Graphical User Interface (GUI)

Graphical User Interface (GUI)

1. interaction channel between the user and system

   • Within interaction
     • inactive
     • active
       • Options

2. Example: The View

   • Main Container: the Frame
     • Keys:
       • Minimize, close, Move
     • Methods:
       • setSize(width, height)
       • setResizable(boolean input)
       • setDefaultCloseOperation(EXIT_ON_CLOSE)
       • setVisible(boolean input)
       • add(GUI component)
   • Contains: buttons, labels, images, etc
   • Container: Panels
     • use GUI elements
     • Groups elements based on purpose

3. containers: creating groups

4. Layouts: order

   • setLayout(...);
     • BorderLayout: based on compass rose
       • setLayout( new BorderLayout());
       • five elements
       • add(GUI component, BorderLayout.NORTH);
     • GridLayout: Matrix
       • setLayout(new GridLayout(rows, colunms));
       • add(GuI component);

5. Messages' Management

   • Error
   • Warning
   • info

6. Data Input

   • use InputDialog