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annotate OrthancStone/Sources/Scene2D/Internals/CompositorHelper.h @ 1571:85e117739eca

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 21 Sep 2020 17:46:39 +0200
parents 244ad1e4e76a
children 4fb8fdf03314
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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) 2017-2020 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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22 #pragma once
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24 #include "../Scene2D.h"
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25 #include "../ScenePoint2D.h"
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26
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27 #include <Compatibility.h> // For ORTHANC_OVERRIDE
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28
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29 #include <boost/noncopyable.hpp>
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30 #include <map>
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31
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32 namespace OrthancStone
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33 {
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34 namespace Internals
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35 {
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36 class CompositorHelper : protected Scene2D::IVisitor
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37 {
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38 public:
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39 class ILayerRenderer : public boost::noncopyable
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40 {
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41 public:
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42 virtual ~ILayerRenderer()
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43 {
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44 }
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45
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46 virtual void Render(const AffineTransform2D& transform,
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47 unsigned int canvasWidth,
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48 unsigned int canvasHeight) = 0;
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49
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50 // "Update()" is only called if the type of the layer has not changed
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51 virtual void Update(const ISceneLayer& layer) = 0;
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52 };
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53
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54 class IRendererFactory : public boost::noncopyable
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55 {
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56 public:
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57 virtual ~IRendererFactory()
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58 {
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59 }
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60
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61 virtual ILayerRenderer* Create(const ISceneLayer& layer) = 0;
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62 };
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64 private:
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65 class Item;
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66
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67 typedef std::map<int, Item*> Content;
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68
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69 IRendererFactory& factory_;
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70 Content content_;
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71 const Scene2D* lastScene_; // This is only a safeguard, don't use it!
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73 // Only valid during a call to Refresh()
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74 AffineTransform2D sceneTransform_;
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75 unsigned int canvasWidth_;
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76 unsigned int canvasHeight_;
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77
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78 protected:
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79 virtual void Visit(const Scene2D& scene,
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80 const ISceneLayer& layer,
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81 uint64_t layerIdentifier,
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82 int depth) ORTHANC_OVERRIDE;
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83
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84 public:
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85 explicit CompositorHelper(IRendererFactory& factory) :
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86 factory_(factory),
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87 lastScene_(NULL),
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88 canvasWidth_(0),
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89 canvasHeight_(0)
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90 {
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91 }
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92
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93 ~CompositorHelper();
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95 void Refresh(const Scene2D& scene,
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96 unsigned int canvasWidth,
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97 unsigned int canvasHeight);
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98 };
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99 }
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100 }