Mercurial > hg > orthanc-stone
view Applications/Platforms/WebAssembly/WebGLViewportsRegistry.h @ 1773:34eb41352dff
added missing Scene2D/CopyStyleConfigurator.cpp
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 12 May 2021 17:40:38 +0200 |
parents | 9ac2a65d4172 |
children | 3889ae96d2e9 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2021 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #pragma once #include "WebGLViewport.h" #include <boost/enable_shared_from_this.hpp> namespace OrthancStone { /** * This singleton class must be used if many WebGL viewports are * created by the higher-level application, implying possible loss * of WebGL contexts. The object will run an infinite update loop * that checks whether all the WebGL context are still valid (not * lost). If some WebGL context is lost, it is automatically * reinitialized by created a fresh HTML5 canvas. **/ class WebGLViewportsRegistry : public boost::noncopyable, public boost::enable_shared_from_this<WebGLViewportsRegistry> { private: typedef std::map<std::string, boost::shared_ptr<WebGLViewport> > Viewports; double timeoutMS_; Viewports viewports_; long timeOutID_; void LaunchTimer(); void OnTimeout(); static void OnTimeoutCallback(void *userData); public: explicit WebGLViewportsRegistry(double timeoutMS /* in milliseconds */); ~WebGLViewportsRegistry(); boost::shared_ptr<WebGLViewport> Add(const std::string& canvasId); void Remove(const std::string& canvasId); void Clear(); class Accessor : public boost::noncopyable { private: WebGLViewportsRegistry& that_; std::unique_ptr<IViewport::ILock> lock_; public: Accessor(WebGLViewportsRegistry& that, const std::string& canvasId); bool IsValid() const { return lock_.get() != NULL; } IViewport::ILock& GetViewport() const; }; static void FinalizeGlobalRegistry(); static void SetGlobalRegistryTimeout(double timeout); static WebGLViewportsRegistry& GetGlobalRegistry(); }; }