What is a snit::widgetadaptor?
A snit::widgetadaptor is a kind of snit::widget. Whereas a snit::widget’s hull is automatically created and is always a Tk frame, a snit::widgetadaptor can be based on any Tk widget–or on any Snit megawidget, or even (with luck) on megawidgets defined using some other package. It’s called a widget adaptor because it allows you to take an existing widget and customize its behavior.
