Class CropImageFilter
- All Implemented Interfaces:
ImageConsumer
,Cloneable
- See Also:
-
Field Summary
Fields declared in class java.awt.image.ImageFilter
consumer
Fields declared in interface java.awt.image.ImageConsumer
COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT
-
Constructor Summary
ConstructorDescriptionCropImageFilter
(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. -
Method Summary
Modifier and TypeMethodDescriptionvoid
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.Methods declared in class java.awt.image.ImageFilter
clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setColorModel, setHints
-
Constructor Details
-
CropImageFilter
public 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.- Parameters:
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 extracted
-
-
Method Details
-
setProperties
Passes along the properties from the source object after adding a property indicating the cropped region. This method invokessuper.setProperties
, which might result in additional properties being added.Note: This method is intended to be called by the
ImageProducer
of theImage
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.- Specified by:
setProperties
in interfaceImageConsumer
- Overrides:
setProperties
in classImageFilter
- Parameters:
props
- the properties from the source object
-
setDimensions
public void setDimensions(int w, int h) Override the source image's dimensions and pass the dimensions of the rectangular cropped region to the ImageConsumer.Note: This method is intended to be called by the
ImageProducer
of theImage
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.- Specified by:
setDimensions
in interfaceImageConsumer
- Overrides:
setDimensions
in classImageFilter
- Parameters:
w
- the width of the source imageh
- the height of the source image- See Also:
-
setPixels
public 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.Note: This method is intended to be called by the
ImageProducer
of theImage
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.- Specified by:
setPixels
in interfaceImageConsumer
- Overrides:
setPixels
in classImageFilter
- Parameters:
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 specifiedColorModel
pixels
- the array of pixelsoff
- the offset into thepixels
arrayscansize
- the distance from one row of pixels to the next in thepixels
array- See Also:
-
setPixels
public 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.Note: This method is intended to be called by the
ImageProducer
of theImage
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.- Specified by:
setPixels
in interfaceImageConsumer
- Overrides:
setPixels
in classImageFilter
- Parameters:
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 specifiedColorModel
pixels
- the array of pixelsoff
- the offset into thepixels
arrayscansize
- the distance from one row of pixels to the next in thepixels
array- See Also:
-