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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _HASH_HXX
#define _HASH_HXX
#include <tools/ref.hxx>
#include <tools/string.hxx>
#include <vector>
class SvHashTable
{
sal_uInt32 nMax; // size of hash-tabel
sal_uInt32 nFill; // elements in hash-tabel
sal_uInt32 lAsk; // number of requests
sal_uInt32 lTry; // number of tries
protected:
sal_Bool Test_Insert( const OString&, sal_Bool bInsert, sal_uInt32 * pInsertPos );
// compare element with entry
virtual bool equals( const OString& , sal_uInt32 ) const = 0;
// get hash value from subclass
virtual sal_uInt32 HashFunc( const OString& ) const = 0;
public:
SvHashTable( sal_uInt32 nMaxEntries );
virtual ~SvHashTable();
sal_uInt32 GetMax() const { return nMax; }
virtual sal_Bool IsEntry( sal_uInt32 ) const = 0;
};
class SvStringHashTable;
class SvStringHashEntry : public SvRefBase
{
friend class SvStringHashTable;
OString aName;
sal_uInt32 nHashId;
sal_uLong nValue;
sal_Bool bHasId;
public:
SvStringHashEntry() : bHasId( sal_False ) {;}
SvStringHashEntry( const OString& rName, sal_uInt32 nIdx )
: aName( rName )
, nHashId( nIdx )
, nValue( 0 )
, bHasId( sal_True ) {}
~SvStringHashEntry();
const OString& GetName() const { return aName; }
sal_Bool HasId() const { return bHasId; }
sal_uInt32 GetId() const { return nHashId; }
void SetValue( sal_uLong n ) { nValue = n; }
sal_uLong GetValue() const { return nValue; }
sal_Bool operator == ( const SvStringHashEntry & rRef )
{ return nHashId == rRef.nHashId; }
sal_Bool operator != ( const SvStringHashEntry & rRef )
{ return ! operator == ( rRef ); }
SvStringHashEntry & operator = ( const SvStringHashEntry & rRef )
{ SvRefBase::operator=( rRef );
aName = rRef.aName;
nHashId = rRef.nHashId;
nValue = rRef.nValue;
bHasId = rRef.bHasId;
return *this;
}
};
SV_DECL_IMPL_REF(SvStringHashEntry)
typedef ::std::vector< SvStringHashEntry* > SvStringHashList;
class SvStringHashTable : public SvHashTable
{
SvStringHashEntry* pEntries;
protected:
virtual sal_uInt32 HashFunc( const OString& rElement ) const;
virtual bool equals( const OString &rElement, sal_uInt32 nIndex ) const;
public:
SvStringHashTable( sal_uInt32 nMaxEntries ); // max size of hash-tabel
virtual ~SvStringHashTable();
OString GetNearString( const OString& rName ) const;
virtual sal_Bool IsEntry( sal_uInt32 nIndex ) const;
sal_Bool Insert( const OString& rStr, sal_uInt32 * pHash ); // insert string
sal_Bool Test( const OString& rStr, sal_uInt32 * pHash ) const; // test of insert string
SvStringHashEntry * Get ( sal_uInt32 nIndex ) const; // return pointer to string
SvStringHashEntry & operator []( sal_uInt32 nPos ) const
{ return pEntries[ nPos ]; }
void FillHashList( SvStringHashList * rList ) const;
};
#endif // _RSCHASH_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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