[PyQt] Newbie: get one of several QDockWidgets to perform action on

[Hans Meine]

Am Dienstag 05 Oktober 2010, 13:42:45 schrieb Knacktus:
> I think I need to identify the QDockWidget, which had focus when I
> pressed the button. I've tried the following approaches:
> 
> 1) qApp.hasFocus() in my "expand_all()" method --> didn't work, gives
> the focus of the button I pressed

Right, so in the moment you press the button, it first gets focus.  Makes 
sense.  You can still add QActions with shortcuts in order to expand a 
specific treeview, but this is too late to get the focus.

So either you follow Hans-Peters suggestion and remember which of the 
treeviews *last* had the focus, or you add one such button into every 
dockwidget.

Looking from even farther away, you might also expand the views by default, or 
add the above-mentioned actions to the dock widgets' (or treeviews') context 
menus.  (BTW: this is particularly easy with dockWidget.addAction(...) 
dockWidget.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu).)

HTH,
  Hans