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unity8/plugins/Utils/qlimitproxymodelqml.h
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1/*
2 * Copyright (C) 2012, 2013 Canonical, Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
17#ifndef QLIMITPROXYMODELQML_H
18#define QLIMITPROXYMODELQML_H
20#include <QIdentityProxyModel>
22class QLimitProxyModelQML : public QIdentityProxyModel
24 Q_OBJECT
26 Q_PROPERTY(QAbstractItemModel* model READ sourceModel WRITE setModel NOTIFY modelChanged)
27 Q_PROPERTY(int limit READ limit WRITE setLimit NOTIFY limitChanged)
28 Q_PROPERTY(int count READ rowCount NOTIFY countChanged)
30public:
31 explicit QLimitProxyModelQML(QObject *parent = 0);
33 /* getters */
34 int limit() const;
35 int rowCount(const QModelIndex &parent = QModelIndex()) const;
36 QHash<int, QByteArray> roleNames() const;
38 /* setters */
39 void setModel(QAbstractItemModel *model);
40 void setLimit(int limit);
42Q_SIGNALS:
43 void limitChanged();
44 void totalCountChanged();
45 void countChanged();
46 void modelChanged();
48private Q_SLOTS:
49 void sourceRowsAboutToBeInserted(const QModelIndex &parent, int start, int end);
50 void sourceRowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
51 void sourceRowsInserted(const QModelIndex &parent, int start, int end);
52 void sourceRowsRemoved(const QModelIndex &parent, int start, int end);
54private:
55 int m_limit;
56 bool m_sourceInserting;
57 bool m_sourceRemoving;
58 int m_dataChangedBegin;
59 int m_dataChangedEnd;
60};
62#endif // QLIMITPROXYMODELQML_H