Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Platforms/Sdl/SdlViewport.h @ 1899:917500c46fe0
moved the Platform folder from the Applications folder to the Stone library itself
author | Alain Mazy <am@osimis.io> |
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date | Sat, 29 Jan 2022 12:47:32 +0100 |
parents | |
children | 184b0aeae1af |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancStone/Sources/Platforms/Sdl/SdlViewport.h Sat Jan 29 12:47:32 2022 +0100 @@ -0,0 +1,205 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2022 Osimis S.A., Belgium + * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program. If not, see + * <http://www.gnu.org/licenses/>. + **/ + +#pragma once + +#if !defined(ORTHANC_ENABLE_SDL) +# error Macro ORTHANC_ENABLE_SDL must be defined +#endif + +#if ORTHANC_ENABLE_SDL != 1 +# error SDL must be enabled to use this file +#endif + +#if !defined(ORTHANC_ENABLE_OPENGL) +# error The macro ORTHANC_ENABLE_OPENGL must be defined +#endif + +#include "SdlOpenGLContext.h" +#include "../../../OrthancStone/Sources/Scene2D/CairoCompositor.h" +#include "../../../OrthancStone/Sources/Viewport/IViewport.h" + +#if ORTHANC_ENABLE_OPENGL == 1 +# include "../../../OrthancStone/Sources/Scene2D/OpenGLCompositor.h" +#endif + +#include <SDL_events.h> + +// TODO: required for UndoStack injection +// I don't like it either :) +#include <boost/weak_ptr.hpp> + +#include <boost/thread/recursive_mutex.hpp> +#include <boost/enable_shared_from_this.hpp> + +namespace OrthancStone +{ + class UndoStack; + + class SdlViewport : public IViewport, + public boost::enable_shared_from_this<SdlViewport> + { + private: + boost::recursive_mutex mutex_; + uint32_t refreshEvent_; + boost::shared_ptr<ViewportController> controller_; + std::unique_ptr<ICompositor> compositor_; + + void SendRefreshEvent(); + + protected: + class SdlLock : public ILock + { + private: + SdlViewport& that_; + boost::recursive_mutex::scoped_lock lock_; + + public: + explicit SdlLock(SdlViewport& that) : + that_(that), + lock_(that.mutex_) + { + } + + virtual bool HasCompositor() const ORTHANC_OVERRIDE + { + return true; + } + + virtual ICompositor& GetCompositor() ORTHANC_OVERRIDE; + + virtual ViewportController& GetController() ORTHANC_OVERRIDE + { + return *that_.controller_; + } + + virtual void Invalidate() ORTHANC_OVERRIDE + { + that_.SendRefreshEvent(); + } + + virtual void RefreshCanvasSize() ORTHANC_OVERRIDE + { + that_.RefreshCanvasSize(); + } + }; + + void ClearCompositor() + { + compositor_.reset(); + } + + void AcquireCompositor(ICompositor* compositor /* takes ownership */); + + virtual void RefreshCanvasSize() = 0; + + protected: + SdlViewport(); + + void PostConstructor(); + + public: + bool IsRefreshEvent(const SDL_Event& event) const + { + return (event.type == refreshEvent_); + } + + virtual ILock* Lock() ORTHANC_OVERRIDE + { + return new SdlLock(*this); + } + + virtual uint32_t GetSdlWindowId() = 0; + + void UpdateSize(unsigned int width, + unsigned int height); + + virtual void ToggleMaximize() = 0; + + // Must be invoked from the main SDL thread + virtual void Paint() = 0; + }; + + +#if ORTHANC_ENABLE_OPENGL == 1 + class SdlOpenGLViewport : public SdlViewport + { + private: + SdlOpenGLContext context_; + + SdlOpenGLViewport(const std::string& title, + unsigned int width, + unsigned int height, + bool allowDpiScaling = true); + + protected: + virtual void RefreshCanvasSize() ORTHANC_OVERRIDE; + + public: + static boost::shared_ptr<SdlOpenGLViewport> Create(const std::string& title, + unsigned int width, + unsigned int height, + bool allowDpiScaling = true); + + + virtual ~SdlOpenGLViewport(); + + virtual uint32_t GetSdlWindowId() ORTHANC_OVERRIDE; + + virtual void Paint() ORTHANC_OVERRIDE; + + virtual void ToggleMaximize() ORTHANC_OVERRIDE; + }; +#endif + + + class SdlCairoViewport : public SdlViewport + { + private: + SdlWindow window_; + SDL_Surface* sdlSurface_; + + void CreateSdlSurfaceFromCompositor(const CairoCompositor& compositor); + + SdlCairoViewport(const std::string& title, + unsigned int width, + unsigned int height, + bool allowDpiScaling); + + protected: + virtual void RefreshCanvasSize() ORTHANC_OVERRIDE; + + public: + static boost::shared_ptr<SdlCairoViewport> Create(const std::string& title, + unsigned int width, + unsigned int height, + bool allowDpiScaling = true); + + virtual ~SdlCairoViewport(); + + virtual uint32_t GetSdlWindowId() ORTHANC_OVERRIDE; + + virtual void Paint() ORTHANC_OVERRIDE; + + virtual void ToggleMaximize() ORTHANC_OVERRIDE; + }; +}