User Interface Framework
Apple Dylan includes a user interface framework, written in Dylan by Mike Lockwood. The framework is tightly integrated with a WYSIWYG interface builder code-named Meccano, written by Robin Mair. The interface builder is linked into an application, allowing users to switch between Edit and Run modes while the application is running. “Decorators” are represented as graphical objects that can be dragged onto a user interface object to modify its behavior or appearance via object composition.
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