symbian 下的helix player源代码

				/* ***** BEGIN LICENSE BLOCK *****
				 * Source last modified: $Id: hxtac.h,v 1.5.20.1.2.1 2004/12/13 23:32:32 gwright Exp $
				 * 
				 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
				 * 
				 * The contents of this file, and the files included with this file,
				 * are subject to the current version of the RealNetworks Public
				 * Source License (the "RPSL") available at
				 * http://www.helixcommunity.org/content/rpsl unless you have licensed
				 * the file under the current version of the RealNetworks Community
				 * Source License (the "RCSL") available at
				 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
				 * will apply. You may also obtain the license terms directly from
				 * RealNetworks.  You may not use this file except in compliance with
				 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
				 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
				 * the rights, obligations and limitations governing use of the
				 * contents of the file.
				 * 
				 * Alternatively, the contents of this file may be used under the
				 * terms of the GNU General Public License Version 2 or later (the
				 * "GPL") in which case the provisions of the GPL are applicable
				 * instead of those above. If you wish to allow use of your version of
				 * this file only under the terms of the GPL, and not to allow others
				 * to use your version of this file under the terms of either the RPSL
				 * or RCSL, indicate your decision by deleting the provisions above
				 * and replace them with the notice and other provisions required by
				 * the GPL. If you do not delete the provisions above, a recipient may
				 * use your version of this file under the terms of any one of the
				 * RPSL, the RCSL or the GPL.
				 * 
				 * This file is part of the Helix DNA Technology. RealNetworks is the
				 * developer of the Original Code and owns the copyrights in the
				 * portions it created.
				 * 
				 * This file, and the files included with this file, is distributed
				 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
				 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
				 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
				 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
				 * ENJOYMENT OR NON-INFRINGEMENT.
				 * 
				 * Technology Compatibility Kit Test Suite(s) Location:
				 *    http://www.helixcommunity.org/content/tck
				 * 
				 * Contributor(s):
				 * 
				 * ***** END LICENSE BLOCK ***** */
				
				#ifndef _MASTERTAC_H_
				#define _MASTERTAC_H_
				
				
				
				typedef enum _TACStatus
				{
				    TAC_Pending = 0,
				    TAC_Source = 1,
				    TAC_Track = 2,
				    TAC_Group = 3,
					TAC_Presentation = 4
				} TACStatus;
				
				#define NUMB_TAC_NAMES 6
				
				// forward class declares
				class HXPlayer;
				class HXClientRegistry;
				class HXBasicGroupManager;
				
				
				
				// HXMasterTAC class definition
				class HXMasterTAC 
				#if defined(HELIX_FEATURE_REGISTRY)
						: public IHXPropWatchResponse
				#endif /* HELIX_FEATURE_REGISTRY */
				{
				
				public:
				    HXMasterTAC(HXBasicGroupManager* pGroupManager);
				    virtual ~HXMasterTAC();
				
				    void		SetRegistry(HXClientRegistry* pRegistry, UINT32 ID);
				
				    void		SetTAC(IHXValues* tacProps, TACStatus status);
				    void		ResetTAC(BOOL bResetStatus = TRUE, BOOL bClearMasterProps = FALSE);
				    BOOL		CheckTrackAndSourceOnTrackStarted(INT32 nGroup, INT32 nTrack, UINT32 sourceID);
				
				    BOOL		CheckPresentationForTACInfo();
				    BOOL		CheckTrackForTACInfo(INT32 nGroup, INT32 nTrack);
				    BOOL		CheckSourceForTACInfo(INT32 nGroup, INT32 nTrack, UINT32 sourceID);
				
				    BOOL		CheckGroupForTACInfo(INT32 nGroup);
				
				    BOOL		IsTACComplete(IHXValues* pProps);
				    void		Close();
				
				protected:
				    LONG32		m_lRefCount;
				
				public:
				
				    /*
				     * IUnknown methods
				     */
				    STDMETHOD(QueryInterface)	(THIS_
								REFIID riid,
								void** ppvObj);
				
				    STDMETHOD_(ULONG32,AddRef)	(THIS);
				
				    STDMETHOD_(ULONG32,Release)	(THIS);
				
				#if defined(HELIX_FEATURE_REGISTRY)
				    //IHXPropWatchResponse methods
				    STDMETHOD(AddedProp)	(THIS_
								const UINT32		id,
								const HXPropType   	propType,
								const UINT32		ulParentHash);
				
				    STDMETHOD(ModifiedProp)	(THIS_
								const UINT32		id,
								const HXPropType   	propType,
								const UINT32		ulParentHash);
				
				    STDMETHOD(DeletedProp)	(THIS_
								const UINT32		id,
								const UINT32		ulParentHash);
				#endif /* HELIX_FEATURE_REGISTRY */
				
				private:
				#if defined(HELIX_FEATURE_REGISTRY)
				    HXClientRegistry*		m_pRegistry;
				#endif /* HELIX_FEATURE_REGISTRY */
				    HXBasicGroupManager*	m_pGroupManager;
				
				    IHXValues*			m_pTACProps;
				    TACStatus			m_tacStatus;
				    IHXPropWatch*		m_pTACPropWatch;
				    //UINT32			m_tacPropIDs[4];
				    CHXSimpleList*		m_ptacPropIDs;
				    UINT32              m_masterTACPropIDs[NUMB_TAC_NAMES];
				
				    void    RetrieveTACProperties(IHXValues* pFromProps);
				};
				
				// TAC data class
				class TACData
				{
				public:
				    TACData()
				    {
					m_titleID = 0;
					m_authorID = 0;
					m_copyrightID = 0;
					m_abstractID = 0;
					m_keywordsID = 0;
					m_descriptionID = 0;
				    }
				
				    UINT32 FindMasterIndex(UINT32 sourcePropID);
				    void ClearAll(IHXPropWatch* pPropWatch);
				    BOOL IsIDPresent(UINT32 sourcePropID);
				    void Clear(UINT32 sourcePropID);
				    void SetPropAndWatch(UINT32 n, UINT32 propID, IHXPropWatch* pPropWatch);
				
				    static const UINT32 NoFind;
				
				    UINT32 m_titleID;
				    UINT32 m_authorID;
				    UINT32 m_copyrightID;
				    UINT32 m_abstractID;
				    UINT32 m_keywordsID;
				    UINT32 m_descriptionID;
				};
				
				#endif	// _MASTERTAC_H_