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/*
Copyright (C) 2000-2007 Paul Davis
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.
*/
#ifndef __ardour_region_factory_h__
#define __ardour_region_factory_h__
#include <map>
#include "pbd/id.h"
#include "ardour/types.h"
#include "ardour/region.h"
class XMLNode;
namespace ARDOUR {
class Session;
class AudioRegion;
class RegionFactory {
public:
static boost::shared_ptr<Region> region_by_id (const PBD::ID&);
static void clear_map ();
/** This is emitted only when a new id is assigned. Therefore,
in a pure Region copy, it will not be emitted.
It must be emitted using a derived instance of Region, not Region
itself, to permit dynamic_cast<> to be used to
infer the type of Region.
*/
static PBD::Signal1<void,boost::shared_ptr<Region> > CheckNewRegion;
/** create a "pure copy" of Region @param other */
static boost::shared_ptr<Region> create (boost::shared_ptr<const Region> other);
/** create a region from a single Source */
static boost::shared_ptr<Region> create (boost::shared_ptr<Source>,
const PBD::PropertyList&, bool announce = true);
/** create a region from a multiple sources */
static boost::shared_ptr<Region> create (const SourceList &,
const PBD::PropertyList&, bool announce = true);
/** create a copy of @other starting at zero within @param other's sources */
static boost::shared_ptr<Region> create (boost::shared_ptr<Region> other,
const PBD::PropertyList&, bool announce = true);
/** create a copy of @other starting at @param offset within @param other */
static boost::shared_ptr<Region> create (boost::shared_ptr<Region>, frameoffset_t offset,
const PBD::PropertyList&, bool announce = true);
/** create a "copy" of @param other but using a different set of sources @param srcs */
static boost::shared_ptr<Region> create (boost::shared_ptr<Region> other, const SourceList& srcs,
const PBD::PropertyList&, bool announce = true);
/** create a region with no sources, using XML state */
static boost::shared_ptr<Region> create (Session&, XMLNode&, bool);
/** create a region with specified sources @param srcs and XML state */
static boost::shared_ptr<Region> create (SourceList& srcs, const XMLNode&);
private:
static std::map<PBD::ID,boost::weak_ptr<Region> > region_map;
static void map_add (boost::shared_ptr<Region>);
};
}
#endif /* __ardour_region_factory_h__ */
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