How to limit signal propagation?

["Daniel Haude" <dunno stoptrick com>]

Hello,

now I that I goy my custom widget working, of course there are more  
questions.

This widget has no less than five adjustments associated with it -- the  
widget lets the user select a rectangular region from a large square area;  
the rectangle has a center point, a width, a height, and it can be  
rotated. These five parameters are also reflected onto five spinbuttons.

As the user drags and rotates the rectangle with the mouse, the widget  
keeps emitting "value_changed" signals to the five adjustments so that the  
spinbuttons' contents are continuously updated. Of course the  
"value_changed" signals are also reflected back into the widget's five  
callbacks, each of which initiates the recalculation of the rectangle's  
corners' coordinates and a re-draw of the window. That's five redraws  
where one will do.

I tried to make the redraw of the widget dependent on a flag set and unset  
by enter and leave events, but that doesn't work when the user activates  
the spinbuttons by keyboard while leaving the pointer inside my widget.

Suggestions, anyone?

--Daniel