Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Platforms/Sdl/SdlWindow.cpp @ 2113:8ab2eb6ed354
fix for boost 1.84.0
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 24 Jan 2024 16:42:38 +0100 |
parents | 07964689cb0b |
children | c23eef785569 |
rev | line source |
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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) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 |
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24 #include "SdlWindow.h" |
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25 |
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26 #if ORTHANC_ENABLE_SDL == 1 |
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27 |
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28 #include <Logging.h> |
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29 #include <OrthancException.h> |
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30 |
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31 #ifdef WIN32 |
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32 #include <windows.h> // for SetProcessDpiAware |
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33 #endif |
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34 // WIN32 |
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35 |
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36 #include <SDL_render.h> |
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37 #include <SDL_video.h> |
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38 #include <SDL.h> |
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39 |
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40 namespace OrthancStone |
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41 { |
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42 SdlWindow::SdlWindow(const std::string& title, |
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43 unsigned int width, |
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44 unsigned int height, |
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45 bool enableOpenGl, |
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46 bool allowDpiScaling) : |
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47 maximized_(false) |
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48 { |
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49 // TODO Understand why, with SDL_WINDOW_OPENGL + MinGW32 + Release |
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50 // build mode, the application crashes whenever the SDL window is |
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51 // resized or maximized |
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52 |
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53 uint32_t windowFlags, rendererFlags; |
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54 if (enableOpenGl) |
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55 { |
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56 windowFlags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE; |
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57 rendererFlags = SDL_RENDERER_ACCELERATED; |
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58 } |
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59 else |
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60 { |
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61 windowFlags = SDL_WINDOW_RESIZABLE; |
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62 rendererFlags = SDL_RENDERER_SOFTWARE; |
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63 } |
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64 |
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65 // TODO: probably required on MacOS X, too |
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66 #if defined(WIN32) && (_WIN32_WINNT >= 0x0600) |
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67 if (!allowDpiScaling) |
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68 { |
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69 // if we do NOT allow DPI scaling, it means an SDL pixel will be a real |
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70 // monitor pixel. This is needed for high-DPI applications |
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71 |
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72 // Enable high-DPI support on Windows |
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73 |
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74 // THE FOLLOWING HAS BEEN COMMENTED OUT BECAUSE IT WILL CRASH UNDER |
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75 // OLD WINDOWS VERSIONS |
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76 // ADD THIS AT THE TOP TO ENABLE IT: |
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77 // |
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78 //#pragma comment(lib, "Shcore.lib") THIS IS ONLY REQUIRED FOR SetProcessDpiAwareness |
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79 //#include <windows.h> |
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80 //#include <ShellScalingAPI.h> THIS IS ONLY REQUIRED FOR SetProcessDpiAwareness |
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81 //#include <comdef.h> THIS IS ONLY REQUIRED FOR SetProcessDpiAwareness |
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82 // SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE); |
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83 |
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84 // This is supported on Vista+ |
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85 SetProcessDPIAware(); |
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86 |
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87 windowFlags |= SDL_WINDOW_ALLOW_HIGHDPI; |
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88 } |
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89 #endif |
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90 // WIN32 |
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91 |
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92 window_ = SDL_CreateWindow(title.c_str(), |
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93 SDL_WINDOWPOS_UNDEFINED, |
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94 SDL_WINDOWPOS_UNDEFINED, |
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95 width, height, windowFlags); |
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96 |
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97 if (window_ == NULL) |
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98 { |
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99 LOG(ERROR) << "Cannot create the SDL window: " << SDL_GetError(); |
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100 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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101 } |
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102 |
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103 renderer_ = SDL_CreateRenderer(window_, -1, rendererFlags); |
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104 if (!renderer_) |
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105 { |
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106 LOG(ERROR) << "Cannot create the SDL renderer: " << SDL_GetError(); |
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107 SDL_DestroyWindow(window_); |
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108 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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109 } |
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110 } |
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111 |
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112 |
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113 SdlWindow::~SdlWindow() |
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114 { |
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115 if (renderer_ != NULL) |
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116 { |
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117 SDL_DestroyRenderer(renderer_); |
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118 } |
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119 |
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120 if (window_ != NULL) |
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121 { |
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122 SDL_DestroyWindow(window_); |
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123 } |
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124 } |
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125 |
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126 |
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127 unsigned int SdlWindow::GetWidth() const |
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128 { |
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129 int w = -1; |
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130 SDL_GetWindowSize(window_, &w, NULL); |
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131 |
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132 if (w < 0) |
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133 { |
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134 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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135 } |
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136 else |
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137 { |
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138 return static_cast<unsigned int>(w); |
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139 } |
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140 } |
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141 |
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142 |
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143 unsigned int SdlWindow::GetHeight() const |
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144 { |
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145 int h = -1; |
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146 SDL_GetWindowSize(window_, NULL, &h); |
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147 |
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148 if (h < 0) |
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149 { |
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150 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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151 } |
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152 else |
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153 { |
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154 return static_cast<unsigned int>(h); |
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155 } |
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156 } |
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157 |
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158 |
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159 void SdlWindow::Render(SDL_Surface* surface) |
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160 { |
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161 /** |
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162 * "You are strongly encouraged to call SDL_RenderClear() to |
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163 * initialize the backbuffer before starting each new frame's |
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164 * drawing, even if you plan to overwrite every pixel." |
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165 * https://wiki.libsdl.org/SDL_RenderPresent |
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166 **/ |
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167 SDL_SetRenderDrawColor(renderer_, 0, 0, 0, 255); |
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168 SDL_RenderClear(renderer_); // Clear the entire screen to our selected color |
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169 |
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170 SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer_, surface); |
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171 if (texture != NULL) |
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172 { |
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173 SDL_RenderCopy(renderer_, texture, NULL, NULL); |
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174 SDL_DestroyTexture(texture); |
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175 } |
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176 |
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177 SDL_RenderPresent(renderer_); |
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178 } |
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179 |
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180 |
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181 void SdlWindow::ToggleMaximize() |
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182 { |
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183 if (maximized_) |
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184 { |
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185 SDL_RestoreWindow(window_); |
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186 maximized_ = false; |
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187 } |
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188 else |
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189 { |
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190 SDL_MaximizeWindow(window_); |
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191 maximized_ = true; |
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192 } |
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193 } |
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194 |
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195 |
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196 void SdlWindow::GlobalInitialize() |
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197 { |
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198 if (SDL_Init(SDL_INIT_VIDEO) != 0) |
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199 { |
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200 LOG(ERROR) << "Cannot initialize SDL"; |
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201 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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202 } |
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203 } |
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204 |
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205 |
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206 void SdlWindow::GlobalFinalize() |
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207 { |
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208 SDL_Quit(); |
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209 } |
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210 } |
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211 |
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212 #endif |