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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) 2017-2018 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
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22 #include "RadiographyLayerMoveTracker.h"
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23
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24 #include "RadiographySceneCommand.h"
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25
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26 #include <Core/OrthancException.h>
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27
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28 namespace OrthancStone
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29 {
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30 class RadiographyLayerMoveTracker::UndoRedoCommand : public RadiographySceneCommand
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31 {
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32 private:
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33 double sourceX_;
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34 double sourceY_;
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35 double targetX_;
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36 double targetY_;
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37
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38 protected:
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39 virtual void UndoInternal(RadiographyLayer& layer) const
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40 {
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41 layer.SetPan(sourceX_, sourceY_);
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42 }
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43
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44 virtual void RedoInternal(RadiographyLayer& layer) const
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45 {
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46 layer.SetPan(targetX_, targetY_);
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47 }
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48
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49 public:
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50 UndoRedoCommand(const RadiographyLayerMoveTracker& tracker) :
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51 RadiographySceneCommand(tracker.accessor_),
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52 sourceX_(tracker.panX_),
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53 sourceY_(tracker.panY_),
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54 targetX_(tracker.accessor_.GetLayer().GetPanX()),
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55 targetY_(tracker.accessor_.GetLayer().GetPanY())
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56 {
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57 }
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58 };
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59
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60
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61 RadiographyLayerMoveTracker::RadiographyLayerMoveTracker(UndoRedoStack& undoRedoStack,
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62 RadiographyScene& scene,
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63 size_t layer,
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64 double x,
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65 double y,
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66 bool oneAxis) :
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67 undoRedoStack_(undoRedoStack),
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68 accessor_(scene, layer),
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69 clickX_(x),
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70 clickY_(y),
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71 oneAxis_(oneAxis)
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72 {
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73 if (accessor_.IsValid())
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74 {
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75 panX_ = accessor_.GetLayer().GetPanX();
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76 panY_ = accessor_.GetLayer().GetPanY();
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77 }
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78 }
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79
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80
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81 void RadiographyLayerMoveTracker::Render(CairoContext& context,
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82 double zoom)
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83 {
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84 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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85 }
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86
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87
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88 void RadiographyLayerMoveTracker::MouseUp()
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89 {
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90 if (accessor_.IsValid())
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91 {
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92 undoRedoStack_.Add(new UndoRedoCommand(*this));
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93 }
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94 }
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95
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96
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97 void RadiographyLayerMoveTracker::MouseMove(int displayX,
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98 int displayY,
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99 double sceneX,
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100 double sceneY)
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101 {
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102 if (accessor_.IsValid())
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103 {
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104 double dx = sceneX - clickX_;
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105 double dy = sceneY - clickY_;
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106
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107 if (oneAxis_)
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108 {
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109 if (fabs(dx) > fabs(dy))
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110 {
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111 accessor_.GetLayer().SetPan(dx + panX_, panY_);
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112 }
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113 else
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114 {
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115 accessor_.GetLayer().SetPan(panX_, dy + panY_);
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116 }
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117 }
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118 else
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119 {
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120 accessor_.GetLayer().SetPan(dx + panX_, dy + panY_);
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121 }
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122 }
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123 }
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124 }
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