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qlimitproxymodelqml.h
/*
* Copyright (C) 2012, 2013 Canonical Ltd.
*
* 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; 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef QLIMITPROXYMODELQML_H
#define QLIMITPROXYMODELQML_H
#include <QIdentityProxyModel>
class QLimitProxyModelQML : public QIdentityProxyModel
{
Q_OBJECT
Q_PROPERTY(QAbstractItemModel* model READ sourceModel WRITE setModel NOTIFY modelChanged)
Q_PROPERTY(int limit READ limit WRITE setLimit NOTIFY limitChanged)
Q_PROPERTY(int count READ rowCount NOTIFY countChanged)
public:
explicit QLimitProxyModelQML(QObject *parent = 0);
/* getters */
int limit() const;
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
QHash<int, QByteArray> roleNames() const override;
/* setters */
void setModel(QAbstractItemModel *model);
void setLimit(int limit);
Q_SIGNALS:
void limitChanged();
void totalCountChanged();
void countChanged();
void modelChanged();
private Q_SLOTS:
void sourceRowsAboutToBeInserted(const QModelIndex &parent, int start, int end);
void sourceRowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
void sourceRowsInserted(const QModelIndex &parent, int start, int end);
void sourceRowsRemoved(const QModelIndex &parent, int start, int end);
private:
int m_limit;
bool m_sourceInserting;
bool m_sourceRemoving;
int m_dataChangedBegin;
int m_dataChangedEnd;
};
#endif // QLIMITPROXYMODELQML_H