Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/ViewportController.cpp @ 1203:f3bb9a6dd949 broker

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locking abstraction in IViewport
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 29 Nov 2019 21:22:21 +0100
parents e713f1a99861
children 00e6bff9ea39
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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 "ViewportController.h"
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22
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23 #include "UndoStack.h"
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24 #include "MeasureCommands.h"
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25
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26 #include "../StoneException.h"
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27
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28 #include <boost/make_shared.hpp>
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29
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30 namespace OrthancStone
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31 {
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32 ViewportController::ViewportController(boost::weak_ptr<UndoStack> undoStackW,
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33 IViewport& viewport)
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34 : undoStackW_(undoStackW)
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35 , canvasToSceneFactor_(0.0)
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36 , viewport_(viewport)
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37 {
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38 }
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39
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40 ViewportController::~ViewportController()
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41 {
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42
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43 }
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44
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45 boost::shared_ptr<UndoStack> ViewportController::GetUndoStack()
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46 {
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47 return undoStackW_.lock();
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48 }
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49
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50 boost::shared_ptr<const UndoStack> ViewportController::GetUndoStack() const
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51 {
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52 return undoStackW_.lock();
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53 }
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54
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55 void ViewportController::PushCommand(boost::shared_ptr<MeasureCommand> command)
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56 {
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57 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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58 if(undoStack.get() != NULL)
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59 undoStack->PushCommand(command);
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60 else
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61 {
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62 LOG(ERROR) << "Internal error: no undo stack in the viewport controller!";
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63 }
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64 }
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65
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66 void ViewportController::Undo()
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67 {
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68 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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69 if (undoStack.get() != NULL)
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70 undoStack->Undo();
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71 else
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72 {
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73 LOG(ERROR) << "Internal error: no undo stack in the viewport controller!";
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74 }
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75 }
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76
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77 void ViewportController::Redo()
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78 {
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79 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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80 if (undoStack.get() != NULL)
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81 undoStack->Redo();
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82 else
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83 {
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84 LOG(ERROR) << "Internal error: no undo stack in the viewport controller!";
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85 }
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86 }
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87
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88 bool ViewportController::CanUndo() const
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90 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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91 if (undoStack.get() != NULL)
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92 return undoStack->CanUndo();
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93 else
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94 {
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95 LOG(ERROR) << "Internal error: no undo stack in the viewport controller!";
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96 return false;
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97 }
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98 }
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99
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100 bool ViewportController::CanRedo() const
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101 {
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102 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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103 if (undoStack.get() != NULL)
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104 return undoStack->CanRedo();
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105 else
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106 {
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107 LOG(ERROR) << "Internal error: no undo stack in the viewport controller!";
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108 return false;
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109 }
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110 }
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111
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112 bool ViewportController::HandlePointerEvent(PointerEvent e)
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113 {
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114 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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115 }
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116
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117 std::vector<boost::shared_ptr<MeasureTool> > ViewportController::HitTestMeasureTools(
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118 ScenePoint2D p)
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119 {
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120 std::vector<boost::shared_ptr<MeasureTool> > ret;
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121
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122 for (size_t i = 0; i < measureTools_.size(); ++i)
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123 {
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124 if (measureTools_[i]->HitTest(p))
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125 ret.push_back(measureTools_[i]);
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126 }
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127 return ret;
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128 }
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129
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130
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131 void ViewportController::ResetMeasuringToolsHighlight()
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132 {
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133 for (size_t i = 0; i < measureTools_.size(); ++i)
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134 {
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135 measureTools_[i]->ResetHighlightState();
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136 }
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137 }
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138
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139 OrthancStone::AffineTransform2D ViewportController::GetCanvasToSceneTransform() const
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140 {
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141 std::auto_ptr<IViewport::ILock> lock(viewport_.Lock());
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142 return lock->GetScene().GetCanvasToSceneTransform();
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143 }
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144
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145 OrthancStone::AffineTransform2D ViewportController::GetSceneToCanvasTransform() const
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146 {
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147 std::auto_ptr<IViewport::ILock> lock(viewport_.Lock());
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148 return lock->GetScene().GetSceneToCanvasTransform();
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149 }
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150
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151 void ViewportController::SetSceneToCanvasTransform(
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152 const AffineTransform2D& transform)
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153 {
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154 {
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155 std::auto_ptr<IViewport::ILock> lock(viewport_.Lock());
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156 lock->GetScene().SetSceneToCanvasTransform(transform);
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157 }
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158
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159 BroadcastMessage(SceneTransformChanged(*this));
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160
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161 // update the canvas to scene factor
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162 canvasToSceneFactor_ = 0.0;
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163 canvasToSceneFactor_ = GetCanvasToSceneFactor();
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164 }
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165
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166 void ViewportController::FitContent(
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167 unsigned int canvasWidth, unsigned int canvasHeight)
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168 {
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169 {
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170 std::auto_ptr<IViewport::ILock> lock(viewport_.Lock());
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171 lock->GetScene().FitContent(canvasWidth, canvasHeight);
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172 }
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173
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174 BroadcastMessage(SceneTransformChanged(*this));
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175 }
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176
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177 void ViewportController::FitContent()
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178 {
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179 std::auto_ptr<IViewport::ILock> lock(viewport_.Lock());
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180
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181 if (lock->HasCompositor())
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182 {
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183 const ICompositor& compositor = lock->GetCompositor();
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184 lock->GetScene().FitContent(compositor.GetCanvasWidth(), compositor.GetCanvasHeight());
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185 BroadcastMessage(SceneTransformChanged(*this));
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186 }
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187 }
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188
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189 void ViewportController::AddMeasureTool(boost::shared_ptr<MeasureTool> measureTool)
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190 {
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191 ORTHANC_ASSERT(std::find(measureTools_.begin(), measureTools_.end(), measureTool)
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192 == measureTools_.end(), "Duplicate measure tool");
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193 measureTools_.push_back(measureTool);
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194 }
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195
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196 void ViewportController::RemoveMeasureTool(boost::shared_ptr<MeasureTool> measureTool)
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197 {
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198 ORTHANC_ASSERT(std::find(measureTools_.begin(), measureTools_.end(), measureTool)
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199 != measureTools_.end(), "Measure tool not found");
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200 measureTools_.erase(
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201 std::remove(measureTools_.begin(), measureTools_.end(), measureTool),
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202 measureTools_.end());
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203 }
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204
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205
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206 double ViewportController::GetCanvasToSceneFactor() const
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207 {
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208 if (canvasToSceneFactor_ == 0)
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209 {
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210 std::auto_ptr<IViewport::ILock> lock(viewport_.Lock());
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211 canvasToSceneFactor_ = lock->GetScene().GetCanvasToSceneTransform().ComputeZoom();
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212 }
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213 return canvasToSceneFactor_;
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214 }
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215
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216 double ViewportController::GetHandleSideLengthS() const
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217 {
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218 return HANDLE_SIDE_LENGTH_CANVAS_COORD * GetCanvasToSceneFactor();
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219 }
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220
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221 double ViewportController::GetAngleToolArcRadiusS() const
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222 {
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223 return ARC_RADIUS_CANVAS_COORD * GetCanvasToSceneFactor();
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224 }
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225
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226 double ViewportController::GetHitTestMaximumDistanceS() const
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227 {
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228 return HIT_TEST_MAX_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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229 }
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230
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231 double ViewportController::GetAngleTopTextLabelDistanceS() const
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232 {
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233 return TEXT_CENTER_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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234 }
698
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235 }