Java Foundation Classes in a Nutshell

object retur ned by the getOutline() or getGlyphOutline() method of Glyph-

Vector can be used in the same way that you use any other Shape object. Use the

draw() method of Graphics2D to draw the outline of the glyph or glyphs. Use

fill() to fill the glyphs with an arbitrary Paint.You can transform the glyph

shapes by scaling, rotating, and skewing them and you can even use them to per-

for m clipping and hit detection.

Buffered Images

Java 2D introduces a new java.awt.Image subclass, java.awt.image.BufferedIm-

age. BufferedImage repr esents image data that is present in memory, unlike Image,

which typically repr esents str eaming image data being transferred over a network.

Java 2D also provides powerful image-processing classes that operate on

BufferedImage objects and are much simpler to use than the ImageFilter class of

Java 1.0.

As we discussed at the beginning of the chapter, Java knows how to read images

in commonly used formats from files and URLs. You can use the

getImage()

method of either Applet() or Toolkit to retrieve an Image, but the image data

may not have been fully read when the method retur ns. If you want to ensure that

the image is fully loaded, you have to use a

java.awt.MediaTracker. Note also

that both of these methods retur nread-only

Image objects, rather than read/write

BufferedImage objects.

If you are writing a Swing application, an easy way to load an image is with the

javax.swing.ImageIcon ...