com.jn.langx.ui.image.jepg.awt

类 JPEGImageDecoderImpl

java.lang.Object

com.jn.langx.ui.image.jepg.awt.JPEGImageDecoderImpl

所有已实现的接口:

JPEGImageDecoder

public class JPEGImageDecoderImpl
extends Object
implements JPEGImageDecoder

从以下版本开始:

4.3.8

构造器概要

构造器

构造器和说明
JPEGImageDecoderImpl(InputStream var1)
JPEGImageDecoderImpl(InputStream var1, JPEGDecodeParam var2)

方法概要

限定符和类型	方法和说明
BufferedImage	decodeAsBufferedImage() Decodes the current JPEG data stream.
Raster	decodeAsRaster() Decode the JPEG stream that was passed as part of construction.
InputStream	getInputStream() Get the input stream that decoding will occur from.
JPEGDecodeParam	getJPEGDecodeParam() Returns the JPEGDecodeParam object that resulted from the most recent decoding event.
void	setJPEGDecodeParam(JPEGDecodeParam var1) Sets the JPEGDecodeParam object used to determine the features of the decompression performed on the JPEG encoded data.

从类继承的方法 java.lang.Object

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

构造器详细资料

JPEGImageDecoderImpl

public JPEGImageDecoderImpl(InputStream var1)

JPEGImageDecoderImpl

public JPEGImageDecoderImpl(InputStream var1,
                            JPEGDecodeParam var2)

方法详细资料

getJPEGDecodeParam

public JPEGDecodeParam getJPEGDecodeParam()

从接口复制的说明: JPEGImageDecoder

Returns the JPEGDecodeParam object that resulted from the most recent decoding event.

指定者:

getJPEGDecodeParam 在接口中 JPEGImageDecoder

setJPEGDecodeParam

public void setJPEGDecodeParam(JPEGDecodeParam var1)

从接口复制的说明: JPEGImageDecoder

Sets the JPEGDecodeParam object used to determine the features of the decompression performed on the JPEG encoded data. This is ussually only needed for decoding abbreviated JPEG data streams.

指定者:

setJPEGDecodeParam 在接口中 JPEGImageDecoder

参数:

var1 - JPEGDecodeParam object

getInputStream

public InputStream getInputStream()

从接口复制的说明: JPEGImageDecoder

Get the input stream that decoding will occur from.

指定者:

getInputStream 在接口中 JPEGImageDecoder

返回:

The stream that the decoder is currently assciated with.

decodeAsRaster

public Raster decodeAsRaster()
                      throws ImageFormatException

从接口复制的说明: JPEGImageDecoder

Decode the JPEG stream that was passed as part of construction. The JPEG decompression will be performed according to the current settings of the JPEGDecodeParam object. For a tables only stream this will return null.

指定者:

decodeAsRaster 在接口中 JPEGImageDecoder

返回:

Raster containg the image data. Colorspace and other pertinent information can be obtained from the JPEGDecodeParam object.

抛出:

ImageFormatException - if irregularities in the JPEG stream or an unknown condition is encountered.

decodeAsBufferedImage

public BufferedImage decodeAsBufferedImage()
                                    throws ImageFormatException

从接口复制的说明: JPEGImageDecoder

Decodes the current JPEG data stream. The result of decoding this InputStream is a BufferedImage the ColorModel associated with this BufferedImage is determined based on the encoded COLOR_ID of the JPEGDecodeParam object. For a tables only stream this will return null.

指定者:

decodeAsBufferedImage 在接口中 JPEGImageDecoder

返回:

BufferedImage containing the image data.

抛出:

ImageFormatException - if irregularities in the JPEG stream or an unknown condition is encountered.