132 lines
2.9 KiB
C++
132 lines
2.9 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1997.
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//
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// File: docname.hxx
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//
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// Contents: Storage Client for document
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//
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// History: 11-22-96 srikants Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <ciintf.h>
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#include <cifrmcom.hxx>
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//+---------------------------------------------------------------------------
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//
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// Class: CCiCDocName
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//
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// Purpose: Storage system's notion of a document name. It is a NULL terminated
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// wide char full path to the file.
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//
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// History: 11-22-96 srikants Created
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//
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// Notes: This class is NOT multi-thread safe. The user must make sure
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// that only one thread is using it at a time.
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//
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//----------------------------------------------------------------------------
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class CCiCDocName : public ICiCDocName
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{
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public:
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//
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// Constructor and Destructor
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//
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CCiCDocName( WCHAR const * pwszPath = 0 );
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CCiCDocName( WCHAR const * pwszPath, ULONG cwc );
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//
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// IUnknown methods.
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//
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STDMETHOD(QueryInterface) (THIS_ REFIID riid,LPVOID *ppiuk );
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STDMETHOD_(ULONG, AddRef) (THIS);
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STDMETHOD_(ULONG, Release) (THIS);
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//
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// ICiCDocName methods.
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//
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STDMETHOD(Init) ( const BYTE * pbData, ULONG cbData );
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STDMETHOD(Set) ( const ICiCDocName * pICiCDocName );
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STDMETHOD(Clear) (void);
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STDMETHOD(IsValid) (void);
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STDMETHOD(Duplicate) ( ICiCDocName ** ppICiCDocName );
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STDMETHOD(Get) ( BYTE * pbName, ULONG * pcbName ) ;
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STDMETHOD(GetNameBuffer) ( BYTE const * * ppbName, ULONG * pcbName );
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STDMETHOD(GetBufSizeNeeded) ( ULONG * pcbName );
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//
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// Methods specific to CCiCDocName.
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//
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WCHAR const * GetPath() const
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{
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return _pwszPath;
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}
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void SetPath( WCHAR const * pwszPath, ULONG cwc );
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static BOOL IsEvenNumber( ULONG n )
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{
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return 0 == (n & 0x1);
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}
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protected:
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virtual ~CCiCDocName()
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{
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Win4Assert( 0 == _refCount );
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FreeResources();
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}
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private:
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enum { CWC_DELTA = 32 };
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void FreeResources()
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{
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if ( 0 != _pwszPath && _wszBuffer != _pwszPath )
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{
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delete [] _pwszPath;
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_pwszPath = 0;
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_cwcMax = _cwcPath = 0;
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}
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}
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ULONG ComputeBufSize() const
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{
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return (_cwcPath+1) * sizeof(WCHAR);
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}
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WCHAR * _pwszPath; // Actual path
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LONG _refCount; // Refcounting
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BOOL _fIsInit; // Is it initialized ??
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ULONG _cwcMax; // Maximum number of chars in _pwszPath
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ULONG _cwcPath; // Number of characters in the path
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WCHAR _wszBuffer[MAX_PATH]; // used for default path name
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};
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