ColorTextureSceneLayer(i));
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65 std::auto_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i));
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66 l->SetOrigin(-3, 2);
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67 l->SetPixelSpacing(1.5, 1);
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68 l->SetAngle(20.0 / 180.0 * M_PI);
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69 scene.SetLayer(14, l.release());
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70 }
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71
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72 // Texture of 1x1 size
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73 if (1)
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74 {
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75 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 1, 1, false);
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77 uint8_t *p = reinterpret_cast<uint8_t*>(i.GetRow(0));
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78 p[0] = 255;
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79 p[1] = 0;
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80 p[2] = 0;
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81
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82 std::auto_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i));
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83 l->SetOrigin(-2, 1);
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84 l->SetAngle(20.0 / 180.0 * M_PI);
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85 scene.SetLayer(13, l.release());
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86 }
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87
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88 // Some lines
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89 if (1)
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90 {
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91 std::auto_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer);
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92
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93 layer->SetThickness(1);
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94
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95 PolylineSceneLayer::Chain chain;
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96 chain.push_back(ScenePoint2D(0 - 0.5, 0 - 0.5));
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97 chain.push_back(ScenePoint2D(0 - 0.5, 2 - 0.5));
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98 chain.push_back(ScenePoint2D(2 - 0.5, 2 - 0.5));
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99 chain.push_back(ScenePoint2D(2 - 0.5, 0 - 0.5));
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100 layer->AddChain(chain, true, 255, 0, 0);
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101
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102 chain.clear();
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103 chain.push_back(ScenePoint2D(-5, -5));
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104 chain.push_back(ScenePoint2D(5, -5));
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105 chain.push_back(ScenePoint2D(5, 5));
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106 chain.push_back(ScenePoint2D(-5, 5));
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107 layer->AddChain(chain, true, 0, 255, 0);
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108
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109 double dy = 1.01;
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110 chain.clear();
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111 chain.push_back(ScenePoint2D(-4, -4));
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112 chain.push_back(ScenePoint2D(4, -4 + dy));
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113 chain.push_back(ScenePoint2D(-4, -4 + 2.0 * dy));
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114 chain.push_back(ScenePoint2D(4, 2));
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115 layer->AddChain(chain, false, 0, 0, 255);
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116
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117 scene.SetLayer(50, layer.release());
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118 }
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119
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120 // Some text
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121 if (1)
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122 {
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123 std::auto_ptr<TextSceneLayer> layer(new TextSceneLayer);
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124 layer->SetText("Hello");
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125 scene.SetLayer(100, layer.release());
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126 }
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127 }
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128
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129
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130 std::auto_ptr<OrthancStone::WebAssemblyViewport> viewport1_;
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131 std::auto_ptr<OrthancStone::WebAssemblyViewport> viewport2_;
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132 std::auto_ptr<OrthancStone::WebAssemblyViewport> viewport3_;
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133 boost::shared_ptr<OrthancStone::ViewportController> controller1_;
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134 boost::shared_ptr<OrthancStone::ViewportController> controller2_;
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135 boost::shared_ptr<OrthancStone::ViewportController> controller3_;
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136 OrthancStone::MessageBroker broker_;
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137
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138
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139 EM_BOOL OnWindowResize(
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140 int eventType, const EmscriptenUiEvent *uiEvent, void *userData)
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141 {
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142 if (viewport1_.get() != NULL)
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143 {
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144 viewport1_->UpdateSize();
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145 }
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146
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147 if (viewport2_.get() != NULL)
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148 {
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149 viewport2_->UpdateSize();
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150 }
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151
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152 if (viewport3_.get() != NULL)
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153 {
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154 viewport3_->UpdateSize();
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155 }
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156
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157 return true;
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158 }
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159
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160 extern "C"
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161 {
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162 int main(int argc, char const *argv[])
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163 {
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164 OrthancStone::StoneInitialize();
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165 // Orthanc::Logging::EnableInfoLevel(true);
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166 // Orthanc::Logging::EnableTraceLevel(true);
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167 EM_ASM(window.dispatchEvent(new CustomEvent("WebAssemblyLoaded")););
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168 }
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169
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170 EMSCRIPTEN_KEEPALIVE
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171 void Initialize()
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172 {
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173 viewport1_.reset(new OrthancStone::WebAssemblyViewport("mycanvas1"));
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174 PrepareScene(viewport1_->GetScene());
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175 viewport1_->UpdateSize();
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176
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177 viewport2_.reset(new OrthancStone::WebAssemblyViewport("mycanvas2"));
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178 PrepareScene(viewport2_->GetScene());
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179 viewport2_->UpdateSize();
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180
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181 viewport3_.reset(new OrthancStone::WebAssemblyViewport("mycanvas3"));
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182 PrepareScene(viewport3_->GetScene());
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183 viewport3_->UpdateSize();
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184
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185 viewport1_->GetCompositor().SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
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186 FONT_SIZE, Orthanc::Encoding_Latin1);
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187 viewport2_->GetCompositor().SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
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188 FONT_SIZE, Orthanc::Encoding_Latin1);
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189 viewport3_->GetCompositor().SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
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190 FONT_SIZE, Orthanc::Encoding_Latin1);
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191
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192 controller1_.reset(new OrthancStone::ViewportController(boost::make_shared<OrthancStone::UndoStack>(), broker_, *viewport1_));
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193 controller2_.reset(new OrthancStone::ViewportController(boost::make_shared<OrthancStone::UndoStack>(), broker_, *viewport2_));
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194 controller3_.reset(new OrthancStone::ViewportController(boost::make_shared<OrthancStone::UndoStack>(), broker_, *viewport3_));
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195
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196 controller1_->FitContent(viewport1_->GetCanvasWidth(), viewport1_->GetCanvasHeight());
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197 controller2_->FitContent(viewport2_->GetCanvasWidth(), viewport2_->GetCanvasHeight());
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198 controller3_->FitContent(viewport3_->GetCanvasWidth(), viewport3_->GetCanvasHeight());
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199
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200 viewport1_->Refresh();
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201 viewport2_->Refresh();
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202 viewport3_->Refresh();
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203
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204 SetupEvents("mycanvas1", controller1_);
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205 SetupEvents("mycanvas2", controller2_);
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206 SetupEvents("mycanvas3", controller3_);
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207
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208 emscripten_set_resize_callback("#window", NULL, false, OnWindowResize);
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209 }
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210 }