example application

OverlayUnidraw is a library that extends the Unidraw framework in several ways -- double-buffered rendering, a spatial object save/restore mechanism (with attributes), improved export/import, multiple-views with optional pan/zoom chaining, fixed size graphics, etc..

OverlayComp extends the GraphicComp class of Unidraw with extra mechanisms for serialization and graphics rendering.

Here is a list of the more important derived classes and what they do:

overall framework objects

generic graphic objects

specific graphic objects

specific graphic objects with arrowheads

tools and dialog boxes

viewer commands

graphic commands

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