Ichthyostega
6bdf0e2cdc
(search & replace). Please feel free to add your name to any files to which you added any contributions. ALL SOURCECODE IS LICENCED UNDER THE TERMS AND CONDITIONS OF THE GPL (2 and above)
130 lines
3.5 KiB
C++
130 lines
3.5 KiB
C++
/*
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ASSETMANAGER.hpp - Facade for the Asset subsystem
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Copyright (C) CinelerraCV
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2007, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/** @file assetmanager.hpp
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** Proc-Layer Interface: Asset Lookup and Organization.
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** Declares the AssetManager interface used to access individual
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** Asset instances.
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**
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** These classes are placed into namespace asset and proc_interface.
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**
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** @see asset.hpp
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** @see mobject.hpp
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*/
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#ifndef PROC_INTERFACE_ASSETMANAGER_H
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#define PROC_INTERFACE_ASSETMANAGER_H
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#include "proc/asset.hpp"
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#include "common/error.hpp"
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#include "common/singleton.hpp"
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#include <cstddef>
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#include <string>
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#include <list>
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#include <boost/utility.hpp>
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using std::string;
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using std::list;
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namespace asset
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{
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class DB;
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/**
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* Facade for the Asset subsystem
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*/
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class AssetManager : private boost::noncopyable
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{
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asset::DB & registry;
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public:
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static cinelerra::Singleton<AssetManager> instance;
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/** provide the unique ID for given Asset::Ident tuple */
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static ID<Asset> getID (const Asset::Ident&);
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/** retrieve the registerd shared_ptr for any asset */
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template<class KIND>
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static shared_ptr<KIND> getPtr (const KIND& asset);
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/** find and return corresponging object */
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template<class KIND>
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shared_ptr<KIND> getAsset (const ID<KIND>& id) throw(cinelerra::error::Invalid);
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/** @return true if the given id is registered in the internal asset DB */
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bool known (IDA id) ;
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/** @return true if the given id is registered with the given Category */
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bool known (IDA id, const Category& cat) ;
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/**remove the given asset from the internal DB.
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* <i>together with all its dependants</i> */
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void remove (IDA id) ;
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/** extract a sorted list of all registered Assets */
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list<PcAsset> listContent() const;
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protected:
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/** registers an asset object in the internal DB, providing its unique key.
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* @internal used by the Asset base class ctor to create Asset::id.
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*/
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template<class KIND>
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static ID<KIND> reg (KIND* obj, const Asset::Ident& idi)
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throw(cinelerra::error::Invalid);
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/** deleter function used by the Asset smart pointers to delete Asset objects */
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static void destroy (Asset* aa) { delete aa; }
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friend Asset::Asset (const Asset::Ident& idi);
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AssetManager ();
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friend class cinelerra::singleton::StaticCreate<AssetManager>;
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};
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CINELERRA_ERROR_DECLARE (UNKNOWN_ASSET_ID); ///< use of a non-registered Asset ID.
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CINELERRA_ERROR_DECLARE (WRONG_ASSET_KIND); ///< Asset ID of wrong Asset kind, unable to cast.
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} // namespace asset
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namespace proc_interface
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{
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using asset::AssetManager;
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}
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#endif
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