/*	Copyright: 	© Copyright 2005 Apple Computer, Inc. All rights reserved.

	Disclaimer:	IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
			("Apple") in consideration of your agreement to the following terms, and your
			use, installation, modification or redistribution of this Apple software
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			please do not use, install, modify or redistribute this Apple software.

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			copyrights in this original Apple software (the "Apple Software"), to use,
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			Apple Software without specific prior written permission from Apple.  Except as
			expressly stated in this notice, no other rights or licenses, express or implied,
			are granted by Apple herein, including but not limited to any patent rights that
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*/
/*=============================================================================
	CACFString.cp

=============================================================================*/

//=============================================================================
//	Includes
//=============================================================================

#include "CACFString.h"

//=============================================================================
//	CACFString
//=============================================================================

UInt32	CACFString::GetStringByteLength(CFStringRef inCFString, CFStringEncoding inEncoding)
{
	UInt32 theAnswer = 0;

	if(inCFString != NULL)
	{
		CFRange theRange = { 0, CFStringGetLength(inCFString) };
		CFStringGetBytes(inCFString, theRange, inEncoding, 0, false, NULL, 0x7FFFFFFF, (CFIndex*)&theAnswer);
	}

	return theAnswer;
}

void	CACFString::GetCString(CFStringRef inCFString, char* outString, UInt32& ioStringSize, CFStringEncoding inEncoding)
{
	if(ioStringSize > 0)
	{
		if(inCFString != NULL)
		{
			CFIndex theLength = 0;
			CFRange theRange = { 0, CFStringGetLength(inCFString) };
			CFStringGetBytes(inCFString, theRange, inEncoding, 0, false, (UInt8*)outString, ioStringSize - 1, &theLength);
			outString[theLength] = 0;
			ioStringSize = theLength + 1;
		}
		else
		{
			outString[0] = 0;
			ioStringSize = 1;
		}
	}
}

void	CACFString::GetUnicodeString(CFStringRef inCFString, UInt16* outString, UInt32& ioStringSize)
{
	if(ioStringSize > 0)
	{
		if(inCFString != NULL)
		{
			CFRange theStringRange = { 0, CFStringGetLength(inCFString) };
			if(static_cast<UInt32>(theStringRange.length) > ioStringSize)
			{
				theStringRange.length = ioStringSize;
			}
			CFStringGetCharacters(inCFString, theStringRange, outString);
			ioStringSize = theStringRange.length;
		}
		else
		{
			outString[0] = 0;
			ioStringSize = 0;
		}
	}
}
