PixelGrabber JDK 1.6)

Constructors

public PixelGrabber (Image img, int x, int y, int w, int h, boolean forceRGB)

Create a PixelGrabber object to grab the (x, y, w, h) rectangular section of pixels from the specified image.

public PixelGrabber (Image img, int x, int y, int w, int h, int[] pix, int off, int scansize)

Create a PixelGrabber object to grab the (x, y, w, h) rectangular section of pixels from the specified image into the given array.

public PixelGrabber (ImageProducer ip, int x, int y, int w, int h, int[] pix, int off, int scansize)

Create a PixelGrabber object to grab the (x, y, w, h) rectangular section of pixels from the image produced by the specified ImageProducer into the given array.

Create a PixelGrabber object to grab the (x, y, w, h) rectangular
section of pixels from the image produced by the specified
ImageProducer into the given array.
The pixels are stored into the array in the default RGB ColorModel.
The RGB data for pixel (i, j) where (i, j) is inside the rectangle
(x, y, w, h) is stored in the array at
pix[(j - y) * scansize + (i - x) + off].
Parameters:
- ip - the ImageProducer that produces the image from which to retrieve pixels
- x - the x coordinate of the upper left corner of the rectangle of pixels to retrieve from the image, relative to the default (unscaled) size of the image
- y - the y coordinate of the upper left corner of the rectangle of pixels to retrieve from the image
- w - the width of the rectangle of pixels to retrieve
- h - the height of the rectangle of pixels to retrieve
- pix - the array of integers which are to be used to hold the RGB pixels retrieved from the image
- off - the offset into the array of where to store the first pixel
- scansize - the distance from one row of pixels to the next in the array
See Also: ColorModel.getRGBdefault(),

Methods

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publicsynchronized void abortGrabbing ()

Request the PixelGrabber to abort the image fetch.

publicsynchronized ColorModel getColorModel ()

Get the ColorModel for the pixels stored in the array.

publicsynchronized int getHeight ()

Get the height of the pixel buffer (after adjusting for image height).

publicsynchronized Object getPixels ()

Get the pixel buffer.

publicsynchronized int getStatus ()

Return the status of the pixels.

publicsynchronized int getWidth ()

Get the width of the pixel buffer (after adjusting for image width).

public boolean grabPixels () throws InterruptedException

Request the Image or ImageProducer to start delivering pixels and wait for all of the pixels in the rectangle of interest to be delivered.

publicsynchronized boolean grabPixels (long ms) throws InterruptedException

Request the Image or ImageProducer to start delivering pixels and wait for all of the pixels in the rectangle of interest to be delivered or until the specified timeout has elapsed.

Request the Image or ImageProducer to start delivering pixels and
wait for all of the pixels in the rectangle of interest to be
delivered or until the specified timeout has elapsed. This method
behaves in the following ways, depending on the value of
ms:

If ms == 0, waits until all pixels are delivered
If ms > 0, waits until all pixels are delivered
as timeout expires.
If ms < 0, returns true if all pixels
are grabbed, false otherwise and does not wait.

Returns: true if the pixels were successfully grabbed, false on abort, error or timeout
Parameters:
- ms - the number of milliseconds to wait for the image pixels to arrive before timing out
Throws:
- InterruptedException - Another thread has interrupted this thread.

publicsynchronized void imageComplete (int status) [Specified in ImageConsumer]

The imageComplete method is part of the ImageConsumer API which this class must implement to retrieve the pixels.

public void setColorModel (ColorModel model) [Specified in ImageConsumer]

The setColorModel method is part of the ImageConsumer API which this class must implement to retrieve the pixels.

public void setDimensions (int width, int height) [Specified in ImageConsumer]

The setDimensions method is part of the ImageConsumer API which this class must implement to retrieve the pixels.

public void setHints (int hints) [Specified in ImageConsumer]

The setHints method is part of the ImageConsumer API which this class must implement to retrieve the pixels.

public void setPixels (int srcX, int srcY, int srcW, int srcH, ColorModel model, byte[] pixels, int srcOff, int srcScan) [Specified in ImageConsumer]

The setPixels method is part of the ImageConsumer API which this class must implement to retrieve the pixels.

public void setPixels (int srcX, int srcY, int srcW, int srcH, ColorModel model, int[] pixels, int srcOff, int srcScan) [Specified in ImageConsumer]

The setPixels method is part of the ImageConsumer API which this class must implement to retrieve the pixels.

public void setProperties (Hashtable<Object, Object> props) [Specified in ImageConsumer]

The setProperties method is part of the ImageConsumer API which this class must implement to retrieve the pixels.

publicsynchronized void startGrabbing ()

Request the PixelGrabber to start fetching the pixels.

publicsynchronized int status ()

Returns the status of the pixels.

Returns the status of the pixels. The ImageObserver flags
representing the available pixel information are returned.
This method and getStatus have the
same implementation, but getStatus is the
preferred method because it conforms to the convention of
naming information-retrieval methods with the form
"getXXX".
Returns: the bitwise OR of all relevant ImageObserver flags
See Also: ImageObserver, PixelGrabber.getStatus(),

Fields

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pack-private byte bytePixels

publicfinalstatic int COMPLETESCANLINES = "4" [Inherited From ImageConsumer]

The pixels will be delivered in (multiples of) complete scanlines at a time.

pack-private int dstH

pack-private int dstOff

pack-private int dstScan

pack-private int dstW

pack-private int dstX

pack-private int dstY

publicfinalstatic int IMAGEABORTED = "4" [Inherited From ImageConsumer]

The image creation process was deliberately aborted.

publicfinalstatic int IMAGEERROR = "1" [Inherited From ImageConsumer]

An error was encountered while producing the image.

pack-private ColorModel imageModel

pack-private int intPixels

pack-private ImageProducer producer

publicfinalstatic int RANDOMPIXELORDER = "1" [Inherited From ImageConsumer]

The pixels will be delivered in a random order.

publicfinalstatic int SINGLEFRAME = "16" [Inherited From ImageConsumer]

The image contain a single static image.

publicfinalstatic int SINGLEFRAMEDONE = "2" [Inherited From ImageConsumer]

One frame of the image is complete but there are more frames to be delivered.

publicfinalstatic int SINGLEPASS = "8" [Inherited From ImageConsumer]

The pixels will be delivered in a single pass.

publicfinalstatic int STATICIMAGEDONE = "3" [Inherited From ImageConsumer]

The image is complete and there are no more pixels or frames to be delivered.

publicfinalstatic int TOPDOWNLEFTRIGHT = "2" [Inherited From ImageConsumer]

The pixels will be delivered in top-down, left-to-right order.