Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/CreateAngleMeasureTracker.cpp @ 765:f6438fdc447e

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 23 May 2019 14:57:52 +0200
parents 8e31b174ab26
children e42b491f1fb2
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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 "CreateAngleMeasureTracker.h"
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22 #include <Core/OrthancException.h>
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23
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24 namespace OrthancStone
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25 {
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26 CreateAngleMeasureTracker::CreateAngleMeasureTracker(
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27 MessageBroker& broker,
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28 ViewportControllerWPtr controllerW,
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29 const PointerEvent& e)
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30 : CreateMeasureTracker(controllerW)
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31 , state_(CreatingSide1)
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32 {
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33 command_.reset(
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34 new CreateAngleMeasureCommand(
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35 broker,
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36 controllerW,
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37 e.GetMainPosition().Apply(GetScene()->GetCanvasToSceneTransform())));
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38 }
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39
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40 CreateAngleMeasureTracker::~CreateAngleMeasureTracker()
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41 {
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42 }
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43
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44 void CreateAngleMeasureTracker::PointerMove(const PointerEvent& event)
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45 {
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46 assert(GetScene());
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47
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48 if (!alive_)
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49 {
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50 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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51 "Internal error: wrong state in CreateAngleMeasureTracker::"
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52 "PointerMove: active_ == false");
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53 }
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54
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55 ScenePoint2D scenePos = event.GetMainPosition().Apply(
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56 GetScene()->GetCanvasToSceneTransform());
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57
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58 switch (state_)
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59 {
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60 case CreatingSide1:
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61 GetCommand()->SetCenter(scenePos);
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62 break;
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63 case CreatingSide2:
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64 GetCommand()->SetSide2End(scenePos);
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65 break;
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66 default:
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67 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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68 "Wrong state in CreateAngleMeasureTracker::"
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69 "PointerMove: state_ invalid");
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70 }
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71 //LOG(TRACE) << "scenePos.GetX() = " << scenePos.GetX() << " " <<
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72 // "scenePos.GetY() = " << scenePos.GetY();
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73 }
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74
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75 void CreateAngleMeasureTracker::PointerUp(const PointerEvent& e)
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76 {
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77 // TODO: the current app does not prevent multiple PointerDown AND
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78 // PointerUp to be sent to the tracker.
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79 // Unless we augment the PointerEvent structure with the button index,
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80 // we cannot really tell if this pointer up event matches the initial
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81 // pointer down event. Let's make it simple for now.
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82
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83 switch (state_)
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84 {
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85 case CreatingSide1:
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86 state_ = CreatingSide2;
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87 break;
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88 case CreatingSide2:
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89 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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90 "Wrong state in CreateAngleMeasureTracker::"
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91 "PointerUp: state_ == CreatingSide2 ; this should not happen");
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92 break;
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93 default:
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94 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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95 "Wrong state in CreateAngleMeasureTracker::"
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96 "PointerMove: state_ invalid");
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97 }
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98 }
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99
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100 void CreateAngleMeasureTracker::PointerDown(const PointerEvent& e)
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101 {
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102 switch (state_)
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103 {
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104 case CreatingSide1:
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105 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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106 "Wrong state in CreateAngleMeasureTracker::"
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107 "PointerDown: state_ == CreatingSide1 ; this should not happen");
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108 break;
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109 case CreatingSide2:
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110 // we are done
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111 alive_ = false;
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112 break;
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113 default:
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114 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
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115 "Wrong state in CreateAngleMeasureTracker::"
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116 "PointerMove: state_ invalid");
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117 }
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118 }
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119
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120 CreateAngleMeasureCommandPtr CreateAngleMeasureTracker::GetCommand()
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121 {
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122 return boost::dynamic_pointer_cast<CreateAngleMeasureCommand>(command_);
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123 }
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124
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125 }