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