AWT BOF

Engineering Manager: Lara Bunni

Engineering Team:

Brent Christian

Hania Gajewska

Eric Hawkes

Michael Martak

Steve McGrath

Dave Mendenhall

Richard Ray

Lee Ann Rucker

Sun Microsystems Inc

Contents

• GetListeners

• Keyboard Focus

• Full Screen Mode

• Headless Mode

• Data Transfer Enhancements

• Mouse Wheel

• Undecorated Frames & Dialogs

• Frame State API

• Multiscreen

• Q&A

GetListeners Enhancements

• Improvement to getListeners() API

• As per changes to the Beans specification

• getFooListeners() to match addFooListener() and removeFooListener()

• Support for listeners with additional arguments

  • PropertyChangeListeners (property name arg)

  • AWTEventListeners (event mask arg)

• Used by long-term persistence API (JSR-057)

Keyboard Focus Enhancements

• Centralized focus management

  • New class java.awt.KeyboardFocusManager

  • Tracks all focus activity

  • Replaces javax.swing.FocusManager

• New class java.awt.FocusTraversalPolicy

  • Lighter-weight than javax.swing.DefaultFocusManager

  • Less error-prone than JComponent's setNextFocusableComponent

• Window/JWindow focus problems solved

Full Screen Mode

• Gives Java programs direct control of the screen

• Games

• Slide shows

• High-performance graphics

Headless Mode

• For environments without a display, mouse, or keyboard

• Web servers, Enterprise servers & printers

• Printing, 2D, Images still enabled

• Enabled in Sun's reference implementation by using a runtime flag: java -Djava.awt.headless=true

• Exception thrown in headless mode

  • java.awt.HeadlessException

• Thrown by some AWT, Swing methods when called in headless mode

Data Transfer Enhancements

• Clipboard and Drag and Drop on equal footing

• Text transfer greatly simplified

• Charsets and encodings are now transparent to most applications

• Image support (finally!)

• Better support for custom flavors

• Vastly improved stability

Mouse Wheel

• AWT and Swing are supported

• Scrolling behavior is default

• Existing apps work unmodified

• For custom behavior, use new interface:

  • java.awt.event.MouseWheelListener

Undecorated Frames & Dialogs

• Native decorations (e.g. Titlebar, borders) disabled

• New APIs for Frames/Dialogs

  • setUndecorated()

  • isUndecorated()

• Client can decorate or have Swing decorate

Frame State API

• Minimize, Maximize frames

  • java.awt.Frame.setExtendedState(...)

• Platform support detection

  • java.awt.Toolkit.isFrameStateAvailable(...)

• New WindowStateChanged event

  • java.awt.event.WindowStateListener

Improved Multiscreen Support

• Many bug fixes

  • Dragging between screens

  • Display settings changes

• Improved hardward acceleration support

• Xinerama-aware