123 lines
3.9 KiB
C++
123 lines
3.9 KiB
C++
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Microsoft Windows
|
||
|
|
// Copyright (C) Microsoft Corporation, 1993 - 1998.
|
||
|
|
//
|
||
|
|
// File: tfilt.hxx
|
||
|
|
//
|
||
|
|
// Contents: Text filter
|
||
|
|
//
|
||
|
|
// Classes: CTextIFilter
|
||
|
|
//
|
||
|
|
// History: 16-Jul-93 AmyA Created
|
||
|
|
// 08-Mar-94 KyleP Cleaned up
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <txtifilt.hxx>
|
||
|
|
#include <mmstrm.hxx>
|
||
|
|
#include <mmistrm.hxx>
|
||
|
|
#include <mmscbuf.hxx>
|
||
|
|
|
||
|
|
class CTextIFilterBase;
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Class: CTextIFilter
|
||
|
|
//
|
||
|
|
// Purpose: Text Filter
|
||
|
|
//
|
||
|
|
// History: 16-Jul-93 AmyA Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
class CTextIFilter : public CTextIFilterBase
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Since text files have no language specifier, just use the
|
||
|
|
// default locale.
|
||
|
|
//
|
||
|
|
CTextIFilter( LCID locale = GetSystemDefaultLCID() );
|
||
|
|
|
||
|
|
virtual ~CTextIFilter();
|
||
|
|
|
||
|
|
//
|
||
|
|
// From IFilter
|
||
|
|
//
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE Init( ULONG grfFlags,
|
||
|
|
ULONG cAttributes,
|
||
|
|
FULLPROPSPEC const * aAttributes,
|
||
|
|
ULONG * pFlags );
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE GetChunk( STAT_CHUNK * pStat );
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE GetText( ULONG * pcwcBuffer,
|
||
|
|
WCHAR * awcBuffer );
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE GetValue( PROPVARIANT ** ppPropValue );
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE BindRegion( FILTERREGION origPos,
|
||
|
|
REFIID riid,
|
||
|
|
void ** ppunk );
|
||
|
|
|
||
|
|
//
|
||
|
|
// From IPersistFile
|
||
|
|
//
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE GetClassID(CLSID * pClassID);
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE IsDirty();
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE Load(LPCWSTR pszFileName, DWORD dwMode);
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE Save(LPCWSTR pszFileName, BOOL fRemember);
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE SaveCompleted(LPCWSTR pszFileName);
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE GetCurFile(LPWSTR * ppszFileName);
|
||
|
|
|
||
|
|
//
|
||
|
|
// From IPersistStream
|
||
|
|
//
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE Load( IStream * pStm );
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE Save( IStream * pStm, BOOL fClearDirty );
|
||
|
|
|
||
|
|
SCODE STDMETHODCALLTYPE GetSizeMax( ULARGE_INTEGER * pcbSize );
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
BOOL IsFileBased() { return (0 != _pwszFileName); }
|
||
|
|
BOOL IsStreamBased() { return (0 != _pStream); }
|
||
|
|
|
||
|
|
inline BOOL IsLastCharDBCSLeadByte( BYTE *pbIn, ULONG cChIn );
|
||
|
|
|
||
|
|
BOOL IsDBCSCodePage( ULONG ulCodePage );
|
||
|
|
|
||
|
|
ULONG _idChunk; // Current chunk id
|
||
|
|
CMmStream _mmStream; // File-based stream
|
||
|
|
CMmIStream _mmIStream; // IStream-based stream
|
||
|
|
CMmStreamConsecBuf _mmStreamBuf; // Stream buffer (common)
|
||
|
|
ULONG _bytesReadFromChunk; // Bytes read from current chunk
|
||
|
|
LPWSTR _pwszFileName; // File being filtered
|
||
|
|
IStream * _pStream; // ...or, IStream being filtered
|
||
|
|
ULONG _ulCodePage; // Code page (for UniCode translation)
|
||
|
|
LCID _locale; // Locale
|
||
|
|
BOOL _fUniCode; // TRUE if file is UniCode text
|
||
|
|
BOOL _fBigEndian; // TRUE if UniCode stored Big-endian
|
||
|
|
BOOL _fContents; // TRUE if content property requested
|
||
|
|
BOOL _fNSS; // TRUE if NTFS Structured Storage (not supported)
|
||
|
|
BOOL _fDBCSCodePage; // Is _ulCodePage a DBCS code page ?
|
||
|
|
BOOL _fDBCSSplitChar; // True, if a DBCS sequences is split across
|
||
|
|
// two mappings, False otherwise
|
||
|
|
BYTE _abDBCSInput[2]; // Buffer for two byte DBCS sequence
|
||
|
|
};
|
||
|
|
|