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Class java.awt.image.ReplicateScaleFilter

java.lang.Object
    |
    +----java.awt.image.ImageFilter
            |
            +----java.awt.image.ReplicateScaleFilter
Subclasses:
AreaAveragingScaleFilter

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

Field Summary
int  destHeight
 
int  destWidth
 
Object  outpixbuf
 
int[]  srccols
 
int  srcHeight
 
int[]  srcrows
 
int  srcWidth
 
 
Fields inherited from class java.awt.image.ImageFilter
 consumer
 

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

Method Summary
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.
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.
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.
void  setProperties(Hashtable props)
Passes along the properties from the source object after adding a property indicating the scale applied.
 
Methods inherited from class java.awt.image.ImageFilter
 clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setColorModel, setDimensions, setHints, setPixels, setPixels, setProperties
 
Methods inherited from class java.lang.Object
 clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

srcWidth

protected int srcWidth

srcHeight

protected int srcHeight

destWidth

protected int destWidth

destHeight

protected int destHeight

srcrows

protected int[] srcrows

srccols

protected int[] srccols

outpixbuf

protected Object outpixbuf
Constructor Detail

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
Method Detail

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

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

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

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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