Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/LineMeasureTool.cpp @ 1305:a5326ce4f24b broker

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Trackers and measuring tools now use the viewport instead of ViewportController, so that proper locks can be used
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 04 Mar 2020 09:45:38 +0100
parents 7ec8fea061b9
children 1f877e0846fe
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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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20
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21 #include "LineMeasureTool.h"
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22 #include "MeasureToolsToolbox.h"
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23 #include "EditLineMeasureTracker.h"
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24 #include "LayerHolder.h"
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25 #include "../StoneException.h"
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26
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27 #include <Core/Logging.h>
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28
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29 #include <boost/make_shared.hpp>
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30
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31 namespace OrthancStone
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32 {
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33
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34 LineMeasureTool::LineMeasureTool(
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35 IViewport& viewport)
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36 : MeasureTool(viewport)
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37 #if ORTHANC_STONE_ENABLE_OUTLINED_TEXT == 1
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38 , layerHolder_(boost::make_shared<LayerHolder>(viewport, 1, 5))
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39 #else
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40 , layerHolder_(boost::make_shared<LayerHolder>(viewport, 1, 1))
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41 #endif
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42 , lineHighlightArea_(LineHighlightArea_None)
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43 {
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45 }
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46
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47 LineMeasureTool::~LineMeasureTool()
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48 {
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49 // this measuring tool is a RABI for the corresponding visual layers
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50 // stored in the 2D scene
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51 Disable();
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52 RemoveFromScene();
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53 }
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54
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55 void LineMeasureTool::RemoveFromScene()
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56 {
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57 if (layerHolder_->AreLayersCreated() && IsSceneAlive())
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58 {
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59 layerHolder_->DeleteLayers();
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60 }
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61 }
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62
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63 void LineMeasureTool::SetStart(ScenePoint2D start)
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64 {
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65 start_ = start;
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66 RefreshScene();
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67 }
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68
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69 void LineMeasureTool::SetEnd(ScenePoint2D end)
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70 {
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71 end_ = end;
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72 RefreshScene();
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73 }
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74
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75 void LineMeasureTool::Set(ScenePoint2D start, ScenePoint2D end)
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76 {
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77 start_ = start;
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78 end_ = end;
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79 RefreshScene();
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80 }
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81
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82 void LineMeasureTool::SetLineHighlightArea(LineHighlightArea area)
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83 {
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84 if (lineHighlightArea_ != area)
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85 {
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86 lineHighlightArea_ = area;
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87 RefreshScene();
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88 }
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89 }
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90
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91 std::string LineMeasureTool::GetDescription()
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92 {
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93 std::stringstream ss;
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94 ss << "LineMeasureTool. Start = " << start_ << " End = " << end_;
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95 return ss.str();
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96 }
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97
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98 void LineMeasureTool::ResetHighlightState()
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99 {
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100 SetLineHighlightArea(LineHighlightArea_None);
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101 }
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102
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103 void LineMeasureTool::Highlight(ScenePoint2D p)
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104 {
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105 LineHighlightArea lineHighlightArea = LineHitTest(p);
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106 SetLineHighlightArea(lineHighlightArea);
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107 }
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108
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109 LineMeasureTool::LineHighlightArea LineMeasureTool::LineHitTest(ScenePoint2D p)
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110 {
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111 std::unique_ptr<IViewport::ILock> lock(viewport_.Lock());
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112 ViewportController& controller = lock->GetController();
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113 Scene2D& scene = controller.GetScene();
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114
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115 const double pixelToScene = scene.GetCanvasToSceneTransform().ComputeZoom();
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116 const double SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD =
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117 pixelToScene * HIT_TEST_MAX_DISTANCE_CANVAS_COORD *
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118 pixelToScene * HIT_TEST_MAX_DISTANCE_CANVAS_COORD;
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119
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120 const double sqDistanceFromStart =
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121 ScenePoint2D::SquaredDistancePtPt(p, start_);
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122
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123 if (sqDistanceFromStart <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD)
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124 return LineHighlightArea_Start;
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125
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126 const double sqDistanceFromEnd = ScenePoint2D::SquaredDistancePtPt(p, end_);
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127
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128 if (sqDistanceFromEnd <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD)
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129 return LineHighlightArea_End;
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130
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131 const double sqDistanceFromPtSegment =
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132 ScenePoint2D::SquaredDistancePtSegment(start_, end_, p);
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133
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134 if (sqDistanceFromPtSegment <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD)
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135 return LineHighlightArea_Segment;
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136
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137 return LineHighlightArea_None;
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138 }
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139
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140 bool LineMeasureTool::HitTest(ScenePoint2D p)
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141 {
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142 return LineHitTest(p) != LineHighlightArea_None;
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143 }
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144
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145 boost::shared_ptr<IFlexiblePointerTracker> LineMeasureTool::CreateEditionTracker(const PointerEvent& e)
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146 {
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147 std::unique_ptr<IViewport::ILock> lock(viewport_.Lock());
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148 ViewportController& controller = lock->GetController();
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149 Scene2D& scene = controller.GetScene();
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150
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151 ScenePoint2D scenePos = e.GetMainPosition().Apply(
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152 scene.GetCanvasToSceneTransform());
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153
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154 if (!HitTest(scenePos))
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155 return boost::shared_ptr<IFlexiblePointerTracker>();
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156
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157 /**
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158 new EditLineMeasureTracker(
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159 boost::shared_ptr<LineMeasureTool> measureTool;
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160 MessageBroker & broker,
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161 IViewport& viewport,
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162 const PointerEvent & e);
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163 */
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164 boost::shared_ptr<EditLineMeasureTracker> editLineMeasureTracker(
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165 new EditLineMeasureTracker(shared_from_this(), viewport_, e));
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166 return editLineMeasureTracker;
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167 }
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168
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169 boost::shared_ptr<MeasureToolMemento> LineMeasureTool::GetMemento() const
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170 {
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171 boost::shared_ptr<LineMeasureToolMemento> memento(new LineMeasureToolMemento());
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172 memento->start_ = start_;
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173 memento->end_ = end_;
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174 return memento;
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175 }
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176
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177 void LineMeasureTool::SetMemento(
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178 boost::shared_ptr<MeasureToolMemento> mementoBase)
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179 {
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180 boost::shared_ptr<LineMeasureToolMemento> memento =
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181 boost::dynamic_pointer_cast<LineMeasureToolMemento>(mementoBase);
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182
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183 ORTHANC_ASSERT(memento.get() != NULL, "Internal error: wrong (or bad) memento");
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184
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185 start_ = memento->start_;
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186 end_ = memento->end_;
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187 RefreshScene();
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188 }
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189
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190 void LineMeasureTool::RefreshScene()
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191 {
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192 if (IsSceneAlive())
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193 {
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194 if (IsEnabled())
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195 {
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196
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197 std::unique_ptr<IViewport::ILock> lock(viewport_.Lock());
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198 ViewportController& controller = lock->GetController();
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199 Scene2D& scene = controller.GetScene();
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200
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201 layerHolder_->CreateLayersIfNeeded();
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202 {
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203 // Fill the polyline layer with the measurement line
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204
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205 PolylineSceneLayer* polylineLayer = layerHolder_->GetPolylineLayer(0);
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206 if (polylineLayer)
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207 {
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208 polylineLayer->ClearAllChains();
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209
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210 const Color color(TOOL_LINES_COLOR_RED,
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211 TOOL_LINES_COLOR_GREEN,
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212 TOOL_LINES_COLOR_BLUE);
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213
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214 const Color highlightColor(TOOL_LINES_HL_COLOR_RED,
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215 TOOL_LINES_HL_COLOR_GREEN,
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216 TOOL_LINES_HL_COLOR_BLUE);
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217
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218 {
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219 PolylineSceneLayer::Chain chain;
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220 chain.push_back(start_);
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221 chain.push_back(end_);
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222 if(lineHighlightArea_ == LineHighlightArea_Segment)
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223 polylineLayer->AddChain(chain, false, highlightColor);
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224 else
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225 polylineLayer->AddChain(chain, false, color);
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226 }
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227
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228 // handles
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229 {
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230 {
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231 PolylineSceneLayer::Chain chain;
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232
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233 //TODO: take DPI into account
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234 AddSquare(chain, controller.GetScene(), start_,
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235 controller.GetHandleSideLengthS());
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236
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237 if (lineHighlightArea_ == LineHighlightArea_Start)
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238 polylineLayer->AddChain(chain, true, highlightColor);
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239 else
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240 polylineLayer->AddChain(chain, true, color);
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241 }
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242
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243 {
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244 PolylineSceneLayer::Chain chain;
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245
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246 //TODO: take DPI into account
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247 AddSquare(chain, controller.GetScene(), end_,
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248 controller.GetHandleSideLengthS());
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249
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250 if (lineHighlightArea_ == LineHighlightArea_End)
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251 polylineLayer->AddChain(chain, true, highlightColor);
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252 else
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253 polylineLayer->AddChain(chain, true, color);
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254 }
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255 }
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256 }
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257 }
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258 {
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259 // Set the text layer propreties
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260 double deltaX = end_.GetX() - start_.GetX();
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261 double deltaY = end_.GetY() - start_.GetY();
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262 double squareDist = deltaX * deltaX + deltaY * deltaY;
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263 double dist = sqrt(squareDist);
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264 char buf[64];
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265 sprintf(buf, "%0.02f mm", dist);
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266
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267 // TODO: for now we simply position the text overlay at the middle
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268 // of the measuring segment
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269 double midX = 0.5 * (end_.GetX() + start_.GetX());
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270 double midY = 0.5 * (end_.GetY() + start_.GetY());
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271
1305
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272 {
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273
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274 #if ORTHANC_STONE_ENABLE_OUTLINED_TEXT == 1
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275 SetTextLayerOutlineProperties(
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276 scene, layerHolder_, buf, ScenePoint2D(midX, midY), 0);
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277 #else
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278 SetTextLayerProperties(
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279 scene, layerHolder_, buf, ScenePoint2D(midX, midY), 0);
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280 #endif
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281 lock->Invalidate();
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282 }
698
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283 }
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284 lock->Invalidate();
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285 }
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286 else
698
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287 {
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288 RemoveFromScene();
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289 }
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290 }
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291 }
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292 }