svl/source/items/itemiter.cxx

   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
  21 #include <svl/itemiter.hxx>
  22 #include <svl/itempool.hxx>
  23 #include <svl/itemset.hxx>
  24
  25 SfxItemIter::SfxItemIter( const SfxItemSet& rItemSet )
  26     : m_rSet( rItemSet )
  27 {
  28     if (!m_rSet.m_nCount)
  29     {
  30         m_nStart = 0;
  31         m_nEnd = 0;
  32     }
  33     else
  34     {
  35         SfxPoolItem const** ppFnd = m_rSet.m_pItems.get();
  36
  37         // Find the first Item that is set
  38         for (m_nStart = 0; !*(ppFnd + m_nStart ); ++m_nStart)
  39             ; // empty loop
  40         if (1 < m_rSet.Count())
  41             for (m_nEnd = m_rSet.TotalCount(); !*(ppFnd + --m_nEnd); )
  42                 ; // empty loop
  43         else
  44             m_nEnd = m_nStart;
  45     }
  46
  47     m_nCurrent = m_nStart;
  48 }
  49
  50 SfxItemIter::~SfxItemIter()
  51 {
  52 }
  53
  54 const SfxPoolItem* SfxItemIter::NextItem()
  55 {
  56     SfxPoolItem const** ppFnd = m_rSet.m_pItems.get();
  57
  58     if (m_nCurrent < m_nEnd)
  59     {
  60         do {
  61             m_nCurrent++;
  62         } while (m_nCurrent < m_nEnd && !*(ppFnd + m_nCurrent ));
  63         return *(ppFnd+m_nCurrent);
  64     }
  65     return nullptr;
  66 }
  67
  68 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */