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/***************************************************************************
diffhunk.cpp - description
-------------------
begin : Sun Mar 4 2001
copyright : (C) 2001-2003 by Otto Bruggeman
and John Firebaugh
email : otto.bruggeman@home.nl
jfirebaugh@kde.org
****************************************************************************/
/***************************************************************************
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
***************************************************************************/
#include "difference.h"
#include "diffhunk.h"
using namespace Diff2;
DiffHunk::DiffHunk( int sourceLine, int destinationLine, QString function, Type type ) :
m_sourceLine( sourceLine ),
m_destinationLine( destinationLine ),
m_function( function ),
m_type( type )
{
}
DiffHunk::~DiffHunk()
{
}
void DiffHunk::add( Difference* diff )
{
m_differences.append( diff );
}
int DiffHunk::sourceLineCount() const
{
DifferenceListConstIterator diffIt = m_differences.begin();
DifferenceListConstIterator dEnd = m_differences.end();
int lineCount = 0;
for ( ; diffIt != dEnd; ++diffIt )
lineCount += (*diffIt)->sourceLineCount();
return lineCount;
}
int DiffHunk::destinationLineCount() const
{
DifferenceListConstIterator diffIt = m_differences.begin();
DifferenceListConstIterator dEnd = m_differences.end();
int lineCount = 0;
for ( ; diffIt != dEnd; ++diffIt )
lineCount += (*diffIt)->destinationLineCount();
return lineCount;
}
QString DiffHunk::recreateHunk() const
{
QString hunk;
QString differences;
// recreate body
DifferenceListConstIterator diffIt = m_differences.begin();
DifferenceListConstIterator dEnd = m_differences.end();
int slc = 0; // source line count
int dlc = 0; // destination line count
for ( ; diffIt != dEnd; ++diffIt )
{
switch ( (*diffIt)->type() )
{
case Difference::Unchanged:
case Difference::Change:
slc += (*diffIt)->sourceLineCount();
dlc += (*diffIt)->destinationLineCount();
break;
case Difference::Insert:
dlc += (*diffIt)->destinationLineCount();
break;
case Difference::Delete:
slc += (*diffIt)->sourceLineCount();
break;
}
differences += (*diffIt)->recreateDifference();
}
// recreate header
hunk += QString::fromLatin1( "@@ -%1,%3 +%2,%4 @@" )
.arg( m_sourceLine )
.arg( m_destinationLine )
.arg( slc )
.arg( dlc );
if ( !m_function.isEmpty() )
hunk += " " + m_function;
hunk += QString::fromLatin1( "\n" );
hunk += differences;
kdDebug( 8101 ) << hunk << endl;
return hunk;
}
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