jwo.utils.gui
Class PNGHandler

java.lang.Object
  jwo.utils.gui.PNGHandler

All Implemented Interfaces:

ImageHandler

public class PNGHandler
extends Object
implements ImageHandler

Saves images in PNG format. This is largely a wrapper around the standard Java PNG image saving functionality. Implements the ImageHandler interface so it can be substituted with other formats.

Version:

2.3, 10th August, 2004.

Author:

Jo Wood.

Constructor Summary

PNGHandler()
Initialises the image handler.

Method Summary

boolean	saveImage(String fileName, byte[] imageArray, int imgWidth, int imgHeight) Saves the given array of 24 bit colours as a file with the given name and dimensions.
boolean	saveImage(String fileName, Image image) Saves the given image as a PNG file with the given name.

Methods inherited from class java.lang.Object

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

Constructor Detail

PNGHandler

public PNGHandler()

Initialises the image handler.

Method Detail

saveImage

public boolean saveImage(String fileName,
                         Image image)

Saves the given image as a PNG file with the given name.

Specified by:

saveImage in interface ImageHandler

Parameters:

fileName - Name of file to save.

image - Image to save.

Returns:

True if saved correctly, or false if problems saving.

saveImage

public boolean saveImage(String fileName,
                         byte[] imageArray,
                         int imgWidth,
                         int imgHeight)

Saves the given array of 24 bit colours as a file with the given name and dimensions.

Specified by:

saveImage in interface ImageHandler

Parameters:

fileName - Name of image file to save.

imageArray - BGR colours stored in byte array (3 bytes per colour).

imgWidth - Width of image to save.

imgHeight - Height of image to save.

Returns:

True if saved correctly, or false if problems saving.