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b1887d62b8
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@124 0778d3d1-df1d-0410-868b-ea421aaaa00d
94 lines
2.1 KiB
C++
94 lines
2.1 KiB
C++
/*
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* play_handle.h - base-class playHandle which is needed by
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* LMMS-Player-Engine
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*
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* Copyright (c) 2004-2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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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
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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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 GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _PLAY_HANDLE_H
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#define _PLAY_HANDLE_H
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "qt3support.h"
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#ifdef QT4
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#include <QtCore/QVector>
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#else
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#include <qvaluevector.h>
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#endif
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class playHandle
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{
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public:
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enum types
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{
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NOTE_PLAY_HANDLE, INSTRUMENT_PLAY_HANDLE, SAMPLE_PLAY_HANDLE,
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PRESET_PREVIEW_PLAY_HANDLE
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} ;
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playHandle( const types _type ) :
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m_type( _type )
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{
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}
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virtual inline ~playHandle()
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{
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}
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inline types type( void ) const
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{
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return( m_type );
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}
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virtual void play( void ) = 0;
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virtual bool done( void ) const = 0;
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// play-handles can invalidate themselves if an object they depend on
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// is going to be deleted or things like that - every of those objects
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// has to call mixer::inst()->checkValidityOfPlayHandles() in it's dtor
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// and set flag before, so LMMS doesn't crash because these play-handles
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// would continue using pointers to deleted objects...
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virtual void checkValidity( void )
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{
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}
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private:
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types m_type;
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} ;
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typedef vvector<playHandle *> playHandleVector;
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typedef vvector<const playHandle *> constPlayHandleVector;
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#endif
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