org.eclipse.gef.handles
Class ConnectionHandle

java.lang.Object
  Figure
      org.eclipse.gef.handles.AbstractHandle
          org.eclipse.gef.handles.SquareHandle
              org.eclipse.gef.handles.ConnectionHandle

All Implemented Interfaces:

EventListener, Handle, PropertyChangeListener

Direct Known Subclasses:

BendpointHandle, ConnectionEndHandle, ConnectionStartHandle

public abstract class ConnectionHandle

extends SquareHandle

implements PropertyChangeListener

The base implementation for handles used with editparts whose figure is a Connection. This class adds an additional listener to the owner's connection figure to receive notification whenever the owner's connection's points are changed. Changing the points of a connection does not fire "figure moved", it only fires "points" property as changing.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.eclipse.gef.handles.SquareHandle

DEFAULT_HANDLE_SIZE

Constructor Summary

ConnectionHandle()
Creates a new ConnectionHandle.

ConnectionHandle(boolean fixed)
Creates a new handle with the given fixed setting.

Method Summary

void	addNotify() Adds this as a FigureListener to the owner's Figure.
Connection	getConnection() Convenience method to return the owner's figure typed as Connection.
protected boolean	isFixed() Returns true if the handle cannot be dragged.
void	propertyChange(PropertyChangeEvent evt)
void	removeNotify() Extended to remove a listener.
void	setFixed(boolean fixed) Sets whether the handle is fixed and cannot be moved

Methods inherited from class org.eclipse.gef.handles.SquareHandle

getBorderColor, getFillColor, init, isPrimary, paintFigure

Methods inherited from class org.eclipse.gef.handles.AbstractHandle

ancestorAdded, ancestorMoved, ancestorRemoved, createDragTracker, getAccessibleLocation, getDragCursor, getDragTracker, getLocator, getOwner, getOwnerFigure, setDragCursor, setDragTracker, setLocator, setOwner, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

ConnectionHandle

public ConnectionHandle()

Creates a new ConnectionHandle.

ConnectionHandle

public ConnectionHandle(boolean fixed)

Creates a new handle with the given fixed setting. If the handle is fixed, it cannot be dragged.

Parameters:

fixed - true if the handle cannot be dragged.

Method Detail

addNotify

public void addNotify()

Adds this as a FigureListener to the owner's Figure.

Overrides:

addNotify in class AbstractHandle

getConnection

public Connection getConnection()

Convenience method to return the owner's figure typed as Connection.

Returns:

the owner's connection

isFixed

protected boolean isFixed()

Returns true if the handle cannot be dragged.

Returns:

true if the handle cannot be dragged

propertyChange

public void propertyChange(PropertyChangeEvent evt)

Specified by:

propertyChange in interface PropertyChangeListener

See Also:

PropertyChangeListener.propertyChange(java.beans.PropertyChangeEvent)

removeNotify

public void removeNotify()

Extended to remove a listener.

Overrides:

removeNotify in class AbstractHandle

See Also:

IFigure

setFixed

public void setFixed(boolean fixed)

Sets whether the handle is fixed and cannot be moved

Parameters:

fixed - true if the handle should be unmovable