lumiera_/src/proc/asset/struct.hpp

106 lines
2.7 KiB
C++

/*
STRUCT.hpp - key abstraction: structural asset
Copyright (C) Lumiera.org
2008, Hermann Vosseler <Ichthyostega@web.de>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file struct.hpp
** Structural facilities of the EDL (e.g. Tracks) can be treated in the
** "bookkeeping view" as a specific Kind of Asset.
** For the different <i>Kinds</i> of Assets, we use sub-intefaces inheriting
** from the general Asset interface. To be able to get asset::Struct instances
** directly from the AssetManager, we define a specialization of the Asset ID.
**
** @see asset.hpp for explanation
** @see StructFactory creating concrete asset::Struct instances
**
*/
#ifndef ASSET_STRUCT_H
#define ASSET_STRUCT_H
#include "proc/asset.hpp"
#include "common/factory.hpp"
namespace asset
{
class Struct;
class StructFactory;
template<>
class ID<Struct> : public ID<Asset>
{
public:
ID (size_t id);
ID (const Struct&);
};
/**
* key abstraction: structural asset
* @todo just a stub, have to figure out what a asset::Proc is
*/
class Struct : public Asset
{
public:
static StructFactory create;
virtual const ID<Struct>& getID() const ///< @return ID of kind asset::Struct
{
return static_cast<const ID<Struct>& > (Asset::getID());
}
protected:
Struct (const Asset::Ident& idi) : Asset(idi) {} //////////////TODO
friend class StructFactory;
};
// definition of ID<Struct> ctors is possible now,
// after providing full definition of class Proc
inline ID<Struct>::ID(size_t id) : ID<Asset> (id) {};
inline ID<Struct>::ID(const Struct& stru) : ID<Asset> (stru.getID()) {};
/**
* Factory specialized for createing Structural Asset objects.
*/
class StructFactory : public lumiera::Factory<asset::Struct>
{
public:
typedef shared_ptr<asset::Struct> PType;
PType operator() (Asset::Ident& key); ////////////TODO define actual operation
};
} // namespace asset
#endif