85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
/*
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Copyright (C) 2000-2007 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(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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#ifndef __ardour_region_factory_h__
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#define __ardour_region_factory_h__
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#include <map>
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#include "pbd/id.h"
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#include "ardour/types.h"
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#include "ardour/region.h"
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class XMLNode;
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namespace ARDOUR {
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class Session;
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class AudioRegion;
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class RegionFactory {
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public:
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static boost::shared_ptr<Region> region_by_id (const PBD::ID&);
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static void clear_map ();
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/** This is emitted only when a new id is assigned. Therefore,
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in a pure Region copy, it will not be emitted.
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It must be emitted using a derived instance of Region, not Region
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itself, to permit dynamic_cast<> to be used to
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infer the type of Region.
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*/
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static PBD::Signal1<void,boost::shared_ptr<Region> > CheckNewRegion;
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/** create a "pure copy" of Region @param other */
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static boost::shared_ptr<Region> create (boost::shared_ptr<const Region> other);
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/** create a region from a single Source */
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static boost::shared_ptr<Region> create (boost::shared_ptr<Source>,
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const PBD::PropertyList&, bool announce = true);
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/** create a region from a multiple sources */
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static boost::shared_ptr<Region> create (const SourceList &,
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const PBD::PropertyList&, bool announce = true);
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/** create a copy of @other starting at zero within @param other's sources */
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static boost::shared_ptr<Region> create (boost::shared_ptr<Region> other,
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const PBD::PropertyList&, bool announce = true);
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/** create a copy of @other starting at @param offset within @param other */
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static boost::shared_ptr<Region> create (boost::shared_ptr<Region>, frameoffset_t offset,
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const PBD::PropertyList&, bool announce = true);
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/** create a "copy" of @param other but using a different set of sources @param srcs */
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static boost::shared_ptr<Region> create (boost::shared_ptr<Region> other, const SourceList& srcs,
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const PBD::PropertyList&, bool announce = true);
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/** create a region with no sources, using XML state */
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static boost::shared_ptr<Region> create (Session&, XMLNode&, bool);
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/** create a region with specified sources @param srcs and XML state */
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static boost::shared_ptr<Region> create (SourceList& srcs, const XMLNode&);
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private:
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static std::map<PBD::ID,boost::weak_ptr<Region> > region_map;
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static void map_add (boost::shared_ptr<Region>);
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};
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}
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#endif /* __ardour_region_factory_h__ */
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