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/*
This file is part of libkdepim.
Copyright (c) 2004 Tobias Koenig <tokoe@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef DIFFALGO_H
#define DIFFALGO_H
#include <tqvaluelist.h>
#include <kdepimmacros.h>
namespace KPIM {
/**
DiffAlgo and DiffAlgoDisplay work together for displaying differences between
two PIM objects like contacts, events or todos.
DiffAlgo is the bas class for the diffing algorithm and DiffAlgoDisplay is
responsible for representation. The separation makes it possible to use one
display for all diffing algorithm and vice versa.
*/
class DiffAlgoDisplay
{
public:
/**
Is called on the start of the diff.
*/
virtual void begin() = 0;
/**
Is called on the end of the diff.
*/
virtual void end() = 0;
/**
Sets the title of the left data source.
*/
virtual void setLeftSourceTitle( const TQString &title ) = 0;
/**
Sets the title of the right data source.
*/
virtual void setRightSourceTitle( const TQString &title ) = 0;
/**
Adds a field which is only available in the left data source.
*/
virtual void additionalLeftField( const TQString &id, const TQString &value ) = 0;
/**
Adds a field which is only available in the right data source.
*/
virtual void additionalRightField( const TQString &id, const TQString &value ) = 0;
/**
Adds a conflict between two fields.
*/
virtual void conflictField( const TQString &id, const TQString &leftValue,
const TQString &rightValue ) = 0;
};
class KDE_EXPORT DiffAlgo
{
public:
/**
Destructor.
*/
virtual ~DiffAlgo() {}
/**
Starts the diffing algorithm.
*/
virtual void run() = 0;
/**
Must be called on the start of the diff.
*/
void begin();
/**
Must be called on the end of the diff.
*/
void end();
/**
Sets the title of the left data source.
*/
void setLeftSourceTitle( const TQString &title );
/**
Sets the title of the right data source.
*/
void setRightSourceTitle( const TQString &title );
/**
Adds a field which is only available in the left data source.
*/
void additionalLeftField( const TQString &id, const TQString &value );
/**
Adds a field which is only available in the right data source.
*/
void additionalRightField( const TQString &id, const TQString &value );
/**
Adds a conflict between two fields.
*/
void conflictField( const TQString &id, const TQString &leftValue,
const TQString &rightValue );
void addDisplay( DiffAlgoDisplay *display );
void removeDisplay( DiffAlgoDisplay *display );
private:
TQValueList<DiffAlgoDisplay*> mDisplays;
};
}
#endif
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