Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/ViewportController.cpp @ 891:0aff28f15ea2

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new abstraction: IViewport
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 10 Jul 2019 18:18:42 +0200
parents a29c13497557
children 0c5201499af8
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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 "ViewportController.h"
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22
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23 #include "UndoStack.h"
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24 #include "MeasureCommands.h"
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25
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26 #include "../StoneException.h"
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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<UndoStack> undoStackW,
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33 MessageBroker& broker,
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34 IViewport& viewport)
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35 : IObservable(broker)
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36 , undoStackW_(undoStackW)
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37 , canvasToSceneFactor_(0.0)
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38 , viewport_(viewport)
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39 , scene_(viewport.GetScene())
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40 {
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41 }
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42
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43 boost::shared_ptr<UndoStack> ViewportController::GetUndoStack()
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44 {
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45 return undoStackW_.lock();
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46 }
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47
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48 boost::shared_ptr<const UndoStack> ViewportController::GetUndoStack() const
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49 {
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50 return undoStackW_.lock();
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51 }
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52
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53 void ViewportController::PushCommand(boost::shared_ptr<TrackerCommand> command)
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54 {
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55 GetUndoStack()->PushCommand(command);
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56 }
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57
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58 void ViewportController::Undo()
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59 {
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60 GetUndoStack()->Undo();
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61 }
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62
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63 void ViewportController::Redo()
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64 {
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65 GetUndoStack()->Redo();
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66 }
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67
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68 bool ViewportController::CanUndo() const
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69 {
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70 return GetUndoStack()->CanUndo();
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71 }
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72
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73 bool ViewportController::CanRedo() const
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74 {
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75 return GetUndoStack()->CanRedo();
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76 }
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77
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78 bool ViewportController::HandlePointerEvent(PointerEvent e)
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79 {
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80 throw StoneException(ErrorCode_NotImplemented);
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81 }
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82
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83 std::vector<boost::shared_ptr<MeasureTool> > ViewportController::HitTestMeasureTools(
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84 ScenePoint2D p)
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85 {
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86 std::vector<boost::shared_ptr<MeasureTool> > ret;
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87
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88 for (size_t i = 0; i < measureTools_.size(); ++i)
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89 {
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90 if (measureTools_[i]->HitTest(p))
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91 ret.push_back(measureTools_[i]);
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92 }
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93 return ret;
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94 }
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95
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96
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97 void ViewportController::ResetMeasuringToolsHighlight()
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98 {
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99 for (size_t i = 0; i < measureTools_.size(); ++i)
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100 {
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101 measureTools_[i]->ResetHighlightState();
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102 }
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103 }
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104
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105 const OrthancStone::AffineTransform2D& ViewportController::GetCanvasToSceneTransform() const
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106 {
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107 return GetScene().GetCanvasToSceneTransform();
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108 }
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109
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110 const OrthancStone::AffineTransform2D& ViewportController::GetSceneToCanvasTransform() const
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111 {
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112 return GetScene().GetSceneToCanvasTransform();
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113 }
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114
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115 void ViewportController::SetSceneToCanvasTransform(
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116 const AffineTransform2D& transform)
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117 {
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118 viewport_.GetScene().SetSceneToCanvasTransform(transform);
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119 BroadcastMessage(SceneTransformChanged(*this));
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120
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121 // update the canvas to scene factor
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122 canvasToSceneFactor_ = 0.0;
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123 canvasToSceneFactor_ = GetCanvasToSceneFactor();
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124 }
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125
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126 void ViewportController::FitContent(
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127 unsigned int canvasWidth, unsigned int canvasHeight)
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128 {
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129 viewport_.GetScene().FitContent(canvasWidth, canvasHeight);
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130 BroadcastMessage(SceneTransformChanged(*this));
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131 }
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132
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133 void ViewportController::AddMeasureTool(boost::shared_ptr<MeasureTool> measureTool)
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134 {
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135 ORTHANC_ASSERT(std::find(measureTools_.begin(), measureTools_.end(), measureTool)
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136 == measureTools_.end(), "Duplicate measure tool");
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137 measureTools_.push_back(measureTool);
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138 }
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139
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140 void ViewportController::RemoveMeasureTool(boost::shared_ptr<MeasureTool> measureTool)
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141 {
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142 ORTHANC_ASSERT(std::find(measureTools_.begin(), measureTools_.end(), measureTool)
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143 != measureTools_.end(), "Measure tool not found");
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144 measureTools_.erase(
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145 std::remove(measureTools_.begin(), measureTools_.end(), measureTool),
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146 measureTools_.end());
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147 }
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148
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149
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150 double ViewportController::GetCanvasToSceneFactor() const
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151 {
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152 if (canvasToSceneFactor_ == 0)
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153 {
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154 canvasToSceneFactor_ =
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155 GetScene().GetCanvasToSceneTransform().ComputeZoom();
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156 }
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157 return canvasToSceneFactor_;
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158 }
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159
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160 double ViewportController::GetHandleSideLengthS() const
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161 {
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162 return HANDLE_SIDE_LENGTH_CANVAS_COORD * GetCanvasToSceneFactor();
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163 }
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164
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165 double ViewportController::GetAngleToolArcRadiusS() const
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166 {
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167 return ARC_RADIUS_CANVAS_COORD * GetCanvasToSceneFactor();
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168 }
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169
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170 double ViewportController::GetHitTestMaximumDistanceS() const
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171 {
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172 return HIT_TEST_MAX_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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173 }
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174
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175 double ViewportController::GetAngleTopTextLabelDistanceS() const
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176 {
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177 return TEXT_CENTER_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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178 }
698
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parents:
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179 }
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180