org.eclipse.draw2d
Class ChopboxAnchor

java.lang.Object
  org.eclipse.draw2d.ConnectionAnchorBase
      org.eclipse.draw2d.AbstractConnectionAnchor
          org.eclipse.draw2d.ChopboxAnchor

All Implemented Interfaces:

AncestorListener, ConnectionAnchor

Direct Known Subclasses:

LabelAnchor

public class ChopboxAnchor
extends AbstractConnectionAnchor

The ChopboxAnchor's location is found by calculating the intersection of a line drawn from the center point of its owner's box to a reference point on that box. Thus Connections using the ChopBoxAnchor will be oriented such that they point to their owner's center.

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.draw2d.AncestorListener

AncestorListener.Stub

Field Summary

Fields inherited from class org.eclipse.draw2d.ConnectionAnchorBase

listeners

Constructor Summary

protected	ChopboxAnchor() Constructs a new ChopboxAnchor.
	ChopboxAnchor(IFigure owner) Constructs a ChopboxAnchor with the given owner figure.

Method Summary

boolean	equals(Object obj) Returns true if the other anchor has the same owner and box.
protected Rectangle	getBox() Returns the bounds of this ChopboxAnchor's owner.
Point	getLocation(Point reference) Gets a Rectangle from getBox() and returns the Point where a line from the center of the Rectangle to the Point reference intersects the Rectangle.
Point	getReferencePoint() Returns the anchor's reference point.
int	hashCode() The owning figure's hashcode is used since equality is approximately based on the owner.

Methods inherited from class org.eclipse.draw2d.AbstractConnectionAnchor

addAnchorListener, ancestorAdded, ancestorMoved, ancestorRemoved, getOwner, removeAnchorListener, setOwner

Methods inherited from class org.eclipse.draw2d.ConnectionAnchorBase

fireAnchorMoved

Methods inherited from class java.lang.Object

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

Constructor Detail

ChopboxAnchor

protected ChopboxAnchor()

Constructs a new ChopboxAnchor.

ChopboxAnchor

public ChopboxAnchor(IFigure owner)

Constructs a ChopboxAnchor with the given owner figure.

Parameters:

owner - The owner figure

Since:

2.0

Method Detail

getLocation

public Point getLocation(Point reference)

Gets a Rectangle from getBox() and returns the Point where a line from the center of the Rectangle to the Point reference intersects the Rectangle.

Parameters:

reference - The reference point

Returns:

The anchor location

getBox

protected Rectangle getBox()

Returns the bounds of this ChopboxAnchor's owner. Subclasses can override this method to adjust the box the anchor can be placed on. For instance, the owner figure may have a drop shadow that should not be included in the box.

Returns:

The bounds of this ChopboxAnchor's owner

Since:

2.0

getReferencePoint

public Point getReferencePoint()

Returns the anchor's reference point. In the case of the ChopboxAnchor, this is the center of the anchor's owner.

Specified by:

getReferencePoint in interface ConnectionAnchor

Overrides:

getReferencePoint in class AbstractConnectionAnchor

Returns:

The reference point

See Also:

ConnectionAnchor.getReferencePoint()

equals

public boolean equals(Object obj)

Returns true if the other anchor has the same owner and box.

Overrides:

equals in class Object

Parameters:

obj - the other anchor

Returns:

true if equal

hashCode

public int hashCode()

The owning figure's hashcode is used since equality is approximately based on the owner.

Overrides:

hashCode in class Object

Returns:

the hash code.