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)
106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
/*
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META.hpp - key abstraction: metadata and organisational asset
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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 meta.hpp
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** Some Metatdata elements (e.g. Automation Datasets) can be treated as
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** specific Kind of Asset.
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** For the different <i>Kinds</i> of Assets, we use sub-intefaces inheriting
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** from the general Asset interface. To be able to get asset::Meta instances
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** directly from the AssetManager, we define a specialization of the Asset ID.
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**
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** @see asset.hpp for explanation
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** @see MetaFactory creating concrete asset::Meta instances
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**
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*/
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#ifndef ASSET_META_H
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#define ASSET_META_H
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#include "proc/asset.hpp"
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#include "common/factory.hpp"
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namespace asset
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{
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class Meta;
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class MetaFactory;
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template<>
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class ID<Meta> : public ID<Asset>
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{
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public:
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ID (size_t id);
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ID (const Meta&);
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};
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/**
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* key abstraction: metadata and organisational asset
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* @todo just a stub, have to figure out what a asset::Proc is
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*/
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class Meta : public Asset
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{
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public:
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static MetaFactory create;
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virtual const ID<Meta>& getID() const ///< @return ID of kind Meta
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{
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return static_cast<const ID<Meta>& > (Asset::getID());
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}
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protected:
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Meta (const Asset::Ident& idi) : Asset(idi) {} //////////////TODO
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friend class MetaFactory;
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};
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// definition of ID<Meta> ctors is possible now,
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// after providing full definition of class Proc
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inline ID<Meta>::ID(size_t id) : ID<Asset> (id) {};
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inline ID<Meta>::ID(const Meta& meta) : ID<Asset> (meta.getID()) {};
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/**
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* Factory specialized for createing Metadata Asset objects.
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*/
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class MetaFactory : public cinelerra::Factory<asset::Meta>
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{
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public:
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typedef shared_ptr<asset::Meta> PType;
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PType operator() (Asset::Ident& key); ////////////TODO define actual operation
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};
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} // namespace asset
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#endif
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