lumiera_/src/proc/asset/preview.cpp
Ichthyostega 5f0c9e209e remove any use of boost::function in favour of <tr1/functional>
this resolves some long standing problems with ambiguous placeholders
closes Ticket #161
2009-07-19 05:47:36 +02:00

69 lines
2.3 KiB
C++

/*
Preview(Asset) - alternative version of the media data, probably with lower resolution
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.
* *****************************************************/
#include "proc/asset/preview.hpp"
namespace asset
{
namespace
{
/** @internal derive a sensible asset ident tuple when creating
* a proxy placeholder media based on some existing asset::Media
* @todo getting this one right is important for the handling
* of "proxy editing"....
*/
const Asset::Ident
createProxyIdent (const Asset::Ident& mediaref)
{
string name (mediaref.name + "-proxy"); // TODO something sensible here; append number, sanitise etc.
Category category (mediaref.category);
TODO ("put it in another subfolder within the same category??");
return Asset::Ident (name, category,
mediaref.org,
mediaref.version );
}
}
/** create a preview placeholder ("proxy media") for the given
* media asset. The name of the created media asset is derived
* by decorating the original media's name.
* @note creates a dependency between the media and this proxy
*/
Preview::Preview (Media& mediaref)
: Unknown (createProxyIdent (mediaref.ident),
mediaref.getFilename(),
mediaref.getLength())
{
this->defineDependency (mediaref);
UNIMPLEMENTED ("do something to setup proxy media");
}
} // namespace asset