Editable labels on QwtScaleDraw

[CarstenS]

Hi,

my user wants to change the boundaries of the axis by editing the labels itself. Idea is to overlay a QLineEdit or QSpinBox for this purpose (I found no way to edit the labels themselves, maybe I'm wrong here?). For the overlay I need the coordinates of the labels in the coordinate system of QwtScaleDraw. How can I compute them? Or is there another possibility to edit the labels directly on the axis (providing some QLineEdits elsewhere in the application didn't satisfy the user).

Best regards,
Carsten