[sugar] hiding a gtk.widget without unmapping it

[Erik Blankinship]

> have you considered making the widget insensitive?


Good suggestion, although making widgets insensitive does not make them
invisible.


> Also, try explaining what you want to do, perhaps there are alternative
> approaches to your problem.


I would like to make a panel of widgets disappear when they are not needed
in my ui, but without causing the layout manager to mess up the surrounding
layout.

Other possible solutions:
Maybe I can use something like a tabbed panel (without showing the tabs)?

Overwrite the widget's paint methods, and use my own "visible" flag when I
want them to appear with a queue_draw().
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