Class BufferedImageFilter

All Implemented Interfaces:
ImageConsumer, Cloneable 
public class BufferedImageFilter
extends ImageFilter
implements Cloneable

The BufferedImageFilter class subclasses an ImageFilter to provide a simple means of using a single-source/single-destination image operator (BufferedImageOp) to filter a BufferedImage in the Image Producer/Consumer/Observer paradigm. Examples of these image operators are: ConvolveOp, AffineTransformOp and LookupOp.

See Also:
ImageFilter, BufferedImage, BufferedImageOp

Fields

Fields declared in class java.awt.image.ImageFilter

consumer

Fields declared in interface java.awt.image.ImageConsumer

COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT

Constructors

Constructor Description
BufferedImageFilter​(BufferedImageOp op)

Constructs a BufferedImageFilter with the specified single-source/single-destination operator.

Methods

Modifier and Type Method Description
BufferedImageOp getBufferedImageOp()

Returns the BufferedImageOp.
void imageComplete​(int status)

Filters the information provided in the imageComplete method of the ImageConsumer interface.
void setColorModel​(ColorModel model)

Filters the information provided in the setColorModel method of the ImageConsumer interface.
void setDimensions​(int width, int height)

Filters the information provided in the setDimensions method of the ImageConsumer interface.
void setPixels​(int x, int y, int w, int h, ColorModel model, byte[] pixels, int off, int scansize)

Filters the information provided in the setPixels method of the ImageConsumer interface which takes an array of bytes.
void setPixels​(int x, int y, int w, int h, ColorModel model, int[] pixels, int off, int scansize)

Filters the information provided in the setPixels method of the ImageConsumer interface which takes an array of integers.

Methods declared in class java.awt.image.ImageFilter

clone, getFilterInstance, resendTopDownLeftRight, setHints, setProperties

Methods declared in class java.lang.Object

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

Constructors

BufferedImageFilter

public BufferedImageFilter(BufferedImageOp op)

Constructs a BufferedImageFilter with the specified single-source/single-destination operator.

Parameters:
op - the specified BufferedImageOp to use to filter a BufferedImage
Throws:
NullPointerException - if op is null

Methods

getBufferedImageOp

public BufferedImageOp getBufferedImageOp()

Returns the BufferedImageOp.

Returns:
the operator of this BufferedImageFilter.

setDimensions

public void setDimensions(int width,
                          int height)

Filters the information provided in the setDimensions method of the ImageConsumer interface.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to retrieve pixels from an image should avoid calling this method directly since that operation could result in problems with retrieving the requested pixels.

Specified by:
setDimensions in interface ImageConsumer
Overrides:
setDimensions in class ImageFilter
Parameters:
width - the width to which to set the width of this BufferedImageFilter
height - the height to which to set the height of this BufferedImageFilter
See Also:
ImageConsumer.setDimensions(int, int)

setColorModel

public void setColorModel(ColorModel model)

Filters the information provided in the setColorModel method of the ImageConsumer interface.

If model is null, this method clears the current ColorModel of this BufferedImageFilter.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to retrieve pixels from an image should avoid calling this method directly since that operation could result in problems with retrieving the requested pixels.

Specified by:
setColorModel in interface ImageConsumer
Overrides:
setColorModel in class ImageFilter
Parameters:
model - the ColorModel to which to set the ColorModel of this BufferedImageFilter
See Also:
ImageConsumer.setColorModel(java.awt.image.ColorModel)

setPixels

public void setPixels(int x,
                      int y,
                      int w,
                      int h,
                      ColorModel model,
                      byte[] pixels,
                      int off,
                      int scansize)

Filters the information provided in the setPixels method of the ImageConsumer interface which takes an array of bytes.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to retrieve pixels from an image should avoid calling this method directly since that operation could result in problems with retrieving the requested pixels.

Specified by:
setPixels in interface ImageConsumer
Overrides:
setPixels in class ImageFilter
Parameters:
x - the X coordinate of the upper-left corner of the area of pixels to be set
y - the Y coordinate of the upper-left corner of the area of pixels to be set
w - the width of the area of pixels
h - the height of the area of pixels
model - the specified ColorModel
pixels - the array of pixels
off - the offset into the pixels array
scansize - the distance from one row of pixels to the next in the pixels array
Throws:
IllegalArgumentException - if width or height are less than zero.
See Also:
ImageConsumer.setPixels(int, int, int, int, ColorModel, byte[], int, int)

setPixels

public void setPixels(int x,
                      int y,
                      int w,
                      int h,
                      ColorModel model,
                      int[] pixels,
                      int off,
                      int scansize)

Filters the information provided in the setPixels method of the ImageConsumer interface which takes an array of integers.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to retrieve pixels from an image should avoid calling this method directly since that operation could result in problems with retrieving the requested pixels.

Specified by:
setPixels in interface ImageConsumer
Overrides:
setPixels in class ImageFilter
Parameters:
x - the X coordinate of the upper-left corner of the area of pixels to be set
y - the Y coordinate of the upper-left corner of the area of pixels to be set
w - the width of the area of pixels
h - the height of the area of pixels
model - the specified ColorModel
pixels - the array of pixels
off - the offset into the pixels array
scansize - the distance from one row of pixels to the next in the pixels array
Throws:
IllegalArgumentException - if width or height are less than zero.
See Also:
ImageConsumer.setPixels(int, int, int, int, ColorModel, int[], int, int)

imageComplete

public void imageComplete(int status)

Filters the information provided in the imageComplete method of the ImageConsumer interface.

Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to retrieve pixels from an image should avoid calling this method directly since that operation could result in problems with retrieving the requested pixels.

Specified by:
imageComplete in interface ImageConsumer
Overrides:
imageComplete in class ImageFilter
Parameters:
status - the status of image loading
Throws:
ImagingOpException - if there was a problem calling the filter method of the BufferedImageOp associated with this instance.
See Also:
ImageConsumer.imageComplete(int)

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