org.hccp.util
Class ImageWriter

java.lang.Object
  |
  +--org.hccp.util.ImageWriter

public class ImageWriter

extends java.lang.Object

A utility for writing image formats to output streams in GIF and JPEG encodings. This class currently has an external dependency on the ACME Labs GIFEncoder.

Field Summary

static int	GIF
static int	JPEG

Constructor Summary

ImageWriter()

Method Summary

static void	writeAsGif(java.awt.Image img, java.io.OutputStream os) encodes a java.awt.Image on the submitted java.io.OutputStream as a GIF.
static void	writeAsJpeg(java.awt.Image img, java.io.OutputStream os) encodes a java.awt.image.BufferedImage on the submitted java.io.OutputStream as a JPEG.
static void	writeImageToFile(java.awt.Image img, java.io.File f) Writes image to file of type JPEG or GIF based upon the filename extension of file.
static void	writeImageToFile(java.awt.Image img, java.io.File f, int encoding) Writes image to file of type JPEG or GIF.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

GIF

public static final int GIF

See Also:

Constant Field Values

JPEG

public static final int JPEG

See Also:

Constant Field Values

Constructor Detail

ImageWriter

public ImageWriter()

Method Detail

writeImageToFile

public static void writeImageToFile(java.awt.Image img,
                                    java.io.File f)
                             throws java.io.IOException

Writes image to file of type JPEG or GIF based upon the filename extension of file. Allows the following extensions in upper, lower, or mixed case: 'GIF', 'JPEG', and 'JPG'

Parameters:

img - the java.awt.Image instance to be encoded. For JPEG encoding this object must be an instance of java.awt.image.BufferedImage

f - the File to which this graph will be written to

Throws:

java.io.IOException

writeImageToFile

public static void writeImageToFile(java.awt.Image img,
                                    java.io.File f,
                                    int encoding)
                             throws java.io.IOException

Writes image to file of type JPEG or GIF.

Parameters:

img - the java.awt.Image instance to be encoded. For JPEG encoding this object must be an instance of java.awt.image.BufferedImage

f - the File to which this graph will be written to

encoding - an integer specifying the encoding for the target file. Available formats: GIF, JPEG

Throws:

java.io.IOException

See Also:

GIF, JPEG

writeAsGif

public static void writeAsGif(java.awt.Image img,
                              java.io.OutputStream os)
                       throws java.io.IOException

encodes a java.awt.Image on the submitted java.io.OutputStream as a GIF. Currently uses the the ACME Labs GIFEncoder.

Parameters:

img -

os -

Throws:

java.io.IOException

writeAsJpeg

public static void writeAsJpeg(java.awt.Image img,
                               java.io.OutputStream os)
                        throws java.io.IOException

encodes a java.awt.image.BufferedImage on the submitted java.io.OutputStream as a JPEG.

Parameters:

img - must be an instance of java.awt.image.BufferedImage

os -

Throws:

java.io.IOException