Class java.awt.image.ReplicateScaleFilter - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

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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

destHeight
destWidth
outpixbuf
srccols
srcHeight
srcrows
srcWidth

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

setDimensions(int, int): Override the dimensions of the source image and pass the dimensions of the new scaled size to the ImageConsumer.
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.
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.
setProperties(Hashtable): Passes along the properties from the source object after adding a property indicating the scale applied.

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

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

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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