org.jhotdraw.samples.odg.geom
Class EnhancedPath

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<E>
          java.util.ArrayList<EnhancedPath.Segment>
              org.jhotdraw.samples.odg.geom.EnhancedPath

All Implemented Interfaces:

java.awt.Shape, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<EnhancedPath.Segment>, java.util.Collection<EnhancedPath.Segment>, java.util.List<EnhancedPath.Segment>, java.util.RandomAccess

public class EnhancedPath
extends java.util.ArrayList<EnhancedPath.Segment>
implements java.awt.Shape

Represents an ODG Enhanced Path.

The coordinates of a EnhancedPath.Segment can reference a formula or a modifier.

Version:

$Id: EnhancedPath.java 647 2010-01-24 22:52:59Z rawcoder $

Author:

Werner Randelshofer

See Also:

Serialized Form

Nested Class Summary

static class	EnhancedPath.Segment Defines a vertex (node) of the bezier path.
static class	EnhancedPath.SegType

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

EnhancedPath()

Method Summary

void	arcTo(java.lang.Object x1, java.lang.Object y1, java.lang.Object x2, java.lang.Object y2, java.lang.Object x3, java.lang.Object y3, java.lang.Object x4, java.lang.Object y4) (x1, y1) and (x2, y2) is defining the bounding box of a ellipse.
void	clockwiseArcTo(java.lang.Object x1, java.lang.Object y1, java.lang.Object x2, java.lang.Object y2, java.lang.Object x3, java.lang.Object y3, java.lang.Object x4, java.lang.Object y4)
void	close() Closes the current path segment.
boolean	contains(double x, double y)
boolean	contains(double x, double y, double w, double h)
boolean	contains(java.awt.geom.Point2D p)
boolean	contains(java.awt.geom.Rectangle2D r)
void	curveTo(java.lang.Object x1, java.lang.Object y1, java.lang.Object x2, java.lang.Object y2, java.lang.Object x3, java.lang.Object y3) Adds a cubic curve to the current path segment.
void	ellipseTo(java.lang.Object x, java.lang.Object y, java.lang.Object w, java.lang.Object h, java.lang.Object t0, java.lang.Object t1) Draws a segment of an ellipse.
java.awt.Rectangle	getBounds()
java.awt.geom.Rectangle2D	getBounds2D()
java.awt.geom.PathIterator	getPathIterator(java.awt.geom.AffineTransform at)
java.awt.geom.PathIterator	getPathIterator(java.awt.geom.AffineTransform at, double flatness)
int	getWindingRule() Gets winding rule for filling the bezier path.
boolean	intersects(double x, double y, double w, double h)
boolean	intersects(java.awt.geom.Rectangle2D r)
void	invalidatePath() This must be called after the EnhancedPath has been changed.
void	lineTo(java.lang.Object x1, java.lang.Object y1) Adds a line to the current path segment.
void	moveTo(java.lang.Object xm1, java.lang.Object ym1) Opens a new path segment at the specified position.
void	quadrantXTo(java.lang.Object x, java.lang.Object y)
void	quadrantYTo(java.lang.Object x, java.lang.Object y)
void	quadTo(java.lang.Object x1, java.lang.Object y1, java.lang.Object x2, java.lang.Object y2) Adds a quadratic curve to the current path segment.
void	setWindingRule(int newValue) Sets winding rule for filling the bezier path.
java.awt.geom.Path2D.Double	toGeneralPath() Converts the EnhancedPath into a Path2D.Double.
void	validatePath() Recomputes the EnhancedPath, if it is invalid.

Methods inherited from class java.util.ArrayList

add, add, addAll, addAll, clear, clone, contains, ensureCapacity, get, indexOf, isEmpty, lastIndexOf, remove, remove, removeRange, set, size, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractList

equals, hashCode, iterator, listIterator, listIterator, subList

Methods inherited from class java.util.AbstractCollection

containsAll, removeAll, retainAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

containsAll, equals, hashCode, iterator, listIterator, listIterator, removeAll, retainAll, subList

Constructor Detail

EnhancedPath

public EnhancedPath()

Method Detail

getBounds

public java.awt.Rectangle getBounds()

Specified by:

getBounds in interface java.awt.Shape

getBounds2D

public java.awt.geom.Rectangle2D getBounds2D()

Specified by:

getBounds2D in interface java.awt.Shape

contains

public boolean contains(double x,
                        double y,
                        double w,
                        double h)

Specified by:

contains in interface java.awt.Shape

contains

public boolean contains(java.awt.geom.Point2D p)

Specified by:

contains in interface java.awt.Shape

contains

public boolean contains(double x,
                        double y)

Specified by:

contains in interface java.awt.Shape

contains

public boolean contains(java.awt.geom.Rectangle2D r)

Specified by:

contains in interface java.awt.Shape

intersects

public boolean intersects(java.awt.geom.Rectangle2D r)

Specified by:

intersects in interface java.awt.Shape

intersects

public boolean intersects(double x,
                          double y,
                          double w,
                          double h)

Specified by:

intersects in interface java.awt.Shape

getPathIterator

public java.awt.geom.PathIterator getPathIterator(java.awt.geom.AffineTransform at)

Specified by:

getPathIterator in interface java.awt.Shape

getPathIterator

public java.awt.geom.PathIterator getPathIterator(java.awt.geom.AffineTransform at,
                                                  double flatness)

Specified by:

getPathIterator in interface java.awt.Shape

validatePath

public void validatePath()

Recomputes the EnhancedPath, if it is invalid.

invalidatePath

public void invalidatePath()

This must be called after the EnhancedPath has been changed.

toGeneralPath

public java.awt.geom.Path2D.Double toGeneralPath()

Converts the EnhancedPath into a Path2D.Double.

moveTo

public void moveTo(java.lang.Object xm1,
                   java.lang.Object ym1)

Opens a new path segment at the specified position.

lineTo

public void lineTo(java.lang.Object x1,
                   java.lang.Object y1)

Adds a line to the current path segment. This is only allowed, when the current path segment is open.

close

public void close()

Closes the current path segment. This is only allowed, when the current path segment is open.

quadTo

public void quadTo(java.lang.Object x1,
                   java.lang.Object y1,
                   java.lang.Object x2,
                   java.lang.Object y2)

Adds a quadratic curve to the current path segment. This is only allowed, when the current path segment is open.

curveTo

public void curveTo(java.lang.Object x1,
                    java.lang.Object y1,
                    java.lang.Object x2,
                    java.lang.Object y2,
                    java.lang.Object x3,
                    java.lang.Object y3)

Adds a cubic curve to the current path segment. This is only allowed, when the current path segment is open.

arcTo

public void arcTo(java.lang.Object x1,
                  java.lang.Object y1,
                  java.lang.Object x2,
                  java.lang.Object y2,
                  java.lang.Object x3,
                  java.lang.Object y3,
                  java.lang.Object x4,
                  java.lang.Object y4)

(x1, y1) and (x2, y2) is defining the bounding box of a ellipse. A line is then drawn from the current point to the start angle of the arc that is specified by the radial vector of point (x3, y3) and then counter clockwise to the end-angle that is specified by point (x4, y4).

clockwiseArcTo

public void clockwiseArcTo(java.lang.Object x1,
                           java.lang.Object y1,
                           java.lang.Object x2,
                           java.lang.Object y2,
                           java.lang.Object x3,
                           java.lang.Object y3,
                           java.lang.Object x4,
                           java.lang.Object y4)

ellipseTo

public void ellipseTo(java.lang.Object x,
                      java.lang.Object y,
                      java.lang.Object w,
                      java.lang.Object h,
                      java.lang.Object t0,
                      java.lang.Object t1)

Draws a segment of an ellipse. The ellipse is specified by the center(x, y), the size(w, h) and the start-angle t0 and end-angle t1.

quadrantXTo

public void quadrantXTo(java.lang.Object x,
                        java.lang.Object y)

quadrantYTo

public void quadrantYTo(java.lang.Object x,
                        java.lang.Object y)

setWindingRule

public void setWindingRule(int newValue)

Sets winding rule for filling the bezier path.

Parameters:

newValue - Must be Path2D.Double.WIND_EVEN_ODD or Path2D.Double.WIND_NON_ZERO.

getWindingRule

public int getWindingRule()

Gets winding rule for filling the bezier path.

Returns:

Path2D.Double.WIND_EVEN_ODD or Path2D.Double.WIND_NON_ZERO.