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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 Osimis, 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/ILayerSource.h"
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26
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27 #include <map>
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28
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29 namespace OrthancStone
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30 {
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31 class LayerWidget :
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32 public WorldSceneWidget,
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33 public ILayerSource::IObserver // TODO move this as PImpl
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34 {
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35 private:
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36 class Scene;
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37
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38 typedef std::map<ILayerSource*, size_t> LayersIndex;
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39
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40 bool started_;
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41 LayersIndex layersIndex_;
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42 std::vector<ILayerSource*> layers_;
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43 std::vector<RenderStyle> styles_;
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44 SliceGeometry slice_;
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45 double sliceThickness_;
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46 std::auto_ptr<Scene> currentScene_;
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47 std::auto_ptr<Scene> pendingScene_;
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48
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49
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50 bool LookupLayer(size_t& index /* out */,
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51 ILayerSource& layer) const;
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52
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53
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54 protected:
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55 virtual void GetSceneExtent(double& x1,
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56 double& y1,
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57 double& x2,
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58 double& y2);
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59
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60 virtual bool RenderScene(CairoContext& context,
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61 const ViewportGeometry& view);
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62
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63 void ResetPendingScene();
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64
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65 void UpdateLayer(size_t index,
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66 ILayerRenderer* renderer,
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67 const SliceGeometry& slice);
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68
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69 public:
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70 LayerWidget();
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71
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72 virtual ~LayerWidget();
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73
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74 size_t AddLayer(ILayerSource* layer); // Takes ownership
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75
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76 void SetLayerStyle(size_t layer,
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77 const RenderStyle& style);
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78
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79 void SetSlice(const SliceGeometry& slice,
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80 double sliceThickness);
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81
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82 virtual void NotifyGeometryReady(ILayerSource& source);
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83
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84 virtual void NotifySourceChange(ILayerSource& source);
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85
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86 virtual void NotifySliceChange(ILayerSource& source,
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87 const SliceGeometry& slice);
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88
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89 virtual void NotifyLayerReady(ILayerRenderer* renderer,
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90 ILayerSource& source,
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91 const SliceGeometry& viewportSlice);
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92
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93 virtual void NotifyLayerError(ILayerSource& source,
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94 const SliceGeometry& viewportSlice);
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95
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96 virtual void Start();
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97 };
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98 }
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