Class java.awt.image.ReplicateScaleFilter 
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Class java.awt.image.ReplicateScaleFilter 

Object
   |
   +----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.

Version:
1.3 07/01/98
Author:
Jim Graham
See Also:
FilteredImageSource, ImageFilter

Variable Index

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

Constructor Index

o java.awt.image.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 destHeight 
protected int destHeight
o destWidth 
protected int destWidth
o outpixbuf 
protected java.lang.Object outpixbuf
o srcHeight 
protected int srcHeight
o srcWidth 
protected int srcWidth
o srccols 
protected int[] srccols
o srcrows 
protected int[] srcrows

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 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
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 
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