summaryrefslogtreecommitdiffstats
path: root/examples/corelib/tools/contiguouscache/randomlistmodel.h
blob: 72a6e05f7c45e3c1da37981f0a51e269e6f904ea (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef RANDOMLISTMODEL_H
#define RANDOMLISTMODEL_H

#include <QContiguousCache>
#include <QAbstractListModel>

QT_FORWARD_DECLARE_CLASS(QTimer)

class RandomListModel : public QAbstractListModel
{
    Q_OBJECT
public:
    RandomListModel(QObject *parent = nullptr);
    ~RandomListModel();

    int rowCount(const QModelIndex & = QModelIndex()) const override;
    QVariant data(const QModelIndex &, int) const override;

private:
    void cacheRows(int, int) const;
    QString fetchRow(int) const;

    mutable QContiguousCache<QString> m_rows;
    const int m_count;
};

#endif