BufferedImageFilter (Java Platform SE 7 )
Keywords: java.awt.image.BufferedImageFilter class

java.awt.image

## Class BufferedImageFilter

- java.lang.Object
- - java.awt.image.ImageFilter
  - - java.awt.image.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`

- - ### Field Summary

    - ### Fields inherited from class java.awt.image.ImageFilter

      `consumer`

    - ### Fields inherited from interface java.awt.image.ImageConsumer

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

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BufferedImageFilter(BufferedImageOp op)` Constructs a `BufferedImageFilter` with the specified single-source/single-destination operator.

  - ### Method Summary

    Methods
    Modifier and Type | Method and 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 inherited from class java.awt.image.ImageFilter

      `clone, getFilterInstance, resendTopDownLeftRight, setHints, setProperties`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### 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

  - ### Method Detail

    - #### 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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