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annotate OrthancStone/Sources/Scene2D/MacroSceneLayer.h @ 1870:3889ae96d2e9

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added copyright UCLouvain
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Jan 2022 11:04:09 +0100
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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) 2017-2021 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2021 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
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24 #pragma once
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25
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26 #include "ISceneLayer.h"
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27
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28 #include <Compatibility.h> // For ORTHANC_OVERRIDE
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29
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30 #include <deque>
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31 #include <set>
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32
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33 namespace OrthancStone
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34 {
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35 /**
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36 * A "macro layer" is a group of sublayers that are handled as a
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37 * whole, and that share the same depth in the scene.
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38 **/
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39 class MacroSceneLayer : public ISceneLayer
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40 {
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41 private:
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42 // A deque is used because we need to quickly add new layers, and
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43 // to randomly access the layers
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44 std::deque<ISceneLayer*> layers_;
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45 uint64_t revision_;
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46 std::set<size_t> recycledLayers_;
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47
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48 void CheckInvariant() const;
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49
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50 protected:
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51 void BumpRevision()
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52 {
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53 // this is *not* thread-safe!!! => (SJO) no problem, Stone assumes mono-threading
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54 revision_++;
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55 }
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56
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57 public:
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58 MacroSceneLayer() :
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59 revision_(0)
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60 {
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61 }
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62
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63 virtual ~MacroSceneLayer()
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64 {
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65 Clear();
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66 }
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68 void Clear();
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69
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70 size_t AddLayer(ISceneLayer* layer); // takes ownership
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71
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72 size_t GetSize() const
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73 {
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74 return layers_.size();
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75 }
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76
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77 void UpdateLayer(size_t index,
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78 ISceneLayer* layer); // takes ownership
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79
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80 bool HasLayer(size_t index) const;
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81
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82 void DeleteLayer(size_t index);
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83
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84 const ISceneLayer& GetLayer(size_t i) const;
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85
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86 virtual ISceneLayer* Clone() const ORTHANC_OVERRIDE;
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87
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88 virtual Type GetType() const ORTHANC_OVERRIDE
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89 {
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90 return Type_Macro;
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91 }
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92
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93 virtual void GetBoundingBox(Extent2D& target) const ORTHANC_OVERRIDE;
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94
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95 virtual uint64_t GetRevision() const ORTHANC_OVERRIDE
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96 {
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97 return revision_;
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98 }
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99 };
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100 }