ImageConsumer, Cloneable
AreaAveragingScaleFilterpublic class ReplicateScaleFilter extends ImageFilter
It is meant to be used in conjunction with a FilteredImageSource object to produce scaled versions of existing images. Due to implementation dependencies, there may be differences in pixel values of an image filtered on different platforms.
| Modifier and Type | Field | Description |
|---|---|---|
protected int |
destHeight |
The target height to scale the image. |
protected int |
destWidth |
The target width to scale the image. |
protected Object |
outpixbuf |
A byte array initialized with a size of destWidth and used to deliver a row of pixel data to the ImageConsumer. |
protected int[] |
srccols |
An int array containing information about a column of pixels. |
protected int |
srcHeight |
The height of the source image. |
protected int[] |
srcrows |
An int array containing information about a row of pixels. |
protected int |
srcWidth |
The width of the source image. |
consumer
COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT
| Constructor | Description |
|---|---|
ReplicateScaleFilter |
Constructs a ReplicateScaleFilter that scales the pixels from its source Image as specified by the width and height parameters. |
| Modifier and Type | Method | Description |
|---|---|---|
void |
setDimensions |
Override the dimensions of the source image and pass the dimensions of the new scaled size to the ImageConsumer. |
void |
setPixels |
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 |
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 |
Passes along the properties from the source object after adding a property indicating the scale applied. |
clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setColorModel, setHints
protected int srcWidth
protected int srcHeight
protected int destWidth
protected int destHeight
protected int[] srcrows
int array containing information about a row of pixels.protected int[] srccols
int array containing information about a column of pixels.protected Object outpixbuf
byte array initialized with a size of destWidth and used to deliver a row of pixel data to the ImageConsumer.public ReplicateScaleFilter(int width, int height)
width - the target width to scale the imageheight - the target height to scale the imageIllegalArgumentException - if width equals zero or height equals zeropublic void setProperties(Hashtable<?,?> props)
super.setProperties, which might result in additional properties being added. Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
setProperties in interface ImageConsumer
setProperties in class ImageFilter
props - the properties from the source objectpublic void setDimensions(int w, int h)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
setDimensions in interface ImageConsumer
setDimensions in class ImageFilter
w - the width of the source imageh - the height of the source imagepublic void setPixels(int x, int y, int w, int h, ColorModel model, byte[] pixels, int off, int scansize)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
setPixels in interface ImageConsumer
setPixels in class ImageFilter
x - the X coordinate of the upper-left corner of the area of pixels to be sety - the Y coordinate of the upper-left corner of the area of pixels to be setw - the width of the area of pixelsh - the height of the area of pixelsmodel - the specified ColorModel
pixels - the array of pixelsoff - the offset into the pixels arrayscansize - the distance from one row of pixels to the next in the pixels arraypublic void setPixels(int x, int y, int w, int h, ColorModel model, int[] pixels, int off, int scansize)
Note: This method is intended to be called by the ImageProducer of the Image whose pixels are being filtered. Developers using this class to filter pixels from an image should avoid calling this method directly since that operation could interfere with the filtering operation.
setPixels in interface ImageConsumer
setPixels in class ImageFilter
x - the X coordinate of the upper-left corner of the area of pixels to be sety - the Y coordinate of the upper-left corner of the area of pixels to be setw - the width of the area of pixelsh - the height of the area of pixelsmodel - the specified ColorModel
pixels - the array of pixelsoff - the offset into the pixels arrayscansize - the distance from one row of pixels to the next in the pixels array
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/image/ReplicateScaleFilter.html