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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitbd9e6617827818fd043452c08c606f07b78014a0 (patch)
tree425bb4c3168f9c02f10150f235d2cb998dcc6108 /kompare/libdiff2/difference.cpp
downloadtdesdk-bd9e6617827818fd043452c08c606f07b78014a0.tar.gz
tdesdk-bd9e6617827818fd043452c08c606f07b78014a0.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdesdk@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+ difference.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 "levenshteintable.h"
+
+using namespace Diff2;
+
+Difference::Difference( int sourceLineNo, int destinationLineNo, int type ) :
+ m_type( type ),
+ m_sourceLineNo( sourceLineNo ),
+ m_destinationLineNo( destinationLineNo ),
+ m_applied( false )
+{
+}
+
+Difference::~Difference()
+{
+}
+
+void Difference::addSourceLine( QString line )
+{
+ m_sourceLines.append( new DifferenceString( line ) );
+}
+
+void Difference::addDestinationLine( QString line )
+{
+ m_destinationLines.append( new DifferenceString( line ) );
+}
+
+int Difference::sourceLineCount() const
+{
+ return m_sourceLines.count();
+}
+
+int Difference::destinationLineCount() const
+{
+ return m_destinationLines.count();
+}
+
+void Difference::apply( bool apply )
+{
+ m_applied = apply;
+}
+
+void Difference::determineInlineDifferences()
+{
+ LevenshteinTable table;
+ if ( m_type != Difference::Change )
+ return;
+
+ // Do nothing for now when the slc != dlc
+ // One could try to find the closest matching destination string for any
+ // of the source strings but this is compute intensive
+ if ( sourceLineCount() != destinationLineCount() )
+ return;
+
+ int slc = sourceLineCount();
+
+ for ( int i = 0; i < slc; ++i )
+ {
+ DifferenceString* sl = sourceLineAt( i );
+ DifferenceString* dl = destinationLineAt( i );
+
+ // FIXME: If the table cant be created dont do the rest
+ table.createTable( sl, dl );
+
+ table.createListsOfMarkers();
+ }
+}
+
+QString Difference::recreateDifference() const
+{
+ QString difference;
+
+ // source
+ DifferenceStringListConstIterator stringIt = m_sourceLines.begin();
+ DifferenceStringListConstIterator sEnd = m_sourceLines.end();
+
+ for ( ; stringIt != sEnd; ++stringIt )
+ {
+ switch ( m_type )
+ {
+ case Change:
+ case Delete:
+ difference += "-";
+ break;
+ default:
+ // Insert but this is not possible in source
+ // Unchanged will be handled in destination
+ // since they are the same
+// kdDebug( 8101 ) << "Go away, nothing to do for you in source..." << endl;
+ continue;
+ }
+ difference += (*stringIt)->string();
+ }
+
+ //destination
+ stringIt = m_destinationLines.begin();
+ sEnd = m_destinationLines.end();
+
+ for ( ; stringIt != sEnd; ++stringIt )
+ {
+ switch ( m_type )
+ {
+ case Change:
+ case Insert:
+ difference += "+";
+ break;
+ case Unchanged:
+ difference += " ";
+ break;
+ default: // Delete but this is not possible in destination
+// kdDebug( 8101 ) << "Go away, nothing to do for you in destination..." << endl;
+ continue;
+ }
+ difference += (*stringIt)->string();
+ }
+
+ return difference;
+}