[wxPython-users] FlexGridSizer not resizing custom control

[Robin Dunn]

Jeffrey Barish wrote:
> I am trying to create a custom control that simply draws a stretchable
> horizontal line.  When I put the control in a horizontal BoxSizer, the line
> stretches when the window resizes to fill the space available, as it
> should.  When I put the control in a growable column of a FlexGridSizer,
> the line does not stretch.  I'm probably doing something wrong with the
> FlexGridSizer, which I have never used before, but maybe I've done
> something wrong in the custom control even though it works correctly with
> the BoxSizer.  With the FlexGridSizer, the growable column grows as it
> should, but the ClientSize for the custom control does not change.  The
> ClientSize does change when I use the control with the BoxSizer.
> 

You need to tell the sizer that you want the item to expand to fill the 
space it is given.  With the box sizer you used a proportion=1, which 
means that the item should share all extra space in the same direction 
that the sizer is (wx.HORIZONTAL in this case) with any other 
proportional items.  The grid sizers don't use the proportions 
currently, but you can tell it to fully expand the item using the flags 
parameter.

             sizer.Add(StretchLine(self), 0, wx.EXPAND)


-- 
Robin Dunn
Software Craftsman
http://wxPython.org  Java give you jitters?  Relax with wxPython!