/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
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* 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 .
*/
#ifndef INCLUDED_SW_INC_NDINDEX_HXX
#define INCLUDED_SW_INC_NDINDEX_HXX
#include <iostream>
#include "node.hxx"
#include "ring.hxx"
#include "ndarr.hxx"
#include "nodeoffset.hxx"
/// Marks a node in the document model.
class SAL_WARN_UNUSED SW_DLLPUBLIC SwNodeIndex final :
public sw::Ring<SwNodeIndex>
{
SwNode * m_pNode;
void RegisterIndex()
{
if (!m_pNode->m_vIndices)
{
#if defined (__GNUC__) && (__GNUC__ == 12 || __GNUC__ == 13)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored
"-Wdangling-pointer"
#endif
m_pNode->m_vIndices =
this ;
#if defined (__GNUC__) && (__GNUC__ == 12 || __GNUC__ == 13)
#pragma GCC diagnostic pop
#endif
}
MoveTo(m_pNode->m_vIndices);
}
void DeRegisterIndex()
{
if (m_pNode->m_vIndices ==
this )
m_pNode->m_vIndices = GetNextInRing();
MoveTo(nullptr);
if (m_pNode->m_vIndices ==
this )
m_pNode->m_vIndices = nullptr;
}
SwNodeIndex(SwNode* pNode) : m_pNode(pNode) { RegisterIndex(); }
public :
SwNodeIndex(
const SwNodes& rNds, sal_Int32 nIdx ) : SwNodeIndex(rNds, SwNodeOffset(n
Idx)) {}
explicit SwNodeIndex( const SwNodes& rNds, SwNodeOffset nIdx = SwNodeOffset(0) )
: SwNodeIndex( rNds[ nIdx ] ) {}
SwNodeIndex( const SwNodeIndex& rIdx, sal_Int32 nDiff ) : SwNodeIndex(rIdx, SwNodeOffset(nDiff)) {}
SwNodeIndex( const SwNodeIndex& rIdx, SwNodeOffset nDiff = SwNodeOffset(0) )
: SwNodeIndex( nDiff ? rIdx.GetNodes()[ rIdx.GetIndex() + nDiff ] : rIdx.m_pNode ) {}
SwNodeIndex( const SwNode& rNd, sal_Int32 nDiff ) : SwNodeIndex(rNd, SwNodeOffset(nDiff)) {}
explicit SwNodeIndex( const SwNode& rNd )
: SwNodeIndex( const_cast <SwNode*>(&rNd) ) {}
explicit SwNodeIndex( const SwNode& rNd, SwNodeOffset nDiff )
: SwNodeIndex( nDiff ? *rNd.GetNodes()[ rNd.GetIndex() + nDiff ] : rNd ) {}
virtual ~SwNodeIndex() override { DeRegisterIndex(); }
SwNodeIndex& operator ++() { return operator +=(SwNodeOffset(1)); }
SwNodeIndex& operator--() { return operator-=(SwNodeOffset(1)); }
SwNodeIndex& operator +=( SwNodeOffset nOffset ) { return operator =(GetIndex() + nOffset); }
SwNodeIndex& operator-=( SwNodeOffset nOffset ) { return operator =(GetIndex() - nOffset); }
bool operator <( const SwNodeIndex& rIndex ) const { return operator <(rIndex.GetNode()); }
bool operator <=( const SwNodeIndex& rIndex ) const { return operator <=(rIndex.GetNode()); }
bool operator >( const SwNodeIndex& rIndex ) const { return operator >(rIndex.GetNode()); }
bool operator >=( const SwNodeIndex& rIndex ) const { return operator >=(rIndex.GetNode()); }
bool operator ==( const SwNodeIndex& rIndex ) const { return operator ==(rIndex.GetNode()); }
bool operator !=( const SwNodeIndex& rIndex ) const { return operator !=(rIndex.GetNode()); }
bool operator <( SwNodeOffset nOther ) const { return GetIndex() < nOther; }
bool operator <=( SwNodeOffset nOther ) const { return GetIndex() <= nOther; }
bool operator >( SwNodeOffset nOther ) const { return GetIndex() > nOther; }
bool operator >=( SwNodeOffset nOther ) const { return GetIndex() >= nOther; }
bool operator ==( SwNodeOffset nOther ) const { return GetIndex() == nOther; }
bool operator !=( SwNodeOffset nOther ) const { return GetIndex() != nOther; }
bool operator <( const SwNode& rNd ) const { assert(&GetNodes() == &rNd.GetNodes()); return operator <(rNd.GetIndex()); }
bool operator <=( const SwNode& rNd ) const { return operator ==(rNd) || operator <(rNd); }
bool operator >( const SwNode& rNd ) const { assert(&GetNodes() == &rNd.GetNodes()); return operator >(rNd.GetIndex()); }
bool operator >=( const SwNode& rNd ) const { return operator ==(rNd) || operator >(rNd); }
bool operator ==( const SwNode& rNd ) const { return m_pNode == &rNd; }
bool operator !=( const SwNode& rNd ) const { return m_pNode != &rNd; }
inline SwNodeIndex& operator =( SwNodeOffset );
SwNodeIndex& operator =( const SwNodeIndex& rIdx ) { return operator =(*rIdx.m_pNode); }
inline SwNodeIndex& operator =( const SwNode& );
// Return value of index as SwNodeOffset.
SwNodeOffset GetIndex() const { return m_pNode->GetIndex(); }
// Enables assignments without creation of a temporary object.
SwNodeIndex& Assign( SwNodes const & rNds, SwNodeOffset nIdx ) { return operator =(*rNds[nIdx]); }
SwNodeIndex& Assign( const SwNode& rNd, sal_Int32 nOffset ) { return Assign(rNd, SwNodeOffset(nOffset)); }
inline SwNodeIndex& Assign( const SwNode& rNd, SwNodeOffset nOffset = SwNodeOffset(0) );
// Gets pointer on NodesArray.
const SwNodes& GetNodes() const { return m_pNode->GetNodes(); }
SwNodes& GetNodes() { return m_pNode->GetNodes(); }
SwNode& GetNode() const { return *m_pNode; }
};
inline std::ostream &operator <<(std::ostream& s, const SwNodeIndex& index)
{
return s << "SwNodeIndex (node " << sal_Int32(index.GetIndex()) << ")" ;
}
// SwRange
class SW_DLLPUBLIC SwNodeRange
{
public :
SwNodeIndex aStart;
SwNodeIndex aEnd;
SwNodeRange( const SwNodeIndex &rS, const SwNodeIndex &rE )
: aStart( rS ), aEnd( rE ) {}
SwNodeRange( const SwNode &rS, const SwNode &rE )
: aStart( rS ), aEnd( rE ) {}
SwNodeRange( const SwNodeRange &rRange ) = default ;
SwNodeRange( const SwNodes& rNds, SwNodeOffset nSttIdx, SwNodeOffset nEndIdx = SwNodeOffset(0) )
: aStart( rNds, nSttIdx ), aEnd( rNds, nEndIdx ) {}
SwNodeRange( const SwNodeIndex& rS, SwNodeOffset nSttDiff, const SwNodeIndex& rE, SwNodeOffset nEndDiff = SwNodeOffset(0) )
: aStart( rS, nSttDiff ), aEnd( rE, nEndDiff ) {}
SwNodeRange( const SwNode& rS, SwNodeOffset nSttDiff, const SwNode& rE, SwNodeOffset nEndDiff = SwNodeOffset(0) )
: aStart( rS, nSttDiff ), aEnd( rE, nEndDiff ) {}
};
// For inlines node.hxx is needed which in turn needs this one.
// Therefore all inlines accessing m_pNode are implemented here.
inline SwNodeIndex& SwNodeIndex::operator =( SwNodeOffset const nNew )
{
auto pNewNode = GetNodes()[ nNew ];
if (pNewNode != m_pNode)
{
DeRegisterIndex();
m_pNode = GetNodes()[ nNew ];
RegisterIndex();
}
return *this ;
}
SwNodeIndex& SwNodeIndex::operator =( const SwNode& rNd )
{
if (&rNd != m_pNode)
{
DeRegisterIndex();
m_pNode = const_cast <SwNode*>(&rNd);
RegisterIndex();
}
return *this ;
}
SwNodeIndex& SwNodeIndex::Assign( const SwNode& rNd, SwNodeOffset nOffset )
{
const SwNode* pNewNode;
if (nOffset)
pNewNode = rNd.GetNodes()[ rNd.GetIndex() + nOffset ];
else
pNewNode = &rNd;
return operator =(*pNewNode);
}
#endif
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