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libreoffice/sw/source/core/doc/doccomp.cxx

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/*************************************************************************
*
* $RCSfile: doccomp.cxx,v $
*
2001-09-27 12:42:58 +00:00
* $Revision: 1.4 $
2000-09-18 23:08:29 +00:00
*
2001-09-27 12:42:58 +00:00
* last change: $Author: jp $ $Date: 2001-09-27 13:41:38 $
2000-09-18 23:08:29 +00:00
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifdef PRECOMPILED
#include "core_pch.hxx"
#endif
#pragma hdrstop
#ifndef _HINTIDS_HXX
#include <hintids.hxx>
#endif
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#ifndef _LIST_HXX
#include <tools/list.hxx>
#endif
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#ifndef _SV_FONTTYPE_HXX //autogen
#include <vcl/fonttype.hxx>
#endif
#ifndef _SVX_CRSDITEM_HXX //autogen
#include <svx/crsditem.hxx>
#endif
#ifndef _SVX_COLRITEM_HXX //autogen
#include <svx/colritem.hxx>
#endif
#ifndef _SVX_BOXITEM_HXX //autogen
#include <svx/boxitem.hxx>
#endif
#ifndef _SVX_UDLNITEM_HXX //autogen
#include <svx/udlnitem.hxx>
#endif
#ifndef _SFXDOCINF_HXX
#include <sfx2/docinf.hxx>
#endif
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#ifdef JP_DUMP
#include <stdio.h>
#ifndef _STREAM_HXX //autogen
#include <tools/stream.hxx>
#endif
#endif
#ifndef _DOC_HXX
#include <doc.hxx>
#endif
#ifndef _DOCARY_HXX
#include <docary.hxx>
#endif
#ifndef _PAM_HXX
#include <pam.hxx>
#endif
#ifndef _NDTXT_HXX
#include <ndtxt.hxx>
#endif
#ifndef _NDINDEX_HXX
#include <ndindex.hxx>
#endif
#ifndef _REDLINE_HXX
#include <redline.hxx>
#endif
#ifndef _REDLENUM_HXX
#include <redlenum.hxx>
#endif
#ifndef _UNDOBJ_HXX
#include <undobj.hxx>
#endif
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#ifndef _SECTION_HXX
#include <section.hxx>
#endif
#ifndef _TOX_HXX
#include <tox.hxx>
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#endif
class CompareLine
{
public:
CompareLine() {}
virtual ~CompareLine();
virtual ULONG GetHashValue() const = 0;
virtual BOOL Compare( const CompareLine& rLine ) const = 0;
};
DECLARE_LIST( CompareList, CompareLine* )
class CompareData
{
ULONG* pIndex;
BOOL* pChangedFlag;
protected:
CompareList aLines;
ULONG nSttLineNum;
// Anfang und Ende beschneiden und alle anderen in das
// LinesArray setzen
virtual void CheckRanges( CompareData& ) = 0;
public:
CompareData();
virtual ~CompareData();
// gibt es unterschiede?
BOOL HasDiffs( const CompareData& rData ) const;
// startet das Vergleichen und Erzeugen der Unterschiede zweier
// Dokumente
void CompareLines( CompareData& rData );
// lasse die Unterschiede anzeigen - ruft die beiden Methoden
// ShowInsert / ShowDelete. Diese bekommen die Start und EndLine-Nummer
// uebergeben. Die Abbildung auf den tatsaechline Inhalt muss die
// Ableitung uebernehmen!
ULONG ShowDiffs( const CompareData& rData );
virtual void ShowInsert( ULONG nStt, ULONG nEnd );
virtual void ShowDelete( const CompareData& rData, ULONG nStt,
ULONG nEnd, ULONG nInsPos );
virtual void CheckForChangesInLine( const CompareData& rData,
ULONG& nStt, ULONG& nEnd,
ULONG& nThisStt, ULONG& nThisEnd );
// Eindeutigen Index fuer eine Line setzen. Gleiche Lines haben den
// selben Index; auch in den anderen CompareData!
void SetIndex( ULONG nLine, ULONG nIndex );
ULONG GetIndex( ULONG nLine ) const
{ return nLine < aLines.Count() ? pIndex[ nLine ] : 0; }
// setze/erfrage ob eine Zeile veraendert ist
void SetChanged( ULONG nLine, BOOL bFlag = TRUE );
BOOL GetChanged( ULONG nLine ) const
{
return (pChangedFlag && nLine < aLines.Count())
? pChangedFlag[ nLine ]
: 0;
}
ULONG GetLineCount() const { return aLines.Count(); }
ULONG GetLineOffset() const { return nSttLineNum; }
const CompareLine* GetLine( ULONG nLine ) const
{ return aLines.GetObject( nLine ); }
void InsertLine( CompareLine* pLine )
{ aLines.Insert( pLine, LIST_APPEND ); }
#ifdef JP_DUMP
// zum Debuggen!
virtual void Dump();
#endif
};
class Hash
{
struct _HashData
{
ULONG nNext, nHash;
const CompareLine* pLine;
_HashData()
: nNext( 0 ), nHash( 0 ), pLine(0) {}
};
ULONG* pHashArr;
_HashData* pDataArr;
ULONG nCount, nPrime;
public:
Hash( ULONG nSize );
~Hash();
void CalcHashValue( CompareData& rData );
ULONG GetCount() const { return nCount; }
};
class Compare
{
public:
class MovedData
{
ULONG* pIndex;
ULONG* pLineNum;
ULONG nCount;
public:
MovedData( CompareData& rData, sal_Char* pDiscard );
~MovedData();
ULONG GetIndex( ULONG n ) const { return pIndex[ n ]; }
ULONG GetLineNum( ULONG n ) const { return pLineNum[ n ]; }
ULONG GetCount() const { return nCount; }
};
private:
// Suche die verschobenen Lines
class CompareSequence
{
CompareData &rData1, &rData2;
const MovedData &rMoved1, &rMoved2;
long *pMemory, *pFDiag, *pBDiag;
void Compare( ULONG nStt1, ULONG nEnd1, ULONG nStt2, ULONG nEnd2 );
ULONG CheckDiag( ULONG nStt1, ULONG nEnd1,
ULONG nStt2, ULONG nEnd2, ULONG* pCost );
public:
CompareSequence( CompareData& rData1, CompareData& rData2,
const MovedData& rD1, const MovedData& rD2 );
~CompareSequence();
};
static void CountDifference( const CompareData& rData, ULONG* pCounts );
static void SetDiscard( const CompareData& rData,
sal_Char* pDiscard, ULONG* pCounts );
static void CheckDiscard( ULONG nLen, sal_Char* pDiscard );
static ULONG SetChangedFlag( CompareData& rData, sal_Char* pDiscard, int bFirst );
static void ShiftBoundaries( CompareData& rData1, CompareData& rData2 );
public:
Compare( ULONG nDiff, CompareData& rData1, CompareData& rData2 );
};
// ====================================================================
CompareLine::~CompareLine() {}
// ----------------------------------------------------------------------
CompareData::CompareData()
: nSttLineNum( 0 ), pIndex( 0 ), pChangedFlag( 0 )
{
}
CompareData::~CompareData()
{
delete pIndex;
delete pChangedFlag;
}
void CompareData::SetIndex( ULONG nLine, ULONG nIndex )
{
if( !pIndex )
{
pIndex = new ULONG[ aLines.Count() ];
memset( pIndex, 0, aLines.Count() * sizeof( ULONG ) );
}
if( nLine < aLines.Count() )
pIndex[ nLine ] = nIndex;
}
#ifdef JP_DUMP
void CompareData::Dump()
{
}
#endif
void CompareData::SetChanged( ULONG nLine, BOOL bFlag )
{
if( !pChangedFlag )
{
pChangedFlag = new BOOL[ aLines.Count() +1 ];
memset( pChangedFlag, 0, aLines.Count() +1 * sizeof( BOOL ) );
}
if( nLine < aLines.Count() )
pChangedFlag[ nLine ] = bFlag;
}
void CompareData::CompareLines( CompareData& rData )
{
CheckRanges( rData );
ULONG nDifferent;
{
Hash aH( GetLineCount() + rData.GetLineCount() + 1 );
aH.CalcHashValue( *this );
aH.CalcHashValue( rData );
nDifferent = aH.GetCount();
}
{
Compare aComp( nDifferent, *this, rData );
}
}
ULONG CompareData::ShowDiffs( const CompareData& rData )
{
ULONG nLen1 = rData.GetLineCount(), nLen2 = GetLineCount();
ULONG nStt1 = 0, nStt2 = 0;
ULONG nCnt = 0;
while( nStt1 < nLen1 || nStt2 < nLen2 )
{
if( rData.GetChanged( nStt1 ) || GetChanged( nStt2 ) )
{
ULONG nSav1 = nStt1, nSav2 = nStt2;
while( nStt1 < nLen1 && rData.GetChanged( nStt1 )) ++nStt1;
while( nStt2 < nLen2 && GetChanged( nStt2 )) ++nStt2;
// rData ist das Original,
// this ist das, in das die Veraenderungen sollen
if( nSav2 != nStt2 && nSav1 != nStt1 )
CheckForChangesInLine( rData, nSav1, nStt1, nSav2, nStt2 );
if( nSav2 != nStt2 )
ShowInsert( nSav2, nStt2 );
if( nSav1 != nStt1 )
ShowDelete( rData, nSav1, nStt1, nStt2 );
++nCnt;
}
++nStt1, ++nStt2;
}
return nCnt;
}
BOOL CompareData::HasDiffs( const CompareData& rData ) const
{
BOOL bRet = FALSE;
ULONG nLen1 = rData.GetLineCount(), nLen2 = GetLineCount();
ULONG nStt1 = 0, nStt2 = 0;
while( nStt1 < nLen1 || nStt2 < nLen2 )
{
if( rData.GetChanged( nStt1 ) || GetChanged( nStt2 ) )
{
bRet = TRUE;
break;
}
++nStt1, ++nStt2;
}
return bRet;
}
void CompareData::ShowInsert( ULONG nStt, ULONG nEnd )
{
}
void CompareData::ShowDelete( const CompareData& rData, ULONG nStt,
ULONG nEnd, ULONG nInsPos )
{
}
void CompareData::CheckForChangesInLine( const CompareData& ,
ULONG&, ULONG&, ULONG&, ULONG& )
{
}
// ----------------------------------------------------------------------
Hash::Hash( ULONG nSize )
: nCount( 1 )
{
static const ULONG primes[] =
{
509,
1021,
2039,
4093,
8191,
16381,
32749,
65521,
131071,
262139,
524287,
1048573,
2097143,
4194301,
8388593,
16777213,
33554393,
67108859, /* Preposterously large . . . */
134217689,
268435399,
536870909,
1073741789,
2147483647,
0
};
pDataArr = new _HashData[ nSize ];
pDataArr[0].nNext = 0;
pDataArr[0].nHash = 0,
pDataArr[0].pLine = 0;
for( int i = 0; primes[i] < nSize / 3; i++)
if( !primes[i] )
{
pHashArr = 0;
return;
}
nPrime = primes[ i ];
pHashArr = new ULONG[ nPrime ];
memset( pHashArr, 0, nPrime * sizeof( ULONG ) );
}
Hash::~Hash()
{
delete pHashArr;
delete pDataArr;
}
void Hash::CalcHashValue( CompareData& rData )
{
if( pHashArr )
{
for( ULONG n = 0; n < rData.GetLineCount(); ++n )
{
const CompareLine* pLine = rData.GetLine( n );
ASSERT( pLine, "wo ist die Line?" );
ULONG nH = pLine->GetHashValue();
ULONG* pFound = &pHashArr[ nH % nPrime ];
for( ULONG i = *pFound; ; i = pDataArr[i].nNext )
if( !i )
{
i = nCount++;
pDataArr[i].nNext = *pFound;
pDataArr[i].nHash = nH;
pDataArr[i].pLine = pLine;
*pFound = i;
break;
}
else if( pDataArr[i].nHash == nH &&
pDataArr[i].pLine->Compare( *pLine ))
break;
rData.SetIndex( n, i );
}
}
}
// ----------------------------------------------------------------------
Compare::Compare( ULONG nDiff, CompareData& rData1, CompareData& rData2 )
{
MovedData *pMD1, *pMD2;
// Suche die unterschiedlichen Lines
{
sal_Char* pDiscard1 = new sal_Char[ rData1.GetLineCount() ];
sal_Char* pDiscard2 = new sal_Char[ rData2.GetLineCount() ];
ULONG* pCount1 = new ULONG[ nDiff ];
ULONG* pCount2 = new ULONG[ nDiff ];
memset( pCount1, 0, nDiff * sizeof( ULONG ));
memset( pCount2, 0, nDiff * sizeof( ULONG ));
// stelle fest, welche Indizies in den CompareData mehrfach vergeben wurden
CountDifference( rData1, pCount1 );
CountDifference( rData2, pCount2 );
// alle die jetzt nur einmal vorhanden sind, sind eingefuegt oder
// geloescht worden. Alle die im anderen auch vorhanden sind, sind
// verschoben worden
SetDiscard( rData1, pDiscard1, pCount2 );
SetDiscard( rData2, pDiscard2, pCount1 );
// die Arrays koennen wir wieder vergessen
delete pCount1; delete pCount2;
CheckDiscard( rData1.GetLineCount(), pDiscard1 );
CheckDiscard( rData2.GetLineCount(), pDiscard2 );
pMD1 = new MovedData( rData1, pDiscard1 );
pMD2 = new MovedData( rData2, pDiscard2 );
// die Arrays koennen wir wieder vergessen
delete pDiscard1; delete pDiscard2;
}
{
CompareSequence aTmp( rData1, rData2, *pMD1, *pMD2 );
}
ShiftBoundaries( rData1, rData2 );
delete pMD1;
delete pMD2;
}
void Compare::CountDifference( const CompareData& rData, ULONG* pCounts )
{
ULONG nLen = rData.GetLineCount();
for( ULONG n = 0; n < nLen; ++n )
{
ULONG nIdx = rData.GetIndex( n );
++pCounts[ nIdx ];
}
}
void Compare::SetDiscard( const CompareData& rData,
sal_Char* pDiscard, ULONG* pCounts )
{
ULONG nLen = rData.GetLineCount();
// berechne Max in Abhanegigkeit zur LineAnzahl
USHORT nMax = 5;
for( ULONG n = nLen / 64; ( n = n >> 2 ) > 0; )
nMax <<= 1;
for( n = 0; n < nLen; ++n )
{
ULONG nIdx = rData.GetIndex( n );
if( nIdx )
{
nIdx = pCounts[ nIdx ];
pDiscard[ n ] = !nIdx ? 1 : nIdx > nMax ? 2 : 0;
}
else
pDiscard[ n ] = 0;
}
}
void Compare::CheckDiscard( ULONG nLen, sal_Char* pDiscard )
{
for( ULONG n = 0; n < nLen; ++n )
{
if( 2 == pDiscard[ n ] )
pDiscard[n] = 0;
else if( pDiscard[ n ] )
{
register ULONG j;
ULONG length;
ULONG provisional = 0;
/* Find end of this run of discardable lines.
Count how many are provisionally discardable. */
for (j = n; j < nLen; j++)
{
if( !pDiscard[j] )
break;
if( 2 == pDiscard[j] )
++provisional;
}
/* Cancel provisional discards at end, and shrink the run. */
while( j > n && 2 == pDiscard[j - 1] )
pDiscard[ --j ] = 0, --provisional;
/* Now we have the length of a run of discardable lines
whose first and last are not provisional. */
length = j - n;
/* If 1/4 of the lines in the run are provisional,
cancel discarding of all provisional lines in the run. */
if (provisional * 4 > length)
{
while (j > n)
if (pDiscard[--j] == 2)
pDiscard[j] = 0;
}
else
{
register ULONG consec;
ULONG minimum = 1;
ULONG tem = length / 4;
/* MINIMUM is approximate square root of LENGTH/4.
A subrun of two or more provisionals can stand
when LENGTH is at least 16.
A subrun of 4 or more can stand when LENGTH >= 64. */
while ((tem = tem >> 2) > 0)
minimum *= 2;
minimum++;
/* Cancel any subrun of MINIMUM or more provisionals
within the larger run. */
for (j = 0, consec = 0; j < length; j++)
if (pDiscard[n + j] != 2)
consec = 0;
else if (minimum == ++consec)
/* Back up to start of subrun, to cancel it all. */
j -= consec;
else if (minimum < consec)
pDiscard[n + j] = 0;
/* Scan from beginning of run
until we find 3 or more nonprovisionals in a row
or until the first nonprovisional at least 8 lines in.
Until that point, cancel any provisionals. */
for (j = 0, consec = 0; j < length; j++)
{
if (j >= 8 && pDiscard[n + j] == 1)
break;
if (pDiscard[n + j] == 2)
consec = 0, pDiscard[n + j] = 0;
else if (pDiscard[n + j] == 0)
consec = 0;
else
consec++;
if (consec == 3)
break;
}
/* I advances to the last line of the run. */
n += length - 1;
/* Same thing, from end. */
for (j = 0, consec = 0; j < length; j++)
{
if (j >= 8 && pDiscard[n - j] == 1)
break;
if (pDiscard[n - j] == 2)
consec = 0, pDiscard[n - j] = 0;
else if (pDiscard[n - j] == 0)
consec = 0;
else
consec++;
if (consec == 3)
break;
}
}
}
}
}
// ----------------------------------------------------------------------
Compare::MovedData::MovedData( CompareData& rData, sal_Char* pDiscard )
: pIndex( 0 ), pLineNum( 0 ), nCount( 0 )
{
ULONG nLen = rData.GetLineCount();
for( ULONG n = 0; n < nLen; ++n )
if( pDiscard[ n ] )
rData.SetChanged( n );
else
++nCount;
if( nCount )
{
pIndex = new ULONG[ nCount ];
pLineNum = new ULONG[ nCount ];
for( n = 0, nCount = 0; n < nLen; ++n )
if( !pDiscard[ n ] )
{
pIndex[ nCount ] = rData.GetIndex( n );
pLineNum[ nCount++ ] = n;
}
}
}
Compare::MovedData::~MovedData()
{
delete pIndex;
delete pLineNum;
}
// ----------------------------------------------------------------------
// Suche die verschobenen Lines
Compare::CompareSequence::CompareSequence(
CompareData& rD1, CompareData& rD2,
const MovedData& rMD1, const MovedData& rMD2 )
: rData1( rD1 ), rData2( rD2 ), rMoved1( rMD1 ), rMoved2( rMD2 )
{
ULONG nSize = rMD1.GetCount() + rMD2.GetCount() + 3;
pMemory = new long[ nSize * 2 ];
pFDiag = pMemory + ( rMD2.GetCount() + 1 );
pBDiag = pMemory + ( nSize + rMD2.GetCount() + 1 );
#ifdef JP_DUMP
rD1.Dump(), rD2.Dump();
#endif
Compare( 0, rMD1.GetCount(), 0, rMD2.GetCount() );
}
Compare::CompareSequence::~CompareSequence()
{
delete pMemory;
}
void Compare::CompareSequence::Compare( ULONG nStt1, ULONG nEnd1,
ULONG nStt2, ULONG nEnd2 )
{
/* Slide down the bottom initial diagonal. */
while( nStt1 < nEnd1 && nStt2 < nEnd2 &&
rMoved1.GetIndex( nStt1 ) == rMoved2.GetIndex( nStt2 ))
++nStt1, ++nStt2;
/* Slide up the top initial diagonal. */
while( nEnd1 > nStt1 && nEnd2 > nStt2 &&
rMoved1.GetIndex( nEnd1 - 1 ) == rMoved2.GetIndex( nEnd2 - 1 ))
--nEnd1, --nEnd2;
/* Handle simple cases. */
if( nStt1 == nEnd1 )
while( nStt2 < nEnd2 )
rData2.SetChanged( rMoved2.GetLineNum( nStt2++ ));
else if (nStt2 == nEnd2)
while (nStt1 < nEnd1)
rData1.SetChanged( rMoved1.GetLineNum( nStt1++ ));
else
{
ULONG c, d, b;
/* Find a point of correspondence in the middle of the files. */
d = CheckDiag( nStt1, nEnd1, nStt2, nEnd2, &c );
b = pBDiag[ d ];
if( 1 != c )
{
/* Use that point to split this problem into two subproblems. */
Compare( nStt1, b, nStt2, b - d );
/* This used to use f instead of b,
but that is incorrect!
It is not necessarily the case that diagonal d
has a snake from b to f. */
Compare( b, nEnd1, b - d, nEnd2 );
}
}
}
ULONG Compare::CompareSequence::CheckDiag( ULONG nStt1, ULONG nEnd1,
ULONG nStt2, ULONG nEnd2, ULONG* pCost )
{
const long dmin = nStt1 - nEnd2; /* Minimum valid diagonal. */
const long dmax = nEnd1 - nStt2; /* Maximum valid diagonal. */
const long fmid = nStt1 - nStt2; /* Center diagonal of top-down search. */
const long bmid = nEnd1 - nEnd2; /* Center diagonal of bottom-up search. */
long fmin = fmid, fmax = fmid; /* Limits of top-down search. */
long bmin = bmid, bmax = bmid; /* Limits of bottom-up search. */
long c; /* Cost. */
long odd = (fmid - bmid) & 1; /* True if southeast corner is on an odd
diagonal with respect to the northwest. */
pFDiag[fmid] = nStt1;
pBDiag[bmid] = nEnd1;
for (c = 1;; ++c)
{
long d; /* Active diagonal. */
long big_snake = 0;
/* Extend the top-down search by an edit step in each diagonal. */
fmin > dmin ? pFDiag[--fmin - 1] = -1 : ++fmin;
fmax < dmax ? pFDiag[++fmax + 1] = -1 : --fmax;
for (d = fmax; d >= fmin; d -= 2)
{
long x, y, oldx, tlo = pFDiag[d - 1], thi = pFDiag[d + 1];
if (tlo >= thi)
x = tlo + 1;
else
x = thi;
oldx = x;
y = x - d;
while( ULONG(x) < nEnd1 && ULONG(y) < nEnd2 &&
rMoved1.GetIndex( x ) == rMoved2.GetIndex( y ))
++x, ++y;
if (x - oldx > 20)
big_snake = 1;
pFDiag[d] = x;
if( odd && bmin <= d && d <= bmax && pBDiag[d] <= pFDiag[d] )
{
*pCost = 2 * c - 1;
return d;
}
}
/* Similar extend the bottom-up search. */
bmin > dmin ? pBDiag[--bmin - 1] = INT_MAX : ++bmin;
bmax < dmax ? pBDiag[++bmax + 1] = INT_MAX : --bmax;
for (d = bmax; d >= bmin; d -= 2)
{
long x, y, oldx, tlo = pBDiag[d - 1], thi = pBDiag[d + 1];
if (tlo < thi)
x = tlo;
else
x = thi - 1;
oldx = x;
y = x - d;
while( ULONG(x) > nStt1 && ULONG(y) > nStt2 &&
rMoved1.GetIndex( x - 1 ) == rMoved2.GetIndex( y - 1 ))
--x, --y;
if (oldx - x > 20)
big_snake = 1;
pBDiag[d] = x;
if (!odd && fmin <= d && d <= fmax && pBDiag[d] <= pFDiag[d])
{
*pCost = 2 * c;
return d;
}
}
}
}
void Compare::ShiftBoundaries( CompareData& rData1, CompareData& rData2 )
{
for( int i = 0; i < 2; ++i )
{
CompareData* pData = &rData1;
CompareData* pOtherData = &rData2;
ULONG i = 0;
ULONG j = 0;
ULONG i_end = pData->GetLineCount();
ULONG preceding = ULONG_MAX;
ULONG other_preceding = ULONG_MAX;
while (1)
{
ULONG start, other_start;
/* Scan forwards to find beginning of another run of changes.
Also keep track of the corresponding point in the other file. */
while( i < i_end && !pData->GetChanged( i ) )
{
while( pOtherData->GetChanged( j++ ))
/* Non-corresponding lines in the other file
will count as the preceding batch of changes. */
other_preceding = j;
i++;
}
if (i == i_end)
break;
start = i;
other_start = j;
while (1)
{
/* Now find the end of this run of changes. */
while( pData->GetChanged( ++i ))
;
/* If the first changed line matches the following unchanged one,
and this run does not follow right after a previous run,
and there are no lines deleted from the other file here,
then classify the first changed line as unchanged
and the following line as changed in its place. */
/* You might ask, how could this run follow right after another?
Only because the previous run was shifted here. */
if( i != i_end &&
pData->GetIndex( start ) == pData->GetIndex( i ) &&
!pOtherData->GetChanged( j ) &&
!( start == preceding || other_start == other_preceding ))
{
pData->SetChanged( start++, 0 );
pData->SetChanged( i );
/* Since one line-that-matches is now before this run
instead of after, we must advance in the other file
to keep in synch. */
++j;
}
else
break;
}
preceding = i;
other_preceding = j;
}
pData = &rData2;
pOtherData = &rData1;
}
}
/* */
class SwCompareLine : public CompareLine
{
const SwNode& rNode;
public:
SwCompareLine( const SwNode& rNd );
virtual ~SwCompareLine();
virtual ULONG GetHashValue() const;
virtual BOOL Compare( const CompareLine& rLine ) const;
static ULONG GetTxtNodeHashValue( const SwTxtNode& rNd, ULONG nVal );
static BOOL CompareNode( const SwNode& rDstNd, const SwNode& rSrcNd );
static BOOL CompareTxtNd( const SwTxtNode& rDstNd,
const SwTxtNode& rSrcNd );
BOOL ChangesInLine( const SwCompareLine& rLine,
SwPaM *& rpInsRing, SwPaM*& rpDelRing ) const;
const SwNode& GetNode() const { return rNode; }
const SwNode& GetEndNode() const;
// fuers Debugging!
String GetText() const;
};
class SwCompareData : public CompareData
{
SwDoc& rDoc;
SwPaM *pInsRing, *pDelRing;
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ULONG PrevIdx( const SwNode* pNd );
ULONG NextIdx( const SwNode* pNd );
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virtual void CheckRanges( CompareData& );
virtual void ShowInsert( ULONG nStt, ULONG nEnd );
virtual void ShowDelete( const CompareData& rData, ULONG nStt,
ULONG nEnd, ULONG nInsPos );
virtual void CheckForChangesInLine( const CompareData& rData,
ULONG& nStt, ULONG& nEnd,
ULONG& nThisStt, ULONG& nThisEnd );
public:
SwCompareData( SwDoc& rD ) : rDoc( rD ), pInsRing(0), pDelRing(0) {}
virtual ~SwCompareData();
void SetRedlinesToDoc( BOOL bUseDocInfo, const SwDoc& rSrcDoc );
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#ifdef JP_DUMP
// zum Debuggen!
virtual void Dump();
#endif
};
// ----------------------------------------------------------------
SwCompareLine::SwCompareLine( const SwNode& rNd )
: rNode( rNd )
{
}
SwCompareLine::~SwCompareLine()
{
}
ULONG SwCompareLine::GetHashValue() const
{
ULONG nRet = 0;
switch( rNode.GetNodeType() )
{
case ND_TEXTNODE:
nRet = GetTxtNodeHashValue( (SwTxtNode&)rNode, nRet );
break;
case ND_TABLENODE:
{
const SwNode* pEndNd = rNode.EndOfSectionNode();
SwNodeIndex aIdx( rNode );
while( &aIdx.GetNode() != pEndNd )
{
if( aIdx.GetNode().IsTxtNode() )
nRet = GetTxtNodeHashValue( (SwTxtNode&)aIdx.GetNode(), nRet );
aIdx++;
}
}
break;
case ND_SECTIONNODE:
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{
String sStr( GetText() );
for( xub_StrLen n = 0; n < sStr.Len(); ++n )
( nRet <<= 1 ) += sStr.GetChar( n );
}
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break;
case ND_GRFNODE:
case ND_OLENODE:
// feste Id ? sollte aber nie auftauchen
break;
}
return nRet;
}
const SwNode& SwCompareLine::GetEndNode() const
{
const SwNode* pNd = &rNode;
switch( rNode.GetNodeType() )
{
case ND_TABLENODE:
pNd = rNode.EndOfSectionNode();
break;
case ND_SECTIONNODE:
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{
const SwSectionNode& rSNd = (SwSectionNode&)rNode;
const SwSection& rSect = rSNd.GetSection();
if( CONTENT_SECTION != rSect.GetType() || rSect.IsProtect() )
pNd = rNode.EndOfSectionNode();
}
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break;
}
return *pNd;
}
BOOL SwCompareLine::Compare( const CompareLine& rLine ) const
{
return CompareNode( rNode, ((SwCompareLine&)rLine).rNode );
}
BOOL SwCompareLine::CompareNode( const SwNode& rDstNd, const SwNode& rSrcNd )
{
BOOL bRet = FALSE;
switch( ( rSrcNd.GetNodeType() * 256 ) + rDstNd.GetNodeType() )
{
case ( ND_TEXTNODE * 256 ) + ND_TEXTNODE:
bRet = CompareTxtNd( (SwTxtNode&)rDstNd, (SwTxtNode&)rSrcNd );
break;
case ( ND_TABLENODE * 256 ) + ND_TABLENODE:
{
const SwTableNode& rTSrcNd = (SwTableNode&)rSrcNd;
const SwTableNode& rTDstNd = (SwTableNode&)rDstNd;
bRet = ( rTSrcNd.EndOfSectionIndex() - rTSrcNd.GetIndex() ) ==
( rTDstNd.EndOfSectionIndex() - rTDstNd.GetIndex() );
}
break;
case ( ND_SECTIONNODE * 256 ) + ND_SECTIONNODE:
{
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const SwSectionNode& rSSrcNd = (SwSectionNode&)rSrcNd,
& rSDstNd = (SwSectionNode&)rDstNd;
const SwSection& rSrcSect = rSSrcNd.GetSection(),
& rDstSect = rSDstNd.GetSection();
SectionType eSrcSectType = rSrcSect.GetType(),
eDstSectType = rDstSect.GetType();
switch( eSrcSectType )
{
case CONTENT_SECTION:
bRet = CONTENT_SECTION == eDstSectType &&
rSrcSect.IsProtect() == rDstSect.IsProtect();
if( bRet && rSrcSect.IsProtect() )
{
// the only have they both the same size
bRet = ( rSSrcNd.EndOfSectionIndex() - rSSrcNd.GetIndex() ) ==
( rSDstNd.EndOfSectionIndex() - rSDstNd.GetIndex() );
}
break;
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case TOX_HEADER_SECTION:
case TOX_CONTENT_SECTION:
if( TOX_HEADER_SECTION == eDstSectType ||
TOX_CONTENT_SECTION == eDstSectType )
{
// the same type of TOX?
const SwTOXBase* pSrcTOX = rSrcSect.GetTOXBase();
const SwTOXBase* pDstTOX = rDstSect.GetTOXBase();
bRet = pSrcTOX && pDstTOX
&& pSrcTOX->GetType() == pDstTOX->GetType()
&& pSrcTOX->GetTitle() == pDstTOX->GetTitle()
&& pSrcTOX->GetTypeName() == pDstTOX->GetTypeName()
// && pSrcTOX->GetTOXName() == pDstTOX->GetTOXName()
;
}
break;
case DDE_LINK_SECTION:
case FILE_LINK_SECTION:
bRet = eSrcSectType == eDstSectType &&
rSrcSect.GetLinkFileName() ==
rDstSect.GetLinkFileName();
break;
}
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}
break;
case ( ND_ENDNODE * 256 ) + ND_ENDNODE:
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/* if( rSrcNd.FindStartNode()->IsTableNode() &&
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rDstNd.FindStartNode()->IsTableNode() )
{
}
else if( rSrcNd.FindStartNode()->IsTableNode() &&
rDstNd.FindStartNode()->IsTableNode() )
{
}
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*/ break;
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}
return bRet;
}
String SwCompareLine::GetText() const
{
String sRet;
switch( rNode.GetNodeType() )
{
case ND_TEXTNODE:
sRet = ((SwTxtNode&)rNode).GetExpandTxt();
break;
case ND_TABLENODE:
{
const SwNode* pEndNd = rNode.EndOfSectionNode();
SwNodeIndex aIdx( rNode );
while( &aIdx.GetNode() != pEndNd )
{
if( aIdx.GetNode().IsTxtNode() )
{
if( sRet.Len() )
sRet.Append( '\n' );
sRet.Append( ((SwTxtNode&)rNode).GetExpandTxt() );
}
aIdx++;
}
sRet.InsertAscii( "Tabelle: ", 0 );
}
break;
case ND_SECTIONNODE:
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{
sRet.AssignAscii( RTL_CONSTASCII_STRINGPARAM( "Section - Node:" ));
const SwSectionNode& rSNd = (SwSectionNode&)rNode;
const SwSection& rSect = rSNd.GetSection();
switch( rSect.GetType() )
{
case CONTENT_SECTION:
if( rSect.IsProtect() )
sRet.Append( String::CreateFromInt32(
rSNd.EndOfSectionIndex() - rSNd.GetIndex() ));
break;
case TOX_HEADER_SECTION:
case TOX_CONTENT_SECTION:
{
const SwTOXBase* pTOX = rSect.GetTOXBase();
if( pTOX )
sRet.Append( pTOX->GetTitle() )
.Append( pTOX->GetTypeName() )
// .Append( pTOX->GetTOXName() )
.Append( String::CreateFromInt32( pTOX->GetType() ));
}
break;
case DDE_LINK_SECTION:
case FILE_LINK_SECTION:
sRet += rSect.GetLinkFileName();
break;
}
}
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break;
case ND_GRFNODE:
sRet.AssignAscii( RTL_CONSTASCII_STRINGPARAM( "Grafik - Node:" ));
break;
case ND_OLENODE:
sRet.AssignAscii( RTL_CONSTASCII_STRINGPARAM( "OLE - Node:" ));
break;
}
return sRet;
}
ULONG SwCompareLine::GetTxtNodeHashValue( const SwTxtNode& rNd, ULONG nVal )
{
String sStr( rNd.GetExpandTxt() );
for( xub_StrLen n = 0; n < sStr.Len(); ++n )
( nVal <<= 1 ) += sStr.GetChar( n );
return nVal;
}
BOOL SwCompareLine::CompareTxtNd( const SwTxtNode& rDstNd,
const SwTxtNode& rSrcNd )
{
BOOL bRet = FALSE;
// erstmal ganz einfach!
if( rDstNd.GetTxt() == rSrcNd.GetTxt() )
{
// der Text ist gleich, aber sind die "Sonderattribute" (0xFF) auch
// dieselben??
bRet = TRUE;
}
return bRet;
}
BOOL SwCompareLine::ChangesInLine( const SwCompareLine& rLine,
SwPaM *& rpInsRing, SwPaM*& rpDelRing ) const
{
BOOL bRet = FALSE;
if( ND_TEXTNODE == rNode.GetNodeType() &&
ND_TEXTNODE == rLine.GetNode().GetNodeType() )
{
SwTxtNode& rDestNd = *(SwTxtNode*)rNode.GetTxtNode();
const SwTxtNode& rSrcNd = *rLine.GetNode().GetTxtNode();
xub_StrLen nDEnd = rDestNd.GetTxt().Len(), nSEnd = rSrcNd.GetTxt().Len();
for( xub_StrLen nStt = 0, nEnd = Min( nDEnd, nSEnd );
nStt < nEnd; ++nStt )
if( rDestNd.GetTxt().GetChar( nStt ) !=
rSrcNd.GetTxt().GetChar( nStt ) )
break;
while( nStt < nDEnd && nStt < nSEnd )
{
--nDEnd, --nSEnd;
if( rDestNd.GetTxt().GetChar( nDEnd ) !=
rSrcNd.GetTxt().GetChar( nSEnd ) )
{
++nDEnd, ++nSEnd;
break;
}
}
if( nStt || !nDEnd || !nSEnd || nDEnd < rDestNd.GetTxt().Len() ||
nSEnd < rSrcNd.GetTxt().Len() )
{
// jetzt ist zwischen nStt bis nDEnd das neu eingefuegte
// und zwischen nStt und nSEnd das geloeschte
SwDoc* pDoc = rDestNd.GetDoc();
SwPaM aPam( rDestNd, nDEnd );
if( nStt != nDEnd )
{
SwPaM* pTmp = new SwPaM( *aPam.GetPoint(), rpInsRing );
if( !rpInsRing )
rpInsRing = pTmp;
pTmp->SetMark();
pTmp->GetMark()->nContent = nStt;
}
if( nStt != nSEnd )
{
{
BOOL bUndo = pDoc->DoesUndo();
pDoc->DoUndo( FALSE );
SwPaM aCpyPam( rSrcNd, nStt );
aCpyPam.SetMark();
aCpyPam.GetPoint()->nContent = nSEnd;
aCpyPam.GetDoc()->Copy( aCpyPam, *aPam.GetPoint() );
pDoc->DoUndo( bUndo );
}
SwPaM* pTmp = new SwPaM( *aPam.GetPoint(), rpDelRing );
if( !rpDelRing )
rpDelRing = pTmp;
pTmp->SetMark();
pTmp->GetMark()->nContent = nDEnd;
if( rpInsRing )
{
SwPaM* pCorr = (SwPaM*)rpInsRing->GetPrev();
if( *pCorr->GetPoint() == *pTmp->GetPoint() )
*pCorr->GetPoint() = *pTmp->GetMark();
}
}
bRet = TRUE;
}
}
return bRet;
}
// ----------------------------------------------------------------
SwCompareData::~SwCompareData()
{
if( pDelRing )
{
while( pDelRing->GetNext() != pDelRing )
delete pDelRing->GetNext();
delete pDelRing;
}
if( pInsRing )
{
while( pInsRing->GetNext() != pInsRing )
delete pInsRing->GetNext();
delete pInsRing;
}
}
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ULONG SwCompareData::NextIdx( const SwNode* pNd )
{
if( pNd->IsStartNode() )
{
const SwSectionNode* pSNd;
if( pNd->IsTableNode() ||
( 0 != (pSNd = pNd->GetSectionNode() ) &&
( CONTENT_SECTION != pSNd->GetSection().GetType() ||
pSNd->GetSection().IsProtect() ) ) )
pNd = pNd->EndOfSectionNode();
}
return pNd->GetIndex() + 1;
}
ULONG SwCompareData::PrevIdx( const SwNode* pNd )
{
if( pNd->IsEndNode() )
{
const SwSectionNode* pSNd;
if( pNd->StartOfSectionNode()->IsTableNode() ||
( 0 != (pSNd = pNd->StartOfSectionNode()->GetSectionNode() ) &&
( CONTENT_SECTION != pSNd->GetSection().GetType() ||
pSNd->GetSection().IsProtect() ) ) )
pNd = pNd->StartOfSectionNode();
}
return pNd->GetIndex() - 1;
}
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void SwCompareData::CheckRanges( CompareData& rData )
{
const SwNodes& rSrcNds = ((SwCompareData&)rData).rDoc.GetNodes();
const SwNodes& rDstNds = rDoc.GetNodes();
const SwNode& rSrcEndNd = rSrcNds.GetEndOfContent();
const SwNode& rDstEndNd = rDstNds.GetEndOfContent();
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ULONG nSrcSttIdx = NextIdx( rSrcEndNd.FindStartNode() );
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ULONG nSrcEndIdx = rSrcEndNd.GetIndex();
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ULONG nDstSttIdx = NextIdx( rDstEndNd.FindStartNode() );
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ULONG nDstEndIdx = rDstEndNd.GetIndex();
while( nSrcSttIdx < nSrcEndIdx && nDstSttIdx < nDstEndIdx )
{
const SwNode* pSrcNd = rSrcNds[ nSrcSttIdx ];
const SwNode* pDstNd = rDstNds[ nDstSttIdx ];
if( !SwCompareLine::CompareNode( *pSrcNd, *pDstNd ))
break;
nSrcSttIdx = NextIdx( pSrcNd );
nDstSttIdx = NextIdx( pDstNd );
}
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nSrcEndIdx = PrevIdx( &rSrcEndNd );
nDstEndIdx = PrevIdx( &rDstEndNd );
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while( nSrcSttIdx < nSrcEndIdx && nDstSttIdx < nDstEndIdx )
{
const SwNode* pSrcNd = rSrcNds[ nSrcEndIdx ];
const SwNode* pDstNd = rDstNds[ nDstEndIdx ];
if( !SwCompareLine::CompareNode( *pSrcNd, *pDstNd ))
break;
nSrcEndIdx = PrevIdx( pSrcNd );
nDstEndIdx = PrevIdx( pDstNd );
}
while( nSrcSttIdx <= nSrcEndIdx )
{
const SwNode* pNd = rSrcNds[ nSrcSttIdx ];
rData.InsertLine( new SwCompareLine( *pNd ) );
nSrcSttIdx = NextIdx( pNd );
}
while( nDstSttIdx <= nDstEndIdx )
{
const SwNode* pNd = rDstNds[ nDstSttIdx ];
InsertLine( new SwCompareLine( *pNd ) );
nDstSttIdx = NextIdx( pNd );
}
}
void SwCompareData::ShowInsert( ULONG nStt, ULONG nEnd )
{
SwPaM* pTmp = new SwPaM( ((SwCompareLine*)GetLine( nStt ))->GetNode(), 0,
((SwCompareLine*)GetLine( nEnd-1 ))->GetEndNode(), 0,
pInsRing );
if( !pInsRing )
pInsRing = pTmp;
// vom Anfang des 1. Absatzes (1. Buchstabe) bis
// zum letzten Absatz (letzter Buchstabe!)
pTmp->GetPoint()->nNode++;
pTmp->GetPoint()->nContent.Assign( pTmp->GetCntntNode(), 0 );
}
void SwCompareData::ShowDelete( const CompareData& rData, ULONG nStt,
ULONG nEnd, ULONG nInsPos )
{
SwNodeRange aRg(
((SwCompareLine*)rData.GetLine( nStt ))->GetNode(), 0,
((SwCompareLine*)rData.GetLine( nEnd-1 ))->GetEndNode(), 1 );
USHORT nOffset = 0;
const CompareLine* pLine;
if( GetLineCount() == nInsPos )
{
pLine = GetLine( nInsPos-1 );
nOffset = 1;
}
else
pLine = GetLine( nInsPos );
const SwNode* pLineNd;
if( pLine )
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{
if( nOffset )
pLineNd = &((SwCompareLine*)pLine)->GetEndNode();
else
pLineNd = &((SwCompareLine*)pLine)->GetNode();
}
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else
{
pLineNd = &rDoc.GetNodes().GetEndOfContent();
nOffset = 0;
}
SwNodeIndex aInsPos( *pLineNd, nOffset );
SwNodeIndex aSavePos( aInsPos, -1 );
((SwCompareData&)rData).rDoc.CopyWithFlyInFly( aRg, aInsPos );
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rDoc.SetModified();
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aSavePos++;
SwPaM* pTmp = new SwPaM( aSavePos.GetNode(), aInsPos.GetNode(), 0, 0,
pDelRing );
if( !pDelRing )
pDelRing = pTmp;
if( pInsRing )
{
SwPaM* pCorr = (SwPaM*)pInsRing->GetPrev();
if( *pCorr->GetPoint() == *pTmp->GetPoint() )
*pCorr->GetPoint() = *pTmp->GetMark();
}
}
void SwCompareData::CheckForChangesInLine( const CompareData& rData,
ULONG& rStt, ULONG& rEnd,
ULONG& rThisStt, ULONG& rThisEnd )
{
while( rStt < rEnd && rThisStt < rThisEnd )
{
SwCompareLine* pDstLn = (SwCompareLine*)GetLine( rThisStt );
SwCompareLine* pSrcLn = (SwCompareLine*)rData.GetLine( rStt );
if( !pDstLn->ChangesInLine( *pSrcLn, pInsRing, pDelRing ) )
break;
++rStt;
++rThisStt;
}
}
void SwCompareData::SetRedlinesToDoc( BOOL bUseDocInfo, const SwDoc& rSrcDoc )
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{
SwPaM* pTmp = pDelRing;
// Bug #83296#: get the Author / TimeStamp from the "other"
// document info
USHORT nAuthor = rDoc.GetRedlineAuthor();
DateTime aTimeStamp;
const SfxDocumentInfo* pDocInfo;
if( bUseDocInfo && 0 != (pDocInfo = rDoc.GetpInfo()) )
{
SfxStamp aTmp( 1 == pDocInfo->GetDocumentNumber()
? pDocInfo->GetCreated()
: pDocInfo->GetChanged() );
if( aTmp.GetName().Len() )
{
nAuthor = rDoc.InsertRedlineAuthor( aTmp.GetName() );
aTimeStamp = aTmp.GetTime();
}
}
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if( pTmp )
{
SwRedlineData aRedlnData( REDLINE_DELETE, nAuthor, aTimeStamp,
aEmptyStr, 0, 0 );
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do {
rDoc.DeleteRedline( *pTmp, FALSE );
if( rDoc.DoesUndo() )
rDoc.AppendUndo( new SwUndoCompDoc( *pTmp, FALSE ));
rDoc.AppendRedline( new SwRedline( aRedlnData, *pTmp ) );
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} while( pDelRing != ( pTmp = (SwPaM*)pTmp->GetNext() ));
}
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pTmp = pInsRing;
if( pTmp )
{
SwRedlineData aRedlnData( REDLINE_INSERT, nAuthor, aTimeStamp,
aEmptyStr, 0, 0 );
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// zusammenhaengende zusammenfassen
if( pTmp->GetNext() != pInsRing )
{
const SwCntntNode* pCNd;
do {
SwPosition& rSttEnd = *pTmp->End(),
& rEndStt = *((SwPaM*)pTmp->GetNext())->Start();
if( rSttEnd == rEndStt ||
(!rEndStt.nContent.GetIndex() &&
rEndStt.nNode.GetIndex() - 1 == rSttEnd.nNode.GetIndex() &&
0 != ( pCNd = rSttEnd.nNode.GetNode().GetCntntNode() )
? rSttEnd.nContent.GetIndex() == pCNd->Len()
: 0 ))
{
if( pTmp->GetNext() == pInsRing )
{
// liegen hintereinander also zusammen fassen
rEndStt = *pTmp->Start();
delete pTmp;
pTmp = pInsRing;
}
else
{
// liegen hintereinander also zusammen fassen
rSttEnd = *((SwPaM*)pTmp->GetNext())->End();
delete pTmp->GetNext();
}
}
else
pTmp = (SwPaM*)pTmp->GetNext();
} while( pInsRing != pTmp );
}
do {
if( rDoc.AppendRedline( new SwRedline( aRedlnData, *pTmp )) &&
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rDoc.DoesUndo() )
rDoc.AppendUndo( new SwUndoCompDoc( *pTmp, TRUE ));
} while( pInsRing != ( pTmp = (SwPaM*)pTmp->GetNext() ));
}
}
#ifdef JP_DUMP
void SwCompareData::Dump()
{
static int nFirst = 1;
SvFileStream aStrm( "d:\\tmp\\compare.dmp", nFirst
? STREAM_WRITE | STREAM_TRUNC
: STREAM_WRITE | STREAM_NOCREATE );
if( !nFirst )
aStrm.Seek( STREAM_SEEK_TO_END );
nFirst = 0;
aStrm << "\n";
ULONG nLCount = aLines.Count();
for( ULONG n = 0; n < nLCount; ++n )
{
SwCompareLine* pLine = (SwCompareLine*)GetLine( n );
String sTxt( pLine->GetText() );
char sBuffer[ 20 ];
sprintf( sBuffer, "[%4ld][%3ld][%1d]",
pLine->GetNode().GetIndex(),
GetIndex( n ), GetChanged( n ) );
( aStrm << sBuffer ).WriteByteString( sTxt ) << '\n';
}
}
#endif
/* */
// returnt (?die Anzahl der Unterschiede?) ob etwas unterschiedlich ist
long SwDoc::CompareDoc( const SwDoc& rDoc )
{
if( &rDoc == this )
return 0;
long nRet = 0;
StartUndo();
BOOL bDocWasModified = IsModified();
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SwDoc& rSrcDoc = (SwDoc&)rDoc;
BOOL bSrcModified = rSrcDoc.IsModified();
SwRedlineMode eSrcRedlMode = rSrcDoc.GetRedlineMode();
rSrcDoc.SetRedlineMode( REDLINE_SHOW_INSERT );
SetRedlineMode( REDLINE_ON | REDLINE_SHOW_INSERT );
SwCompareData aD0( rSrcDoc );
SwCompareData aD1( *this );
aD1.CompareLines( aD0 );
nRet = aD1.ShowDiffs( aD0 );
if( nRet )
{
SetRedlineMode( REDLINE_ON | REDLINE_SHOW_INSERT | REDLINE_SHOW_DELETE );
aD1.SetRedlinesToDoc( !bDocWasModified, rSrcDoc );
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SetModified();
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}
#ifdef JP_DUMP
aD0.Dump(), aD1.Dump();
#endif
rSrcDoc.SetRedlineMode( eSrcRedlMode );
SetRedlineMode( REDLINE_SHOW_INSERT | REDLINE_SHOW_DELETE );
if( !bSrcModified )
rSrcDoc.ResetModified();
EndUndo();
return nRet;
}
typedef void (SwDoc::*FNInsUndo)( SwUndo* );
class _SaveMergeRedlines : public Ring
{
const SwRedline* pSrcRedl;
SwRedline* pDestRedl;
public:
_SaveMergeRedlines( const SwNode& rDstNd,
const SwRedline& rSrcRedl, Ring* pRing );
USHORT InsertRedline( FNInsUndo pFn );
SwRedline* GetDestRedline() { return pDestRedl; }
};
_SaveMergeRedlines::_SaveMergeRedlines( const SwNode& rDstNd,
const SwRedline& rSrcRedl, Ring* pRing )
: Ring( pRing ), pSrcRedl( &rSrcRedl )
{
SwPosition aPos( rDstNd );
const SwPosition* pStt = rSrcRedl.Start();
if( rDstNd.IsCntntNode() )
aPos.nContent.Assign( ((SwCntntNode*)&rDstNd), pStt->nContent.GetIndex() );
pDestRedl = new SwRedline( rSrcRedl.GetRedlineData(), aPos );
if( REDLINE_DELETE == pDestRedl->GetType() )
{
// den Bereich als geloescht kennzeichnen
const SwPosition* pEnd = pStt == rSrcRedl.GetPoint()
? rSrcRedl.GetMark()
: rSrcRedl.GetPoint();
pDestRedl->SetMark();
pDestRedl->GetPoint()->nNode += pEnd->nNode.GetIndex() -
pStt->nNode.GetIndex();
pDestRedl->GetPoint()->nContent.Assign( pDestRedl->GetCntntNode(),
pEnd->nContent.GetIndex() );
}
}
USHORT _SaveMergeRedlines::InsertRedline( FNInsUndo pFn )
{
USHORT nIns = 0;
SwDoc* pDoc = pDestRedl->GetDoc();
if( REDLINE_INSERT == pDestRedl->GetType() )
{
// der Teil wurde eingefuegt, also kopiere ihn aus dem SourceDoc
BOOL bUndo = pDoc->DoesUndo();
pDoc->DoUndo( FALSE );
SwNodeIndex aSaveNd( pDestRedl->GetPoint()->nNode, -1 );
xub_StrLen nSaveCnt = pDestRedl->GetPoint()->nContent.GetIndex();
SwRedlineMode eOld = pDoc->GetRedlineMode();
pDoc->SetRedlineMode_intern( eOld | REDLINE_IGNORE );
pSrcRedl->GetDoc()->Copy( *(SwPaM*)pSrcRedl, *pDestRedl->GetPoint() );
pDoc->SetRedlineMode_intern( eOld );
pDoc->DoUndo( bUndo );
pDestRedl->SetMark();
aSaveNd++;
pDestRedl->GetMark()->nNode = aSaveNd;
pDestRedl->GetMark()->nContent.Assign( aSaveNd.GetNode().GetCntntNode(),
nSaveCnt );
SwPaM* pPrev = ((_SaveMergeRedlines*)GetPrev())->pDestRedl;
if( pPrev && *pPrev->GetPoint() == *pDestRedl->GetPoint() )
*pPrev->GetPoint() == *pDestRedl->GetMark();
}
else
{
//JP 21.09.98: Bug 55909
// falls im Doc auf gleicher Pos aber schon ein geloeschter oder
// eingefuegter ist, dann muss dieser gesplittet werden!
SwPosition* pDStt = pDestRedl->GetMark(),
* pDEnd = pDestRedl->GetPoint();
USHORT n = 0;
// zur StartPos das erste Redline suchen
if( !pDoc->GetRedline( *pDStt, &n ) && n )
--n;
const SwRedlineTbl& rRedlineTbl = pDoc->GetRedlineTbl();
for( ; n < rRedlineTbl.Count(); ++n )
{
SwRedline* pRedl = rRedlineTbl[ n ];
SwPosition* pRStt = pRedl->Start(),
* pREnd = pRStt == pRedl->GetPoint() ? pRedl->GetMark()
: pRedl->GetPoint();
if( REDLINE_DELETE == pRedl->GetType() ||
REDLINE_INSERT == pRedl->GetType() )
{
SwComparePosition eCmpPos = ComparePosition( *pDStt, *pDEnd, *pRStt, *pREnd );
switch( eCmpPos )
{
case POS_COLLIDE_START:
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case POS_BEHIND:
break;
case POS_INSIDE:
case POS_EQUAL:
delete pDestRedl, pDestRedl = 0;
// break; -> kein break !!!!
case POS_COLLIDE_END:
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case POS_BEFORE:
n = rRedlineTbl.Count();
break;
case POS_OUTSIDE:
{
SwRedline* pCpyRedl = new SwRedline(
pDestRedl->GetRedlineData(), *pDStt );
pCpyRedl->SetMark();
*pCpyRedl->GetPoint() = *pRStt;
SwUndoCompDoc* pUndo = pDoc->DoesUndo()
? new SwUndoCompDoc( *pCpyRedl ) : 0;
if( pDoc->AppendRedline( pCpyRedl ) )
{
++nIns;
if( pUndo )
(pDoc->*pFn)( pUndo );
}
else
delete pUndo;
*pDStt = *pREnd;
// dann solle man neu anfangen
n = USHRT_MAX;
}
break;
case POS_OVERLAP_BEFORE:
*pDEnd = *pRStt;
break;
case POS_OVERLAP_BEHIND:
*pDStt = *pREnd;
break;
}
}
else if( *pDEnd <= *pRStt )
break;
}
}
if( pDestRedl )
{
SwUndoCompDoc* pUndo = pDoc->DoesUndo() ? new SwUndoCompDoc( *pDestRedl ) : 0;
if( pDoc->AppendRedline( pDestRedl ) )
{
++nIns;
if( pUndo )
(pDoc->*pFn)( pUndo );
}
else
delete pUndo;
}
return nIns;
}
// merge zweier Dokumente
long SwDoc::MergeDoc( const SwDoc& rDoc )
{
if( &rDoc == this )
return 0;
long nRet = 0;
StartUndo();
SwDoc& rSrcDoc = (SwDoc&)rDoc;
BOOL bSrcModified = rSrcDoc.IsModified();
SwRedlineMode eSrcRedlMode = rSrcDoc.GetRedlineMode();
rSrcDoc.SetRedlineMode( REDLINE_SHOW_DELETE );
SetRedlineMode( REDLINE_SHOW_DELETE );
SwCompareData aD0( rSrcDoc );
SwCompareData aD1( *this );
aD1.CompareLines( aD0 );
if( !aD1.HasDiffs( aD0 ) )
{
// jetzt wollen wir alle Redlines aus dem SourceDoc zu uns bekommen
// suche alle Insert - Redlines aus dem SourceDoc und bestimme
// deren Position im DestDoc
_SaveMergeRedlines* pRing = 0;
const SwRedlineTbl& rSrcRedlTbl = rSrcDoc.GetRedlineTbl();
ULONG nEndOfExtra = rSrcDoc.GetNodes().GetEndOfExtras().GetIndex();
ULONG nMyEndOfExtra = GetNodes().GetEndOfExtras().GetIndex();
for( USHORT n = 0; n < rSrcRedlTbl.Count(); ++n )
{
const SwRedline* pRedl = rSrcRedlTbl[ n ];
ULONG nNd = pRedl->GetPoint()->nNode.GetIndex();
SwRedlineType eType = pRedl->GetType();
if( nEndOfExtra < nNd &&
( REDLINE_INSERT == eType || REDLINE_DELETE == eType ))
{
const SwNode* pDstNd = GetNodes()[
nMyEndOfExtra + nNd - nEndOfExtra ];
// Position gefunden. Dann muss im DestDoc auch
// in der Line das Redline eingefuegt werden
_SaveMergeRedlines* pTmp = new _SaveMergeRedlines(
*pDstNd, *pRedl, pRing );
if( !pRing )
pRing = pTmp;
}
}
if( pRing )
{
// dann alle ins DestDoc ueber nehmen
rSrcDoc.SetRedlineMode( REDLINE_SHOW_INSERT | REDLINE_SHOW_DELETE );
SetRedlineMode( REDLINE_ON | REDLINE_SHOW_INSERT | REDLINE_SHOW_DELETE );
_SaveMergeRedlines* pTmp = pRing;
do {
nRet += pTmp->InsertRedline( &SwDoc::AppendUndo );
} while( pRing != ( pTmp = (_SaveMergeRedlines*)pTmp->GetNext() ));
while( pRing != pRing->GetNext() )
delete pRing->GetNext();
delete pRing;
}
}
rSrcDoc.SetRedlineMode( eSrcRedlMode );
if( !bSrcModified )
rSrcDoc.ResetModified();
SetRedlineMode( REDLINE_SHOW_INSERT | REDLINE_SHOW_DELETE );
EndUndo();
return nRet;
}