org.zkoss.image.encoder

Interface ImageEncoder

All Known Implementing Classes:

JPEGEncoder, PNGEncoder

public interface ImageEncoder

Represents an image encoder used to encode an AWT image into a particular format, such as PNG.

Since:

3.0.7

Author:

tomyeh

See Also:

ImageEncoders.newInstance(java.lang.String), ImageEncoders.setEncoderClass(java.lang.String, java.lang.Class)

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	encode(java.awt.image.RenderedImage image) Encodes an AWT image into a byte array in a particular format.
float	getQuality() Return the quality of the image encoding.
boolean	isEncodingAlpha() Returns whether to encode the alpha transparency.
void	setEncodingAlpha(boolean encodeAlpha) Sets whether to encode the alpha transparency.
void	setQuality(float quality) Sets the quality of the image encoding.

Method Detail

encode

byte[] encode(java.awt.image.RenderedImage image)
              throws java.io.IOException

Encodes an AWT image into a byte array in a particular format.

Throws:

java.io.IOException

getQuality

float getQuality()

Return the quality of the image encoding.

setQuality

void setQuality(float quality)

Sets the quality of the image encoding. Simply does nothing if the encoder does not support it.

isEncodingAlpha

boolean isEncodingAlpha()

Returns whether to encode the alpha transparency.

setEncodingAlpha

void setEncodingAlpha(boolean encodeAlpha)

Sets whether to encode the alpha transparency. Simply does nothing if the encoder does not support it.