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Building Layouts


All Working Models initially consist of a single Empty Space. Parts are added to the Working Model by choosing them from the Object Palette and clicking them into an Empty Space using the mouse. Each of the Layout parts can hold multiple additional parts. Complex layouts can be achieved by nesting Layouts within other Layouts. In the following diagram, a Frame contains a Border Layout. In the northern part of the Border Layout is a Flow Layout. The Flow Layout is containing four other parts.

Once a part has been put into the Working Model it is alive and can respond to user interaction. The user can specify which types of events a part should respond to by selecting them in the part's Listeners page in its properties notebook.

Clicking any part with the mouse will also cause its properties notebook to appear in the Composer window. Some parts are difficult or impossible to click with the mouse. The properties notebooks for those parts can be viewed by choosing the part name from the part list at the top of the Composer window.


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