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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QAbstractTableModel>
#include <QSet>
class TestTableModel : public QAbstractTableModel
{
Q_OBJECT
Q_PROPERTY(int rowCount READ rowCount WRITE setRowCount NOTIFY rowCountChanged)
Q_PROPERTY(int columnCount READ columnCount WRITE setColumnCount NOTIFY columnCountChanged)
public:
TestTableModel(QObject *parent = nullptr) : QAbstractTableModel(parent) { }
int rowCount(const QModelIndex & = QModelIndex()) const override { return m_rows; }
void setRowCount(int count) { beginResetModel(); m_rows = count; emit rowCountChanged(); endResetModel(); }
int columnCount(const QModelIndex & = QModelIndex()) const override { return m_cols; }
void setColumnCount(int count) { beginResetModel(); m_cols = count; emit columnCountChanged(); endResetModel(); }
int indexValue(const QModelIndex &index) const
{
return index.row() + (index.column() * rowCount());
}
QVariant data(const QModelIndex &index, int role) const override
{
if (!index.isValid())
return QVariant();
switch (role) {
case Qt::DisplayRole:
return QString("%1, %2").arg(index.column()).arg(index.row());
case Qt::CheckStateRole:
return m_checkedCells.contains(indexValue(index));
default:
return QVariant();
}
return QVariant();
}
bool setData(const QModelIndex &index, const QVariant &value,
int role = Qt::EditRole) override
{
if (role != Qt::CheckStateRole)
return false;
int i = indexValue(index);
bool checked = value.toBool();
if (checked == m_checkedCells.contains(i))
return false;
if (checked)
m_checkedCells.insert(i);
else
m_checkedCells.remove(i);
emit dataChanged(index, index, {role});
return true;
}
QHash<int, QByteArray> roleNames() const override
{
return {
{Qt::DisplayRole, "display"},
{Qt::CheckStateRole, "checked"}
};
}
signals:
void rowCountChanged();
void columnCountChanged();
private:
int m_rows = 0;
int m_cols = 0;
QSet<int> m_checkedCells;
};
int main(int argc, char *argv[])
{
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication app(argc, argv);
qmlRegisterType<TestTableModel>("TestTableModel", 0, 1, "TestTableModel");
QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
return app.exec();
}
#include "main.moc"
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