amenitysortfilterproxymodel.h

/*
    SPDX-FileCopyrightText: 2023 Volker Krause <vkrause@kde.org>
    SPDX-License-Identifier: LGPL-2.0-or-later
*/
 
#ifndef KOSMINDOORMAP_AMENITYSORTFILTERMODEL_H
#define KOSMINDOORMAP_AMENITYSORTFILTERMODEL_H
 
#include <QCollator>
#include <QSortFilterProxyModel>
 
namespace KOSMIndoorMap {
 
/** Filtering/sorting on top of the AmenityModel.
 *  - filters on all visible roles
 *  - sorts while keeping the grouping intact
 */
class AmenitySortFilterProxyModel : public QSortFilterProxyModel
{
    Q_OBJECT
    Q_PROPERTY(QString filterString MEMBER m_filter NOTIFY filterStringChanged)
 
public:
    explicit AmenitySortFilterProxyModel(QObject *parent = nullptr);
    ~AmenitySortFilterProxyModel();
 
Q_SIGNALS:
    void filterStringChanged();
 
protected:
    [[nodiscard]] bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;
    [[nodiscard]] bool lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const override;
 
private:
    bool filterMatches(const QString &s) const;
 
    QCollator m_collator;
    QString m_filter;
};
 
}
 
#endif