prajna.util

Class MultiPathIterator

java.lang.Object

prajna.util.MultiPathIterator

All Implemented Interfaces:

java.awt.geom.PathIterator

public class MultiPathIterator
extends java.lang.Object
implements java.awt.geom.PathIterator

This class implements a PathIterator that traverses across a collection of shapes, treating them as a single shape. The MultiPathIterator traverses each in turn.

Author:

Edward Swing

Field Summary

Fields inherited from interface java.awt.geom.PathIterator

SEG_CLOSE, SEG_CUBICTO, SEG_LINETO, SEG_MOVETO, SEG_QUADTO, WIND_EVEN_ODD, WIND_NON_ZERO

Constructor Summary

Constructors

Constructor and Description
MultiPathIterator(java.util.Collection<? extends java.awt.Shape> shapes, java.awt.geom.AffineTransform at) Instantiates a new multi-path iterator.

Method Summary

Methods

Modifier and Type	Method and Description
int	currentSegment(double[] coords) Returns the coordinates and type of the current path segment in the iteration.
int	currentSegment(float[] coords) Returns the coordinates and type of the current path segment in the iteration.
int	getWindingRule() Returns the winding rule for determining the interior of the path.
boolean	isDone() Tests if the iteration is complete.
void	next() Moves the iterator to the next segment of the path forwards along the primary direction of traversal as long as there are more points in that direction.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiPathIterator

public MultiPathIterator(java.util.Collection<? extends java.awt.Shape> shapes,
                 java.awt.geom.AffineTransform at)

Instantiates a new multi-path iterator.

Parameters:

shapes - the collection of shapes

at - the affine transform

Method Detail

currentSegment

public int currentSegment(double[] coords)

Returns the coordinates and type of the current path segment in the iteration.

Specified by:

currentSegment in interface java.awt.geom.PathIterator

Parameters:

coords - an array that holds the data returned from this method

Returns:

the path-segment type of the current path segment.

currentSegment

public int currentSegment(float[] coords)

Returns the coordinates and type of the current path segment in the iteration.

Specified by:

currentSegment in interface java.awt.geom.PathIterator

Parameters:

coords - an array that holds the data returned from this method

Returns:

the path-segment type of the current path segment.

getWindingRule

public int getWindingRule()

Returns the winding rule for determining the interior of the path.

Specified by:

getWindingRule in interface java.awt.geom.PathIterator

Returns:

the winding rule.

isDone

public boolean isDone()

Tests if the iteration is complete. The iteration is complete once all shapes have been traversed.

Specified by:

isDone in interface java.awt.geom.PathIterator

Returns:

true if all the segments have been read; false otherwise.

next

public void next()

Moves the iterator to the next segment of the path forwards along the primary direction of traversal as long as there are more points in that direction.

Specified by:

next in interface java.awt.geom.PathIterator