sortedtreemodel.h 2.38 KB
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/***************************************************************************
**
** Copyright (C) 2015 Jochen Becher
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company.  For licensing terms and
** conditions see http://www.qt.io/terms-conditions.  For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights.  These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/

#ifndef QMT_SORTEDTREEMODEL_H
#define QMT_SORTEDTREEMODEL_H

#include <QSortFilterProxyModel>
#include "qmt/infrastructure/qmt_global.h"

#include <QTimer>

namespace qmt {

class TreeModel;

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class QMT_EXPORT SortedTreeModel : public QSortFilterProxyModel
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{
    Q_OBJECT

public:
    explicit SortedTreeModel(QObject *parent = 0);
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    ~SortedTreeModel() override;
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    TreeModel *treeModel() const { return m_treeModel; }
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    void setTreeModel(TreeModel *treeModel);
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protected:
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    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
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private:
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    void onTreeModelRowsInserted(const QModelIndex &parent, int start, int end);
    void onDataChanged(const QModelIndex &, const QModelIndex &, const QVector<int> &);
    void onDelayedSortTimeout();

    void startDelayedSortTimer();

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    TreeModel *m_treeModel;
    QTimer m_delayedSortTimer;
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};

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} // namespace qmt
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#endif // QMT_SORTEDTREEMODEL_H