I have QwtPlot and QwtPlotPanner. I want to pan only horizontally so I call plotPanner->setAxisEnabled(QwtPlot::yLeft,false);

When I click with left button and move mouse, I can see the curve moving also vertically, while the scale of x axes don''t move. When I release left button all is updated, the curve is repainted correctly (panned only horizontally) and the x axes is updated too.
How can I make the curve moved only orizontally while I track it with mouse? And how can I make the x axes update continously while I move mouse, instead of when I release left button?

When I zoom the curve and the I try to pan, is animated only the portion of curve that is visible.
How can I make the curve repainted entirely?

thanks