public class CropImageFilter extends ImageFilter
FilteredImageSource
,
ImageFilter
consumer
COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT
Constructor and Description |
---|
CropImageFilter(int x,
int y,
int w,
int h)
Constructs a CropImageFilter that extracts the absolute rectangular
region of pixels from its source Image as specified by the x, y,
w, and h parameters.
|
Modifier and Type | Method and Description |
---|---|
void |
setDimensions(int w,
int h)
Override the source image's dimensions and pass the dimensions
of the rectangular cropped region to the ImageConsumer.
|
void |
setPixels(int x,
int y,
int w,
int h,
ColorModel model,
byte[] pixels,
int off,
int scansize)
Determine whether the delivered byte pixels intersect the region to
be extracted and passes through only that subset of pixels that
appear in the output region.
|
void |
setPixels(int x,
int y,
int w,
int h,
ColorModel model,
int[] pixels,
int off,
int scansize)
Determine if the delivered int pixels intersect the region to
be extracted and pass through only that subset of pixels that
appear in the output region.
|
void |
setProperties(Hashtable<?,?> props)
Passes along the properties from the source object after adding a
property indicating the cropped region.
|
clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setColorModel, setHints
public CropImageFilter(int x, int y, int w, int h)
x
- the x location of the top of the rectangle to be extractedy
- the y location of the top of the rectangle to be extractedw
- the width of the rectangle to be extractedh
- the height of the rectangle to be extractedpublic 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 imageImageConsumer
public 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
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 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
arrayImageConsumer.setPixels(int, int, int, int, java.awt.image.ColorModel, byte[], int, int)
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