/*
     File: CACFString.h 
 Abstract:  Part of CoreAudio Utility Classes  
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*/
#if !defined(__CACFString_h__)
#define __CACFString_h__

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

#include "CADebugMacros.h"

#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
	#include <CoreAudio/CoreAudioTypes.h>
	#include <CoreFoundation/CFString.h>
#else
	#include <CoreAudioTypes.h>
	#include <CFString.h>
#endif

//=============================================================================
//	CACFString
//
//	Notes
//	-	Using the AssignWithoutRetain() method will fool the static analyzer into thinking that the
//		CFString being assigned will be leaked. This is because the static analyzer is not smart
//		enough to understand that the destructor will release the object.
//=============================================================================

class	CACFString
{
//	Construction/Destruction
public:
						CACFString() : mCFString(NULL), mWillRelease(true) {}
						CACFString(CFStringRef inCFString, bool inWillRelease = true) : mCFString(inCFString), mWillRelease(inWillRelease) {}
						CACFString(const char* inCString, bool inWillRelease = true) : mCFString(CFStringCreateWithCString(NULL, inCString, kCFStringEncodingASCII)), mWillRelease(inWillRelease) {}
						CACFString(const char* inCString, CFStringEncoding inCStringEncoding, bool inWillRelease = true) : mCFString(CFStringCreateWithCString(NULL, inCString, inCStringEncoding)), mWillRelease(inWillRelease) {}
						~CACFString() { Release(); }
						CACFString(const CACFString& inString) : mCFString(inString.mCFString), mWillRelease(inString.mWillRelease) { Retain(); }
	CACFString&			operator=(const CACFString& inString) { if (inString.mCFString != mCFString) { Release(); mCFString = inString.mCFString; mWillRelease = inString.mWillRelease; Retain(); } return *this; }
	CACFString&			operator=(CFStringRef inCFString) { if (inCFString != mCFString) { Release(); mCFString = inCFString; } mWillRelease = true; Retain(); return *this; }
	void				AssignWithoutRetain(CFStringRef inCFString) { if (inCFString != mCFString) { Release(); mCFString = inCFString; } mWillRelease = true; }

private:
	void				Retain() { if(mWillRelease && (mCFString != NULL)) { CFRetain(mCFString); } }
	void				Release() { if(mWillRelease && (mCFString != NULL)) { CFRelease(mCFString); } }
	
	CFStringRef			mCFString;
	bool				mWillRelease;

//	Operations
public:
	void				AllowRelease() { mWillRelease = true; }
	void				DontAllowRelease() { mWillRelease = false; }
	bool				IsValid() const { return mCFString != NULL; }
	bool				IsEqualTo(CFStringRef inString) const { bool theAnswer = false; if(mCFString != NULL) { theAnswer = CFStringCompare(inString, mCFString, 0) == kCFCompareEqualTo; } return theAnswer; }
	bool				StartsWith(CFStringRef inString) const { bool theAnswer = false; if(mCFString != NULL) { theAnswer = CFStringHasPrefix(mCFString, inString); } return theAnswer; }
	bool				EndsWith(CFStringRef inString) const { bool theAnswer = false; if(mCFString != NULL) { theAnswer = CFStringHasSuffix(mCFString, inString); } return theAnswer; }

//	Value Access
public:
	CFStringRef			GetCFString() const { return mCFString; }
	CFStringRef			CopyCFString() const { if(mCFString != NULL) { CFRetain(mCFString); } return mCFString; }
	const CFStringRef*	GetPointerToStorage() const	{ return &mCFString; }
	CFStringRef&		GetStorage() { Release(); mWillRelease = true; return mCFString; }
	UInt32				GetLength() const { UInt32 theAnswer = 0; if(mCFString != NULL) { theAnswer = ToUInt32(CFStringGetLength(mCFString)); } return theAnswer; }
	UInt32				GetByteLength(CFStringEncoding inEncoding = kCFStringEncodingUTF8) const { UInt32 theAnswer = 0; if(mCFString != NULL) { theAnswer = GetStringByteLength(mCFString, inEncoding); } return theAnswer; }
	void				GetCString(char* outString, UInt32& ioStringSize, CFStringEncoding inEncoding = kCFStringEncodingUTF8) const { GetCString(mCFString, outString, ioStringSize, inEncoding); }
	void				GetUnicodeString(UInt16* outString, UInt32& ioStringSize) const { GetUnicodeString(mCFString, outString, ioStringSize); }
	SInt32				GetAsInteger() { return GetAsInteger(mCFString); }
	Float64				GetAsFloat64() { return GetAsFloat64(mCFString); }

	static UInt32		GetStringLength(CFStringRef inCFString)  { UInt32 theAnswer = 0; if(inCFString != NULL) { theAnswer = ToUInt32(CFStringGetLength(inCFString)); } return theAnswer; }
	static UInt32		GetStringByteLength(CFStringRef inCFString, CFStringEncoding inEncoding = kCFStringEncodingUTF8);
	static void			GetCString(CFStringRef inCFString, char* outString, UInt32& ioStringSize, CFStringEncoding inEncoding = kCFStringEncodingUTF8);
	static void			GetUnicodeString(CFStringRef inCFString, UInt16* outString, UInt32& ioStringSize);
	static SInt32		GetAsInteger(CFStringRef inCFString) { SInt32 theAnswer = 0; if(inCFString != NULL){ theAnswer = CFStringGetIntValue(inCFString); } return theAnswer; }
	static Float64		GetAsFloat64(CFStringRef inCFString) { Float64 theAnswer = 0; if(inCFString != NULL){ theAnswer = CFStringGetDoubleValue(inCFString); } return theAnswer; }
	
};

inline bool	operator<(const CACFString& x, const CACFString& y) { return CFStringCompare(x.GetCFString(), y.GetCFString(), 0) == kCFCompareLessThan; }
inline bool	operator==(const CACFString& x, const CACFString& y) { return CFStringCompare(x.GetCFString(), y.GetCFString(), 0) == kCFCompareEqualTo; }
inline bool	operator!=(const CACFString& x, const CACFString& y) { return !(x == y); }
inline bool	operator<=(const CACFString& x, const CACFString& y) { return (x < y) || (x == y); }
inline bool	operator>=(const CACFString& x, const CACFString& y) { return !(x < y); }
inline bool	operator>(const CACFString& x, const CACFString& y) { return !((x < y) || (x == y)); }

//=============================================================================
//	CACFMutableString
//=============================================================================

class	CACFMutableString
{
//	Construction/Destruction
public:
						CACFMutableString() : mCFMutableString(NULL), mWillRelease(true) {}
						CACFMutableString(CFMutableStringRef inCFMutableString, bool inWillRelease = true) : mCFMutableString(inCFMutableString), mWillRelease(inWillRelease) {}
						CACFMutableString(CFStringRef inStringToCopy, bool /*inMakeCopy*/, bool inWillRelease = true) : mCFMutableString(CFStringCreateMutableCopy(NULL, 0, inStringToCopy)), mWillRelease(inWillRelease) {}
						CACFMutableString(const char* inCString, bool inWillRelease = true) : mCFMutableString(NULL), mWillRelease(inWillRelease) { CACFString theString(inCString); mCFMutableString = CFStringCreateMutableCopy(NULL, 0, theString.GetCFString()); }
						CACFMutableString(const char* inCString, CFStringEncoding inCStringEncoding, bool inWillRelease = true) : mCFMutableString(NULL), mWillRelease(inWillRelease) { CACFString theString(inCString, inCStringEncoding); mCFMutableString = CFStringCreateMutableCopy(NULL, 0, theString.GetCFString()); }
						~CACFMutableString() { Release(); }
						CACFMutableString(const CACFMutableString& inString) : mCFMutableString(inString.mCFMutableString), mWillRelease(inString.mWillRelease) { Retain(); }
	CACFMutableString&	operator=(const CACFMutableString& inString) { Release(); mCFMutableString = inString.mCFMutableString; mWillRelease = inString.mWillRelease; Retain(); return *this; }
	CACFMutableString&	operator=(CFMutableStringRef inCFMutableString) { Release(); mCFMutableString = inCFMutableString; mWillRelease = true; return *this; }

private:
	void				Retain() { if(mWillRelease && (mCFMutableString != NULL)) { CFRetain(mCFMutableString); } }
	void				Release() { if(mWillRelease && (mCFMutableString != NULL)) { CFRelease(mCFMutableString); } }
	
	CFMutableStringRef	mCFMutableString;
	bool				mWillRelease;

//	Operations
public:
	void				AllowRelease() { mWillRelease = true; }
	void				DontAllowRelease() { mWillRelease = false; }
	bool				IsValid() { return mCFMutableString != NULL; }
	bool				IsEqualTo(CFStringRef inString) const { bool theAnswer = false; if(mCFMutableString != NULL) { theAnswer = CFStringCompare(inString, mCFMutableString, 0) == kCFCompareEqualTo; } return theAnswer; }
	bool				StartsWith(CFStringRef inString) const { bool theAnswer = false; if(mCFMutableString != NULL) { theAnswer = CFStringHasPrefix(mCFMutableString, inString); } return theAnswer; }
	bool				EndsWith(CFStringRef inString) const { bool theAnswer = false; if(mCFMutableString != NULL) { theAnswer = CFStringHasSuffix(mCFMutableString, inString); } return theAnswer; }
	void				Append(CFStringRef inString) { if(mCFMutableString != NULL) { CFStringAppend(mCFMutableString, inString); } }

//	Value Access
public:
	CFMutableStringRef	GetCFMutableString() const { return mCFMutableString; }
	CFMutableStringRef	CopyCFMutableString() const { if(mCFMutableString != NULL) { CFRetain(mCFMutableString); } return mCFMutableString; }
	UInt32				GetLength() const { UInt32 theAnswer = 0; if(mCFMutableString != NULL) { theAnswer = ToUInt32(CFStringGetLength(mCFMutableString)); } return theAnswer; }
	UInt32				GetByteLength(CFStringEncoding inEncoding = kCFStringEncodingUTF8) const { UInt32 theAnswer = 0; if(mCFMutableString != NULL) { theAnswer = CACFString::GetStringByteLength(mCFMutableString, inEncoding); } return theAnswer; }
	void				GetCString(char* outString, UInt32& ioStringSize, CFStringEncoding inEncoding = kCFStringEncodingUTF8) const { CACFString::GetCString(mCFMutableString, outString, ioStringSize, inEncoding); }
	void				GetUnicodeString(UInt16* outString, UInt32& ioStringSize) const { CACFString::GetUnicodeString(mCFMutableString, outString, ioStringSize); }
	SInt32				GetAsInteger() { return CACFString::GetAsInteger(mCFMutableString); }
	Float64				GetAsFloat64() { return CACFString::GetAsFloat64(mCFMutableString); }

};

#endif