Mercurial > hg > orthanc-stone

annotate Samples/WebAssembly/BasicScene.cpp @ 891:0aff28f15ea2

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new abstraction: IViewport
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 10 Jul 2019 18:18:42 +0200
parents 2de01660debe
children 50cd372e2460
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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
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22 #include "dev.h"
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23
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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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44
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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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53
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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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64
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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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76
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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 {
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90 std::auto_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer);
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91
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92 layer->SetThickness(1);
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93
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94 PolylineSceneLayer::Chain chain;
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95 chain.push_back(ScenePoint2D(0 - 0.5, 0 - 0.5));
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96 chain.push_back(ScenePoint2D(0 - 0.5, 2 - 0.5));
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97 chain.push_back(ScenePoint2D(2 - 0.5, 2 - 0.5));
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98 chain.push_back(ScenePoint2D(2 - 0.5, 0 - 0.5));
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99 layer->AddChain(chain, true, 255, 0, 0);
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100
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101 chain.clear();
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102 chain.push_back(ScenePoint2D(-5, -5));
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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 layer->AddChain(chain, true, 0, 255, 0);
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107
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108 double dy = 1.01;
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109 chain.clear();
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110 chain.push_back(ScenePoint2D(-4, -4));
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111 chain.push_back(ScenePoint2D(4, -4 + dy));
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112 chain.push_back(ScenePoint2D(-4, -4 + 2.0 * dy));
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113 chain.push_back(ScenePoint2D(4, 2));
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114 layer->AddChain(chain, false, 0, 0, 255);
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115
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116 scene.SetLayer(50, layer.release());
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117 }
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118
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119 // Some text
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120 if (1)
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121 {
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122 std::auto_ptr<TextSceneLayer> layer(new TextSceneLayer);
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123 layer->SetText("Hello");
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124 scene.SetLayer(100, layer.release());
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125 }
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126 }
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127
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128
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129 std::auto_ptr<OrthancStone::WebAssemblyViewport> viewport1_;
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130 std::auto_ptr<OrthancStone::WebAssemblyViewport> viewport2_;
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131 std::auto_ptr<OrthancStone::WebAssemblyViewport> viewport3_;
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132 boost::shared_ptr<OrthancStone::ViewportController> controller1_;
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133 boost::shared_ptr<OrthancStone::ViewportController> controller2_;
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134 boost::shared_ptr<OrthancStone::ViewportController> controller3_;
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135 OrthancStone::MessageBroker broker_;
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136
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137
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138 EM_BOOL OnWindowResize(
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139 int eventType, const EmscriptenUiEvent *uiEvent, void *userData)
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140 {
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141 if (viewport1_.get() != NULL)
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142 {
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143 viewport1_->UpdateSize();
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144 }
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145
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146 if (viewport2_.get() != NULL)
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147 {
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148 viewport2_->UpdateSize();
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149 }
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150
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151 if (viewport3_.get() != NULL)
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152 {
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153 viewport3_->UpdateSize();
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154 }
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155
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156 return true;
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157 }
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158
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159 extern "C"
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160 {
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161 int main(int argc, char const *argv[])
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162 {
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163 OrthancStone::StoneInitialize();
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164 // Orthanc::Logging::EnableInfoLevel(true);
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165 // Orthanc::Logging::EnableTraceLevel(true);
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166 EM_ASM(window.dispatchEvent(new CustomEvent("WebAssemblyLoaded")););
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167 }
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168
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169 EMSCRIPTEN_KEEPALIVE
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170 void Initialize()
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171 {
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172 viewport1_.reset(new OrthancStone::WebAssemblyViewport("mycanvas1"));
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173 PrepareScene(viewport1_->GetScene());
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174 viewport1_->UpdateSize();
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175
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176 viewport2_.reset(new OrthancStone::WebAssemblyViewport("mycanvas2"));
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177 PrepareScene(viewport2_->GetScene());
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178 viewport2_->UpdateSize();
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179
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180 viewport3_.reset(new OrthancStone::WebAssemblyViewport("mycanvas3"));
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181 PrepareScene(viewport3_->GetScene());
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182 viewport3_->UpdateSize();
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183
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184 viewport1_->GetCompositor().SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
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185 FONT_SIZE, Orthanc::Encoding_Latin1);
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186 viewport2_->GetCompositor().SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
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187 FONT_SIZE, Orthanc::Encoding_Latin1);
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188 viewport3_->GetCompositor().SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
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189 FONT_SIZE, Orthanc::Encoding_Latin1);
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190
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191 controller1_.reset(new OrthancStone::ViewportController(boost::make_shared<OrthancStone::UndoStack>(), broker_, *viewport1_));
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192 controller2_.reset(new OrthancStone::ViewportController(boost::make_shared<OrthancStone::UndoStack>(), broker_, *viewport2_));
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193 controller3_.reset(new OrthancStone::ViewportController(boost::make_shared<OrthancStone::UndoStack>(), broker_, *viewport3_));
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194
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195 SetupEvents("mycanvas1", controller1_);
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196 SetupEvents("mycanvas2", controller2_);
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197 SetupEvents("mycanvas3", controller3_);
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198
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199 emscripten_set_resize_callback("#window", NULL, false, OnWindowResize);
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200 }
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201 }