Files
libreoffice/sw/source/core/txtnode/ndhints.cxx
2011-11-27 13:25:10 -06:00

430 lines
14 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "txatbase.hxx"
#include "ndhints.hxx"
#include <txtatr.hxx>
#ifdef DBG_UTIL
#include <pam.hxx>
#endif
_SV_IMPL_SORTAR_ALG( SwpHtStart, SwTxtAttr* )
_SV_IMPL_SORTAR_ALG( SwpHtEnd, SwTxtAttr* )
inline void DumpHints(const SwpHtStart &, const SwpHtEnd &) { }
/*************************************************************************
* inline IsEqual()
*************************************************************************/
inline sal_Bool IsEqual( const SwTxtAttr &rHt1, const SwTxtAttr &rHt2 )
{
return (long)(&rHt1) == (long)(&rHt2);
}
/*************************************************************************
* IsLessStart()
*************************************************************************/
// SV_IMPL_OP_PTRARR_SORT( SwpHtStart, SwTxtAttr* )
// kein SV_IMPL_PTRARR_SORT( name,ArrElement )
// unser SEEK_PTR_TO_OBJECT_NOTL( name,ArrElement )
// Sortierreihenfolge: Start, Ende (umgekehrt!), Which-Wert (umgekehrt!),
// als letztes die Adresse selbst
static sal_Bool lcl_IsLessStart( const SwTxtAttr &rHt1, const SwTxtAttr &rHt2 )
{
if ( *rHt1.GetStart() == *rHt2.GetStart() )
{
const xub_StrLen nHt1 = *rHt1.GetAnyEnd();
const xub_StrLen nHt2 = *rHt2.GetAnyEnd();
if ( nHt1 == nHt2 )
{
const sal_uInt16 nWhich1 = rHt1.Which();
const sal_uInt16 nWhich2 = rHt2.Which();
if ( nWhich1 == nWhich2 )
{
if ( RES_TXTATR_CHARFMT == nWhich1 )
{
const sal_uInt16 nS1 = static_cast<const SwTxtCharFmt&>(rHt1).GetSortNumber();
const sal_uInt16 nS2 = static_cast<const SwTxtCharFmt&>(rHt2).GetSortNumber();
OSL_ENSURE( nS1 != nS2, "AUTOSTYLES: lcl_IsLessStart trouble" );
if ( nS1 != nS2 ) // robust
return nS1 < nS2;
}
return (long)&rHt1 < (long)&rHt2;
}
// order is important! for requirements see hintids.hxx
return ( nWhich1 > nWhich2 );
}
return ( nHt1 > nHt2 );
}
return ( *rHt1.GetStart() < *rHt2.GetStart() );
}
/*************************************************************************
* inline IsLessEnd()
*************************************************************************/
// Zuerst nach Ende danach nach Ptr
static sal_Bool lcl_IsLessEnd( const SwTxtAttr &rHt1, const SwTxtAttr &rHt2 )
{
const xub_StrLen nHt1 = *rHt1.GetAnyEnd();
const xub_StrLen nHt2 = *rHt2.GetAnyEnd();
if ( nHt1 == nHt2 )
{
if ( *rHt1.GetStart() == *rHt2.GetStart() )
{
const sal_uInt16 nWhich1 = rHt1.Which();
const sal_uInt16 nWhich2 = rHt2.Which();
if ( nWhich1 == nWhich2 )
{
if ( RES_TXTATR_CHARFMT == nWhich1 )
{
const sal_uInt16 nS1 = static_cast<const SwTxtCharFmt&>(rHt1).GetSortNumber();
const sal_uInt16 nS2 = static_cast<const SwTxtCharFmt&>(rHt2).GetSortNumber();
OSL_ENSURE( nS1 != nS2, "AUTOSTYLES: lcl_IsLessEnd trouble" );
if ( nS1 != nS2 ) // robust
return nS1 > nS2;
}
return (long)&rHt1 > (long)&rHt2;
}
// order is important! for requirements see hintids.hxx
return ( nWhich1 < nWhich2 );
}
else
return ( *rHt1.GetStart() > *rHt2.GetStart() );
}
return ( nHt1 < nHt2 );
}
/*************************************************************************
* SwpHtStart::Seek_Entry()
*************************************************************************/
sal_Bool SwpHtStart::Seek_Entry( const SwTxtAttr *pElement, sal_uInt16 *pPos ) const
{
sal_uInt16 nOben = Count(), nMitte, nUnten = 0;
if( nOben > 0 )
{
nOben--;
while( nUnten <= nOben )
{
nMitte = nUnten + ( nOben - nUnten ) / 2;
const SwTxtAttr *pMitte = (*this)[nMitte];
if( IsEqual( *pMitte, *pElement ) )
{
*pPos = nMitte;
return sal_True;
}
else
if( lcl_IsLessStart( *pMitte, *pElement ) )
nUnten = nMitte + 1;
else
if( nMitte == 0 )
{
*pPos = nUnten;
return sal_False;
}
else
nOben = nMitte - 1;
}
}
*pPos = nUnten;
return sal_False;
}
/*************************************************************************
* SwpHtEnd::Seek_Entry()
*************************************************************************/
sal_Bool SwpHtEnd::Seek_Entry( const SwTxtAttr *pElement, sal_uInt16 *pPos ) const
{
sal_uInt16 nOben = Count(), nMitte, nUnten = 0;
if( nOben > 0 )
{
nOben--;
while( nUnten <= nOben )
{
nMitte = nUnten + ( nOben - nUnten ) / 2;
const SwTxtAttr *pMitte = (*this)[nMitte];
if( IsEqual( *pMitte, *pElement ) )
{
*pPos = nMitte;
return sal_True;
}
else
if( lcl_IsLessEnd( *pMitte, *pElement ) )
nUnten = nMitte + 1;
else
if( nMitte == 0 )
{
*pPos = nUnten;
return sal_False;
}
else
nOben = nMitte - 1;
}
}
*pPos = nUnten;
return sal_False;
}
/*************************************************************************
* class SwpHintsArr
*************************************************************************/
void SwpHintsArray::Insert( const SwTxtAttr *pHt )
{
Resort();
#if OSL_DEBUG_LEVEL > 0
sal_uInt16 nPos;
OSL_ENSURE(!m_HintStarts.Seek_Entry( pHt, &nPos ),
"Insert: hint already in HtStart");
OSL_ENSURE(!m_HintEnds.Seek_Entry( pHt, &nPos ),
"Insert: hint already in HtEnd");
#endif
m_HintStarts.Insert( pHt );
m_HintEnds.Insert( pHt );
}
void SwpHintsArray::DeleteAtPos( const sal_uInt16 nPos )
{
// optimization: nPos is the position in the Starts array
const SwTxtAttr *pHt = m_HintStarts[ nPos ];
m_HintStarts.Remove( nPos );
Resort();
sal_uInt16 nEndPos;
m_HintEnds.Seek_Entry( pHt, &nEndPos );
m_HintEnds.Remove( nEndPos );
}
#ifdef DBG_UTIL
/*************************************************************************
* SwpHintsArray::Check()
*************************************************************************/
#define CHECK_ERR(cond, text) \
if(!(cond)) \
{ \
OSL_ENSURE(!this, text); \
DumpHints(m_HintStarts, m_HintEnds); \
return !(const_cast<SwpHintsArray*>(this))->Resort(); \
}
bool SwpHintsArray::Check() const
{
// 1) gleiche Anzahl in beiden Arrays
CHECK_ERR( m_HintStarts.Count() == m_HintEnds.Count(),
"HintsCheck: wrong sizes" );
xub_StrLen nLastStart = 0;
xub_StrLen nLastEnd = 0;
const SwTxtAttr *pLastStart = 0;
const SwTxtAttr *pLastEnd = 0;
for( sal_uInt16 i = 0; i < Count(); ++i )
{
// --- Start-Kontrolle ---
// 2a) gueltiger Pointer? vgl. DELETEFF
const SwTxtAttr *pHt = m_HintStarts[i];
CHECK_ERR( 0xFF != *(unsigned char*)pHt, "HintsCheck: start ptr was deleted" );
// 3a) Stimmt die Start-Sortierung?
xub_StrLen nIdx = *pHt->GetStart();
CHECK_ERR( nIdx >= nLastStart, "HintsCheck: starts are unsorted" );
// 4a) IsLessStart-Konsistenz
if( pLastStart )
CHECK_ERR( lcl_IsLessStart( *pLastStart, *pHt ), "HintsCheck: IsLastStart" );
nLastStart = nIdx;
pLastStart = pHt;
// --- End-Kontrolle ---
// 2b) gueltiger Pointer? vgl. DELETEFF
const SwTxtAttr *pHtEnd = m_HintEnds[i];
CHECK_ERR( 0xFF != *(unsigned char*)pHtEnd, "HintsCheck: end ptr was deleted" );
// 3b) Stimmt die End-Sortierung?
nIdx = *pHtEnd->GetAnyEnd();
CHECK_ERR( nIdx >= nLastEnd, "HintsCheck: ends are unsorted" );
nLastEnd = nIdx;
// 4b) IsLessEnd-Konsistenz
if( pLastEnd )
CHECK_ERR( lcl_IsLessEnd( *pLastEnd, *pHtEnd ), "HintsCheck: IsLastEnd" );
nLastEnd = nIdx;
pLastEnd = pHtEnd;
// --- Ueberkreuzungen ---
// 5) gleiche Pointer in beiden Arrays
if( !m_HintStarts.Seek_Entry( pHt, &nIdx ) )
nIdx = STRING_LEN;
CHECK_ERR( STRING_LEN != nIdx, "HintsCheck: no GetStartOf" );
// 6) gleiche Pointer in beiden Arrays
if( !m_HintEnds.Seek_Entry( pHt, &nIdx ) )
nIdx = STRING_LEN;
CHECK_ERR( STRING_LEN != nIdx, "HintsCheck: no GetEndOf" );
// 7a) character attributes in array?
sal_uInt16 nWhich = pHt->Which();
CHECK_ERR( !isCHRATR(nWhich),
"HintsCheck: Character attribute in start array" );
// 7b) character attributes in array?
nWhich = pHtEnd->Which();
CHECK_ERR( !isCHRATR(nWhich),
"HintsCheck: Character attribute in end array" );
// 8) style portion check
const SwTxtAttr* pHtThis = m_HintStarts[i];
const SwTxtAttr* pHtLast = i > 0 ? m_HintStarts[i-1] : 0;
CHECK_ERR( 0 == i ||
( RES_TXTATR_CHARFMT != pHtLast->Which() && RES_TXTATR_AUTOFMT != pHtLast->Which() ) ||
( RES_TXTATR_CHARFMT != pHtThis->Which() && RES_TXTATR_AUTOFMT != pHtThis->Which() ) ||
( *pHtThis->GetStart() >= *pHtLast->GetEnd() ) ||
( ( ( (*pHtThis->GetStart() == *pHtLast->GetStart())
&& (*pHtThis->GetEnd() == *pHtLast->GetEnd())
) // same range
|| (*pHtThis->GetStart() == *pHtThis->GetEnd())
)
&& ( (pHtThis->Which() != RES_TXTATR_AUTOFMT)
|| (pHtLast->Which() != RES_TXTATR_AUTOFMT)
) // never two AUTOFMT on same range
),
"HintsCheck: Portion inconsistency. "
"This can be temporarily ok during undo operations" );
// 9) nesting portion check
if (pHtThis->IsNesting())
{
for ( sal_uInt16 j = 0; j < Count(); ++j )
{
SwTxtAttr const * const pOther( m_HintStarts[j] );
if ( pOther->IsNesting() && (i != j) )
{
SwComparePosition cmp = ComparePosition(
*pHtThis->GetStart(), *pHtThis->GetEnd(),
*pOther->GetStart(), *pOther->GetEnd());
CHECK_ERR( (POS_OVERLAP_BEFORE != cmp) &&
(POS_OVERLAP_BEHIND != cmp),
"HintsCheck: overlapping nesting hints!!!" );
}
}
}
// 10) dummy char check (unfortunately cannot check SwTxtNode::m_Text)
if (pHtThis->HasDummyChar())
{
for ( sal_uInt16 j = 0; j < i; ++j )
{
SwTxtAttr const * const pOther( m_HintStarts[j] );
if (pOther->HasDummyChar())
{
CHECK_ERR( (*pOther->GetStart() != *pHtThis->GetStart()),
"HintsCheck: multiple hints claim same CH_TXTATR!");
}
}
}
}
return true;
}
#endif /* DBG_UTIL */
/*************************************************************************
* SwpHintsArray::Resort()
*************************************************************************/
// Resort() wird vor jedem Insert und Delete gerufen.
// Wenn Textmasse geloescht wird, so werden die Indizes in
// ndtxt.cxx angepasst. Leider erfolgt noch keine Neusortierung
// auf gleichen Positionen.
bool SwpHintsArray::Resort()
{
bool bResort = false;
const SwTxtAttr *pLast = 0;
sal_uInt16 i;
for ( i = 0; i < m_HintStarts.Count(); ++i )
{
const SwTxtAttr *pHt = m_HintStarts[i];
if( pLast && !lcl_IsLessStart( *pLast, *pHt ) )
{
m_HintStarts.Remove( i );
m_HintStarts.Insert( pHt );
pHt = m_HintStarts[i];
if ( pHt != pLast )
--i;
bResort = true;
}
pLast = pHt;
}
pLast = 0;
for ( i = 0; i < m_HintEnds.Count(); ++i )
{
const SwTxtAttr *pHt = m_HintEnds[i];
if( pLast && !lcl_IsLessEnd( *pLast, *pHt ) )
{
m_HintEnds.Remove( i );
m_HintEnds.Insert( pHt );
pHt = m_HintEnds[i]; // normalerweise == pLast
// Wenn die Unordnung etwas groesser ist (24200),
// muessen wir Position i erneut vergleichen.
if ( pLast != pHt )
--i;
bResort = true;
}
pLast = pHt;
}
return bResort;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */