Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2DViewport/LineMeasureTool.cpp @ 1909:782ba9eb6f22
improved variable names
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 01 Feb 2022 08:56:36 +0100 |
parents | 7053b8a0aaec |
children | 07964689cb0b |
rev | line source |
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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) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 #include "LineMeasureTool.h" |
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24 #include "MeasureToolsToolbox.h" |
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25 #include "EditLineMeasureTracker.h" |
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26 #include "LayerHolder.h" |
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27 #include "../StoneException.h" |
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28 |
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29 #include <Logging.h> |
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30 |
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31 #include <boost/make_shared.hpp> |
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32 |
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33 namespace OrthancStone |
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34 { |
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35 LineMeasureTool::LineMeasureTool( |
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36 boost::weak_ptr<IViewport> viewport): |
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38 #if ORTHANC_STONE_ENABLE_OUTLINED_TEXT == 1 |
1571 | 39 layerHolder_(boost::shared_ptr<LayerHolder>(new LayerHolder(viewport,1,5))), |
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40 #else |
1571 | 41 layerHolder_(boost::shared_ptr<LayerHolder>(new LayerHolder(viewport,1,1))), |
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42 #endif |
1571 | 43 baseLayerIndex_(0), |
44 lineHighlightArea_(LineHighlightArea_None) | |
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45 { |
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46 |
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47 } |
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48 |
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49 boost::shared_ptr<LineMeasureTool> LineMeasureTool::Create(boost::weak_ptr<IViewport> viewport) |
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50 { |
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51 boost::shared_ptr<LineMeasureTool> obj(new LineMeasureTool(viewport)); |
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52 obj->MeasureTool::PostConstructor(); |
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53 obj->RefreshScene(); |
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54 return obj; |
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55 } |
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56 |
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57 LineMeasureTool::~LineMeasureTool() |
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58 { |
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59 // this measuring tool is a RABI for the corresponding visual layers |
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60 // stored in the 2D scene |
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61 Disable(); |
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62 RemoveFromScene(); |
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63 } |
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64 |
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65 void LineMeasureTool::RemoveFromScene() |
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66 { |
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67 if (layerHolder_->AreLayersCreated() && IsSceneAlive()) |
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68 { |
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69 layerHolder_->DeleteLayers(); |
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70 } |
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71 } |
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72 |
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73 void LineMeasureTool::SetStart(ScenePoint2D start) |
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74 { |
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75 start_ = start; |
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76 RefreshScene(); |
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77 } |
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78 |
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79 void LineMeasureTool::SetEnd(ScenePoint2D end) |
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80 { |
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81 end_ = end; |
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82 RefreshScene(); |
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83 } |
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84 |
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85 void LineMeasureTool::Set(ScenePoint2D start, ScenePoint2D end) |
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86 { |
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87 start_ = start; |
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88 end_ = end; |
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89 RefreshScene(); |
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90 } |
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91 |
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92 void LineMeasureTool::SetLineHighlightArea(LineHighlightArea area) |
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93 { |
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94 if (lineHighlightArea_ != area) |
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95 { |
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96 lineHighlightArea_ = area; |
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97 RefreshScene(); |
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98 } |
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99 } |
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100 |
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101 std::string LineMeasureTool::GetDescription() |
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102 { |
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103 std::stringstream ss; |
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104 ss << "LineMeasureTool. Start = " << start_ << " End = " << end_; |
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105 return ss.str(); |
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106 } |
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107 |
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108 void LineMeasureTool::ResetHighlightState() |
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109 { |
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110 SetLineHighlightArea(LineHighlightArea_None); |
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111 } |
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112 |
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113 void LineMeasureTool::Highlight(ScenePoint2D p) |
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114 { |
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115 LineHighlightArea lineHighlightArea = LineHitTest(p); |
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116 SetLineHighlightArea(lineHighlightArea); |
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117 } |
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118 |
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119 LineMeasureTool::LineHighlightArea LineMeasureTool::LineHitTest(ScenePoint2D p) |
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120 { |
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121 std::unique_ptr<IViewport::ILock> lock(GetViewportLock()); |
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122 if (lock.get() != NULL) |
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123 { |
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124 ViewportController& controller = lock->GetController(); |
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125 const Scene2D& scene = controller.GetScene(); |
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126 |
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127 const double pixelToScene = scene.GetCanvasToSceneTransform().ComputeZoom(); |
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128 const double SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD = |
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129 pixelToScene * HIT_TEST_MAX_DISTANCE_CANVAS_COORD * |
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130 pixelToScene * HIT_TEST_MAX_DISTANCE_CANVAS_COORD; |
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131 |
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132 const double sqDistanceFromStart = |
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133 ScenePoint2D::SquaredDistancePtPt(p, start_); |
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134 |
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135 if (sqDistanceFromStart <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD) |
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136 return LineHighlightArea_Start; |
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137 |
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138 const double sqDistanceFromEnd = ScenePoint2D::SquaredDistancePtPt(p, end_); |
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139 |
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140 if (sqDistanceFromEnd <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD) |
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141 return LineHighlightArea_End; |
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142 |
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143 const double sqDistanceFromPtSegment = |
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144 ScenePoint2D::SquaredDistancePtSegment(start_, end_, p); |
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145 |
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146 if (sqDistanceFromPtSegment <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD) |
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147 return LineHighlightArea_Segment; |
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148 } |
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149 |
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150 return LineHighlightArea_None; |
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151 } |
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152 |
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153 bool LineMeasureTool::HitTest(ScenePoint2D p) |
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154 { |
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155 return LineHitTest(p) != LineHighlightArea_None; |
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156 } |
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157 |
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158 boost::shared_ptr<IFlexiblePointerTracker> LineMeasureTool::CreateEditionTracker(const PointerEvent& e) |
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159 { |
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160 std::unique_ptr<IViewport::ILock> lock(GetViewportLock()); |
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161 if (lock.get() != NULL) |
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162 { |
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163 ViewportController& controller = lock->GetController(); |
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164 const Scene2D& scene = controller.GetScene(); |
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165 |
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166 ScenePoint2D scenePos = e.GetMainPosition().Apply( |
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167 scene.GetCanvasToSceneTransform()); |
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168 |
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169 if (!HitTest(scenePos)) |
1794 | 170 { |
171 return boost::shared_ptr<IFlexiblePointerTracker>(); // NULL | |
172 } | |
173 else | |
174 { | |
175 boost::shared_ptr<EditLineMeasureTracker> editLineMeasureTracker( | |
176 new EditLineMeasureTracker(shared_from_this(), viewport_, e)); | |
177 return editLineMeasureTracker; | |
178 } | |
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179 } |
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180 else |
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181 { |
1794 | 182 return boost::shared_ptr<IFlexiblePointerTracker>(); // NULL |
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183 } |
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184 } |
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185 |
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186 MeasureToolMemento* LineMeasureTool::CreateMemento() const |
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187 { |
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188 std::unique_ptr<LineMeasureToolMemento> memento(new LineMeasureToolMemento()); |
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189 memento->start_ = start_; |
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190 memento->end_ = end_; |
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191 return memento.release(); |
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192 } |
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193 |
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194 void LineMeasureTool::SetMemento(const MeasureToolMemento& mementoBase) |
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195 { |
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196 const LineMeasureToolMemento& memento = dynamic_cast<const LineMeasureToolMemento&>(mementoBase); |
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197 start_ = memento.start_; |
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198 end_ = memento.end_; |
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199 RefreshScene(); |
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200 } |
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201 |
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202 void LineMeasureTool::RefreshScene() |
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203 { |
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204 if (IsSceneAlive()) |
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205 { |
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206 if (IsEnabled()) |
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207 { |
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208 |
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209 std::unique_ptr<IViewport::ILock> lock(GetViewportLock()); |
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210 ViewportController& controller = lock->GetController(); |
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211 Scene2D& scene = controller.GetScene(); |
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212 |
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213 layerHolder_->CreateLayersIfNeeded(); |
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214 { |
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215 // Fill the polyline layer with the measurement line |
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216 |
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217 PolylineSceneLayer* polylineLayer = layerHolder_->GetPolylineLayer(0); |
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218 if (polylineLayer) |
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219 { |
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220 polylineLayer->ClearAllChains(); |
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221 |
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222 const Color color(TOOL_LINES_COLOR_RED, |
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223 TOOL_LINES_COLOR_GREEN, |
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224 TOOL_LINES_COLOR_BLUE); |
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225 |
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226 const Color highlightColor(TOOL_LINES_HL_COLOR_RED, |
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227 TOOL_LINES_HL_COLOR_GREEN, |
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228 TOOL_LINES_HL_COLOR_BLUE); |
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229 |
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230 { |
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231 PolylineSceneLayer::Chain chain; |
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232 chain.push_back(start_); |
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233 chain.push_back(end_); |
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234 if(lineHighlightArea_ == LineHighlightArea_Segment) |
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235 polylineLayer->AddChain(chain, false, highlightColor); |
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236 else |
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237 polylineLayer->AddChain(chain, false, color); |
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238 } |
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239 |
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240 // handles |
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241 { |
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242 { |
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243 PolylineSceneLayer::Chain chain; |
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244 |
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245 //TODO: take DPI into account |
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246 AddSquare(chain, controller.GetScene(), start_, |
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247 controller.GetHandleSideLengthS()); |
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248 |
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249 if (lineHighlightArea_ == LineHighlightArea_Start) |
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250 polylineLayer->AddChain(chain, true, highlightColor); |
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251 else |
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252 polylineLayer->AddChain(chain, true, color); |
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253 } |
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254 |
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255 { |
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256 PolylineSceneLayer::Chain chain; |
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257 |
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258 //TODO: take DPI into account |
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259 AddSquare(chain, controller.GetScene(), end_, |
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260 controller.GetHandleSideLengthS()); |
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261 |
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262 if (lineHighlightArea_ == LineHighlightArea_End) |
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263 polylineLayer->AddChain(chain, true, highlightColor); |
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264 else |
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265 polylineLayer->AddChain(chain, true, color); |
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266 } |
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267 } |
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268 } |
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269 } |
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270 { |
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271 // Set the text layer propreties |
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272 double deltaX = end_.GetX() - start_.GetX(); |
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273 double deltaY = end_.GetY() - start_.GetY(); |
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274 double squareDist = deltaX * deltaX + deltaY * deltaY; |
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275 double dist = sqrt(squareDist); |
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276 char buf[64]; |
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277 sprintf(buf, "%0.02f mm", dist); |
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278 |
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279 // TODO: for now we simply position the text overlay at the middle |
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280 // of the measuring segment |
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281 double midX = 0.5 * (end_.GetX() + start_.GetX()); |
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282 double midY = 0.5 * (end_.GetY() + start_.GetY()); |
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283 |
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284 { |
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285 |
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286 #if ORTHANC_STONE_ENABLE_OUTLINED_TEXT == 1 |
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287 SetTextLayerOutlineProperties( |
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288 scene, layerHolder_, buf, ScenePoint2D(midX, midY), 0); |
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289 #else |
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290 SetTextLayerProperties( |
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291 scene, layerHolder_, buf, ScenePoint2D(midX, midY), 0); |
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292 #endif |
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293 lock->Invalidate(); |
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294 } |
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295 } |
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296 lock->Invalidate(); |
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297 } |
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298 else |
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299 { |
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300 RemoveFromScene(); |
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301 } |
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302 } |
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303 } |
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304 } |