Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Scene2DViewport/ViewportController.cpp @ 1866:c26c18e876e3

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fix compatibility with C++03 in unit tests
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 10 Dec 2021 11:37:36 +0100
parents 1125793d82d3
children 3889ae96d2e9
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) 2017-2021 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 Lesser 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 * Lesser 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 Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22 #include "ViewportController.h"
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23
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24 #include "../StoneException.h" // For ORTHANC_ASSERT
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25 #include "MeasureCommands.h"
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26 #include "UndoStack.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<IViewport> viewport)
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33 : scene_(new Scene2D)
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34 , viewport_(viewport)
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35 , canvasToSceneFactor_(1)
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36 {
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37 // undoStack_ is not default-initialized, which basically means empty.
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38 // The controller must be able to cope with this.
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39 }
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40
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41 ViewportController::~ViewportController()
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42 {
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43 }
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44
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45 void ViewportController::PushCommand(
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46 boost::shared_ptr<MeasureCommand> command)
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47 {
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48 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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49 if (undoStack.get() != NULL)
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50 {
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51 undoStack->PushCommand(command);
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52 }
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53 else
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54 {
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55 LOG(ERROR) << "Internal error: no undo stack!";
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56 }
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57 }
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58
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59 void ViewportController::Undo()
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60 {
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61 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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62 if (undoStack.get() != NULL)
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64 undoStack->Undo();
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65 }
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66 else
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67 {
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68 LOG(ERROR) << "Internal error: no undo stack!";
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69 }
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70 }
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71
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72 void ViewportController::Redo()
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74 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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75 if (undoStack.get() != NULL)
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77 undoStack->Redo();
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78 }
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79 else
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80 {
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81 LOG(ERROR) << "Internal error: no undo stack!";
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82 }
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83 }
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84
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85 bool ViewportController::CanUndo() const
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87 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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88 if (undoStack.get() != NULL)
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90 return undoStack->CanUndo();
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91 }
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92 else
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93 {
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94 return false;
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95 }
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96 }
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97
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98 bool ViewportController::CanRedo() const
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100 boost::shared_ptr<UndoStack> undoStack = undoStackW_.lock();
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101 if (undoStack.get() != NULL)
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103 return undoStack->CanRedo();
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104 }
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105 else
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106 {
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107 return false;
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108 }
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109 }
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110
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111 std::vector<boost::shared_ptr<MeasureTool> >
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112 ViewportController::HitTestMeasureTools(ScenePoint2D p)
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113 {
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114 std::vector<boost::shared_ptr<MeasureTool> > ret;
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115
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116 for (size_t i = 0; i < measureTools_.size(); ++i)
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117 {
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118 if (measureTools_[i]->HitTest(p))
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119 ret.push_back(measureTools_[i]);
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120 }
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121 return ret;
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122 }
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123
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124 void ViewportController::ResetMeasuringToolsHighlight()
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125 {
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126 for (size_t i = 0; i < measureTools_.size(); ++i)
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127 {
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128 measureTools_[i]->ResetHighlightState();
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129 }
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130 }
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131
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132 AffineTransform2D
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133 ViewportController::GetCanvasToSceneTransform() const
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134 {
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135 return scene_->GetCanvasToSceneTransform();
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136 }
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137
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138 AffineTransform2D
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139 ViewportController::GetSceneToCanvasTransform() const
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140 {
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141 return scene_->GetSceneToCanvasTransform();
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142 }
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143
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144 void ViewportController::SetSceneToCanvasTransform(
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145 const AffineTransform2D& transform)
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146 {
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147 scene_->SetSceneToCanvasTransform(transform);
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148
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149 canvasToSceneFactor_ = scene_->GetCanvasToSceneTransform().ComputeZoom();
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150 BroadcastMessage(SceneTransformChanged(*this));
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151 }
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152
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153 void ViewportController::BroadcastGrayscaleWindowingChanged(double windowingCenter,
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154 double windowingWidth)
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155 {
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156 BroadcastMessage(GrayscaleWindowingChanged(*this, windowingCenter, windowingWidth));
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157 }
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158
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159 void ViewportController::FitContent(unsigned int viewportWidth,
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160 unsigned int viewportHeight)
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161 {
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162 scene_->FitContent(viewportWidth, viewportHeight);
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163 canvasToSceneFactor_ = scene_->GetCanvasToSceneTransform().ComputeZoom();
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164 BroadcastMessage(SceneTransformChanged(*this));
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165 }
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166
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167 void ViewportController::AddMeasureTool(
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168 boost::shared_ptr<MeasureTool> measureTool)
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169 {
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170 ORTHANC_ASSERT(std::find(measureTools_.begin(),
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171 measureTools_.end(),
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172 measureTool) == measureTools_.end(),
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173 "Duplicate measure tool");
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174 measureTools_.push_back(measureTool);
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175 }
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176
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177 void ViewportController::RemoveMeasureTool(
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178 boost::shared_ptr<MeasureTool> measureTool)
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179 {
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180 ORTHANC_ASSERT(std::find(measureTools_.begin(),
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181 measureTools_.end(),
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182 measureTool) != measureTools_.end(),
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183 "Measure tool not found");
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184 measureTools_.erase(
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185 std::remove(measureTools_.begin(), measureTools_.end(), measureTool),
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186 measureTools_.end());
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187 }
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188
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189 double ViewportController::GetCanvasToSceneFactor() const
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190 {
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191 return canvasToSceneFactor_;
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192 }
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193
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194 double ViewportController::GetHandleSideLengthS() const
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195 {
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196 return HANDLE_SIDE_LENGTH_CANVAS_COORD * GetCanvasToSceneFactor();
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197 }
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198
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199 double ViewportController::GetAngleToolArcRadiusS() const
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200 {
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201 return ARC_RADIUS_CANVAS_COORD * GetCanvasToSceneFactor();
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202 }
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203
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204 double ViewportController::GetHitTestMaximumDistanceS() const
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205 {
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206 return HIT_TEST_MAX_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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207 }
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208
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209 double ViewportController::GetAngleTopTextLabelDistanceS() const
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210 {
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211 return TEXT_CENTER_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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212 }
1208
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213
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214
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215 void ViewportController::HandleMousePress(IViewportInteractor& interactor,
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216 const PointerEvent& event,
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217 unsigned int viewportWidth,
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218 unsigned int viewportHeight)
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219 {
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220 if (activeTracker_)
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221 {
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222 // We are dealing with a multi-stage tracker (that is made of several
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223 // interactions)
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224 activeTracker_->PointerDown(event);
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225
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226 if (!activeTracker_->IsAlive())
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227 {
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228 activeTracker_.reset();
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229 }
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230 }
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231 else
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232 {
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233 // Check whether there is already a measure tool at that position
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234 for (size_t i = 0; i < measureTools_.size(); ++i)
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235 {
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236 if (measureTools_[i]->HitTest(event.GetMainPosition()))
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237 {
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238 activeTracker_ = measureTools_[i]->CreateEditionTracker(event);
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239 return;
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240 }
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241 }
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242
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243 // No measure tool, create new tracker from the interactor
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244 activeTracker_.reset(interactor.CreateTracker(viewport_,
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245 event,
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246 viewportWidth,
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247 viewportHeight));
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248 }
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249 }
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250
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251 bool ViewportController::HandleMouseMove(const PointerEvent& event)
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252 {
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253 if (activeTracker_)
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254 {
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255 activeTracker_->PointerMove(event);
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256 return true;
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257 }
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258 else
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259 {
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260 return false;
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261 }
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262 }
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263
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264 void ViewportController::HandleMouseRelease(const PointerEvent& event)
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265 {
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266 if (activeTracker_)
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267 {
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268 activeTracker_->PointerUp(event);
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269
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270 if (!activeTracker_->IsAlive())
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271 {
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272 activeTracker_.reset();
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273 }
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274 }
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275 }
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276 }