77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1994.
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//
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// File: InvCur.hxx
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//
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// Contents: 'Invalid' cursor. Cursor over the pidUnfiltered property
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// based on a given widmap.
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//
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// Classes: CInvalidCursor
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//
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// History: 09-Nov-94 KyleP Created.
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <keycur.hxx>
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class CWidTable;
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class CUnfilteredCursor : public CKeyCursor
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{
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public:
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CUnfilteredCursor( INDEXID iid, WORKID widMax, CWidTable const & widtab );
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static int CompareAgainstUnfilteredKey( CKey const & key );
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//
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// From CCursor
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//
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virtual ULONG WorkIdCount();
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virtual WORKID WorkId();
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virtual WORKID NextWorkId();
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virtual ULONG HitCount();
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//
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// From COccCursor
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//
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virtual OCCURRENCE Occurrence();
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virtual OCCURRENCE NextOccurrence();
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virtual ULONG OccurrenceCount();
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//
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// From CKeyCursor
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//
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virtual const CKeyBuf * GetKey();
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virtual const CKeyBuf * GetNextKey();
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OCCURRENCE MaxOccurrence();
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void RatioFinished ( ULONG& denom, ULONG& num );
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private:
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CWidTable const & _widtab;
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unsigned _iCurrentFakeWid; // Current fake wid
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OCCURRENCE _occ; // Invalid after NextOccurrence
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BOOL _fAtEnd; // TRUE when out of wids
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BOOL _fKeyMoved; // TRUE after GetNextKey called
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static CKeyBuf _TheUnfilteredKey; // The only key available through cursor
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};
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