Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Scene2DViewport/MeasureTrackers.cpp @ 2075:d84bdcbd8bf1

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allow negative values in Grid Frame Offset Vector (3004, 000c)
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Jul 2023 13:20:20 +0200
parents 5a434f5889f8
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
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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 "MeasureTrackers.h"
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24 #include <OrthancException.h>
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25
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26 namespace OrthancStone
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27 {
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28
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29 CreateMeasureTracker::CreateMeasureTracker(boost::weak_ptr<IViewport> viewport) :
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30 commitResult_(true),
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31 viewport_(viewport),
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32 alive_(true)
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33 {
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34 }
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35
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36 IViewport::ILock* CreateMeasureTracker::GetViewportLock()
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37 {
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38 boost::shared_ptr<IViewport> viewport = viewport_.lock();
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39 if (viewport)
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40 return viewport->Lock();
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41 else
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42 return NULL;
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43 }
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44
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45 void CreateMeasureTracker::Cancel(const Scene2D& scene)
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46 {
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47 commitResult_ = false;
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48 alive_ = false;
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49 }
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50
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51 bool CreateMeasureTracker::IsAlive() const
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52 {
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53 return alive_;
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54 }
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55
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56 CreateMeasureTracker::~CreateMeasureTracker()
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57 {
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58 // if the tracker completes successfully, we add the command
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59 // to the undo stack
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60 // otherwise, we simply undo it
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61
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62 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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64 if(lock)
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65 {
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66 if (commitResult_)
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67 lock->GetController().PushCommand(command_);
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68 else
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69 command_->Undo();
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70
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71 lock->Invalidate();
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72 }
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73 }
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74
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75 EditMeasureTracker::EditMeasureTracker(boost::weak_ptr<IViewport> viewport,
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76 const PointerEvent& e) :
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77 commitResult_(true),
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78 viewport_(viewport),
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79 alive_(true)
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80 {
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81 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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82
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83 originalClickPosition_ = e.GetMainPosition().Apply(
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84 lock->GetController().GetScene().GetCanvasToSceneTransform());
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85 }
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86
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87 IViewport::ILock* EditMeasureTracker::GetViewportLock()
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88 {
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89 boost::shared_ptr<IViewport> viewport = viewport_.lock();
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90 if (viewport)
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91 return viewport->Lock();
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92 else
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93 return NULL;
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94 }
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95
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96 void EditMeasureTracker::Cancel(const Scene2D& scene)
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97 {
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98 commitResult_ = false;
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99 alive_ = false;
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100 }
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101
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102 bool EditMeasureTracker::IsAlive() const
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103 {
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104 return alive_;
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105 }
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106
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107 EditMeasureTracker::~EditMeasureTracker()
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108 {
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109 // if the tracker completes successfully, we add the command
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110 // to the undo stack
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111 // otherwise, we simply undo it
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112
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113 std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
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114
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115 if(lock)
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116 {
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117 if (commitResult_)
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118 lock->GetController().PushCommand(command_);
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119 else
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120 command_->Undo();
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121
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122 lock->Invalidate();
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123 }
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124 }
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125 }
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127