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// Copyright (C) 2026 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef DELEGATECHOOSERMODEL_H
#define DELEGATECHOOSERMODEL_H
#include <QtCore/QtCore>
#include <QtGui/QStandardItemModel>
#include <array>
class DelegateChooserModel : public QAbstractTableModel
{
Q_OBJECT
public:
enum Role {
ChoiceRole = Qt::UserRole,
Choice0DataRole,
Choice1DataRole,
};
DelegateChooserModel(int rows, int columns, QObject *parent = nullptr) : QAbstractTableModel(parent), m_rows(rows), m_columns(columns)
{
}
int rowCount(const QModelIndex &parent) const override { return parent.isValid() ? 0 : m_rows; }
int columnCount(const QModelIndex &parent) const override { return parent.isValid() ? 0 : m_columns; }
QHash<int, QByteArray> roleNames() const override
{
using namespace Qt::StringLiterals;
return {
{ Qt::DisplayRole, "display"_ba },
{ ChoiceRole, "choice"_ba },
{ Choice0DataRole, "choice0Data"_ba },
{ Choice1DataRole, "choice1Data"_ba },
};
}
QVariant data(const QModelIndex &index, int role) const override
{
using namespace Qt::StringLiterals;
QVariant ret;
if (!index.isValid()) {
return ret;
}
switch (role) {
case Qt::DisplayRole:
ret = m_choice ? u"Text"_s : u"Rectangle"_s;
break;
case ChoiceRole:
ret = m_choice;
break;
case Choice0DataRole:
ret = QColor{ Qt::red };
break;
case Choice1DataRole:
ret = u"Text"_s;
break;
}
return ret;
}
Q_INVOKABLE void switchChoice()
{
if (m_choice) {
m_choice = 0;
} else {
m_choice = 1;
}
m_choice_delegates_count.fill(0);
Q_EMIT dataChanged(index(0, 0), index(m_rows - 1, m_columns - 1), { ChoiceRole });
}
Q_INVOKABLE void delegate_created(int choice) { ++m_choice_delegates_count.at(static_cast<unsigned>(choice)); }
const std::array<int, 2> &choice_delegates_count() const { return m_choice_delegates_count; }
private:
int m_rows;
int m_columns;
int m_choice{ };
std::array<int, 2> m_choice_delegates_count{ };
};
#endif