FvStringW.h

[詳解]

//  $Revision: 1.3 $
/*
    @file   FvStringW.h
    @brief  CFvStringW class interface
    @author FAST Corporation
*/

#ifndef _FVSTRINGW_H_INCLUDED_
#define _FVSTRINGW_H_INCLUDED_

#include "FvDataObject.h"
#include "MultiData/FvArrayAllocator.h"
#include "FvException.h"

#pragma pack(push,_FVCL_PACKING)

namespace FVCL
{
namespace Data
{

class FVCL_API CFvStringW : public CFvDataObject
{
public:
    enum
    {
        DefaultInitial = 256,           // initial size
        DefaultIncrease = 128           // increase size
    };

private:
    void _Constructor();

public:
    CFvStringW();
    CFvStringW( const CFvStringW& str );
    CFvStringW( const WCHAR* str );
    virtual ~CFvStringW();
    
    enum { DataID = 19 };

    virtual INT GetDataID() const;
    virtual bool GetPointer( INT id, void** val ) const;
    
    virtual bool Resize( UINT sz, WCHAR init=0x20 );
    virtual UINT GetLength() const;
    virtual WCHAR* GetBuffer() const;
    virtual WCHAR GetAt(UINT index) const;
    virtual WCHAR SetAt(UINT index, WCHAR val);
    virtual CFvStringW& CopySub( const CFvStringW& src, UINT begin, UINT end );
    virtual UINT GetTypeSize() const;
    virtual bool Format(const WCHAR* format, ...);
    virtual bool FormatV(const WCHAR* format, va_list arg_list );

    static CFvStringW FormatS(const WCHAR* format, ...);
    
    virtual       WCHAR& operator [] ( UINT index );
    virtual const WCHAR& operator [] ( UINT index ) const;
    virtual CFvStringW& operator = ( const CFvStringW& src );
    virtual CFvStringW& operator = ( LPCWSTR src );
    virtual bool operator == ( const CFvStringW& src ) const;
    virtual bool operator != ( const CFvStringW& src ) const;
    virtual bool operator == ( LPCWSTR src ) const;
    virtual bool operator != ( LPCWSTR src ) const;
    virtual CFvStringW operator + ( const CFvStringW& src );
    virtual CFvStringW operator + ( LPCWSTR src );
    virtual CFvStringW& operator += ( const CFvStringW& src );
    virtual CFvStringW& operator += ( LPCWSTR src );
    virtual operator LPCWSTR() const;

protected:
    UINT fnGetLength( const WCHAR* str ) const;
    void fnCopy( const WCHAR* src, WCHAR* dst, UINT src_start, UINT dst_start, UINT sz ) const;
    void fnStrCopy( const WCHAR* src, WCHAR* dst ) const;

private:
    CFvArrayAllocator<WCHAR> m_str;
};

}   // Data

}   // FVCL

#pragma pack(pop)

#endif  //_FVSTRINGW_H_INCLUDED_