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annotate Framework/Viewport/WebAssemblyViewport.h @ 1054:3c9529edf5fd

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fixing WebAssemblyViewport
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 10 Oct 2019 15:55:54 +0200
parents 6a9300ecfa13
children af456106576c
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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 public:
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34 WebAssemblyViewport(const std::string& identifier)
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35 : ViewportBase(identifier)
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36 {
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37 }
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38
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39 WebAssemblyViewport(const std::string& identifier,
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40 boost::shared_ptr<Scene2D>& scene)
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41 : ViewportBase(identifier, scene)
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42 {
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43 }
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44 };
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45
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46 class WebAssemblyOpenGLViewport : public WebAssemblyViewport
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47 {
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48 private:
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49 OpenGL::WebAssemblyOpenGLContext context_;
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50 std::auto_ptr<OpenGLCompositor> compositor_;
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51
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52 public:
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53 WebAssemblyOpenGLViewport(const std::string& canvas);
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54
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55 WebAssemblyOpenGLViewport(const std::string& canvas,
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56 boost::shared_ptr<Scene2D>& scene);
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57
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58 // This function must be called each time the browser window is resized
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59 void UpdateSize();
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60
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61 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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62 {
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63 return (compositor_.get() != NULL);
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64 }
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65
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66 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE;
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67
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68 virtual void Refresh() ORTHANC_OVERRIDE;
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69
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70 // this does NOT return whether the context is lost! This is called to
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71 // tell Stone that the context has been lost
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72 bool OpenGLContextLost();
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73
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74 // This should be called to indicate that the context has been lost
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75 bool OpenGLContextRestored();
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77 private:
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78 void DisableCompositor();
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79 void RestoreCompositor();
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80
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81 void RegisterContextCallbacks();
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82 };
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83
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84 class WebAssemblyCairoViewport : public WebAssemblyViewport
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85 {
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86 private:
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87 CairoCompositor compositor_;
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88 std::string canvas_;
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89
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90 public:
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91 WebAssemblyCairoViewport(const std::string& canvas);
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92
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93 WebAssemblyCairoViewport(const std::string& canvas,
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94 boost::shared_ptr<Scene2D>& scene);
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95
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96 void UpdateSize();
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97
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98 virtual void Refresh() ORTHANC_OVERRIDE;
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99
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100 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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101 {
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102 return true;
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103 }
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104
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105 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE
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106 {
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107 return compositor_;
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108 }
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109 };
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110 }