[Qt-interest] changeSize()ing a QSpacerItem

[Paul England]

Hi

I've got an app which has multiple QWidgets in it.  Specifically, a 
QVBoxLayout w/ some QLineEdits, QLabels, a QSpacerItem, and a 
QTableWidget.  That's actually only part of it.  The place the 
QTableWidget "resides" depends on another QTableWidget outside of this 
QVBoxLayout.  I calculate the size the spacer should be based on values 
in the geometry of both QTableWidgets, and the geometry of the 
QVBoxLayout, then run changeSize() on the QSpacerItem to move it 
accordingly. 

The problem comes when I have a routine that changes the size of all the 
Widgets (font size change, for example).  I change the size of the fonts 
for everything, then I calculate how big the QSpacerItem should be and 
changeSize() it.  Problem is, it never calculates the size of the 
QVBoxLayout properly.  It only does once I resize the application 
(forcing a repaint).  I've tried a QTimer as well, but if I don't resize 
the main GUI before the QTimer expires, then QSpacerItem will not change 
size.  The only way this works is if I do a really, really ghetto hack 
and resize the main GUI widget (by say, a pixel) each time the font 
sizes are changed.  That would work, but is way ugly.

Is there something I'm missing here?  I'm running invalidate() after the 
resize as well, but am getting nothing.

I have seen this thread from a while ago (same thing) but no reply. :(
http://lists.trolltech.com/qt-interest/2005-03/thread01408-0.html

Thanks