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/***************************************************************************
* Copyright (C) 2005-2014 by the Quassel Project *
* devel@quassel-irc.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) version 3. *
* *
* 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 _SELECTIONMODELSYNCHRONIZER_H_
#define _SELECTIONMODELSYNCHRONIZER_H_
#include <QObject>
#include <QItemSelectionModel>
class QAbstractItemModel;
class SelectionModelSynchronizer : public QObject
{
Q_OBJECT
public:
SelectionModelSynchronizer(QAbstractItemModel *parent = 0);
void synchronizeSelectionModel(QItemSelectionModel *selectionModel);
void removeSelectionModel(QItemSelectionModel *selectionModel);
inline QAbstractItemModel *model() { return _model; }
inline QItemSelectionModel *selectionModel() const { return const_cast<QItemSelectionModel *>(&_selectionModel); }
inline QModelIndex currentIndex() const { return _selectionModel.currentIndex(); }
inline QItemSelection currentSelection() const { return _selectionModel.selection(); }
private slots:
void syncedCurrentChanged(const QModelIndex ¤t, const QModelIndex &previous);
void syncedSelectionChanged(const QItemSelection &selected, const QItemSelection &previous);
void setCurrentIndex(const QModelIndex &index);
void setCurrentSelection(const QItemSelection &selection);
void currentChanged(const QModelIndex ¤t, const QModelIndex &previous);
void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
void selectionModelDestroyed(QObject *object);
private:
QAbstractItemModel *_model;
QItemSelectionModel _selectionModel;
bool _changeCurrentEnabled;
bool _changeSelectionEnabled;
bool checkBaseModel(QItemSelectionModel *model);
QModelIndex mapFromSource(const QModelIndex &sourceIndex, const QItemSelectionModel *selectionModel);
QItemSelection mapSelectionFromSource(const QItemSelection &sourceSelection, const QItemSelectionModel *selectionModel);
QModelIndex mapToSource(const QModelIndex &index, QItemSelectionModel *selectionModel);
QItemSelection mapSelectionToSource(const QItemSelection &selection, QItemSelectionModel *selectionModel);
QSet<QItemSelectionModel *> _selectionModels;
};
#endif
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