modelinvariantrowmapper.h

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/******************************************************************************
 *
 *  Copyright 2008 Szymon Tomasz Stefanek <pragma@kvirc.net>
 *
 *  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.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *******************************************************************************/

#ifndef __MESSAGELIST_CORE_MODELINVARIANTROWMAPPER_H__
#define __MESSAGELIST_CORE_MODELINVARIANTROWMAPPER_H__

#include <QHash>
#include <QList>

#include <messagelist/core/modelinvariantindex.h>
#include <messagelist/messagelist_export.h>

class QTimer;

namespace MessageList
{

namespace Core
{

class ModelInvariantRowMapper;
class ModelInvariantRowMapperPrivate;
class RowShift;

class MESSAGELIST_EXPORT ModelInvariantRowMapper : public QObject
{
  friend class ModelInvariantIndex;

  Q_OBJECT

public:
  explicit ModelInvariantRowMapper();
  virtual ~ModelInvariantRowMapper();

  void setLazyUpdateChunkInterval( int chunkInterval );

  void setLazyUpdateIdleInterval( int idleInterval );

  int modelInvariantIndexToModelIndexRow( ModelInvariantIndex * invariant );

  void createModelInvariantIndex( int modelIndexRow, ModelInvariantIndex * invariantToFill );

  ModelInvariantIndex * modelIndexRowToModelInvariantIndex( int modelIndexRow );

  QList< ModelInvariantIndex * > * modelIndexRowRangeToModelInvariantIndexList( int startIndexRow, int count );

  void modelRowsInserted( int modelIndexRowPosition, int count );

  QList< ModelInvariantIndex * > * modelRowsRemoved( int modelIndexRowPosition, int count );

  void modelReset();

private:
  Q_PRIVATE_SLOT(d, void slotPerformLazyUpdate())

  ModelInvariantRowMapperPrivate * const d;
};

} // namespace Core

} // namespace MessageList


#endif