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/************************************************************************
*
* Copyright (C) 2014-2024 IRCAD France
* Copyright (C) 2014-2020 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight 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.
*
* Sight 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 Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#pragma once
#include <sight/viz/scene3d/config.hpp>
#include <core/base.hpp>
#include <core/lazy_instantiator.hpp>
#include <OGRE/OgreRenderWindow.h>
namespace sight::viz::scene3d
{
/**
* @brief This singleton stores all Ogre render windows and manage their deletion.
*
* The problem is that the OpenGLRenderSystem we use, somehow, needs the first window created to be deleted last.
* This class allows to differ the deletion of the first created window.
*/
class SIGHT_VIZ_SCENE3D_CLASS_API window_manager : public core::base_object
{
public:
SIGHT_DECLARE_CLASS(window_manager, viz::scene3d::window_manager);
SIGHT_ALLOW_SHARED_FROM_THIS()
/// Registers an Ogre window.
SIGHT_VIZ_SCENE3D_API void add(Ogre::RenderWindow* _window);
/// Unregisters an Ogre window.
SIGHT_VIZ_SCENE3D_API void remove(Ogre::RenderWindow* _window);
/// Gets an Ogre window.
SIGHT_VIZ_SCENE3D_API Ogre::RenderWindow* get(const std::string& _name) const;
/**
* @brief Gets the unique instance of this class.
* @return the singleton instance.
*/
SIGHT_VIZ_SCENE3D_API static viz::scene3d::window_manager::sptr get();
/**
* @brief Returns true if there is at least one window.
* @@return true if at least one window is registered.
*/
SIGHT_VIZ_SCENE3D_API bool has_window();
private:
/// Stores all Ogre windows.
std::set<Ogre::RenderWindow*> m_windows;
};
} // namespace sight::viz::scene3d.
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