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Class java.awt.image.ReplicateScaleFilter

java.lang.Object
   |
   +----java.awt.image.ImageFilter
           |
           +----java.awt.image.ReplicateScaleFilter

public class ReplicateScaleFilter
extends ImageFilter
An ImageFilter class for scaling images using the simplest algorithm. This class extends the basic ImageFilter Class to scale an existing image and provide a source for a new image containing the resampled image. The pixels in the source image are sampled to produce pixels for an image of the specified size by replicating rows and columns of pixels to scale up or omitting rows and columns of pixels to scale down. It is meant to be used in conjunction with a FilteredImageSource object to produce scaled versions of existing images.

See Also:
FilteredImageSource, ImageFilter

Variable Index

 o destHeight
 o destWidth
 o outpixbuf
 o srccols
 o srcHeight
 o srcrows
 o srcWidth

Constructor Index

 o ReplicateScaleFilter(int, int)
Constructs a ReplicateScaleFilter that scales the pixels from its source Image as specified by the width and height parameters.

Method Index

 o setDimensions(int, int)
Override the dimensions of the source image and pass the dimensions of the new scaled size to the ImageConsumer.
 o setPixels(int, int, int, int, ColorModel, byte[], int, int)
Choose which rows and columns of the delivered byte pixels are needed for the destination scaled image and pass through just those rows and columns that are needed, replicated as necessary.
 o setPixels(int, int, int, int, ColorModel, int[], int, int)
Choose which rows and columns of the delivered int pixels are needed for the destination scaled image and pass through just those rows and columns that are needed, replicated as necessary.
 o setProperties(Hashtable)
Passes along the properties from the source object after adding a property indicating the scale applied.

Variables

 o srcWidth
 protected int srcWidth
 o srcHeight
 protected int srcHeight
 o destWidth
 protected int destWidth
 o destHeight
 protected int destHeight
 o srcrows
 protected int srcrows[]
 o srccols
 protected int srccols[]
 o outpixbuf
 protected Object outpixbuf

Constructors

 o ReplicateScaleFilter
 public ReplicateScaleFilter(int width,
                             int height)
Constructs a ReplicateScaleFilter that scales the pixels from its source Image as specified by the width and height parameters.

Parameters:
width - the target width to scale the image
height - the target height to scale the image

Methods

 o setProperties
 public void setProperties(Hashtable props)
Passes along the properties from the source object after adding a property indicating the scale applied.

Overrides:
setProperties in class ImageFilter
 o setDimensions
 public void setDimensions(int w,
                           int h)
Override the dimensions of the source image and pass the dimensions of the new scaled size to the ImageConsumer.

Overrides:
setDimensions in class ImageFilter
See Also:
ImageConsumer
 o setPixels
 public void setPixels(int x,
                       int y,
                       int w,
                       int h,
                       ColorModel model,
                       byte pixels[],
                       int off,
                       int scansize)
Choose which rows and columns of the delivered byte pixels are needed for the destination scaled image and pass through just those rows and columns that are needed, replicated as necessary.

Overrides:
setPixels in class ImageFilter
 o setPixels
 public void setPixels(int x,
                       int y,
                       int w,
                       int h,
                       ColorModel model,
                       int pixels[],
                       int off,
                       int scansize)
Choose which rows and columns of the delivered int pixels are needed for the destination scaled image and pass through just those rows and columns that are needed, replicated as necessary.

Overrides:
setPixels in class ImageFilter

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