Mercurial > hg > orthanc-stone
annotate Samples/Sdl/SingleFrameViewer/SimpleViewer.cpp @ 1383:ab871499ed30
SingleFrameViewer: refactored file locations + names to share files for RtViewer
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Mon, 27 Apr 2020 10:01:03 +0200 |
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children | ffdb82850e98 |
rev | line source |
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2 #include "SdlSimpleViewerApplication.h" |
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4 #include <Core/OrthancException.h> |
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6 #include <Framework/Loaders/GenericLoadersContext.h> |
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7 #include <Framework/StoneException.h> |
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8 #include <Framework/StoneEnumerations.h> |
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9 #include <Framework/StoneInitialization.h> |
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10 #include <Framework/Viewport/SdlViewport.h> |
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11 |
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12 #include <SDL.h> |
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14 namespace OrthancStone |
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15 { |
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16 static KeyboardModifiers GetKeyboardModifiers(const uint8_t* keyboardState, |
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17 const int scancodeCount) |
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18 { |
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19 int result = KeyboardModifiers_None; |
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20 |
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21 if (keyboardState != NULL) |
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22 { |
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23 if (SDL_SCANCODE_LSHIFT < scancodeCount && |
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24 keyboardState[SDL_SCANCODE_LSHIFT]) |
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25 { |
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26 result |= KeyboardModifiers_Shift; |
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27 } |
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29 if (SDL_SCANCODE_RSHIFT < scancodeCount && |
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30 keyboardState[SDL_SCANCODE_RSHIFT]) |
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31 { |
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32 result |= KeyboardModifiers_Shift; |
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33 } |
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35 if (SDL_SCANCODE_LCTRL < scancodeCount && |
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36 keyboardState[SDL_SCANCODE_LCTRL]) |
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37 { |
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38 result |= KeyboardModifiers_Control; |
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39 } |
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41 if (SDL_SCANCODE_RCTRL < scancodeCount && |
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42 keyboardState[SDL_SCANCODE_RCTRL]) |
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43 { |
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44 result |= KeyboardModifiers_Control; |
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45 } |
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46 |
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47 if (SDL_SCANCODE_LALT < scancodeCount && |
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48 keyboardState[SDL_SCANCODE_LALT]) |
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49 { |
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50 result |= KeyboardModifiers_Alt; |
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51 } |
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52 |
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53 if (SDL_SCANCODE_RALT < scancodeCount && |
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54 keyboardState[SDL_SCANCODE_RALT]) |
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55 { |
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56 result |= KeyboardModifiers_Alt; |
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57 } |
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58 } |
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59 |
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60 return static_cast<KeyboardModifiers>(result); |
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61 } |
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62 |
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63 |
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64 static void GetPointerEvent(PointerEvent& p, |
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65 const ICompositor& compositor, |
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66 SDL_Event event, |
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67 const uint8_t* keyboardState, |
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68 const int scancodeCount) |
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69 { |
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70 KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); |
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71 |
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72 switch (event.button.button) |
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73 { |
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74 case SDL_BUTTON_LEFT: |
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75 p.SetMouseButton(OrthancStone::MouseButton_Left); |
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76 break; |
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77 |
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78 case SDL_BUTTON_RIGHT: |
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79 p.SetMouseButton(OrthancStone::MouseButton_Right); |
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80 break; |
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81 |
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82 case SDL_BUTTON_MIDDLE: |
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83 p.SetMouseButton(OrthancStone::MouseButton_Middle); |
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84 break; |
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85 |
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86 default: |
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87 p.SetMouseButton(OrthancStone::MouseButton_None); |
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88 break; |
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89 } |
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90 |
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91 p.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y)); |
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92 p.SetAltModifier(modifiers & KeyboardModifiers_Alt); |
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93 p.SetControlModifier(modifiers & KeyboardModifiers_Control); |
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94 p.SetShiftModifier(modifiers & KeyboardModifiers_Shift); |
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95 } |
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96 |
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97 } |
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98 |
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99 /** |
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100 * IMPORTANT: The full arguments to "main()" are needed for SDL on |
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101 * Windows. Otherwise, one gets the linking error "undefined reference |
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102 * to `SDL_main'". https://wiki.libsdl.org/FAQWindows |
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103 **/ |
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104 int main(int argc, char* argv[]) |
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105 { |
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106 try |
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107 { |
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108 OrthancStone::StoneInitialize(); |
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109 Orthanc::Logging::EnableInfoLevel(true); |
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110 //Orthanc::Logging::EnableTraceLevel(true); |
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111 |
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112 { |
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113 |
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114 #if 1 |
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115 boost::shared_ptr<OrthancStone::SdlViewport> viewport = |
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116 OrthancStone::SdlOpenGLViewport::Create("Stone of Orthanc", 800, 600); |
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117 #else |
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118 boost::shared_ptr<OrthancStone::SdlViewport> viewport = |
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119 OrthancStone::SdlCairoViewport::Create("Stone of Orthanc", 800, 600); |
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120 #endif |
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121 |
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122 OrthancStone::GenericLoadersContext context(1, 4, 1); |
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123 |
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124 context.StartOracle(); |
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125 |
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126 { |
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127 |
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128 boost::shared_ptr<SdlSimpleViewerApplication> application( |
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129 SdlSimpleViewerApplication::Create(context, viewport)); |
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130 |
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131 OrthancStone::DicomSource source; |
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132 |
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133 // Default and command-line parameters |
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134 const char* instanceId = "285dece8-e1956b38-cdc7d084-6ce3371e-536a9ffc"; |
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135 unsigned int frameIndex = 0; |
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136 |
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137 if (argc == 1) |
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138 { |
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139 LOG(ERROR) << "No instanceId supplied. The default of " << instanceId << " will be used. " |
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140 << "Please supply the Orthanc instance ID of the frame you wish to display then, optionally, " |
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141 << "the zero-based index of the frame (for multi-frame instances)"; |
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142 // TODO: frame number as second argument... |
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143 } |
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144 |
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145 if (argc >= 2) |
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146 instanceId = argv[1]; |
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147 |
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148 if (argc >= 3) |
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149 frameIndex = atoi(argv[1]); |
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150 |
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151 if (argc > 3) |
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152 { |
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153 LOG(ERROR) << "Extra arguments ignored!"; |
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154 } |
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155 |
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156 |
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157 application->LoadOrthancFrame(source, instanceId, frameIndex); |
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158 |
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159 OrthancStone::DefaultViewportInteractor interactor; |
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160 |
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161 { |
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162 int scancodeCount = 0; |
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163 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); |
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164 |
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165 bool stop = false; |
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166 while (!stop) |
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167 { |
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168 bool paint = false; |
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169 SDL_Event event; |
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170 while (SDL_PollEvent(&event)) |
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171 { |
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172 if (event.type == SDL_QUIT) |
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173 { |
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174 stop = true; |
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175 break; |
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176 } |
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177 else if (viewport->IsRefreshEvent(event)) |
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178 { |
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179 paint = true; |
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180 } |
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181 else if (event.type == SDL_WINDOWEVENT && |
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182 (event.window.event == SDL_WINDOWEVENT_RESIZED || |
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183 event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)) |
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184 { |
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185 viewport->UpdateSize(event.window.data1, event.window.data2); |
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186 } |
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187 else if (event.type == SDL_WINDOWEVENT && |
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188 (event.window.event == SDL_WINDOWEVENT_SHOWN || |
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189 event.window.event == SDL_WINDOWEVENT_EXPOSED)) |
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190 { |
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191 paint = true; |
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192 } |
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193 else if (event.type == SDL_KEYDOWN && |
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194 event.key.repeat == 0 /* Ignore key bounce */) |
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195 { |
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196 switch (event.key.keysym.sym) |
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197 { |
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198 case SDLK_f: |
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199 viewport->ToggleMaximize(); |
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200 break; |
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201 |
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202 case SDLK_s: |
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203 application->FitContent(); |
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204 break; |
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205 |
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206 case SDLK_q: |
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207 stop = true; |
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208 break; |
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209 |
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210 default: |
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211 break; |
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212 } |
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213 } |
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214 else if (event.type == SDL_MOUSEBUTTONDOWN || |
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215 event.type == SDL_MOUSEMOTION || |
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216 event.type == SDL_MOUSEBUTTONUP) |
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217 { |
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218 std::auto_ptr<OrthancStone::IViewport::ILock> lock(viewport->Lock()); |
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219 if (lock->HasCompositor()) |
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220 { |
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221 OrthancStone::PointerEvent p; |
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222 OrthancStone::GetPointerEvent(p, lock->GetCompositor(), |
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223 event, keyboardState, scancodeCount); |
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224 |
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225 switch (event.type) |
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226 { |
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227 case SDL_MOUSEBUTTONDOWN: |
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228 lock->GetController().HandleMousePress(interactor, p, |
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229 lock->GetCompositor().GetCanvasWidth(), |
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230 lock->GetCompositor().GetCanvasHeight()); |
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231 lock->Invalidate(); |
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232 break; |
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233 |
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234 case SDL_MOUSEMOTION: |
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235 if (lock->GetController().HandleMouseMove(p)) |
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236 { |
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237 lock->Invalidate(); |
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238 } |
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239 break; |
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240 |
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241 case SDL_MOUSEBUTTONUP: |
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242 lock->GetController().HandleMouseRelease(p); |
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243 lock->Invalidate(); |
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244 break; |
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245 |
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246 default: |
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247 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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248 } |
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249 } |
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250 } |
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251 } |
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252 |
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253 if (paint) |
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254 { |
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255 viewport->Paint(); |
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256 } |
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257 |
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258 // Small delay to avoid using 100% of CPU |
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259 SDL_Delay(1); |
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260 } |
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261 } |
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262 |
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263 context.StopOracle(); |
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264 } |
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265 } |
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266 |
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267 OrthancStone::StoneFinalize(); |
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268 return 0; |
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269 } |
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270 catch (Orthanc::OrthancException & e) |
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271 { |
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272 auto test = e.What(); |
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273 fprintf(stdout, test); |
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274 LOG(ERROR) << "OrthancException: " << e.What(); |
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275 return -1; |
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276 } |
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277 catch (OrthancStone::StoneException & e) |
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278 { |
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279 LOG(ERROR) << "StoneException: " << e.What(); |
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280 return -1; |
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281 } |
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282 catch (std::runtime_error & e) |
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283 { |
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284 LOG(ERROR) << "Runtime error: " << e.what(); |
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285 return -1; |
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286 } |
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287 catch (...) |
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288 { |
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289 LOG(ERROR) << "Native exception"; |
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290 return -1; |
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291 } |
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292 } |