//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, SH Software Co. Ltd.
// = FileName	:   XAString.h
// = Version	:   ver2.0
// = Author		:   zjq
// = CreateDate	:   2002-09-09
// = Description:   类的声明
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _XASTRING_H_
#define _XASTRING_H_

#ifndef  _UNICODE
#define XString XAString
#define tstrchr_new strchr_new
#define tstrnew strnew
#endif

class GEOAPI XAString
{
public:
	
	XAString(int len = 256);
	XAString(const XAString &src);
	XAString(const char *format, ...);
	
	~XAString();

	int operator !  () const;
	int operator == (const char *src) const;
	int operator == (const XAString &src) const;
	int operator != (const char *src) const;
	int operator != (const XAString &src) const;

	// str的空间要足够大;
	XAString & operator << (const char *s);
	XAString & operator << (int i);
	XAString & operator << (long i);
	XAString & operator << (double r);
	XAString & operator << (double * pt);

//	XAString & operator = (int nLength);
	XAString & operator = (const XAString & src);
	XAString & operator = (const char * src);
	
	operator const char * () const;
	operator char * ();
	
	char & operator [] (int index);
	
	const char & operator [] (int index) const;

#ifndef _UNICODE
	XAString(const CString &src);

	XAString & operator = (const CString &src);
	XAString & operator << (const CString &src); 
	
	int operator == (const CString &src) const;
	int operator != (const CString &src) const;
#endif

	int Length();
	char * StrChr(char c);

public:
	char *str;
};

inline XAString::XAString(int len) 
{
	if (len <= 0)
	{
		exit(1);
	}

	str = new char [len];
	str[0] = 0;
}

inline XAString::XAString(const XAString &src)
	: str(NULL)
{
	(*this) = src.str; 
}

inline XAString::~XAString() 
{
	if (str)
	{
		delete [] str;
	}
}

#ifndef _UNICODE
inline XAString::XAString(const CString &src)
	: str(NULL) 
{
	(*this) = (const char *)src; 
}

inline XAString & XAString::operator = (const CString &src) 
{
	return ((*this) = (const char *)src);
}

inline XAString & XAString::operator << (const CString &src)
{
	// str的空间要足够大
	return ((*this) << (const char *)src);
}

inline int XAString::operator == (const CString &src) const 
{
	return ((*this) == (const char *)src);
}

inline int XAString::operator != (const CString &src) const 
{
	return ((*this) != (const char *)src);
}
#endif

inline int XAString::Length() 
{
	if (str)
	{
		return static_cast<int>(strlen(str));
	}
	else
	{
		return 0;
	}
}

inline char * XAString::StrChr(char c) 
{
	return strchr(str,c); 
}

inline XAString::operator const char * () const 
{
	return str;
}

inline XAString::operator char * ()
{
	return str; 
}

inline char& XAString::operator [] (int index) 
{
	return str[index];
}

inline const char& XAString::operator [] (int index) const 
{
	return str[index]; 
}

inline XAString& XAString::operator << (const char *s) 
{ // str的空间要足够大
	if (!str) 
	{
		str = new char [256];
		str[0] = 0;
	}
	
	strcat(str, s);
	
	return *this;
}

inline XAString& XAString::operator << (int i) 
{
	if (!str)
	{
		str = new char [256];
		str[0] = 0; 
	}

	char s[30]; 
	sprintf(s, "%d", i);
	strcat(str, s);
	
	return *this;
}

inline XAString & XAString::operator << (long i) 
{
	if (!str) 
	{
		str = new char [256];
		str[0] = 0;
	}

	char s[30];
	sprintf(s,"%ld", i);
	strcat(str, s);
	
	return *this;
}

inline XAString & XAString::operator << (double r) 
{
	if (!str)
	{
		str = new char [256];
		str[0] = 0;
	}

	char s[60];
	sprintf(s, "%g", r);
	strcat(str, s);
	
	return *this;
}

inline XAString & XAString::operator << (double * pt) 
{
	if (!str) 
	{
		str = new char [256];
		str[0] = 0;
	}

	char s[120]; 
	sprintf(s, "(%g,%g,%g)", pt[0], pt[1], pt[2]); 
	strcat(str, s);
	
	return *this;
}

inline int XAString::operator !() const 
{
	return (!str || !str[0]) ?  1 : 0;
}

inline int XAString::operator == (const char *src) const 
{
	if (!str || !src)
	{
		exit(1);
	}
	
	return !strcmp(str, src);
}

inline int XAString::operator != (const char *src) const 
{
	if (!str || !src)
	{
		exit(1);
	}
	
	return strcmp(str, src);
}

inline int XAString::operator == (const XAString &src) const 
{
	if (!str || !src.str) 
	{
		exit(1);
	}
	
	return !strcmp(str, src.str);
}

inline int XAString::operator != (const XAString &src) const 
{
	if (!str || !src.str) 
	{
		exit(1);
	}
	
	return strcmp(str, src.str);
}

#endif