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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++
++ //
++ // W A R N I N G
++ // -------------
++ //
++ // This file is not part of the QtGraphs API. It exists purely as an
++ // implementation detail. This header file may change from version to
++ // version without notice, or even be removed.
++ //
++ // We mean it.
++
++ #ifndef ABSTRACTITEMMODELHANDLER_P_H
++ #define ABSTRACTITEMMODELHANDLER_P_H
++
++ #include <QtGraphs/private/qgraphsglobal_p.h>
++ #include <QtCore/QAbstractItemModel>
++ #include <QtCore/QPointer>
++ #include <QtCore/QTimer>
++
++ QT_BEGIN_NAMESPACE
++
++ class AbstractItemModelHandler : public QObject
++ {
++ Q_OBJECT
++ public:
++ AbstractItemModelHandler(QObject *parent = 0);
++ ~AbstractItemModelHandler() override;
++
++ virtual void setItemModel(QAbstractItemModel *itemModel);
++ virtual QAbstractItemModel *itemModel() const;
++
++ public Q_SLOTS:
++ virtual void handleColumnsInserted(const QModelIndex &parent, int start, int end);
++ virtual void handleColumnsMoved(const QModelIndex &sourceParent,
++ int sourceStart,
++ int sourceEnd,
++ const QModelIndex &destinationParent,
++ int destinationColumn);
++ virtual void handleColumnsRemoved(const QModelIndex &parent, int start, int end);
++ virtual void handleDataChanged(const QModelIndex &topLeft,
++ const QModelIndex &bottomRight,
++ const QList<int> &roles = QList<int>());
++ virtual void handleLayoutChanged(
++ const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(),
++ QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint);
++ virtual void handleModelReset();
++ virtual void handleRowsInserted(const QModelIndex &parent, int start, int end);
++ virtual void handleRowsMoved(const QModelIndex &sourceParent,
++ int sourceStart,
++ int sourceEnd,
++ const QModelIndex &destinationParent,
++ int destinationRow);
++ virtual void handleRowsRemoved(const QModelIndex &parent, int start, int end);
++
++ virtual void handleMappingChanged();
++ virtual void handlePendingResolve();
++
++ Q_SIGNALS:
++ void itemModelChanged(const QAbstractItemModel *itemModel);
++
++ protected:
++ virtual void resolveModel() = 0;
++
++ QPointer<QAbstractItemModel> m_itemModel; // Not owned
++ bool resolvePending;
++ QTimer m_resolveTimer;
++ bool m_fullReset;
++ const int noRoleIndex = -1;
++
++ private:
++ Q_DISABLE_COPY(AbstractItemModelHandler)
++ };
++
++ QT_END_NAMESPACE
++
++ #endif