Computes whether a container should give this widget extra space
when possible. Containers should check this, rather than
looking at Widget.getHexpand or Widget.getVexpand.
This function already checks whether the widget is visible, so
visibility does not need to be checked separately. Non-visible
widgets are not expanded.
The computed expand value uses either the expand setting explicitly
set on the widget itself, or, if none has been explicitly set,
the widget may expand if some of its children do.
Computes whether a container should give this widget extra space when possible. Containers should check this, rather than looking at Widget.getHexpand or Widget.getVexpand.
This function already checks whether the widget is visible, so visibility does not need to be checked separately. Non-visible widgets are not expanded.
The computed expand value uses either the expand setting explicitly set on the widget itself, or, if none has been explicitly set, the widget may expand if some of its children do.