Mercurial > hg > orthanc-stone
annotate Framework/Scene2DViewport/LineMeasureTool.cpp @ 886:5cfb479fdbde am-dev
fix BasicScene WASM sample
author | Alain Mazy <alain@mazy.be> |
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date | Tue, 09 Jul 2019 17:36:47 +0200 |
parents | c71ef52602a0 |
children | 0aff28f15ea2 |
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) 2017-2019 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 "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 |
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26 #include <Core/Logging.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 |
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33 LineMeasureTool::LineMeasureTool( |
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34 MessageBroker& broker, boost::weak_ptr<ViewportController> controllerW) |
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35 : MeasureTool(broker, controllerW) |
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36 , layerHolder_(boost::make_shared<LayerHolder>(controllerW, 1, 5)) |
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37 , lineHighlightArea_(LineHighlightArea_None) |
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38 { |
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39 |
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40 } |
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41 |
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42 LineMeasureTool::~LineMeasureTool() |
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43 { |
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44 // this measuring tool is a RABI for the corresponding visual layers |
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45 // stored in the 2D scene |
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46 Disable(); |
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47 RemoveFromScene(); |
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48 } |
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49 |
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50 void LineMeasureTool::RemoveFromScene() |
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51 { |
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52 if (layerHolder_->AreLayersCreated() && IsSceneAlive()) |
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53 { |
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54 layerHolder_->DeleteLayers(); |
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55 } |
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56 } |
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57 |
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58 void LineMeasureTool::SetStart(ScenePoint2D start) |
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59 { |
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60 start_ = start; |
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61 RefreshScene(); |
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62 } |
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63 |
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64 void LineMeasureTool::SetEnd(ScenePoint2D end) |
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65 { |
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66 end_ = end; |
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67 RefreshScene(); |
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68 } |
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69 |
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70 void LineMeasureTool::Set(ScenePoint2D start, ScenePoint2D end) |
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71 { |
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72 start_ = start; |
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73 end_ = end; |
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74 RefreshScene(); |
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75 } |
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76 |
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77 void LineMeasureTool::SetLineHighlightArea(LineHighlightArea area) |
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78 { |
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79 if (lineHighlightArea_ != area) |
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80 { |
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81 lineHighlightArea_ = area; |
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82 RefreshScene(); |
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83 } |
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84 } |
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85 |
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86 void LineMeasureTool::ResetHighlightState() |
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87 { |
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88 SetLineHighlightArea(LineHighlightArea_None); |
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89 } |
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90 |
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91 void LineMeasureTool::Highlight(ScenePoint2D p) |
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92 { |
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93 LineHighlightArea lineHighlightArea = LineHitTest(p); |
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94 SetLineHighlightArea(lineHighlightArea); |
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95 } |
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96 |
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97 LineMeasureTool::LineHighlightArea LineMeasureTool::LineHitTest(ScenePoint2D p) const |
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98 { |
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99 const double pixelToScene = |
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100 GetScene()->GetCanvasToSceneTransform().ComputeZoom(); |
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101 const double SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD = pixelToScene * HIT_TEST_MAX_DISTANCE_CANVAS_COORD * pixelToScene * HIT_TEST_MAX_DISTANCE_CANVAS_COORD; |
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102 |
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103 const double sqDistanceFromStart = ScenePoint2D::SquaredDistancePtPt(p, start_); |
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104 if (sqDistanceFromStart <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD) |
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105 return LineHighlightArea_Start; |
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106 |
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107 const double sqDistanceFromEnd = ScenePoint2D::SquaredDistancePtPt(p, end_); |
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108 if (sqDistanceFromEnd <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD) |
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109 return LineHighlightArea_End; |
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110 |
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111 const double sqDistanceFromPtSegment = ScenePoint2D::SquaredDistancePtSegment(start_, end_, p); |
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112 if (sqDistanceFromPtSegment <= SQUARED_HIT_TEST_MAX_DISTANCE_SCENE_COORD) |
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113 return LineHighlightArea_Segment; |
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114 |
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115 return LineHighlightArea_None; |
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116 } |
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117 |
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118 bool LineMeasureTool::HitTest(ScenePoint2D p) const |
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119 { |
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120 return LineHitTest(p) != LineHighlightArea_None; |
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121 } |
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122 |
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123 boost::shared_ptr<IFlexiblePointerTracker> LineMeasureTool::CreateEditionTracker(const PointerEvent& e) |
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124 { |
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125 ScenePoint2D scenePos = e.GetMainPosition().Apply( |
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126 GetScene()->GetCanvasToSceneTransform()); |
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127 |
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128 if (!HitTest(scenePos)) |
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129 return boost::shared_ptr<IFlexiblePointerTracker>(); |
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130 |
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131 /** |
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132 new EditLineMeasureTracker( |
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133 boost::shared_ptr<LineMeasureTool> measureTool; |
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134 MessageBroker & broker, |
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135 boost::weak_ptr<ViewportController> controllerW, |
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136 const PointerEvent & e); |
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137 */ |
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138 boost::shared_ptr<EditLineMeasureTracker> editLineMeasureTracker( |
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139 new EditLineMeasureTracker(shared_from_this(), GetBroker(), GetController(), e)); |
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140 return editLineMeasureTracker; |
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141 } |
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142 |
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143 |
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144 boost::shared_ptr<MeasureToolMemento> LineMeasureTool::GetMemento() const |
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145 { |
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146 boost::shared_ptr<LineMeasureToolMemento> memento(new LineMeasureToolMemento()); |
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147 memento->start_ = start_; |
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148 memento->end_ = end_; |
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149 return memento; |
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150 } |
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151 |
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152 void LineMeasureTool::SetMemento(boost::shared_ptr<MeasureToolMemento> mementoBase) |
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153 { |
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154 boost::shared_ptr<LineMeasureToolMemento> memento = boost::dynamic_pointer_cast<LineMeasureToolMemento>(mementoBase); |
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155 ORTHANC_ASSERT(memento.get() != NULL, "Internal error: wrong (or bad) memento"); |
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156 start_ = memento->start_; |
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157 end_ = memento->end_; |
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158 RefreshScene(); |
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159 } |
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160 |
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161 void LineMeasureTool::RefreshScene() |
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162 { |
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163 if (IsSceneAlive()) |
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164 { |
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165 if (IsEnabled()) |
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166 { |
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167 layerHolder_->CreateLayersIfNeeded(); |
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168 |
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169 { |
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170 // Fill the polyline layer with the measurement line |
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171 |
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172 PolylineSceneLayer* polylineLayer = layerHolder_->GetPolylineLayer(0); |
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173 polylineLayer->ClearAllChains(); |
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174 |
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175 const Color color(TOOL_LINES_COLOR_RED, |
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176 TOOL_LINES_COLOR_GREEN, |
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177 TOOL_LINES_COLOR_BLUE); |
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178 |
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179 const Color highlightColor(TOOL_LINES_HL_COLOR_RED, |
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180 TOOL_LINES_HL_COLOR_GREEN, |
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181 TOOL_LINES_HL_COLOR_BLUE); |
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182 |
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183 { |
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184 PolylineSceneLayer::Chain chain; |
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185 chain.push_back(start_); |
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186 chain.push_back(end_); |
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187 if(lineHighlightArea_ == LineHighlightArea_Segment) |
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188 polylineLayer->AddChain(chain, false, highlightColor); |
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189 else |
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190 polylineLayer->AddChain(chain, false, color); |
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191 } |
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192 |
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193 // handles |
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194 { |
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195 { |
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196 PolylineSceneLayer::Chain chain; |
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197 |
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198 //TODO: take DPI into account |
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199 AddSquare(chain, GetScene(), start_, |
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200 GetController()->GetHandleSideLengthS()); |
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201 |
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202 if (lineHighlightArea_ == LineHighlightArea_Start) |
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203 polylineLayer->AddChain(chain, true, highlightColor); |
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204 else |
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205 polylineLayer->AddChain(chain, true, color); |
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206 } |
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207 |
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208 { |
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209 PolylineSceneLayer::Chain chain; |
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210 |
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211 //TODO: take DPI into account |
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212 AddSquare(chain, GetScene(), end_, |
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213 GetController()->GetHandleSideLengthS()); |
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214 |
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215 if (lineHighlightArea_ == LineHighlightArea_End) |
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216 polylineLayer->AddChain(chain, true, highlightColor); |
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217 else |
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218 polylineLayer->AddChain(chain, true, color); |
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219 } |
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220 } |
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221 |
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222 } |
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223 { |
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224 // Set the text layer propreties |
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225 double deltaX = end_.GetX() - start_.GetX(); |
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226 double deltaY = end_.GetY() - start_.GetY(); |
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227 double squareDist = deltaX * deltaX + deltaY * deltaY; |
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228 double dist = sqrt(squareDist); |
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229 char buf[64]; |
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230 sprintf(buf, "%0.02f mm", dist); |
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231 |
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232 // TODO: for now we simply position the text overlay at the middle |
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233 // of the measuring segment |
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234 double midX = 0.5 * (end_.GetX() + start_.GetX()); |
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235 double midY = 0.5 * (end_.GetY() + start_.GetY()); |
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236 |
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237 SetTextLayerOutlineProperties( |
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238 GetScene(), layerHolder_, buf, ScenePoint2D(midX, midY)); |
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239 } |
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240 } |
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241 else |
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242 { |
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243 RemoveFromScene(); |
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244 } |
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245 } |
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246 } |
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247 } |