What’s New in Java™ Client Technology?

The J2SE™ Platform on the Client

• Mature

• In-production

  • Small shops to Global 2000

• Sun continues to invest

  • Java HotSpot™ client VM
  • AWT, JFC API, 2D, I18N, Accessibility
  • Deployment
    • Java™ Plug-In software, Java Web Start software

The J2SE Platform Today

• J2SE 1.3.1 platform shipping now

  • Several client fixes

• J2SE 1.4 platform beta shipping now

  • Rich Clients for Web Services
  • More GUI performance
  • Unicode 3.0
  • Mouse Wheel support!
  • Java Web Start software

Agenda

• Enhancements to AWT

  • Eric Hawkes, AWT Engineer

• Rounding out the JFC/Swing API

  • Scott Violet, Swing Engineer

• Richer and Faster Graphics

  • Phil Race, Java 2D Engineer

• Improving Internationalization

  • Brian Beck, Internationalization Engineer

What’s New in AWT?

Overview of New AWT Features

• New Focus Architecture (AWT and JFC/Swing)

• Full Screen Mode

• Headless Mode

• Drag & Drop Enhancements

• Mouse Wheel Support

• Undecorated and Client-Decorated Frames

• And more!

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

Focus Enhancements (Cont.)

• Window/JWindow focus problems solved

• Go to the Focus Session for details

  • TS-1315, “Focus on Focus” Wed., 11:00am, Moscone, Yerba Buena

Full Screen Mode

• Gives Java technology-based programs direct control of the screen

  • Games
  • Slide shows
  • High-performance graphics

• Go to the High-Performance Graphics session for more details

  • TS-1314, “High Performance Graphics” Tues., 4:00pm, Moscone, Hall B

Headless Mode

• For environments without a display, mouse, or keyboard

  • Web servers
  • Enterprise servers
  • Printers

• Printing, 2D, Images still enabled

Headless (Cont.)

• 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, JFC/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 JFC/Swing API are supported

• Scrolling behavior is default

• Existing apps work unmodified

• For custom behavior, use new interface:

  • java.awt.event.MouseWheelListener

Undecorated Frames

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

• New APIs for Frames/Dialogs

  • setUndecorated()
  • isUndecorated()

Client-Decorated Frames

• Client code decorates an Undecorated Frame

• Swing PLAF can provide decorations so top-level JFrames/JDialogs look like child components

• New APIs for JFrames/JDialogs

  • setDefaultLookAndFeelDecorated()

AWT Summary

• Other features

  • JAWT (native interface)
  • Dynamic Layout during Resize
  • GetListeners()

• Many bug fixes

• Go to the AWT BOF for more details

Related Information

• TS-1314, “High Performance Graphics” Tues., 4:00pm, Moscone, Hall B

• TS-1315, “Focus on Focus” Wed., 11:00am, Moscone, Yerba Buena

• BOF-2800, “AWT BOF” Wed., 8:00pm, Argent, Metro Ballroom II

What’s New in the Java™ Foundation Classes (JFCSwing) API?

Overview of New JFC/Swing API Features

• JFC/Swing specific Drag and Drop API

• Indeterminate JProgressBar

• Windows Look and Feel enhancements

• JFileChooser improvements

• Scrollable tabs in JTabbedPane

• JSpinner and JFormattedTextField

• Numerous minor API additions to existing classes

Drag And Drop

• Drag support for JTree, JList, JTable, JColorChooser, JFileChooser, JTextComponent

  • setDragEnabled(true);

• Drop support for JTextComponent

Custom TransferHandler

• TransferHandler property on JComponent

  • Maps model data to Transferable

Indeterminate JProgressBar

Windows Look And Feel

• Emulation determined from OS

• Numerous minor improvements

  • Fonts picked up from desktop
  • Rollover
  • Pixel tweaking
  • Spacing
  • Mnemonics
  • Sounds

1.3 Windows Look And Feel

1.4 Windows Look And Feel

1.4 Windows Look and Feel II

JFileChooser Update

JFileChooser Update II

JFileChooser Update III

JFileChooser Update IV

Scrollable JTabbedPane

JSpinner And JFormattedTextField

• JSpinner

  • Numbers
  • Dates
  • Sets of Objects

• JFormattedTextField

  • Numbers
  • Dates
  • Mask specifying legal data

JSpinner And JFormattedTextField

Related Information

• TS-2734, “Rich Clients for Web Services” Mon., 3:30pm, Moscone, Hall B Tues., 11:00am, Moscone, Hall B

• BOF-1325, “JFC/Swing API BOF” Wed., 7:00pm, Argent, Metro Ballroom II

• BOF-1334, “Beans BOF” Wed., 10:00pm, Argent, Metro Ballroom III

• The JFC/Swing API Connection:

  • http://java.sun.com/products/jfc/tsc

What’s New in the Java 2D™ API?

What’s New in the Java 2D API?

• Java Print Service API

• Image I/O API

• Graphics Performance improvements

• Text and font enhancements

Printing Enhancements: Java™ Print Service API

• New javax.print package

  • Core part of Java 2 SDK

• Java Community ProcessSM initiative: JSR-06

• API derives from work on JiniTM printing API

  • (no Jini dependencies)

• Integrates tightly with Java 2DTM printing API

  • (java.awt.print.PrinterJob)

Printing Enhancements: Java Print Service API (Cont.)

• Adds missing printing APIs to the platform

  • To enumerate printers
  • To specify how and where to print a job
  • To describe printer and its capabilities using Attributes

• Uses IPP/1.1 model for printing attributes and job submission

• Can export graphics as a document

  • E.g., for web publishing

Printing Enhancements: Java Print Service API (Cont.)

• Stream Print Services

  • Can export Java 2D API-based graphics as a document. e.g., for web publishing

• Service Provider Interface for plugging in non-platform native printer support

• Attributes for specifying 2-sided printing, media sizes, color, resolution, collation etc.

• “DocFlavors” for describing print data, e.g., text, html, images

Printing Enhancements: Java Print Service API (Cont.)

• Supports server (headless) printing as well as client printing

• New cross-platform (JFC/Swing API) print and page setup dialogs

• More information:

  • TS-595, “Java Platform Printing” Wed, 4:00pm, Moscone, Hall B

Image I/O API

• New core API in Merlin for reading and writing sampled images

  • E.g., JPEG, PNG reading and writing support is part of core standard
  • javax.imageio packages

• JCP—JSR-15 expert group

Image I/O API (Cont.)

• Key features

  • Integrates with Java 2D image APIs
  • Supports image reading, writing, transcoding
  • Supports access to image metadata
  • Support for advanced applications
  • Support for server image reading and writing
  • Pluggable architecture

Image I/O API (Cont.)

• Designed for casual use by non image-oriented applications as well as more sophisticated packages

• E.g., simple API for reading images

  • ImageIO.read(<image source>);
  • Automatically recognizes image format based on file name or image data and invokes suitable image reader plug-in

Image I/O API (Cont.)

• Metadata

  • Access to non-pixel data in images
    • E.g., compression scheme, color space, transparency info, text annotations etc.
  • Important for reading and transcoding images with minimal loss
  • Metadata structures may be complex and format-specific
  • Represented using XML DOM tree
    • Standard format for interchange

Image I/O API (Cont.)

• Pluggable architecture

  • Many image formats exist
    • Impossible to support all
  • Developers can create their own image format plug-ins
  • Support image reading and/or writing
  • Install in JRE or at runtime
  • Automatic discovery by the API

Image I/O API (Cont.)

• More information

  • TS-600, “The Java Image I/O API” Tues., 2:45pm, Sheraton, Grand Ballroom
  • BOF-601, “The Java Image I/O API BOF” Tues., 7:00pm, Marriott, Salon 1-2
  • JCP Website http://java.sun.com/aboutJava/ communityprocess/review/jsr015/index.html
  • J2SETM SDK 1.4 documentation

Graphics Performance

• New VolatileImage interface

  • Created in accelerated memory (VRAM)
  • Accelerates copies and fills
  • Good for back buffers
  • Used internally by JFC/Swing API in 1.4

Graphics Performance (Cont.)

• Acceleration of legacy image APIs

  • Component.createImage(w,h)
  • Toolkit.getImage()
  • internally created and managed as accelerated VRAM image
  • good for images that are updated infrequently (e.g. sprites)

Graphics Performance (Cont.)

• Other performance improvements

  • Internal re-architecture of Java 2D technology
    • Greatly reduces overhead for typical apps
  • New “remote X” surfaces
    • Improve performance of JFC/Swing API “1.1” image operations

Graphics Performance (Cont.)

• More information

  • TS-1314, “High Performance Graphics” Tues., 4:00pm, Moscone, Hall B
  • BOF-1328, “Java 2D API BOF” Thurs., 7:00pm, Marriott, Salon 12-13

Text and Font Enhancements

• OpenType font support

  • Thai and Hindi text display
  • Contributed by IBM

• TrueType rasteriser supports hinting

• Fonts shipped with SDK updated with hints and additional glyphs

What’s New in Internationalization?

Overview of New Features

• Unicode 3.0

• Thai Support

• Hindi Support

• Input Method Enhancements

• Other Improvements

Thai Support

• Thai script

• Dictionary based word breaking

• Collation handles Thai reordering

• Buddhist Calendar

• Formatting: dates, numbers, currency

Hindi Support

• Devanagari script

• Devanagari input method

• Hindi formats: date, numbers, currency

• Partial support for 8 additional Indic scripts

Input Method Enhancements

• Persistent input method preference

• Input method hot key support

• Focus management improvements

Other Improvements

• Expanded localization

  • Messages translated to 10 languages

• Historical Time Zone data

• Expanded Component Orientation support

• Access to Unicode bidirectional algorithm

  • java.text.Bidi

• New character converter API / SPI

Related Information

• TS-1320, “The Complete Client”, Tues., 12:15pm, Moscone, Hall B

• BOF-1336, “Internationalization Q&A” Thurs., 8:00pm, Marriott, Salon 12-13

• TS-2448, “New I/O APIs” Mon., 6:00pm, Moscone, Hall A

• BOF-2461, “New I/O APIs Q&A” Wed., 7:00pm, Argent, Metro Ballroom II

Summary

• Improved Performance

• Richer Toolkit

  • Mouse Wheel
  • Richer printing APIs
  • Expanded internationalization

• Serious bugs addressed

  • Focus rearchitecture
  • Remote X hosting close to local performance
  • DnD really works!