[Interest] Place a QWidget below a button (and follow it!)

[william.crocker at analog.com]

>
> In details, I have a widget that will display a floating window when the
> user clicks on a QToolButton. This floating widget must be placed below
> the button that summoned its soul, and if the main window moves, the
> floating window must be positioned in the same place.
>

Reimplement the moveEvent of the main window
(which has the tool button as a child.)
In it, reevaluate the position of the child
tool button (to be tracked) and move the
floating window as required.

Converting widget positions in and out of the
global coordinate system will come in handy.

Bill