/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



#ifndef _IMPCONT_HXX
#define _IMPCONT_HXX

#include <tools/tools.h>
#include <tools/contnr.hxx>

typedef void* PVOID;

// ----------
// - CBlock -
// ----------

class CBlock
{
private:
    CBlock*         pPrev;              // Vorheriger Block
    CBlock*         pNext;              // Naechster Block
    sal_uInt16          nSize;              // Groesse des Blocks
    sal_uInt16          nCount;             // Anzahl Pointer
    void**          pNodes;             // Pointer auf die Daten

#if defined DBG_UTIL
    static char const * DbgCheckCBlock(void const *);
#endif

public:
                    // Fuer List-Container
                    CBlock( sal_uInt16 nSize, CBlock* pPrev, CBlock* pNext );
                    // Fuer Array-Container
                    CBlock( sal_uInt16 nSize, CBlock* pPrev );
                    // Copy-Ctor
                    CBlock( const CBlock& r, CBlock* pPrev );
                    ~CBlock();

    void            Insert( void* p, sal_uInt16 nIndex, sal_uInt16 nReSize );
    CBlock*         Split( void* p, sal_uInt16 nIndex, sal_uInt16 nReSize );
    void*           Remove( sal_uInt16 nIndex, sal_uInt16 nReSize );
    void*           Replace( void* pNew, sal_uInt16 nIndex );

    void**          GetNodes() const { return pNodes; }
    void**          GetObjectPtr( sal_uInt16 nIndex );
    void*           GetObject( sal_uInt16 nIndex ) const;

    void            SetSize( sal_uInt16 nNewSize );

    sal_uInt16          GetSize() const               { return nCount; }
    sal_uInt16          Count() const                 { return nCount; }
    void            SetPrevBlock( CBlock* p )     { pPrev = p;     }
    void            SetNextBlock( CBlock* p )     { pNext = p;     }
    CBlock*         GetPrevBlock() const          { return pPrev;  }
    CBlock*         GetNextBlock() const          { return pNext;  }
    void            Reset()                       { nCount = 0;    }

private:
                    CBlock( const CBlock& r );

    friend class Container;
};

/*************************************************************************
|*
|*    CBlock::GetObject()
|*
|*    Beschreibung      Gibt einen Pointer aus dem Block zurueck
|*    Ersterstellung    TH 17.09.91
|*    Letzte Aenderung  TH 17.09.91
|*
*************************************************************************/

inline void* CBlock::GetObject( sal_uInt16 nIndex ) const
{
    return pNodes[nIndex];
}

/*************************************************************************
|*
|*    Container::ImpGetObject()
|*
|*    Beschreibung      Wir gehen davon aus, das Pointer in der Regel
|*                      sich im ersten Block befindet und schalten
|*                      deshalb eine Inline-Methode davor
|*    Ersterstellung    TH 02.07.93
|*    Letzte Aenderung  TH 02.07.93
|*
*************************************************************************/

inline void* Container::ImpGetObject( sal_uIntPtr nIndex ) const
{
    if ( pFirstBlock && (nIndex < pFirstBlock->Count()) )
        // Item innerhalb des gefundenen Blocks zurueckgeben
        return pFirstBlock->GetObject( (sal_uInt16)nIndex );
    else
        return GetObject( nIndex );
}

/*************************************************************************
|*
|*    Container::ImpGetOnlyNodes()
|*
|*    Beschreibung      Wenn es nur einen Block gibt, wird davon
|*                      das Daten-Array zurueckgegeben
|*    Ersterstellung    TH 24.01.96
|*    Letzte Aenderung  TH 24.01.96
|*
*************************************************************************/

// #i70651#: Prevent warnings on Mac OS X
#ifdef MACOSX
#pragma GCC system_header
#endif

inline void** Container::ImpGetOnlyNodes() const
{
    if ( (pFirstBlock == pLastBlock) && pFirstBlock )
        return pFirstBlock->GetNodes();
    else
        return NULL;
}

#endif // _IMPCONT_HXX