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Java AWT

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java.awt.image Reference
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CropImageFilter

Name

CropImageFilter

[Graphic: Figure from the text]

Description

The CropImageFilter class creates a smaller image by cropping (i.e., extracting a rectangular region from) a larger image.

Class Definition

public class java.awt.image.CropImageFilter
    extends java.awt.image.ImageFilter {
  // Constructors
  public CropImageFilter (int x, int y, int width, int height);
  // Instance Methods
  public void setDimensions (int width, int height);
  public void setPixels (int x, int y, int width, int height, ColorModel model,
    byte[] pixels, int offset, int scansize);
  public void setPixels (int x, int y, int width, int height, ColorModel model,
    int[] pixels, int offset, int scansize);
  public void setProperties (Hashtable properties);
}

Constructors

CropImageFilter

public CropImageFilter (int x, int y, int width, int height)

Parameters

x

x-coordinate of top-left corner of piece to crop.

y

y-coordinate of top-left corner of piece to crop.

width

Width of image to crop.

height

Height of image to crop.

Description

Constructs a CropImageFilter that crops the specified region from the original image.

Instance Methods

setDimensions

public void setDimensions (int width, int height)

Parameters

width

Ignored parameter.

height

Ignored parameter.

Overrides

ImageFilter.setDimensions(int, int)

Description

Called with the original image's dimensions; these dimensions are ignored. The method in turn calls the ImageConsumer with the dimensions of the cropped image.

setPixels

public void setPixels (int x, int y, int width, int height, ColorModel model, byte[] pixels, int offset, int scansize)

Parameters

x

x-coordinate of top-left corner of pixel data delivered with this method call.

y

y-coordinate of top-left corner of pixel data delivered with this method call.

width

Width of the rectangle of pixel data delivered with this method call.

height

Height of the rectangle of pixel data delivered with this method call.

model

Color model of image data.

pixels

Image data.

offset

Offset from beginning of the pixels array.

scansize

Size of each line of data in pixels array.

Overrides

ImageFilter.setPixels(int, int, int, int, ColorModel, byte[], int, int)

Description

Receives a rectangle of image data from the ImageProducer; crops these pixels and delivers them to any ImageConsumers.

public void setPixels (int x, int y, int width, int height, ColorModel model, int[] pixels, int offset, int scansize)

Parameters

x

x-coordinate of top-left corner of pixel data delivered with this method call.

y

y-coordinate of top-left corner of pixel data delivered with this method call.

width

Width of the rectangle of pixel data delivered with this method call.

height

Height of the rectangle of pixel data delivered with this method call.

model

Color model of image data.

pixels

Image data.

offset

Offset from beginning of the pixels array.

scansize

Size of each line of data in pixels array.

Overrides

ImageFilter.setPixels(int, int, int, int, ColorModel, int[], int, int)

Description

Receives a rectangle of image data from the ImageProducer; crops these pixels and delivers them to any ImageConsumers.

setProperties

public void setProperties (Hashtable properties)

Parameters

properties

The properties for the image.

Overrides

ImageFilter.setProperties(Hashtable)

Description

Adds the "croprect" image property to the properties list.

See Also

ColorModel, Hashtable, ImageFilter


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