public 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.
FilteredImageSource,
ImageFilter| Modifier and Type | Field and 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.
|
consumerCOMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT| Constructor and Description |
|---|
ReplicateScaleFilter(int width,
int height)
Constructs a ReplicateScaleFilter that scales the pixels from
its source Image as specified by the width and height parameters.
|
| Modifier and Type | Method and Description |
|---|---|
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.
|
clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setColorModel, setHintsprotected 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 ImageConsumersetProperties in class ImageFilterprops - 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 ImageConsumersetDimensions in class ImageFilterw - the width of the source imageh - the height of the source imageImageConsumerpublic 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 ImageConsumersetPixels in class ImageFilterx - 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 ColorModelpixels - the array of pixelsoff - the offset into the pixels arrayscansize - the distance from one row of pixels to the next in
the pixels arrayImageConsumer.setPixels(int, int, int, int, java.awt.image.ColorModel, byte[], int, int)public 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 ImageConsumersetPixels in class ImageFilterx - 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 ColorModelpixels - the array of pixelsoff - the offset into the pixels arrayscansize - the distance from one row of pixels to the next in
the pixels arrayImageConsumer.setPixels(int, int, int, int, java.awt.image.ColorModel, byte[], int, int) Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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