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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QAbstractTableModel>
#include <QDebug>
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#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;
}
virtual void setRowCount(int count)
{
beginResetModel();
m_rows = count;
emit rowCountChanged();
endResetModel();
}
int columnCount(const QModelIndex & = QModelIndex()) const override
{
return m_cols;
}
virtual void setColumnCount(int count)
{
beginResetModel();
m_cols = count;
emit columnCountChanged();
endResetModel();
}
int indexValue(const QModelIndex &index) const
{
return index.row() + (index.column() * rowCount());
}
Q_INVOKABLE QModelIndex toQModelIndex(int serialIndex)
{
return createIndex(serialIndex % rowCount(), serialIndex / rowCount());
}
Q_INVOKABLE QVariant data(int row, int col)
{
return data(createIndex(row, col), Qt::DisplayRole);
}
QVariant data(const QModelIndex &index, int role) const override
{
if (!index.isValid())
return QVariant();
switch (role) {
case Qt::DisplayRole:
return QLatin1String("Foo");
case Qt::EditRole:
return m_checkedCells.contains(indexValue(index));
default:
return QVariant();
}
}
bool setData(const QModelIndex &index, const QVariant &value,
int role = Qt::EditRole) override
{
if (role != Qt::EditRole)
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;
}
Q_INVOKABLE QHash<int, QByteArray> roleNames() const override
{
return {
{ Qt::DisplayRole, "display" },
{ Qt::EditRole, "edit" }
};
}
signals:
void rowCountChanged();
void columnCountChanged();
private:
int m_rows = 0;
int m_cols = 0;
QSet<int> m_checkedCells;
};
class TestTableModelWithHeader : public TestTableModel {
Q_OBJECT
public:
void setRowCount(int count) override
{
vData.resize(count);
TestTableModel::setRowCount(count);
}
void setColumnCount(int count) override
{
hData.resize(count);
TestTableModel::setColumnCount(count);
}
Q_INVOKABLE QVariant headerData(int section, Qt::Orientation orientation,
int role = Qt::DisplayRole) const override
{
const bool isHorizontal = orientation == Qt::Horizontal;
auto sectionCount = isHorizontal ? columnCount() : rowCount();
if (section < 0 || section >= sectionCount)
return QVariant();
switch (role) {
case Qt::DisplayRole:
return (isHorizontal ? QString::fromLatin1("Column %1") : QString::fromLatin1("Row %1")).arg(section);
case Qt::EditRole: {
auto &data = isHorizontal ? hData : vData;
return data[section].toString();
}
default:
return QVariant();
}
}
Q_INVOKABLE bool setHeaderData(int section, Qt::Orientation orientation,
const QVariant &value, int role = Qt::EditRole) override
{
qDebug() << Q_FUNC_INFO
<< "section:" << section
<< "orient:" << orientation
<< "value:" << value
<< "role:" << QAbstractItemModel::roleNames()[role];
auto sectionCount = orientation == Qt::Horizontal ? columnCount() : rowCount();
if (section < 0 || section >= sectionCount)
return false;
auto &data = orientation == Qt::Horizontal ? hData : vData;
data[section] = value;
emit headerDataChanged(orientation, section, section);
return true;
}
private:
QList<QVariant> hData, vData;
};
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
qmlRegisterType<TestTableModel>("TestTableModel", 0, 1, "TestTableModel");
qmlRegisterType<TestTableModelWithHeader>("TestTableModelWithHeader", 0, 1, "TestTableModelWithHeader");
QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
return app.exec();
}
#include "main.moc"
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