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1 #include "Defaults.h"
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2
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223
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3 #include "WasmWebService.h"
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4 #include <Framework/dev.h>
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5 #include "Framework/Widgets/TestCairoWidget.h"
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6 #include <Framework/Viewport/WidgetViewport.h>
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7 #include <Framework/Widgets/LayerWidget.h>
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8
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9 static unsigned int width_ = 0;
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10 static unsigned int height_ = 0;
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11
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12 /**********************************/
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13
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14 static std::auto_ptr<OrthancStone::BasicWasmApplication> application;
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15 static std::shared_ptr<OrthancStone::WidgetViewport> viewport_;
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16 static OrthancStone::ChangeObserver changeObserver_;
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17 static OrthancStone::StatusBar statusBar_;
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18
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19
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20 #ifdef __cplusplus
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21 extern "C" {
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22 #endif
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23
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24 using namespace OrthancStone;
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25
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26 void EMSCRIPTEN_KEEPALIVE CreateWasmApplication() {
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27
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28 printf("CreateWasmApplication\n");
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29 viewport_.reset(new OrthancStone::WidgetViewport);
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30 viewport_->SetStatusBar(statusBar_);
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31 viewport_->Register(changeObserver_);
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32
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33
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34 application.reset(CreateUserApplication());
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35
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36 boost::program_options::options_description options;
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37 application->DeclareStartupOptions(options);
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38 }
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39
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40 void EMSCRIPTEN_KEEPALIVE SetStartupParameter(const char* keyc,
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41 const char* value) {
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42 application->SetStartupParameter(keyc, value);
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43 }
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44
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45 void EMSCRIPTEN_KEEPALIVE StartWasmApplication() {
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46
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47 printf("StartWasmApplication\n");
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48
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49 // recreate a command line from uri arguments and parse it
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50 boost::program_options::variables_map parameters;
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51 application->GetStartupParameters(parameters);
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52
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53 BasicWasmApplicationContext& context = dynamic_cast<BasicWasmApplicationContext&>(application->CreateApplicationContext(OrthancStone::WasmWebService::GetInstance(), viewport_));;
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54 application->Initialize(statusBar_, parameters);
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55
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56 viewport_->SetSize(width_, height_);
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57 printf("StartWasmApplication - completed\n");
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58 }
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59
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60 // void EMSCRIPTEN_KEEPALIVE ViewportUpdate(const char* _instanceId) {
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61 // printf("updating viewport content, Instance = [%s]\n", instanceId.c_str());
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62
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63 // layerSource->LoadFrame(instanceId, 0);
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64 // printf("frame loaded\n");
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65 // instanceWidget->UpdateContent();
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66
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67 // printf("update should be done\n");
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68 // }
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69
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70 // void EMSCRIPTEN_KEEPALIVE ViewportStart()
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71 // {
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72
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73 // viewport_.reset(new OrthancStone::WidgetViewport);
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74 // viewport_->SetStatusBar(statusBar_);
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75 // viewport_->Register(changeObserver_);
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76 // instanceWidget.reset(new OrthancStone::LayerWidget);
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77 // layerSource = new OrthancStone::OrthancFrameLayerSource(OrthancStone::WasmWebService::GetInstance());
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78
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79 // if (!instanceId.empty())
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80 // {
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81 // layerSource->LoadFrame(instanceId, 0);
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82 // } else {
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83 // printf("No instance provided so far\n");
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84 // }
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85
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86 // instanceWidget->AddLayer(layerSource);
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87
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88 // {
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89 // OrthancStone::RenderStyle s;
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90 // //s.drawGrid_ = true;
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91 // s.alpha_ = 1;
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92 // s.windowing_ = OrthancStone::ImageWindowing_Bone;
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93 // instanceWidget->SetLayerStyle(0, s);
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94 // }
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95
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96 // viewport_->SetCentralWidget(instanceWidget.release());
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97 // viewport_->SetSize(width_, height_);
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98
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99
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100 // }
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101
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102 void EMSCRIPTEN_KEEPALIVE NotifyUpdateContent()
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103 {
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104 // TODO Only launch the JavaScript timer if "HasUpdateContent()"
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105 if (viewport_.get() != NULL &&
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106 viewport_->HasUpdateContent())
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107 {
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108 viewport_->UpdateContent();
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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
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114 void EMSCRIPTEN_KEEPALIVE ViewportSetSize(unsigned int width, unsigned int height)
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115 {
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116 width_ = width;
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117 height_ = height;
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118
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119 if (viewport_.get() != NULL)
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120 {
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121 viewport_->SetSize(width, height);
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122 }
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123 }
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124
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125 int EMSCRIPTEN_KEEPALIVE ViewportRender(unsigned int width,
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126 unsigned int height,
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127 uint8_t* data)
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128 {
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129 changeObserver_.Reset();
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130
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131 //printf("ViewportRender called %dx%d\n", width, height);
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132 if (width == 0 ||
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133 height == 0)
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134 {
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135 return 1;
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136 }
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137
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138 Orthanc::ImageAccessor surface;
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139 surface.AssignWritable(Orthanc::PixelFormat_BGRA32, width, height, 4 * width, data);
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140
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141 if (viewport_.get() != NULL)
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142 {
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143 viewport_->Render(surface);
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144 }
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145
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146 // Convert from BGRA32 memory layout (only color mode supported by
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147 // Cairo, which corresponds to CAIRO_FORMAT_ARGB32) to RGBA32 (as
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148 // expected by HTML5 canvas). This simply amounts to swapping the
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149 // B and R channels.
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150 uint8_t* p = data;
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151 for (unsigned int y = 0; y < height; y++) {
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152 for (unsigned int x = 0; x < width; x++) {
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153 uint8_t tmp = p[0];
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154 p[0] = p[2];
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155 p[2] = tmp;
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156
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157 p += 4;
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158 }
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159 }
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160
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161 return 1;
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162 }
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163
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164
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165 void EMSCRIPTEN_KEEPALIVE ViewportMouseDown(unsigned int rawButton,
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166 int x,
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167 int y,
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168 unsigned int rawModifiers)
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169 {
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170 OrthancStone::MouseButton button;
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171 switch (rawButton)
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172 {
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173 case 0:
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174 button = OrthancStone::MouseButton_Left;
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175 break;
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176
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177 case 1:
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178 button = OrthancStone::MouseButton_Middle;
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179 break;
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180
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181 case 2:
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182 button = OrthancStone::MouseButton_Right;
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183 break;
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184
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185 default:
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186 return; // Unknown button
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187 }
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188
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189 if (viewport_.get() != NULL)
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190 {
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191 viewport_->MouseDown(button, x, y, OrthancStone::KeyboardModifiers_None /* TODO */);
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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 EMSCRIPTEN_KEEPALIVE ViewportMouseWheel(int deltaY,
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197 int x,
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198 int y,
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199 int isControl)
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200 {
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201 if (viewport_.get() != NULL &&
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202 deltaY != 0)
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203 {
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204 OrthancStone::MouseWheelDirection direction = (deltaY < 0 ?
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205 OrthancStone::MouseWheelDirection_Up :
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206 OrthancStone::MouseWheelDirection_Down);
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207 OrthancStone::KeyboardModifiers modifiers = OrthancStone::KeyboardModifiers_None;
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208
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209 if (isControl != 0)
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210 {
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211 modifiers = OrthancStone::KeyboardModifiers_Control;
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212 }
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213
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214 viewport_->MouseWheel(direction, x, y, modifiers);
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215 }
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216 }
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217
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218
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219 void EMSCRIPTEN_KEEPALIVE ViewportMouseMove(int x,
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220 int y)
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221 {
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222 if (viewport_.get() != NULL)
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223 {
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224 viewport_->MouseMove(x, y);
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225 }
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226 }
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227
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228 void EMSCRIPTEN_KEEPALIVE ViewportKeyPressed(const char* key,
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229 bool isShiftPressed,
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230 bool isControlPressed,
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231 bool isAltPressed)
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232
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233 {
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234 if (viewport_.get() != NULL)
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235 {
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236 OrthancStone::KeyboardModifiers modifiers = OrthancStone::KeyboardModifiers_None;
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237 if (isShiftPressed) {
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238 modifiers = static_cast<OrthancStone::KeyboardModifiers>(modifiers + OrthancStone::KeyboardModifiers_Shift);
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239 }
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240 if (isControlPressed) {
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241 modifiers = static_cast<OrthancStone::KeyboardModifiers>(modifiers + OrthancStone::KeyboardModifiers_Control);
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242 }
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243 if (isAltPressed) {
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244 modifiers = static_cast<OrthancStone::KeyboardModifiers>(modifiers + OrthancStone::KeyboardModifiers_Alt);
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245 }
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246 printf("key pressed : %c\n", key[0]);
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247 viewport_->KeyPressed(key[0], modifiers);
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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 void EMSCRIPTEN_KEEPALIVE ViewportMouseUp()
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253 {
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254 if (viewport_.get() != NULL)
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255 {
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256 viewport_->MouseUp();
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257 }
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258 }
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259
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260
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261 void EMSCRIPTEN_KEEPALIVE ViewportMouseEnter()
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262 {
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263 if (viewport_.get() != NULL)
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264 {
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265 viewport_->MouseEnter();
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266 }
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267 }
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268
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269
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270 void EMSCRIPTEN_KEEPALIVE ViewportMouseLeave()
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271 {
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272 if (viewport_.get() != NULL)
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273 {
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274 viewport_->MouseLeave();
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275 }
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276 }
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277
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278
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279 #ifdef __cplusplus
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280 }
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281 #endif
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