qrangemodel.h

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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
 
#ifndef QRANGEMODEL_H
#define QRANGEMODEL_H
 
#include <QtCore/qrangemodel_impl.h>
 
QT_BEGIN_NAMESPACE
 
class QRangeModelPrivate;
 
class Q_CORE_EXPORT QRangeModel : public QAbstractItemModel
{
    Q_OBJECT
    Q_PROPERTY(QHash<int, QByteArray> roleNames READ roleNames WRITE setRoleNames RESET resetRoleNames
                                                NOTIFY roleNamesChanged FINAL)
 
public:
    enum class RowCategory {
        Default,
        MultiRoleItem,
    };
 
    template <typename T>
    struct RowOptions {};
 
    template <typename T>
    struct ItemAccess {};
 
    template <typename Range,
              QRangeModelDetails::if_table_range<Range> = true>
    explicit QRangeModel(Range &&range, QObject *parent = nullptr)
        : QRangeModel(new QGenericTableItemModelImpl<Range>(std::forward<Range>(range), this), parent)
    {}
 
    template <typename Range,
              QRangeModelDetails::if_tree_range<Range> = true>
    explicit QRangeModel(Range &&range, QObject *parent = nullptr)
        : QRangeModel(std::forward<Range>(range), QRangeModelDetails::DefaultTreeProtocol<Range>{},
                      parent)
    {}
 
    template <typename Range, typename Protocol,
              QRangeModelDetails::if_tree_range<Range, Protocol> = true>
    explicit QRangeModel(Range &&range, Protocol &&protocol, QObject *parent = nullptr)
        : QRangeModel(new QGenericTreeItemModelImpl<Range, Protocol>(std::forward<Range>(range),
                                                                     std::forward<Protocol>(protocol),
                                                                     this),
                     parent)
    {}
 
    ~QRangeModel() override;
 
    QModelIndex index(int row, int column, const QModelIndex &parent = {}) const final;
    QModelIndex parent(const QModelIndex &child) const final;
    QModelIndex sibling(int row, int column, const QModelIndex &index) const final;
    int rowCount(const QModelIndex &parent = {}) const final;
    int columnCount(const QModelIndex &parent = {}) const final;
    Qt::ItemFlags flags(const QModelIndex &index) const override;
    QVariant headerData(int section, Qt::Orientation orientation,
                        int role = Qt::DisplayRole) const override;
    bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &data,
                       int role = Qt::EditRole) override;
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
    bool setData(const QModelIndex &index, const QVariant &data, int role = Qt::EditRole) override;
    QMap<int, QVariant> itemData(const QModelIndex &index) const override;
    bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &data) override;
    bool clearItemData(const QModelIndex &index) override;
    bool insertColumns(int column, int count, const QModelIndex &parent = {}) final;
    bool removeColumns(int column, int count, const QModelIndex &parent = {}) final;
    bool moveColumns(const QModelIndex &sourceParent, int sourceColumn, int count,
                     const QModelIndex &destParent, int destColumn) final;
    bool insertRows(int row, int count, const QModelIndex &parent = {}) final;
    bool removeRows(int row, int count, const QModelIndex &parent = {}) final;
    bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count,
                  const QModelIndex &destParent, int destRow) final;
 
    QHash<int, QByteArray> roleNames() const override;
    void setRoleNames(const QHash<int, QByteArray> &names);
    void resetRoleNames();
 
    bool canFetchMore(const QModelIndex &parent) const override;
    void fetchMore(const QModelIndex &parent) override;
 
    bool hasChildren(const QModelIndex &parent = QModelIndex()) const final;
    QModelIndex buddy(const QModelIndex &index) const override;
    bool canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column,
                         const QModelIndex &parent) const override;
    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column,
                      const QModelIndex &parent) override;
    QMimeData *mimeData(const QModelIndexList &indexes) const override;
    QStringList mimeTypes() const override;
    QModelIndexList match(const QModelIndex &start, int role, const QVariant &value, int hits,
                          Qt::MatchFlags flags) const override;
    void multiData(const QModelIndex &index, QModelRoleDataSpan roleDataSpan) const override;
    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder) override;
    QSize span(const QModelIndex &index) const override;
    Qt::DropActions supportedDragActions() const override;
    Qt::DropActions supportedDropActions() const override;
 
Q_SIGNALS:
    void roleNamesChanged();
 
protected Q_SLOTS:
    void resetInternalData() override;
 
protected:
    bool event(QEvent *) override;
    bool eventFilter(QObject *, QEvent *) override;
 
private:
    Q_DISABLE_COPY_MOVE(QRangeModel)
    Q_DECLARE_PRIVATE(QRangeModel)
 
    explicit QRangeModel(QRangeModelImplBase *impl, QObject *parent);
    friend class QRangeModelImplBase;
};
 
// implementation of forwarders
QModelIndex QRangeModelImplBase::createIndex(int row, int column, const void *ptr) const
{
    return m_rangeModel->createIndex(row, column, ptr);
}
void QRangeModelImplBase::changePersistentIndexList(const QModelIndexList &from,
                                                          const QModelIndexList &to)
{
    m_rangeModel->changePersistentIndexList(from, to);
}
void QRangeModelImplBase::dataChanged(const QModelIndex &from, const QModelIndex &to,
                                            const QList<int> &roles)
{
    m_rangeModel->dataChanged(from, to, roles);
}
void QRangeModelImplBase::beginInsertColumns(const QModelIndex &parent, int start, int count)
{
    m_rangeModel->beginInsertColumns(parent, start, count);
}
void QRangeModelImplBase::endInsertColumns()
{
    m_rangeModel->endInsertColumns();
}
void QRangeModelImplBase::beginRemoveColumns(const QModelIndex &parent, int start, int count)
{
    m_rangeModel->beginRemoveColumns(parent, start, count);
}
void QRangeModelImplBase::endRemoveColumns()
{
    m_rangeModel->endRemoveColumns();
}
bool QRangeModelImplBase::beginMoveColumns(const QModelIndex &sourceParent, int sourceFirst,
                                                 int sourceLast, const QModelIndex &destParent,
                                                 int destColumn)
{
    return m_rangeModel->beginMoveColumns(sourceParent, sourceFirst, sourceLast,
                                         destParent, destColumn);
}
void QRangeModelImplBase::endMoveColumns()
{
    m_rangeModel->endMoveColumns();
}
 
void QRangeModelImplBase::beginInsertRows(const QModelIndex &parent, int start, int count)
{
    m_rangeModel->beginInsertRows(parent, start, count);
}
void QRangeModelImplBase::endInsertRows()
{
    m_rangeModel->endInsertRows();
}
void QRangeModelImplBase::beginRemoveRows(const QModelIndex &parent, int start, int count)
{
    m_rangeModel->beginRemoveRows(parent, start, count);
}
void QRangeModelImplBase::endRemoveRows()
{
    m_rangeModel->endRemoveRows();
}
bool QRangeModelImplBase::beginMoveRows(const QModelIndex &sourceParent, int sourceFirst,
                                              int sourceLast,
                                              const QModelIndex &destParent, int destRow)
{
    return m_rangeModel->beginMoveRows(sourceParent, sourceFirst, sourceLast, destParent, destRow);
}
void QRangeModelImplBase::endMoveRows()
{
    m_rangeModel->endMoveRows();
}
QAbstractItemModel &QRangeModelImplBase::itemModel()
{
    return *m_rangeModel;
}
const QAbstractItemModel &QRangeModelImplBase::itemModel() const
{
    return *m_rangeModel;
}
 
// Helper templates that we can forward declare in the _impl header,
// where QRangeModel is not yet defined.
namespace QRangeModelDetails
{
template <typename T>
struct QRangeModelRowOptions : QRangeModel::RowOptions<T> {};
 
template <typename T>
struct QRangeModelItemAccess : QRangeModel::ItemAccess<T> {};
}
 
QT_END_NAMESPACE
 
 
#endif // QRANGEMODEL_H