Custom plot selection

[SeanM]

Thanks Uwe, that's essentially what I did for the drawing part, although in drawRubberband() I had created a new case for the combination of VLineRubberBand and a QwtPickerDragRectMachine. In my head, I was thinking of the selection more in the VLineRubberBand sense since I wanted the full vertical range of the plot, but your suggestion actually does seem more consistent since I really am selecting a rectangle.

I hadn't stumbled across QwtPlotZoneItem yet so I'll check that out. The name of that class just didn't trigger that it would apply.

[Uwe]

The name of that class just didn't trigger that it would apply.

What would be a better one ?

Uwe

[SeanM]

I don't necessarily think there's a better name for it, now that you've pointed me at it and I know it exists, I think it's aptly named for what it does. I think I was thinking in too narrow of a context so I was looking for some sort of QwtSelectionXXX class, and didn't really wonder what else it could be called.

In a more general sense, I think I was more expecting that the Qwt*Picker classes would have some sort of a keepVisible(bool) flag, which would indicate whether the selected area should remain visibly selected until the next selection sequence starts, since they're already doing the painting for creating the selection. Once I determined that wasn't the case, I just wasn't sure where to go next. And I didn't see any of the examples show either a selection where the selected area was filled with a QBrush, nor did I find an example where the selection visual was retained after the mouseReleaseEvent.