public class

SunPNGEncoderAdapter

extends Object
implements ImageEncoder
java.lang.Object
   ↳ org.jfree.chart.encoders.SunPNGEncoderAdapter

Class Overview

Adapter class for the Sun PNG Encoder. The ImageEncoderFactory will only return a reference to this class by default if the library has been compiled under a JDK 1.4+ and is being run using a JDK 1.4+.

Summary

Public Constructors
SunPNGEncoderAdapter()
Public Methods
byte[] encode(BufferedImage bufferedImage)
Encodes an image in PNG format.
void encode(BufferedImage bufferedImage, OutputStream outputStream)
Encodes an image in PNG format and writes it to an OutputStream.
float getQuality()
Get the quality of the image encoding (always 0.0).
boolean isEncodingAlpha()
Get whether the encoder should encode alpha transparency (always false).
void setEncodingAlpha(boolean encodingAlpha)
Set whether the encoder should encode alpha transparency (not supported in this ImageEncoder).
void setQuality(float quality)
Set the quality of the image encoding (not supported in this ImageEncoder).
[Expand]
Inherited Methods
From class java.lang.Object
From interface org.jfree.chart.encoders.ImageEncoder

Public Constructors

public SunPNGEncoderAdapter ()

Public Methods

public byte[] encode (BufferedImage bufferedImage)

Encodes an image in PNG format.

Parameters
bufferedImage The image to be encoded.
Returns
  • The byte[] that is the encoded image.
Throws
IOException

public void encode (BufferedImage bufferedImage, OutputStream outputStream)

Encodes an image in PNG format and writes it to an OutputStream.

Parameters
bufferedImage The image to be encoded.
outputStream The OutputStream to write the encoded image to.
Throws
IOException

public float getQuality ()

Get the quality of the image encoding (always 0.0).

Returns
  • A float representing the quality.

public boolean isEncodingAlpha ()

Get whether the encoder should encode alpha transparency (always false).

Returns
  • Whether the encoder is encoding alpha transparency.

public void setEncodingAlpha (boolean encodingAlpha)

Set whether the encoder should encode alpha transparency (not supported in this ImageEncoder).

Parameters
encodingAlpha Whether the encoder should encode alpha transparency.

public void setQuality (float quality)

Set the quality of the image encoding (not supported in this ImageEncoder).

Parameters
quality A float representing the quality.