Mercurial > hg > orthanc-stone
view Platforms/Wasm/Defaults.h @ 1132:58799b7317fa
merge
author | Alain Mazy <alain@mazy.be> |
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date | Wed, 06 Nov 2019 10:47:05 +0100 |
parents | c35e98d22764 |
children |
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#pragma once #include <emscripten/emscripten.h> #include "../../Framework/Deprecated/Viewport/WidgetViewport.h" #include "../../Framework/Deprecated/Widgets/LayoutWidget.h" #include <Applications/IStoneApplication.h> #include <Platforms/Wasm/WasmPlatformApplicationAdapter.h> typedef Deprecated::WidgetViewport* ViewportHandle; // the objects exchanged between JS and C++ #ifdef __cplusplus extern "C" { #endif // JS methods accessible from C++ extern void ScheduleWebViewportRedrawFromCpp(ViewportHandle cppViewportHandle); extern void UpdateStoneApplicationStatusFromCppWithString(const char* statusUpdateMessage); extern void UpdateStoneApplicationStatusFromCppWithSerializedMessage(const char* statusUpdateMessage); extern void stone_console_error(const char*); extern void stone_console_warning(const char*); extern void stone_console_info(const char*); extern void stone_console_trace(const char*); // C++ methods accessible from JS extern void EMSCRIPTEN_KEEPALIVE CreateWasmApplication(ViewportHandle cppViewportHandle); extern void EMSCRIPTEN_KEEPALIVE SetStartupParameter(const char* keyc, const char* value); #ifdef __cplusplus } #endif // these methods must be implemented in the custom app "mainWasm.cpp" extern OrthancStone::IStoneApplication* CreateUserApplication(OrthancStone::MessageBroker& broker); extern OrthancStone::WasmPlatformApplicationAdapter* CreateWasmApplicationAdapter(OrthancStone::MessageBroker& broker, OrthancStone::IStoneApplication* application); namespace OrthancStone { // default Observer to trigger Viewport redraw when something changes in the Viewport class ViewportContentChangedObserver : public IObserver { private: // Flag to avoid flooding JavaScript with redundant Redraw requests bool isScheduled_; public: ViewportContentChangedObserver(MessageBroker& broker) : IObserver(broker), isScheduled_(false) { } void Reset() { isScheduled_ = false; } void OnViewportChanged(const Deprecated::IViewport::ViewportChangedMessage& message) { if (!isScheduled_) { ScheduleWebViewportRedrawFromCpp((ViewportHandle)&message.GetOrigin()); // loosing constness when transmitted to Web isScheduled_ = true; } } }; // default status bar to log messages on the console/stdout class StatusBar : public Deprecated::IStatusBar { public: virtual void ClearMessage() { } virtual void SetMessage(const std::string& message) { printf("%s\n", message.c_str()); } }; }