Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/ViewportController.cpp @ 858:e3c56d4f863f

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GuiAdapter : mouse event routing in SDL + split the undo stack from the ViewportController for multi-canvas apps + adapted the samples to this change
author Benjamin Golinvaux <bgo@osimis.io>
date Mon, 24 Jun 2019 10:31:04 +0200
parents 2b245953b44b
children a29c13497557
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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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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 ViewportController::ViewportController(boost::weak_ptr<UndoStack> undoStackW, MessageBroker& broker)
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33 : IObservable(broker)
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34 , undoStackW_(undoStackW)
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35 , canvasToSceneFactor_(0.0)
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36 {
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37 scene_ = boost::make_shared<Scene2D>();
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38 }
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39
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40 boost::shared_ptr<UndoStack> ViewportController::GetUndoStack()
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41 {
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42 return undoStackW_.lock();
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43 }
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44
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45 boost::shared_ptr<const UndoStack> ViewportController::GetUndoStack() const
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46 {
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47 return undoStackW_.lock();
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48 }
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49
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50 void ViewportController::PushCommand(boost::shared_ptr<TrackerCommand> command)
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51 {
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52 GetUndoStack()->PushCommand(command);
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53 }
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54
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55 void ViewportController::Undo()
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56 {
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57 GetUndoStack()->Undo();
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58 }
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59
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60 void ViewportController::Redo()
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61 {
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62 GetUndoStack()->Redo();
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63 }
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64
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65 bool ViewportController::CanUndo() const
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66 {
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67 return GetUndoStack()->CanUndo();
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68 }
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69
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70 bool ViewportController::CanRedo() const
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71 {
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72 return GetUndoStack()->CanRedo();
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73 }
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74
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75 boost::shared_ptr<const Scene2D> ViewportController::GetScene() const
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76 {
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77 return scene_;
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78 }
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79
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80 boost::shared_ptr<Scene2D> ViewportController::GetScene()
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81 {
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82 return scene_;
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83 }
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84
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85 bool ViewportController::HandlePointerEvent(PointerEvent e)
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86 {
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87 throw StoneException(ErrorCode_NotImplemented);
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88 }
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89
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90 std::vector<boost::shared_ptr<MeasureTool> > ViewportController::HitTestMeasureTools(
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91 ScenePoint2D p)
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92 {
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93 std::vector<boost::shared_ptr<MeasureTool> > ret;
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94
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95 for (size_t i = 0; i < measureTools_.size(); ++i)
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96 {
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97 if (measureTools_[i]->HitTest(p))
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98 ret.push_back(measureTools_[i]);
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99 }
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100 return ret;
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101 }
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102
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103 const OrthancStone::AffineTransform2D& ViewportController::GetCanvasToSceneTransform() const
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104 {
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105 return scene_->GetCanvasToSceneTransform();
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106 }
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107
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108 const OrthancStone::AffineTransform2D& ViewportController::GetSceneToCanvasTransform() const
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109 {
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110 return scene_->GetSceneToCanvasTransform();
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111 }
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112
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113 void ViewportController::SetSceneToCanvasTransform(
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114 const AffineTransform2D& transform)
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115 {
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116 scene_->SetSceneToCanvasTransform(transform);
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117 BroadcastMessage(SceneTransformChanged(*this));
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118
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119 // update the canvas to scene factor
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120 canvasToSceneFactor_ = 0.0;
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121 canvasToSceneFactor_ = GetCanvasToSceneFactor();
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122 }
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123
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124 void ViewportController::FitContent(
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125 unsigned int canvasWidth, unsigned int canvasHeight)
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126 {
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127 scene_->FitContent(canvasWidth, canvasHeight);
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128 BroadcastMessage(SceneTransformChanged(*this));
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129 }
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130
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131 void ViewportController::AddMeasureTool(boost::shared_ptr<MeasureTool> measureTool)
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132 {
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133 ORTHANC_ASSERT(std::find(measureTools_.begin(), measureTools_.end(), measureTool)
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134 == measureTools_.end(), "Duplicate measure tool");
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135 measureTools_.push_back(measureTool);
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136 }
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137
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138 void ViewportController::RemoveMeasureTool(boost::shared_ptr<MeasureTool> measureTool)
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139 {
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140 ORTHANC_ASSERT(std::find(measureTools_.begin(), measureTools_.end(), measureTool)
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141 != measureTools_.end(), "Measure tool not found");
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142 measureTools_.erase(
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143 std::remove(measureTools_.begin(), measureTools_.end(), measureTool),
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144 measureTools_.end());
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145 }
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146
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147
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148 double ViewportController::GetCanvasToSceneFactor() const
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149 {
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150 if (canvasToSceneFactor_ == 0)
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151 {
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152 canvasToSceneFactor_ =
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153 GetScene()->GetCanvasToSceneTransform().ComputeZoom();
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154 }
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155 return canvasToSceneFactor_;
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156 }
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157
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158 double ViewportController::GetHandleSideLengthS() const
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159 {
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160 return HANDLE_SIDE_LENGTH_CANVAS_COORD * GetCanvasToSceneFactor();
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161 }
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162
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163 double ViewportController::GetAngleToolArcRadiusS() const
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164 {
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165 return ARC_RADIUS_CANVAS_COORD * GetCanvasToSceneFactor();
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166 }
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167
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168 double ViewportController::GetHitTestMaximumDistanceS() const
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169 {
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170 return HIT_TEST_MAX_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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171 }
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172
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173 double ViewportController::GetAngleTopTextLabelDistanceS() const
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174 {
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175 return TEXT_CENTER_DISTANCE_CANVAS_COORD * GetCanvasToSceneFactor();
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176 }
698
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177 }
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178