flattenfiltermodel.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#pragma once
 
#include <QAbstractItemModel>
#include "modelsconfig.h"
 
namespace LC::Util
{
    class UTIL_MODELS_API FlattenFilterModel : public QAbstractItemModel
    {
    protected:
        QAbstractItemModel *Source_ = nullptr;
        QList<QPersistentModelIndex> SourceIndexes_;
    public:
        using QAbstractItemModel::QAbstractItemModel;

        QModelIndex index (int, int, const QModelIndex& = {}) const override;

        QModelIndex parent (const QModelIndex&) const override;

        int rowCount (const QModelIndex& parent = {}) const override;

        int columnCount (const QModelIndex& parent = {}) const override;

        QVariant data (const QModelIndex& index, int role = Qt::DisplayRole) const override;

        void SetSource (QAbstractItemModel *model);
    protected:
        virtual bool IsIndexAccepted (const QModelIndex& index) const;
    private:
        void HandleDataChanged (const QModelIndex&, const QModelIndex&);
        void HandleRowsInserted (const QModelIndex&, int, int);
        void HandleRowsAboutRemoved (const QModelIndex&, int, int);
    };
}