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annotate Framework/Viewport/SdlViewport.h @ 1308:adf234ecaa00 broker

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author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 04 Mar 2020 10:21:54 +0100
parents 8a28a9bf8876 257f2c9a02ac
children ab81ee8fce1f
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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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20
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21 #pragma once
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22
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23 #if !defined(ORTHANC_ENABLE_SDL)
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24 # error Macro ORTHANC_ENABLE_SDL must be defined
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25 #endif
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26
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27 #if ORTHANC_ENABLE_SDL != 1
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28 # error SDL must be enabled to use this file
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29 #endif
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30
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31 #if !defined(ORTHANC_ENABLE_OPENGL)
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32 # error The macro ORTHANC_ENABLE_OPENGL must be defined
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33 #endif
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34
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35 #if ORTHANC_ENABLE_OPENGL != 1
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36 # error Support for OpenGL is disabled
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37 #endif
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38
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39 #include "../OpenGL/SdlOpenGLContext.h"
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40 #include "../Scene2D/OpenGLCompositor.h"
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41 #include "../Scene2D/CairoCompositor.h"
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42 #include "IViewport.h"
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43
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44 #include <SDL_events.h>
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45
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46 // TODO: required for UndoStack injection
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47 // I don't like it either :)
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48 #include <boost/weak_ptr.hpp>
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49
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50 #include <boost/thread/recursive_mutex.hpp>
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51
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52 namespace OrthancStone
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53 {
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54 class UndoStack;
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55
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56 class SdlViewport : public IViewport
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57 {
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58 private:
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59 boost::recursive_mutex mutex_;
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60 uint32_t refreshEvent_;
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61 boost::shared_ptr<ViewportController> controller_;
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62 std::unique_ptr<ICompositor> compositor_;
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63
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64 void SendRefreshEvent();
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65
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66 protected:
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67 class SdlLock : public ILock
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68 {
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69 private:
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70 SdlViewport& that_;
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71 boost::recursive_mutex::scoped_lock lock_;
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73 public:
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74 SdlLock(SdlViewport& that) :
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75 that_(that),
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76 lock_(that.mutex_)
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77 {
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78 }
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79
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80 virtual bool HasCompositor() const ORTHANC_OVERRIDE
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81 {
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82 return true;
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83 }
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84
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85 virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE;
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86
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87 virtual ViewportController& GetController() ORTHANC_OVERRIDE
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88 {
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89 return *that_.controller_;
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90 }
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91
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92 virtual void Invalidate() ORTHANC_OVERRIDE
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93 {
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94 that_.SendRefreshEvent();
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95 }
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96 };
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97
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98 void ClearCompositor()
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99 {
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100 compositor_.reset();
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101 }
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102
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103 void AcquireCompositor(ICompositor* compositor /* takes ownership */);
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104
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105 public:
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106 SdlViewport();
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107 SdlViewport(boost::weak_ptr<UndoStack> undoStackW);
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108
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109 bool IsRefreshEvent(const SDL_Event& event) const
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110 {
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111 return (event.type == refreshEvent_);
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112 }
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113
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114 virtual ILock* Lock() ORTHANC_OVERRIDE
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115 {
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116 return new SdlLock(*this);
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117 }
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118
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119 virtual void UpdateSize(unsigned int width,
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120 unsigned int height) = 0;
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121
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122 virtual void ToggleMaximize() = 0;
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123
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124 // Must be invoked from the main SDL thread
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125 virtual void Paint() = 0;
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126 };
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127
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129 class SdlOpenGLViewport : public SdlViewport
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130 {
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131 private:
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132 SdlOpenGLContext context_;
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133
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134 public:
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135 SdlOpenGLViewport(const char* title,
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136 unsigned int width,
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137 unsigned int height,
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138 bool allowDpiScaling = true);
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139
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140 SdlOpenGLViewport(const char* title,
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141 boost::weak_ptr<UndoStack> undoStackW,
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142 unsigned int width,
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143 unsigned int height,
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144 bool allowDpiScaling = true);
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145
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146 virtual ~SdlOpenGLViewport();
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147
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148 virtual void Paint() ORTHANC_OVERRIDE;
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149
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150 virtual void UpdateSize(unsigned int width,
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151 unsigned int height) ORTHANC_OVERRIDE;
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152
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153 virtual void ToggleMaximize() ORTHANC_OVERRIDE;
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154 };
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155
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156
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157 class SdlCairoViewport : public SdlViewport
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158 {
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159 private:
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160 SdlWindow window_;
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161 SDL_Surface* sdlSurface_;
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162
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163 void CreateSdlSurfaceFromCompositor(CairoCompositor& compositor);
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164
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165 public:
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166 SdlCairoViewport(const char* title,
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167 unsigned int width,
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168 unsigned int height,
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169 bool allowDpiScaling = true);
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170
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171 virtual ~SdlCairoViewport();
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172
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173 virtual void Paint() ORTHANC_OVERRIDE;
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174
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175 virtual void UpdateSize(unsigned int width,
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176 unsigned int height) ORTHANC_OVERRIDE;
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177
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178 virtual void ToggleMaximize() ORTHANC_OVERRIDE;
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179 };
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180 }