File indexing completed on 2024-05-05 03:56:41

 /*
     SPDX-FileCopyrightText: 2019 Arjen Hiemstra <ahiemstra@heimr.nl>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef KCOLUMNHEADERSMODEL_H
 #define KCOLUMNHEADERSMODEL_H
 
 #include "kitemmodels_export.h"
 
 #include <QAbstractListModel>
 
 #include <memory>
 
 class KColumnHeadersModelPrivate;
 
 /**
  * A model that converts a model's headers into a list model.
  *
  * This model will expose the source model's headers as a simple list. This is
  * mostly useful as a helper for QML applications that want to display a model's
  * headers.
  *
  * Each columns's header will be presented as a row in this model. Roles are
  * forwarded directly to the source model's headerData() method.
  *
  * @since 5.66
  */
 class KITEMMODELS_EXPORT KColumnHeadersModel : public QAbstractListModel
 {
     Q_OBJECT
     Q_PROPERTY(QAbstractItemModel *sourceModel READ sourceModel WRITE setSourceModel NOTIFY sourceModelChanged)
     Q_PROPERTY(int sortColumn READ sortColumn WRITE setSortColumn NOTIFY sortColumnChanged)
     Q_PROPERTY(Qt::SortOrder sortOrder READ sortOrder WRITE setSortOrder NOTIFY sortOrderChanged)
 
 public:
     enum ExtraRoles { SortRole = 0x011D910E };
     Q_ENUM(ExtraRoles)
 
     explicit KColumnHeadersModel(QObject *parent = nullptr);
     ~KColumnHeadersModel() override;
 
     int rowCount(const QModelIndex &parent = QModelIndex()) const override;
     QVariant data(const QModelIndex &index, int role) const override;
     QHash<int, QByteArray> roleNames() const override;
 
     QAbstractItemModel *sourceModel() const;
     void setSourceModel(QAbstractItemModel *newSourceModel);
 
     int sortColumn() const;
     void setSortColumn(int newSortColumn);
 
     Qt::SortOrder sortOrder() const;
     void setSortOrder(Qt::SortOrder newSortOrder);
 
 Q_SIGNALS:
     void sourceModelChanged();
     void sortColumnChanged();
     void sortOrderChanged();
 
 private:
     void onLayoutAboutToBeChanged(const QList<QPersistentModelIndex> &parents, QAbstractItemModel::LayoutChangeHint hint);
     void onLayoutChanged(const QList<QPersistentModelIndex> &parents, QAbstractItemModel::LayoutChangeHint hint);
 
     const std::unique_ptr<KColumnHeadersModelPrivate> d;
 };
 
 #endif