Package org.pentaho.reporting.libraries.base.encoder

Class JpegImageEncoder

java.lang.Object

org.pentaho.reporting.libraries.base.encoder.JpegImageEncoder

All Implemented Interfaces:

ImageEncoder

public class JpegImageEncoder
extends Object
implements ImageEncoder

Constructor Summary

Constructors

Constructor	Description
JpegImageEncoder()

Method Summary

Modifier and Type	Method	Description
void	encodeImage(Image image, OutputStream outputStream)
void	encodeImage(Image image, OutputStream outputStream, float quality, boolean encodeAlpha)	Encodes the given image using the given encoder-specific quality and alpha-channel settings and writes the encoded image-data to the given stream.
String	getMimeType()	Returns the mime-type of the encoded data.
static boolean	isJpegEncodingAvailable()

Methods inherited from class java.lang.Object

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

Constructor Detail

JpegImageEncoder

public JpegImageEncoder()

Method Detail

encodeImage

public void encodeImage(Image image,
                        OutputStream outputStream,
                        float quality,
                        boolean encodeAlpha)
                 throws IOException,
                        UnsupportedEncoderException

Description copied from interface: ImageEncoder

Encodes the given image using the given encoder-specific quality and alpha-channel settings and writes the encoded image-data to the given stream.

Specified by:

encodeImage in interface ImageEncoder

Parameters:

image - the image to be encoded.

outputStream - the output stream, where to write the image data to.

quality - the quality of the encoding.

encodeAlpha - a flag controlling whether the alpha-channel should be encoded as well.

Throws:

IOException - if there was an IO error while generating or writing the image data.

UnsupportedEncoderException - if the encoder is not supported.

encodeImage

public void encodeImage(Image image,
                        OutputStream outputStream)
                 throws IOException,
                        UnsupportedEncoderException

Throws:

IOException

UnsupportedEncoderException

getMimeType

public String getMimeType()

Description copied from interface: ImageEncoder

Returns the mime-type of the encoded data.

Specified by:

getMimeType in interface ImageEncoder

Returns:

the mime-type.

isJpegEncodingAvailable

public static boolean isJpegEncodingAvailable()