cz.cuni.jagrlib.piece
Class AlphaMatrix.AlphaMatrixEnumerator

java.lang.Object
  cz.cuni.jagrlib.piece.AlphaMatrix.AlphaMatrixEnumerator

All Implemented Interfaces:

BitMaskEnumerator

Enclosing class:

AlphaMatrix

public class AlphaMatrix.AlphaMatrixEnumerator
extends java.lang.Object
implements BitMaskEnumerator

Special Enumerator for AlphaMatrix.

Since:

0.06

Nested Class Summary

Nested classes/interfaces inherited from interface cz.cuni.jagrlib.BitMaskEnumerator

BitMaskEnumerator.HLine, BitMaskEnumerator.Pixel

Field Summary

protected int	x Actual X coordinate.
protected int	y Actual Y coordinate.

Fields inherited from interface cz.cuni.jagrlib.BitMaskEnumerator

MINUS_INFINITY, PLUS_INFINITY

Method Summary

protected boolean	findNext() Finds the next non-transparent pixel.
BitMaskEnumerator.HLine	nextHLine(BitMaskEnumerator.HLine pre) Returns the next BitMask (AlphaMask) H-line.
BitMaskEnumerator.Pixel	nextPixel(BitMaskEnumerator.Pixel pre) Returns the next BitMask (AlphaMask) pixel.
void	reset() (re-)initialization of the enumerator.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

x

protected int x

Actual X coordinate.

y

protected int y

Actual Y coordinate.

Method Detail

reset

public void reset()

(re-)initialization of the enumerator.

Specified by:

reset in interface BitMaskEnumerator

findNext

protected boolean findNext()

Finds the next non-transparent pixel. Updates x and y.

Returns:

true if there are no more opaque pixels.

nextPixel

public BitMaskEnumerator.Pixel nextPixel(BitMaskEnumerator.Pixel pre)

Returns the next BitMask (AlphaMask) pixel.

Specified by:

nextPixel in interface BitMaskEnumerator

Parameters:

pre - Pre-allocated BitMaskEnumerator.Pixel instance (non-mandatory).

Returns:

The next opaque BitMaskEnumerator.Pixel or null.

See Also:

nextHLine(cz.cuni.jagrlib.BitMaskEnumerator.HLine)

nextHLine

public BitMaskEnumerator.HLine nextHLine(BitMaskEnumerator.HLine pre)

Returns the next BitMask (AlphaMask) H-line.

Specified by:

nextHLine in interface BitMaskEnumerator

Parameters:

pre - Pre-allocated BitMaskEnumerator.HLine instance (non-mandatory).

Returns:

The next opaque BitMaskEnumerator.HLine or null.

See Also:

nextPixel(cz.cuni.jagrlib.BitMaskEnumerator.Pixel)