COMP 310 Spring 2010	Lec02: GUI Building, Designing Ballworld

GUI Building

Demo using Eclipse with Jigloo

• Making  a project
• Making a frame with a main() method
• Frame layouts: Border layout
• Dropping in
  • Panels
  • Buttons
  • Text fields
• Giving a button click behavior

Ballworld Design

• The separation of variant and invariant: 
• What is an abstract ball?
  • Methods
  • What about fields?   Does anyone on the outside care?
• Concrete ABall implementations
  • Union Design Pattern  (see also: http://cnx.org/content/m11796/latest/ )
• Animation technique
  • Timer
  • Observer-observable
  • Call-back lambdas
• Design as an Iterative Process
  • Never satisfied!
  • Moving towards Model-View-Controller

© 2010 by Stephen Wong