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annotate Framework/Viewport/WebAssemblyViewport.h @ 1072:391fb6d6905d

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OrthancMultiframeVolumeLoader asks volume image to compute range + added IsContextLost to wasm viewport + added "computeRange" bool property to DicomVolumeImage + added ability to ask the MPR slicer for its source volume (to retrieve voxel value range)
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 16 Oct 2019 15:43:21 +0200
parents af456106576c
children a28861abf888 ce3052f28f2e
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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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20
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21
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22 #pragma once
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23
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24 #include "../OpenGL/WebAssemblyOpenGLContext.h"
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25 #include "../Scene2D/OpenGLCompositor.h"
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26 #include "../Scene2D/CairoCompositor.h"
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27 #include "ViewportBase.h"
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28
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29 namespace OrthancStone
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30 {
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31 class WebAssemblyViewport : public ViewportBase
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32 {
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33 private:
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34 std::string canvasIdentifier_;
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35
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36 public:
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37 WebAssemblyViewport(const std::string& canvasIdentifier) :
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38 canvasIdentifier_(canvasIdentifier)
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39 {
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40 }
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41
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42 WebAssemblyViewport(const std::string& canvasIdentifier,
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43 boost::shared_ptr<Scene2D>& scene) :
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44 ViewportBase(scene),
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45 canvasIdentifier_(canvasIdentifier)
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46 {
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47 }
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48
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49 const std::string& GetCanvasIdentifier() const
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50 {
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51 return canvasIdentifier_;
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52 }
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53 };
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54
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55
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56 class WebAssemblyOpenGLViewport : public WebAssemblyViewport
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57 {
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58 private:
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59 OpenGL::WebAssemblyOpenGLContext context_;
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60 std::auto_ptr<OpenGLCompositor> compositor_;
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61
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62 public:
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63 WebAssemblyOpenGLViewport(const std::string& canvas);
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64
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65 WebAssemblyOpenGLViewport(const std::string& canvas,
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66 boost::shared_ptr<Scene2D>& scene);
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67
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68 // This function must be called each time the browser window is resized
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69 void UpdateSize();
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70
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71 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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72 {
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73 return (compositor_.get() != NULL);
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74 }
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75
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76 bool IsContextLost()
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77 {
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78 return context_.IsContextLost();
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79 }
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80
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81 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE;
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82
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83 virtual void Refresh() ORTHANC_OVERRIDE;
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84
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85 // this does NOT return whether the context is lost! This is called to
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86 // tell Stone that the context has been lost
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87 bool OpenGLContextLost();
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88
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89 // This should be called to indicate that the context has been lost
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90 bool OpenGLContextRestored();
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92 private:
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93 void DisableCompositor();
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94 void RestoreCompositor();
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95
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96 void RegisterContextCallbacks();
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97 };
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98
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99
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100 class WebAssemblyCairoViewport : public WebAssemblyViewport
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101 {
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102 private:
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103 CairoCompositor compositor_;
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104 std::string canvas_;
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105
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106 public:
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107 WebAssemblyCairoViewport(const std::string& canvas);
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108
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109 WebAssemblyCairoViewport(const std::string& canvas,
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110 boost::shared_ptr<Scene2D>& scene);
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111
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112 void UpdateSize();
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113
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114 virtual void Refresh() ORTHANC_OVERRIDE;
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115
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116 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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117 {
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118 return true;
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119 }
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120
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121 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE
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122 {
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123 return compositor_;
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124 }
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125 };
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126 }