#ifndef _PORT_MODEL_H
#define _PORT_MODEL_H

#include <QAbstractItemModel>

class PortGroupList;
class PortGroup;

class PortModel : public QAbstractItemModel
{
    Q_OBJECT

    friend class PortGroupList;

    PortGroupList    *pgl;

    public:
        PortModel(PortGroupList *p, QObject *parent = 0);

        int rowCount(const QModelIndex &parent = QModelIndex()) const;
        int columnCount(const QModelIndex &parent = QModelIndex()) const;
        Qt::ItemFlags flags(const QModelIndex &index) const;
        QVariant data(const QModelIndex &index, int role) const;
        QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
        QModelIndex index (int row, int col, const QModelIndex & parent = QModelIndex() ) const;
        QModelIndex parent(const QModelIndex &index) const;    

        bool isPortGroup(const QModelIndex& index);
        bool isPort(const QModelIndex& index);
        quint32 portGroupId(const QModelIndex& index);
        quint32 portId(const QModelIndex& index);


private slots:
    void when_portGroupDataChanged(int portGroupId, int portId);

    void portGroupAboutToBeAppended();
    void portGroupAppended();
    void portGroupAboutToBeRemoved(PortGroup *portGroup);
    void portGroupRemoved();

    void when_portListChanged();

#if 0
    void triggerLayoutAboutToBeChanged();
    void triggerLayoutChanged();
#endif

};

#endif