ImageFilter.resendTopDownLeftRight
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public void resendTopDownLeftRight( ImageProducer ip )
Parameters
- ip
- The ImageProducer that is feeding this instance of
the filter - also the ImageProducer that the request should be
forwarded to if necessary.
Description
Responds to a request for a TopDownLeftRight (TDLR) ordered resend
of the pixel data from an ImageConsumer.
The ImageFilter can respond to this request in one of three ways.
- If the filter can determine that it will forward the pixels in
TDLR order if its upstream producer object sends them
in TDLR order, then the request is automatically forwarded by
default to the indicated ImageProducer using this filter as the
requesting ImageConsumer, so no override is necessary.
- If the filter can resend the pixels in the right order on its
own (presumably because the generated pixels have been saved in
some sort of buffer), then it can override this method and
simply resend the pixels in TDLR order as specified in the
ImageProducer API.
- If the filter simply returns from this
method then the request will be ignored and no resend will
occur.
See Also
requestTopDownLeftRightResend