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annotate OrthancStone/Sources/Scene2DViewport/CreateAngleMeasureTracker.cpp @ 1972:9c0adcc8feec

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refactoring to simplify OneGesturePointerTracker
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 28 Oct 2022 16:21:28 +0200
parents 7053b8a0aaec
children 07964689cb0b
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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
1871
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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 "CreateAngleMeasureTracker.h"
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24 #include "CreateAngleMeasureCommand.h"
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25
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26 #include <OrthancException.h>
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27
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28 namespace OrthancStone
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29 {
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30 CreateAngleMeasureTracker::CreateAngleMeasureTracker(boost::weak_ptr<IViewport> viewport,
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31 const PointerEvent& e) :
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32 CreateMeasureTracker(viewport),
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33 state_(CreatingSide1)
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34 {
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35 ScenePoint2D point;
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36
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37 {
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38 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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39 Scene2D& scene = lock->GetController().GetScene();
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40 point = e.GetMainPosition().Apply(scene.GetCanvasToSceneTransform());
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41 }
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42
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43 command_.reset(new CreateAngleMeasureCommand(viewport, point));
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44 }
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45
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46 CreateAngleMeasureTracker::~CreateAngleMeasureTracker()
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47 {
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48 }
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49
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50 void CreateAngleMeasureTracker::PointerMove(const PointerEvent& event,
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51 const Scene2D& scene)
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52 {
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53 if (!alive_)
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54 {
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55 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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56 "Internal error: wrong state in CreateAngleMeasureTracker::"
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57 "PointerMove: active_ == false");
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58 }
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59
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60
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61 {
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62 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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63 ViewportController& controller = lock->GetController();
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64
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65 ScenePoint2D scenePos = event.GetMainPosition().Apply(
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66 controller.GetScene().GetCanvasToSceneTransform());
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67
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68 switch (state_)
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69 {
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70 case CreatingSide1:
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71 GetCommand()->SetCenter(scenePos);
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72 break;
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73 case CreatingSide2:
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74 GetCommand()->SetSide2End(scenePos);
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75 break;
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76 default:
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77 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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78 "Wrong state in CreateAngleMeasureTracker::"
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79 "PointerMove: state_ invalid");
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80 }
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81 //LOG(TRACE) << "scenePos.GetX() = " << scenePos.GetX() << " " <<
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82 // "scenePos.GetY() = " << scenePos.GetY();
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83 lock->Invalidate();
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84 }
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85 }
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86
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87 void CreateAngleMeasureTracker::PointerUp(const PointerEvent& e,
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88 const Scene2D& scene)
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89 {
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90 // TODO: the current app does not prevent multiple PointerDown AND
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91 // PointerUp to be sent to the tracker.
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92 // Unless we augment the PointerEvent structure with the button index,
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93 // we cannot really tell if this pointer up event matches the initial
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94 // pointer down event. Let's make it simple for now.
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95
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96 switch (state_)
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97 {
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98 case CreatingSide1:
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99 state_ = CreatingSide2;
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100 break;
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101 case CreatingSide2:
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102 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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103 "Wrong state in CreateAngleMeasureTracker::"
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104 "PointerUp: state_ == CreatingSide2 ; this should not happen");
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105 break;
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106 default:
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107 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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108 "Wrong state in CreateAngleMeasureTracker::"
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109 "PointerMove: state_ invalid");
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110 }
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111 }
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112
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113 void CreateAngleMeasureTracker::PointerDown(const PointerEvent& e,
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114 const Scene2D& scene)
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115 {
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116 switch (state_)
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117 {
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118 case CreatingSide1:
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119 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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120 "Wrong state in CreateAngleMeasureTracker::"
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121 "PointerDown: state_ == CreatingSide1 ; this should not happen");
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122 break;
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123 case CreatingSide2:
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124 // we are done
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125 alive_ = false;
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126 break;
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127 default:
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128 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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129 "Wrong state in CreateAngleMeasureTracker::"
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130 "PointerMove: state_ invalid");
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131 }
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132 }
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133
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e42b491f1fb2 Removed typedefs to shared_ptr by making them explicit. Removed using namespace
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134 boost::shared_ptr<CreateAngleMeasureCommand> CreateAngleMeasureTracker::GetCommand()
698
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135 {
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136 return boost::dynamic_pointer_cast<CreateAngleMeasureCommand>(command_);
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137 }
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138
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139 }