office-gobmx/svl/source/items/itemiter.cxx
Noel Grandin 9ae3863f2a add ClearItem to the SfxItemSet iterators
to speed up operations when iterating over SfxItemSets

Change-Id: Ie40327ffaf7faa801ccc12d2b05c546a7fe49802
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/135079
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2022-05-28 20:50:40 +02:00

71 lines
2.2 KiB
C++

/* -*- 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 .
*/
#include <svl/itemiter.hxx>
#include <svl/itemset.hxx>
SfxItemIter::SfxItemIter(const SfxItemSet& rItemSet)
: m_rSet(rItemSet)
{
if (!m_rSet.m_nCount)
{
m_nStart = 0;
m_nEnd = 0;
}
else
{
SfxPoolItem const** ppFnd = m_rSet.m_ppItems;
// Find the first Item that is set
for (m_nStart = 0; !*(ppFnd + m_nStart); ++m_nStart)
; // empty loop
if (1 < m_rSet.Count())
for (m_nEnd = m_rSet.TotalCount(); !*(ppFnd + --m_nEnd);)
; // empty loop
else
m_nEnd = m_nStart;
}
m_nCurrent = m_nStart;
}
// Precondition : m_nCurrent < m_nEnd
const SfxPoolItem* SfxItemIter::ImplNextItem()
{
SfxPoolItem const** ppFnd = m_rSet.m_ppItems;
do
{
m_nCurrent++;
} while (m_nCurrent < m_nEnd && !*(ppFnd + m_nCurrent));
return *(ppFnd + m_nCurrent);
}
SfxItemState SfxItemIter::GetItemState(bool bSrchInParent, const SfxPoolItem** ppItem) const
{
sal_uInt16 nWhich = (*(m_rSet.m_ppItems + m_nCurrent))->Which();
return m_rSet.GetItemStateImpl(nWhich, bSrchInParent, ppItem, m_nCurrent);
}
void SfxItemIter::ClearItem()
{
sal_uInt16 nWhich = (*(m_rSet.m_ppItems + m_nCurrent))->Which();
const_cast<SfxItemSet&>(m_rSet).ClearSingleItemImpl(nWhich, m_nCurrent);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */