On Wed, 14 Mar 2001, George Young wrote:
> [gtk+-1.2.8, pygtk-0.6.6, python 2.1a2, linux]
> I have a bunch of widgets in a vbox inside a scrolledwindow.
> If a user clicks on button that makes it's widget open up much bigger(higher),
> the new content may extend below the bottom of the scrolled window.
>
> But the new content is what the user just asked for, so I need to force it
> to be visible by programatically adjusting the scrollbar.
>
> If the widget is bigger than the scrolledwin, then the top of the widget should be
> aligned to the top of the scrolledwin, else the bottom of the widget should be
> set to the bottom of the scrolledwin.
>
> I assume I need somehow to find the pixel location, within the parent vbox,
> of the bottom and top of the target widget and then fiddle the scrolledwin's
> vertical 'adjustment', but I have no idea how to do this...
Call the widget.get_allocation() method on the child. This will return an
(x, y, width, height) tuple. You can then use this to set the value of
the scrollbar's GtkAdjustment.
James.
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