Mercurial > hg > orthanc-stone

annotate Framework/Scene2D/Internals/CompositorHelper.h @ 889:6e79e8c9021c am-dev

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integration mainline->am-dev
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 10 Jul 2019 12:05:02 +0200
parents 6176917ef890 6e888cf6a48b
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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) 2017-2019 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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22 #pragma once
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23
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24 #include "../Scene2D.h"
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25 #include "../ScenePoint2D.h"
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26 #include <boost/noncopyable.hpp>
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27
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28 #include <map>
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29
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30 namespace OrthancStone
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31 {
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32 class ICompositor : public boost::noncopyable
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33 {
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34 public:
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35 virtual ~ICompositor()
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36 {
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37 }
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38
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39 virtual unsigned int GetCanvasWidth() const = 0;
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40 virtual unsigned int GetCanvasHeight() const = 0;
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41 virtual void Refresh() = 0;
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42
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43 ScenePoint2D GetPixelCenterCoordinates(int x, int y) const
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44 {
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45 return ScenePoint2D(
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46 static_cast<double>(x) + 0.5 - static_cast<double>(GetCanvasWidth()) / 2.0,
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47 static_cast<double>(y) + 0.5 - static_cast<double>(GetCanvasHeight()) / 2.0);
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48 }
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49
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50 };
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51
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52 namespace Internals
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53 {
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54 class CompositorHelper : protected Scene2D::IVisitor
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55 {
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56 public:
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57 class ILayerRenderer : public boost::noncopyable
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58 {
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59 public:
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60 virtual ~ILayerRenderer()
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61 {
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62 }
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63
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64 virtual void Render(const AffineTransform2D& transform,
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65 unsigned int canvasWidth,
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66 unsigned int canvasHeight) = 0;
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67
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68 // "Update()" is only called if the type of the layer has not changed
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69 virtual void Update(const ISceneLayer& layer) = 0;
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70 };
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71
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72 class IRendererFactory : public boost::noncopyable
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73 {
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74 public:
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75 virtual ~IRendererFactory()
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76 {
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77 }
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78
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79 virtual ILayerRenderer* Create(const ISceneLayer& layer) = 0;
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80 };
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81
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82 private:
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83 class Item;
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84
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85 typedef std::map<int, Item*> Content;
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86
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87 const Scene2D& scene_;
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88 IRendererFactory& factory_;
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89 Content content_;
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91 // Only valid during a call to Refresh()
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92 AffineTransform2D sceneTransform_;
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93 unsigned int canvasWidth_;
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94 unsigned int canvasHeight_;
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95
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96 protected:
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97 virtual void Visit(const ISceneLayer& layer,
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98 uint64_t layerIdentifier,
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99 int depth);
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100
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101 public:
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102 CompositorHelper(const Scene2D& scene,
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103 IRendererFactory& factory) :
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104 scene_(scene),
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105 factory_(factory)
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106 {
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107 }
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108
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109 ~CompositorHelper();
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110
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111 void Refresh(unsigned int canvasWidth,
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112 unsigned int canvasHeight);
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113 };
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114 }
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115 }