mac_pref_cf.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: mac_pref_cf.h,v 1.4.32.3 2004/07/09 01:47:45 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
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#pragma once

#ifndef _CARBON
#ifndef _MAC_UNIX
#error use mac_pref.h instead for non-carbon builds
#endif
#endif

#include "pref.h"
#include "cfwrappers.h"
#include "hxstring.h"
#include "mac_pref_file.h"
#include "carray.h"

class CMacPref : public CPref 
{
public:
	/* 	call open_pref() to automatically create the correct Mac specific preference object. */
	/*	This will put the product prefs into RealPlayer's prefs file; to create a separate prefs file,
	        precede the product name with !, like "!RealProducer". */
	static	CMacPref	*open_pref (const char* pCompanyName, const char* pProductName, int nProdMajorVer, int nProdMinorVer, BOOL bCommon = TRUE);
	
	/* 	class destructor - writes prefs to disk. */	
	virtual ~CMacPref 			(void);

	/*  read_pref reads the preference specified by Key to the Buffer. */	
    	HX_RESULT	read_pref   (const char* pPrefKey, IHXBuffer*& pBuffer);   
                                                                        
	/*  write_pref writes (to memory) the preference specified by Key from the Buffer. */	                                                                            
    	HX_RESULT    write_pref      (const char* pPrefKey, IHXBuffer* pBuffer); 

	/*  delete_pref deletes the preference specified by Key from the Buffer. */	                                                                            
    	HX_RESULT    delete_pref      (const char* pPrefKey); 

	HX_RESULT last_error (void)	{ return mLastError; } // GR 3/12/02 do we need this here?

   	virtual HX_RESULT   remove_pref(const char* pPrefKey);
   	virtual HX_RESULT   remove_indexed_pref(const char* pPrefKey);

   	HX_RESULT	BeginSubPref(const char* szSubPref);
   	HX_RESULT	EndSubPref();

   	HX_RESULT	GetPrefKey(UINT32 nIndex,IHXBuffer*& pBuffer);
   	
	HX_RESULT commit_prefs();
	
private:	
	// Constructor NOTE: use open_pref() to create an instance of this class
	CMacPref(const char* pCompanyName, const char* pProductName, int nProdMajorVer, int nProdMinorVer, BOOL bCommon);		// ctor

	/*
	CFStringRef	m_UserNameRef;	// is kCFPreferencesAnyUser or kCFPreferencesCurrentUser depending on bCommon
	CFStringRef	m_HostNameRef;	// is kCFPreferencesCurrentHost or kCFPreferencesAnyHost depending on bCommon

	CHXCFString 	m_cfsPrefsBundleName;
	*/
	CMacPrefFile*	m_pPrefFile;
	
	CHXString	m_strProductNamePrefix; // product name becomes the beginning of each pref prefix, like RealMediaSDK\ or similar
	CHXString 	m_strSubPrefPrefix;     // empty or "SubPref\" or "Sub1\Sub2\", etc
	
	CHXPtrArray	m_arrSubKeyStack; // when we're in nested BeginSubPrefs, stores previous CHXStrings with the prefixes
	
   	HX_RESULT GetPrefKeyInternal(UINT32 nIndex,BOOL bReturnDeeperNestings,CHXString& outStrKey);
   	void RemoveSinglePrefInternal(const char* pPrefKey);
   	
	void MakePrefKeyCF(const char *pPrefKey, CHXCFString& outCfsRealKey);
	void MakePrefKey(const char *pPrefKey, CHXString& outMadeKey);
	
	HX_RESULT MakeIHXBuffer(const char *pData, IHXBuffer*& pBuffer);
	
	void EndAllSubPrefs();

 };