Using a QML model from a QDeclarativeItem subclass

[humbleguru]

Hi! I'm creating a QDeclarativeItem subclass:

class MyGraphic : public QDeclarativeItem
{
    Q_OBJECT
    Q_PROPERTY(????? model READ model SET model)
 
public:
    MyGraphic(QDeclarativeItem *parent = 0);
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
    ...
};

class MyGraphic : public QDeclarativeItem
{
    Q_OBJECT
    Q_PROPERTY(????? model READ model SET model)

public:
    MyGraphic(QDeclarativeItem *parent = 0);
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
    ...
};

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I would like to use it in QML like this:

Rectangle {
    ListModel {
        id: mymodel
        ListElement { type: "Oranges"; amount: 35 }
        ListElement { type: "Apples"; amount: 27 }
        ListElement { type: "Peaches"; amount: 12 }
    }
 
    MyGraphic {
        width: 300; height: 200
        model: mymodel
    }
}

Rectangle {
    ListModel {
        id: mymodel
        ListElement { type: "Oranges"; amount: 35 }
        ListElement { type: "Apples"; amount: 27 }
        ListElement { type: "Peaches"; amount: 12 }
    }

    MyGraphic {
        width: 300; height: 200
        model: mymodel
    }
}

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There are plenty of examples on how to make a C++ model available in the QML world but I have found nothing on how to access a QML model from C++.

How can I access mymodel from MyGraphic (the C++ class)? Should I use QAbstractItemModel* directly in the Q_PROPERTY?

I mean something like:

void MyGraphic::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
    QString type = model->data(...);    // model would be "mymodel" from QML
    int amount = model->data(...);
    // paint a graphic using the "type" and "amount" variables
}

void MyGraphic::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
    QString type = model->data(...);    // model would be "mymodel" from QML
    int amount = model->data(...);
    // paint a graphic using the "type" and "amount" variables
}

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