annotate Platforms/Wasm/Defaults.cpp @ 715:636eb0e4c9dd twiga-viewer-first-release

Adding SetApplicationParameters
author Benjamin Golinvaux <bgo@osimis.io>
date Mon, 20 May 2019 18:42:39 +0200
parents 79bb0a02d1cc
children 70992b38aa8a
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1 #include "Defaults.h"
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2
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3 #include "WasmWebService.h"
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4 #include "WasmDelayedCallExecutor.h"
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5 #include <Framework/dev.h>
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6 #include "Framework/Widgets/TestCairoWidget.h"
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7 #include <Framework/Viewport/WidgetViewport.h>
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8 #include <algorithm>
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9 #include "Applications/Wasm/StartupParametersBuilder.h"
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10 #include "Platforms/Wasm/WasmPlatformApplicationAdapter.h"
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11
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12 static unsigned int width_ = 0;
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13 static unsigned int height_ = 0;
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14
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15 /**********************************/
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16
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17 static std::unique_ptr<OrthancStone::IStoneApplication> application;
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18 static std::unique_ptr<OrthancStone::WasmPlatformApplicationAdapter> applicationWasmAdapter = NULL;
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19 static std::unique_ptr<OrthancStone::StoneApplicationContext> context;
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20 static OrthancStone::StartupParametersBuilder startupParametersBuilder;
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21 static OrthancStone::MessageBroker broker;
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22
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23 static OrthancStone::ViewportContentChangedObserver viewportContentChangedObserver_(broker);
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24 static OrthancStone::StatusBar statusBar_;
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25
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26 static std::list<std::shared_ptr<OrthancStone::WidgetViewport>> viewports_;
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27
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28 std::shared_ptr<OrthancStone::WidgetViewport> FindViewportSharedPtr(ViewportHandle viewport) {
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29 for (const auto& v : viewports_) {
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30 if (v.get() == viewport) {
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31 return v;
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32 }
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33 }
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34 assert(false);
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35 return std::shared_ptr<OrthancStone::WidgetViewport>();
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36 }
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37
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38 #ifdef __cplusplus
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39 extern "C" {
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40 #endif
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41
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42 using namespace OrthancStone;
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43
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44 // when WASM needs a C++ viewport
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45 ViewportHandle EMSCRIPTEN_KEEPALIVE CreateCppViewport() {
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46
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47 std::shared_ptr<OrthancStone::WidgetViewport> viewport(new OrthancStone::WidgetViewport(broker));
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48 printf("viewport %x\n", (int)viewport.get());
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49
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50 viewports_.push_back(viewport);
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51
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52 printf("There are now %lu viewports in C++\n", viewports_.size());
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53
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54 viewport->SetStatusBar(statusBar_);
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55
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56 viewport->RegisterObserverCallback(
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57 new Callable<ViewportContentChangedObserver, IViewport::ViewportChangedMessage>
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58 (viewportContentChangedObserver_, &ViewportContentChangedObserver::OnViewportChanged));
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59
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60 return viewport.get();
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61 }
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62
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63 // when WASM does not need a viewport anymore, it should release it
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64 void EMSCRIPTEN_KEEPALIVE ReleaseCppViewport(ViewportHandle viewport) {
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65 viewports_.remove_if([viewport](const std::shared_ptr<OrthancStone::WidgetViewport>& v) { return v.get() == viewport;});
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66
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67 printf("There are now %lu viewports in C++\n", viewports_.size());
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68 }
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69
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70 void EMSCRIPTEN_KEEPALIVE CreateWasmApplication(ViewportHandle viewport) {
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71
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72 printf("CreateWasmApplication\n");
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73
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74 application.reset(CreateUserApplication(broker));
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75 applicationWasmAdapter.reset(CreateWasmApplicationAdapter(broker, application.get()));
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76 WasmWebService::SetBroker(broker);
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77 WasmDelayedCallExecutor::SetBroker(broker);
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78
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79 startupParametersBuilder.Clear();
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80 }
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81
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82 void EMSCRIPTEN_KEEPALIVE SetStartupParameter(const char* keyc,
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83 const char* value) {
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84 startupParametersBuilder.SetStartupParameter(keyc, value);
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85 }
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86
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87 void EMSCRIPTEN_KEEPALIVE StartWasmApplication(const char* baseUri) {
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88
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89 printf("StartWasmApplication\n");
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90
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91 // recreate a command line from uri arguments and parse it
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92 boost::program_options::variables_map parameters;
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93 boost::program_options::options_description options;
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94 application->DeclareStartupOptions(options);
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95 startupParametersBuilder.GetStartupParameters(parameters, options);
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96
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97 context.reset(new OrthancStone::StoneApplicationContext(broker));
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98 context->SetOrthancBaseUrl(baseUri);
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99 printf("Base URL to Orthanc API: [%s]\n", baseUri);
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100 context->SetWebService(OrthancStone::WasmWebService::GetInstance());
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101 context->SetDelayedCallExecutor(OrthancStone::WasmDelayedCallExecutor::GetInstance());
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102 application->Initialize(context.get(), statusBar_, parameters);
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103 application->InitializeWasm();
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104
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105 // viewport->SetSize(width_, height_);
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106 printf("StartWasmApplication - completed\n");
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107 }
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108
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109 void EMSCRIPTEN_KEEPALIVE WasmDoAnimation()
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110 {
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111 for (auto viewport : viewports_) {
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112 // TODO Only launch the JavaScript timer if "HasAnimation()"
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113 if (viewport->HasAnimation())
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114 {
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115 viewport->DoAnimation();
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116 }
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117
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118 }
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119
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120 }
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121
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122
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123 void EMSCRIPTEN_KEEPALIVE ViewportSetSize(ViewportHandle viewport, unsigned int width, unsigned int height)
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124 {
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125 width_ = width;
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126 height_ = height;
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127
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128 viewport->SetSize(width, height);
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129 }
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130
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131 int EMSCRIPTEN_KEEPALIVE ViewportRender(ViewportHandle viewport,
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132 unsigned int width,
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133 unsigned int height,
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134 uint8_t* data)
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135 {
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136 viewportContentChangedObserver_.Reset();
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137
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138 //printf("ViewportRender called %dx%d\n", width, height);
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139 if (width == 0 ||
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140 height == 0)
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141 {
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142 return 1;
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143 }
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144
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145 Orthanc::ImageAccessor surface;
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146 surface.AssignWritable(Orthanc::PixelFormat_BGRA32, width, height, 4 * width, data);
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147
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148 viewport->Render(surface);
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149
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150 // Convert from BGRA32 memory layout (only color mode supported by
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151 // Cairo, which corresponds to CAIRO_FORMAT_ARGB32) to RGBA32 (as
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152 // expected by HTML5 canvas). This simply amounts to swapping the
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153 // B and R channels.
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154 uint8_t* p = data;
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155 for (unsigned int y = 0; y < height; y++) {
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156 for (unsigned int x = 0; x < width; x++) {
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157 uint8_t tmp = p[0];
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158 p[0] = p[2];
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159 p[2] = tmp;
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160
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161 p += 4;
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162 }
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163 }
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164
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165 return 1;
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166 }
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167
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168
228
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169 void EMSCRIPTEN_KEEPALIVE ViewportMouseDown(ViewportHandle viewport,
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170 unsigned int rawButton,
223
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171 int x,
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172 int y,
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173 unsigned int rawModifiers)
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174 {
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175 OrthancStone::MouseButton button;
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176 switch (rawButton)
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177 {
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178 case 0:
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179 button = OrthancStone::MouseButton_Left;
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180 break;
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181
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182 case 1:
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183 button = OrthancStone::MouseButton_Middle;
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184 break;
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185
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186 case 2:
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187 button = OrthancStone::MouseButton_Right;
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188 break;
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189
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190 default:
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191 return; // Unknown button
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192 }
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193
457
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194 viewport->MouseDown(button, x, y, OrthancStone::KeyboardModifiers_None, std::vector<OrthancStone::Touch>());
223
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195 }
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196
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197
228
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198 void EMSCRIPTEN_KEEPALIVE ViewportMouseWheel(ViewportHandle viewport,
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199 int deltaY,
223
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200 int x,
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201 int y,
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202 int isControl)
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203 {
228
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204 if (deltaY != 0)
223
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205 {
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206 OrthancStone::MouseWheelDirection direction = (deltaY < 0 ?
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207 OrthancStone::MouseWheelDirection_Up :
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208 OrthancStone::MouseWheelDirection_Down);
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209 OrthancStone::KeyboardModifiers modifiers = OrthancStone::KeyboardModifiers_None;
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210
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211 if (isControl != 0)
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212 {
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213 modifiers = OrthancStone::KeyboardModifiers_Control;
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214 }
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215
228
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216 viewport->MouseWheel(direction, x, y, modifiers);
223
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217 }
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218 }
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219
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220
228
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221 void EMSCRIPTEN_KEEPALIVE ViewportMouseMove(ViewportHandle viewport,
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222 int x,
223
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223 int y)
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224 {
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225 viewport->MouseMove(x, y, std::vector<OrthancStone::Touch>());
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226 }
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227
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228 void GetTouchVector(std::vector<OrthancStone::Touch>& output,
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229 int touchCount,
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230 float x0,
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231 float y0,
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232 float x1,
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233 float y1,
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234 float x2,
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235 float y2)
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236 {
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237 // TODO: it might be nice to try to pass all the x0,y0 coordinates as arrays but that's not so easy to pass array between JS and C++
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238 if (touchCount > 0)
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239 {
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240 output.push_back(OrthancStone::Touch(x0, y0));
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241 }
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242 if (touchCount > 1)
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243 {
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244 output.push_back(OrthancStone::Touch(x1, y1));
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245 }
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246 if (touchCount > 2)
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247 {
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248 output.push_back(OrthancStone::Touch(x2, y2));
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249 }
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250
223
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251 }
457
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252
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253 void EMSCRIPTEN_KEEPALIVE ViewportTouchStart(ViewportHandle viewport,
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254 int touchCount,
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255 float x0,
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256 float y0,
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257 float x1,
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258 float y1,
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259 float x2,
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260 float y2)
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261 {
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262 printf("touch start with %d touches\n", touchCount);
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263
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264 std::vector<OrthancStone::Touch> touches;
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265 GetTouchVector(touches, touchCount, x0, y0, x1, y1, x2, y2);
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266 viewport->TouchStart(touches);
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267 }
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268
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269 void EMSCRIPTEN_KEEPALIVE ViewportTouchMove(ViewportHandle viewport,
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270 int touchCount,
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271 float x0,
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272 float y0,
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273 float x1,
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274 float y1,
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275 float x2,
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276 float y2)
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277 {
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278 printf("touch move with %d touches\n", touchCount);
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279
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280 std::vector<OrthancStone::Touch> touches;
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281 GetTouchVector(touches, touchCount, x0, y0, x1, y1, x2, y2);
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282 viewport->TouchMove(touches);
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283 }
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284
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285 void EMSCRIPTEN_KEEPALIVE ViewportTouchEnd(ViewportHandle viewport,
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286 int touchCount,
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287 float x0,
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288 float y0,
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289 float x1,
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290 float y1,
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291 float x2,
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292 float y2)
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293 {
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294 printf("touch end with %d touches remaining\n", touchCount);
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295
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296 std::vector<OrthancStone::Touch> touches;
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297 GetTouchVector(touches, touchCount, x0, y0, x1, y1, x2, y2);
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298 viewport->TouchEnd(touches);
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299 }
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300
228
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301 void EMSCRIPTEN_KEEPALIVE ViewportKeyPressed(ViewportHandle viewport,
327
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302 int key,
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303 const char* keyChar,
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304 bool isShiftPressed,
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305 bool isControlPressed,
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306 bool isAltPressed)
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307
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308 {
228
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309 OrthancStone::KeyboardModifiers modifiers = OrthancStone::KeyboardModifiers_None;
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310 if (isShiftPressed) {
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311 modifiers = static_cast<OrthancStone::KeyboardModifiers>(modifiers + OrthancStone::KeyboardModifiers_Shift);
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312 }
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313 if (isControlPressed) {
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314 modifiers = static_cast<OrthancStone::KeyboardModifiers>(modifiers + OrthancStone::KeyboardModifiers_Control);
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315 }
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316 if (isAltPressed) {
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317 modifiers = static_cast<OrthancStone::KeyboardModifiers>(modifiers + OrthancStone::KeyboardModifiers_Alt);
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318 }
327
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319
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320 char c = 0;
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321 if (keyChar != NULL && key == OrthancStone::KeyboardKeys_Generic) {
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322 c = keyChar[0];
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323 }
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324 viewport->KeyPressed(static_cast<OrthancStone::KeyboardKeys>(key), c, modifiers);
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325 }
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326
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327
228
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328 void EMSCRIPTEN_KEEPALIVE ViewportMouseUp(ViewportHandle viewport)
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329 {
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330 viewport->MouseUp();
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331 }
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332
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333
228
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334 void EMSCRIPTEN_KEEPALIVE ViewportMouseEnter(ViewportHandle viewport)
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335 {
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336 viewport->MouseEnter();
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337 }
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338
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339
228
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340 void EMSCRIPTEN_KEEPALIVE ViewportMouseLeave(ViewportHandle viewport)
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341 {
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342 viewport->MouseLeave();
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343 }
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344
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345 const char* EMSCRIPTEN_KEEPALIVE SendSerializedMessageToStoneApplication(const char* message)
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346 {
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347 static std::string output; // we don't want the string to be deallocated when we return to JS code so we always use the same string (this is fine since JS is single-thread)
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348
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349 printf("SendSerializedMessageToStoneApplication\n");
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350 printf("%s", message);
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351
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352 if (applicationWasmAdapter.get() != NULL) {
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353 applicationWasmAdapter->HandleSerializedMessageFromWeb(output, std::string(message));
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354 return output.c_str();
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355 }
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356 printf("This Stone application does not have a Web Adapter");
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357 return NULL;
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358 }
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359
223
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360 #ifdef __cplusplus
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361 }
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362 #endif