Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include "collect.hxx"
      21             : 
      22             : #include <string.h>
      23             : 
      24             : #define MAXCOLLECTIONSIZE       16384
      25             : #define MAXDELTA                1024
      26             : 
      27           0 : ScDataObject::~ScDataObject()
      28             : {
      29           0 : }
      30             : 
      31             : // Collection
      32             : 
      33           0 : static void lcl_DeleteScDataObjects( ScDataObject** p, sal_uInt16 nCount )
      34             : {
      35           0 :     if ( p )
      36             :     {
      37           0 :         for (sal_uInt16 i = 0; i < nCount; i++) delete p[i];
      38           0 :         delete[] p;
      39             :     }
      40           0 : }
      41             : 
      42           0 : ScCollection::ScCollection(sal_uInt16 nLim, sal_uInt16 nDel) :
      43             :     nCount ( 0 ),
      44             :     nLimit ( nLim ),
      45             :     nDelta ( nDel ),
      46           0 :     pItems ( NULL )
      47             : {
      48           0 :     if (nDelta > MAXDELTA)
      49           0 :         nDelta = MAXDELTA;
      50           0 :     else if (nDelta == 0)
      51           0 :         nDelta = 1;
      52           0 :     if (nLimit > MAXCOLLECTIONSIZE)
      53           0 :         nLimit = MAXCOLLECTIONSIZE;
      54           0 :     else if (nLimit < nDelta)
      55           0 :         nLimit = nDelta;
      56           0 :     pItems = new ScDataObject*[nLimit];
      57           0 : }
      58             : 
      59           0 : ScCollection::ScCollection(const ScCollection& rCollection)
      60             :     :   ScDataObject(),
      61             :         nCount ( 0 ),
      62             :         nLimit ( 0 ),
      63             :         nDelta ( 0 ),
      64           0 :         pItems ( NULL )
      65             : {
      66           0 :     *this = rCollection;
      67           0 : }
      68             : 
      69           0 : ScCollection::~ScCollection()
      70             : {
      71           0 :     lcl_DeleteScDataObjects( pItems, nCount );
      72           0 : }
      73             : 
      74           0 : bool ScCollection::AtInsert(sal_uInt16 nIndex, ScDataObject* pScDataObject)
      75             : {
      76           0 :     if ((nCount < MAXCOLLECTIONSIZE) && (nIndex <= nCount) && pItems)
      77             :     {
      78           0 :         if (nCount == nLimit)
      79             :         {
      80           0 :             ScDataObject** pNewItems = new ScDataObject*[nLimit + nDelta];
      81           0 :             if (!pNewItems)
      82           0 :                 return false;
      83           0 :             nLimit = sal::static_int_cast<sal_uInt16>( nLimit + nDelta );
      84           0 :             memcpy(pNewItems, pItems, nCount * sizeof(ScDataObject*));
      85           0 :             delete[] pItems;
      86           0 :             pItems = pNewItems;
      87             :         }
      88           0 :         if (nCount > nIndex)
      89           0 :             memmove(&pItems[nIndex + 1], &pItems[nIndex], (nCount - nIndex) * sizeof(ScDataObject*));
      90           0 :         pItems[nIndex] = pScDataObject;
      91           0 :         nCount++;
      92           0 :         return true;
      93             :     }
      94           0 :     return false;
      95             : }
      96             : 
      97           0 : bool ScCollection::Insert(ScDataObject* pScDataObject)
      98             : {
      99           0 :     return AtInsert(nCount, pScDataObject);
     100             : }
     101             : 
     102           0 : ScDataObject* ScCollection::At(sal_uInt16 nIndex) const
     103             : {
     104           0 :     if (nIndex < nCount)
     105           0 :         return pItems[nIndex];
     106             :     else
     107           0 :         return NULL;
     108             : }
     109             : 
     110           0 : ScCollection& ScCollection::operator=( const ScCollection& r )
     111             : {
     112             :     // Check for self-assignment
     113           0 :     if (this == &r)
     114           0 :        return *this;
     115             : 
     116           0 :     lcl_DeleteScDataObjects( pItems, nCount );
     117             : 
     118           0 :     nCount = r.nCount;
     119           0 :     nLimit = r.nLimit;
     120           0 :     nDelta = r.nDelta;
     121           0 :     pItems = new ScDataObject*[nLimit];
     122           0 :     for ( sal_uInt16 i=0; i<nCount; i++ )
     123           0 :         pItems[i] = r.pItems[i]->Clone();
     124             : 
     125           0 :     return *this;
     126             : }
     127             : 
     128           0 : ScDataObject*   ScCollection::Clone() const
     129             : {
     130           0 :     return new ScCollection(*this);
     131             : }
     132             : 
     133             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */