Mercurial > hg > orthanc-stone
annotate Framework/Scene2DViewport/ViewportController.h @ 888:6e888cf6a48b
renderers now have access to canvas width/height
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 10 Jul 2019 11:58:38 +0200 |
parents | a29c13497557 |
children | 0aff28f15ea2 |
rev | line source |
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698
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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 #pragma once |
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22 |
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23 #include "PredeclaredTypes.h" |
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24 |
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25 #include "../Scene2D/Scene2D.h" |
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26 #include "../Scene2D/PointerEvent.h" |
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27 #include "../Scene2DViewport/IFlexiblePointerTracker.h" |
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28 |
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29 #include <stack> |
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30 |
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31 namespace OrthancStone |
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32 { |
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33 class UndoStack; |
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34 |
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35 const double ARC_RADIUS_CANVAS_COORD = 30.0; |
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36 const double TEXT_CENTER_DISTANCE_CANVAS_COORD = 90; |
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37 |
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38 const double HANDLE_SIDE_LENGTH_CANVAS_COORD = 10.0; |
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39 const double HIT_TEST_MAX_DISTANCE_CANVAS_COORD = 15.0; |
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40 |
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41 const uint8_t TEXT_COLOR_RED = 0; |
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42 const uint8_t TEXT_COLOR_GREEN = 223; |
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43 const uint8_t TEXT_COLOR_BLUE = 81; |
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44 |
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45 const uint8_t TOOL_ANGLE_LINES_COLOR_RED = 0; |
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46 const uint8_t TOOL_ANGLE_LINES_COLOR_GREEN = 183; |
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47 const uint8_t TOOL_ANGLE_LINES_COLOR_BLUE = 17; |
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48 |
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49 const uint8_t TOOL_ANGLE_LINES_HL_COLOR_RED = 0; |
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50 const uint8_t TOOL_ANGLE_LINES_HL_COLOR_GREEN = 17; |
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51 const uint8_t TOOL_ANGLE_LINES_HL_COLOR_BLUE = 183; |
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52 |
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53 const uint8_t TOOL_LINES_COLOR_RED = 0; |
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54 const uint8_t TOOL_LINES_COLOR_GREEN = 223; |
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55 const uint8_t TOOL_LINES_COLOR_BLUE = 21; |
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56 |
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57 const uint8_t TOOL_LINES_HL_COLOR_RED = 0; |
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58 const uint8_t TOOL_LINES_HL_COLOR_GREEN = 21; |
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59 const uint8_t TOOL_LINES_HL_COLOR_BLUE = 223; |
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60 |
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61 const uint8_t TEXT_OUTLINE_COLOR_RED = 0; |
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62 const uint8_t TEXT_OUTLINE_COLOR_GREEN = 56; |
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63 const uint8_t TEXT_OUTLINE_COLOR_BLUE = 21; |
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64 |
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65 /** |
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66 This object is responsible for hosting a scene, responding to messages from |
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67 the model and updating the scene accordingly. |
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68 |
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69 It contains the list of active measuring tools as well as the stack |
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70 where measuring tool commands are stored. |
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71 |
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72 The active tracker is also stored in the viewport controller. |
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73 |
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74 Each canvas or other GUI area where we want to display a 2D image, either |
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75 directly or through slicing must be assigned a ViewportController. |
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76 */ |
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77 class ViewportController : public IObservable |
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78 { |
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79 public: |
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80 ORTHANC_STONE_DEFINE_ORIGIN_MESSAGE(__FILE__, __LINE__, \ |
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81 SceneTransformChanged, ViewportController); |
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82 |
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83 ViewportController(boost::weak_ptr<UndoStack> undoStackW, MessageBroker& broker); |
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84 |
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85 boost::shared_ptr<const Scene2D> GetScene() const; |
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86 boost::shared_ptr<Scene2D> GetScene(); |
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87 |
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88 /** |
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89 This method is called by the GUI system and should update/delete the |
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90 current tracker |
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91 */ |
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92 bool HandlePointerEvent(PointerEvent e); |
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93 |
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94 /** |
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95 This method returns the list of measure tools containing the supplied point |
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96 (in scene coords). A tracker can then be requested from the chosen |
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97 measure tool, if needed |
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98 */ |
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99 std::vector<boost::shared_ptr<MeasureTool> > HitTestMeasureTools(ScenePoint2D p); |
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100 |
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101 /** |
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102 This function will traverse the measuring tools and will clear their |
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103 highlighted state |
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104 */ |
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105 void ResetMeasuringToolsHighlight(); |
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106 |
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107 /** |
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108 With this method, the object takes ownership of the supplied tracker and |
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109 updates it according to user interaction |
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110 */ |
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111 void SetActiveTracker(boost::shared_ptr<IFlexiblePointerTracker> tracker); |
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112 |
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113 /** Forwarded to the underlying scene */ |
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114 const AffineTransform2D& GetCanvasToSceneTransform() const; |
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115 |
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116 /** Forwarded to the underlying scene */ |
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117 const AffineTransform2D& GetSceneToCanvasTransform() const; |
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118 |
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119 /** Forwarded to the underlying scene, and broadcasted to the observers */ |
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120 void SetSceneToCanvasTransform(const AffineTransform2D& transform); |
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121 |
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122 /** Forwarded to the underlying scene, and broadcasted to the observers */ |
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123 void FitContent(unsigned int canvasWidth, unsigned int canvasHeight); |
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124 |
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125 /** Adds a new measure tool */ |
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126 void AddMeasureTool(boost::shared_ptr<MeasureTool> measureTool); |
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127 |
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128 /** Removes a measure tool or throws if it cannot be found */ |
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129 void RemoveMeasureTool(boost::shared_ptr<MeasureTool> measureTool); |
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130 |
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131 /** |
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132 The square handle side length in *scene* coordinates |
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133 */ |
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134 double GetHandleSideLengthS() const; |
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135 |
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136 /** |
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137 The angle measure too arc radius in *scene* coordinates |
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138 |
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139 Note: you might wonder why this is not part of the AngleMeasureTool itself, |
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140 but we prefer to put all such constants in the same location, to ease |
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141 */ |
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142 double GetAngleToolArcRadiusS() const; |
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143 |
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144 /** |
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145 The hit test maximum distance in *scene* coordinates. |
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146 If a pointer event is less than GetHandleSideLengthS() to a GUI element, |
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147 the hit test for this GUI element is seen as true |
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148 */ |
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149 double GetHitTestMaximumDistanceS() const; |
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150 |
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151 /** |
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152 Distance between the top of the angle measuring tool and the center of |
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153 the label showing the actual measure, in *scene* coordinates |
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154 */ |
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155 double GetAngleTopTextLabelDistanceS() const; |
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156 |
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157 |
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158 /** forwarded to the UndoStack */ |
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159 void PushCommand(boost::shared_ptr<TrackerCommand> command); |
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160 |
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161 /** forwarded to the UndoStack */ |
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162 void Undo(); |
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163 |
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164 /** forwarded to the UndoStack */ |
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165 void Redo(); |
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166 |
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167 /** forwarded to the UndoStack */ |
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168 bool CanUndo() const; |
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169 |
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170 /** forwarded to the UndoStack */ |
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171 bool CanRedo() const; |
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172 |
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173 |
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174 private: |
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175 double GetCanvasToSceneFactor() const; |
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176 |
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177 boost::weak_ptr<UndoStack> undoStackW_; |
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178 |
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179 boost::shared_ptr<UndoStack> GetUndoStack(); |
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180 boost::shared_ptr<const UndoStack> GetUndoStack() const; |
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181 |
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182 std::vector<boost::shared_ptr<MeasureTool> > measureTools_; |
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183 boost::shared_ptr<Scene2D> scene_; |
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184 boost::shared_ptr<IFlexiblePointerTracker> tracker_; |
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185 |
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186 // this is cached |
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187 mutable double canvasToSceneFactor_; |
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188 }; |
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189 } |