maemo.org - Talk - [Help needed] SectionScroller QML and QList<QObject*>

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[Help needed] SectionScroller QML and QList<QObject*>

Hi,

I'd like to use QML SectionScroller with a QList<QObject*> based model.
My ListView's section configuration is:

Code:

section.criteria: ViewSection.FirstCharacter

section.property: "form0"

Where form0 property is valid and displayed in the view delegate

When the SectionScroller is inserted to the QML code, I'm getting an error:

Code:

.../com/nokia/meego/SectionScroller.qml:319: Error: cannot assign [undefined] to QString

What am I doing wrong? I'd prefer to avoid QAbstractListModel, as I think it'd be an overkill right there - the elements are like this:

Code:

class IrregularVerb : public QObject

{

    Q_OBJECT

    Q_PROPERTY(QString form0 READ getForm0 NOTIFY formChanged)

    Q_PROPERTY(QString form1 READ getForm1 NOTIFY formChanged)

    Q_PROPERTY(QString form2 READ getForm2 NOTIFY formChanged)

// internal stuff there

};

Thanks

Re: FastScroll/SectionScroller QML and QList<QObject*>

Updated the opening post

Re: [Help needed] SectionScroller QML and QList<QObject*>

You need a QAbstractListModel with the following implementations to be able to use section scrollers or fast scroll:

//the number of total items property...
Q_PROPERTY(int count READ rowCount)

//... and its read method implementation
Q_INVOKABLE int rowCount(const QModelIndex &parent = QModelIndex()) const;

//a get method
Q_INVOKABLE Element* get(int index)

If you think it's an overkill, you may set a class which emits the items in your list and a qml listmodel to capture them. If the items are a lot, hovewer, it will slow down a lot your UI thread.

In my opinion a correct QAbstractListModel is far better, it gives you more features and you can expand it at needs.