Mercurial > hg > orthanc-stone

annotate Samples/Sdl/FusionMprSdl.h @ 872:733c6db3e5a3 am-dev

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author Alain Mazy <alain@mazy.be>
date Mon, 01 Jul 2019 13:36:51 +0200
parents e3c56d4f863f
children eaaa9b574e05
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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 "../../Framework/Messages/IObserver.h"
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22 #include "../../Framework/Messages/IMessageEmitter.h"
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23 #include "../../Framework/Oracle/OracleCommandExceptionMessage.h"
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24 #include "../../Framework/Scene2DViewport/ViewportController.h"
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25 #include "../../Framework/Volumes/DicomVolumeImage.h"
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26 #include "../../Framework/Oracle/ThreadedOracle.h"
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28 #include <boost/enable_shared_from_this.hpp>
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29 #include <boost/thread.hpp>
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30 #include <boost/noncopyable.hpp>
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31
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32 #include <SDL.h>
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33
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34 namespace OrthancStone
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35 {
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36 class OpenGLCompositor;
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37 class IVolumeSlicer;
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38 class ILayerStyleConfigurator;
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39 class DicomStructureSetLoader;
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40 class IOracle;
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41 class ThreadedOracle;
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42 class VolumeSceneLayerSource;
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43 class NativeFusionMprApplicationContext;
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44
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45
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46 enum FusionMprGuiTool
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47 {
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48 FusionMprGuiTool_Rotate = 0,
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49 FusionMprGuiTool_Pan,
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50 FusionMprGuiTool_Zoom,
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51 FusionMprGuiTool_LineMeasure,
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52 FusionMprGuiTool_CircleMeasure,
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53 FusionMprGuiTool_AngleMeasure,
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54 FusionMprGuiTool_EllipseMeasure,
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55 FusionMprGuiTool_LAST
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56 };
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57
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58 const char* MeasureToolToString(size_t i);
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59
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60 static const unsigned int FONT_SIZE_0 = 32;
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61 static const unsigned int FONT_SIZE_1 = 24;
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62
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63 class Scene2D;
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64 class UndoStack;
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65
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66 /**
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67 This application subclasses IMessageEmitter to use a mutex before forwarding Oracle messages (that
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68 can be sent from multiple threads)
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69 */
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70 class FusionMprSdlApp : public IObserver
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71 , public boost::enable_shared_from_this<FusionMprSdlApp>
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72 , public IMessageEmitter
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73 {
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74 public:
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75 // 12 because.
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76 FusionMprSdlApp(MessageBroker& broker);
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77
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78 void PrepareScene();
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79 void Run();
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80 void SetInfoDisplayMessage(std::string key, std::string value);
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81 void DisableTracker();
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82
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83 boost::shared_ptr<Scene2D> GetScene();
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84 boost::shared_ptr<const Scene2D> GetScene() const;
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85
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86 void HandleApplicationEvent(const SDL_Event& event);
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87
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88 /**
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89 This method is called when the scene transform changes. It allows to
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90 recompute the visual elements whose content depend upon the scene transform
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91 */
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92 void OnSceneTransformChanged(
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93 const ViewportController::SceneTransformChanged& message);
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94
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95
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96 virtual void EmitMessage(const IObserver& observer,
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97 const IMessage& message) ORTHANC_OVERRIDE
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98 {
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99 try
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100 {
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101 boost::unique_lock<boost::shared_mutex> lock(mutex_);
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102 oracleObservable_.EmitMessage(observer, message);
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103 }
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104 catch (Orthanc::OrthancException& e)
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105 {
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106 LOG(ERROR) << "Exception while emitting a message: " << e.What();
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107 throw;
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108 }
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109 }
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110
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111 private:
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112 #if 1
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113 // if threaded (not wasm)
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114 MessageBroker& broker_;
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115 IObservable oracleObservable_;
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116 ThreadedOracle oracle_;
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117 boost::shared_mutex mutex_; // to serialize messages from the ThreadedOracle
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118 #endif
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119
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120 void SelectNextTool();
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121
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122 /**
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123 This returns a random point in the canvas part of the scene, but in
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124 scene coordinates
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125 */
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126 ScenePoint2D GetRandomPointInScene() const;
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127
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128 boost::shared_ptr<IFlexiblePointerTracker> TrackerHitTest(const PointerEvent& e);
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129
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130 boost::shared_ptr<IFlexiblePointerTracker> CreateSuitableTracker(
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131 const SDL_Event& event,
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132 const PointerEvent& e);
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133
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134 void TakeScreenshot(
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135 const std::string& target,
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136 unsigned int canvasWidth,
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137 unsigned int canvasHeight);
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138
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139 /**
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140 This adds the command at the top of the undo stack
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141 */
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142 void Commit(boost::shared_ptr<TrackerCommand> cmd);
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143 void Undo();
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144 void Redo();
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145
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146
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147 // TODO private
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148 void Handle(const DicomVolumeImage::GeometryReadyMessage& message);
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149 void Handle(const OracleCommandExceptionMessage& message);
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150
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151 void SetVolume1(
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152 int depth,
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153 const boost::shared_ptr<IVolumeSlicer>& volume,
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154 ILayerStyleConfigurator* style);
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155
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156 void SetVolume2(
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157 int depth,
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158 const boost::shared_ptr<IVolumeSlicer>& volume,
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159 ILayerStyleConfigurator* style);
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160
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161 void SetStructureSet(
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162 int depth,
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163 const boost::shared_ptr<DicomStructureSetLoader>& volume);
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164
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165
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166
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167 private:
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168 void DisplayFloatingCtrlInfoText(const PointerEvent& e);
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169 void DisplayInfoText();
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170 void HideInfoText();
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171
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172 private:
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173 CoordinateSystem3D plane_;
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174
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175 boost::shared_ptr<VolumeSceneLayerSource> source1_, source2_, source3_;
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176
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177 std::auto_ptr<OpenGLCompositor> compositor_;
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178 /**
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179 WARNING: the measuring tools do store a reference to the scene, and it
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180 paramount that the scene gets destroyed AFTER the measurement tools.
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181 */
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182 boost::shared_ptr<ViewportController> controller_;
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183
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184 std::map<std::string, std::string> infoTextMap_;
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185 boost::shared_ptr<IFlexiblePointerTracker> activeTracker_;
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186
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187 //static const int LAYER_POSITION = 150;
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188
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189 int TEXTURE_2x2_1_ZINDEX;
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190 int TEXTURE_1x1_ZINDEX;
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191 int TEXTURE_2x2_2_ZINDEX;
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192 int LINESET_1_ZINDEX;
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193 int LINESET_2_ZINDEX;
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194 int FLOATING_INFOTEXT_LAYER_ZINDEX;
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195 int FIXED_INFOTEXT_LAYER_ZINDEX;
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196
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197 FusionMprGuiTool currentTool_;
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198 boost::shared_ptr<UndoStack> undoStack_;
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199
827
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200 };
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201
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202 }
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203
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204
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205