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annotate Framework/Widgets/SliceViewerWidget.h @ 600:6129b1e5ba42

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BasicScene SDL sample
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 27 Apr 2019 12:38:25 +0200
parents 0f43e479b49c
children f0008c55e5f7
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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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b70e9be013e4 preparing for 2019
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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
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22 #pragma once
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23
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24 #include "WorldSceneWidget.h"
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25 #include "../Layers/IVolumeSlicer.h"
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26 #include "../Toolbox/Extent2D.h"
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27 #include "../../Framework/Messages/IObserver.h"
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29 #include <map>
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30
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31 namespace OrthancStone
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32 {
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33 class SliceViewerWidget :
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34 public WorldSceneWidget,
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35 public IObserver,
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36 public IObservable
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37 {
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38 public:
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39 typedef OriginMessage<MessageType_Widget_GeometryChanged, SliceViewerWidget> GeometryChangedMessage;
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40 typedef OriginMessage<MessageType_Widget_ContentChanged, SliceViewerWidget> ContentChangedMessage;
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41
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42 // TODO - Use this message in ReferenceLineSource
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43 class DisplayedSliceMessage : public OriginMessage<MessageType_SliceViewerWidget_DisplayedSlice, SliceViewerWidget>
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44 {
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45 private:
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46 const Slice& slice_;
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47
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48 public:
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49 DisplayedSliceMessage(SliceViewerWidget& origin,
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50 const Slice& slice) :
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51 OriginMessage(origin),
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52 slice_(slice)
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53 {
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54 }
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55
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56 const Slice& GetSlice() const
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57 {
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58 return slice_;
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59 }
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60 };
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61
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62 private:
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63 SliceViewerWidget(const SliceViewerWidget&);
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64 SliceViewerWidget& operator=(const SliceViewerWidget&);
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65
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66 class Scene;
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67
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68 typedef std::map<const IVolumeSlicer*, size_t> LayersIndex;
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70 bool started_;
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71 LayersIndex layersIndex_;
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72 std::vector<IVolumeSlicer*> layers_;
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73 std::vector<RenderStyle> styles_;
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74 CoordinateSystem3D plane_;
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75 std::auto_ptr<Scene> currentScene_;
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76 std::auto_ptr<Scene> pendingScene_;
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77 std::vector<bool> changedLayers_;
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78
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79 bool LookupLayer(size_t& index /* out */,
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80 const IVolumeSlicer& layer) const;
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81
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82 void GetLayerExtent(Extent2D& extent,
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83 IVolumeSlicer& source) const;
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84
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85 void OnGeometryReady(const IVolumeSlicer::GeometryReadyMessage& message);
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87 virtual void OnContentChanged(const IVolumeSlicer::ContentChangedMessage& message);
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89 virtual void OnSliceChanged(const IVolumeSlicer::SliceContentChangedMessage& message);
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91 virtual void OnLayerReady(const IVolumeSlicer::LayerReadyMessage& message);
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93 virtual void OnLayerError(const IVolumeSlicer::LayerErrorMessage& message);
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94
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95 void ObserveLayer(IVolumeSlicer& source);
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96
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97 void ResetChangedLayers();
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98
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99 public:
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100 SliceViewerWidget(MessageBroker& broker,
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101 const std::string& name);
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102
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103 virtual Extent2D GetSceneExtent();
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104
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105 protected:
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106 virtual bool RenderScene(CairoContext& context,
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107 const ViewportGeometry& view);
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108
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109 void ResetPendingScene();
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110
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111 void UpdateLayer(size_t index,
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112 ILayerRenderer* renderer,
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113 const CoordinateSystem3D& plane);
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115 void InvalidateAllLayers();
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116
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117 void InvalidateLayer(size_t layer);
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118
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119 public:
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120 virtual ~SliceViewerWidget();
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121
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122 size_t AddLayer(IVolumeSlicer* layer); // Takes ownership
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124 void ReplaceLayer(size_t layerIndex, IVolumeSlicer* layer); // Takes ownership
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125
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126 void RemoveLayer(size_t layerIndex);
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128 size_t GetLayerCount() const
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129 {
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130 return layers_.size();
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131 }
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132
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133 const RenderStyle& GetLayerStyle(size_t layer) const;
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134
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135 void SetLayerStyle(size_t layer,
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136 const RenderStyle& style);
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137
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138 void SetSlice(const CoordinateSystem3D& plane);
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139
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140 const CoordinateSystem3D& GetSlice() const
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141 {
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142 return plane_;
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143 }
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144
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145 virtual bool HasAnimation() const
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146 {
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147 return true;
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148 }
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149
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150 virtual void DoAnimation();
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151 };
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152 }