uk.ac.kcl.cch.jb.pliny.containmentView.model
Class ContainmentLinkEnd

java.lang.Object
  uk.ac.kcl.cch.rdb2java.dynData.PropertyChangeObject
      uk.ac.kcl.cch.jb.pliny.containmentView.model.ContainmentLinkEnd

All Implemented Interfaces:

EventListener, IPropertyChangeObject, PropertyChangeListener

public class ContainmentLinkEnd

extends PropertyChangeObject

implements PropertyChangeListener

part of the data model for the ContainmentView that represents the ends (arrowheads) of the links between ContainmentItems.

As representation of the ends of the links, it is natural that it track changes in the corresponding LinkableObject that indicates when a new colour for the arrow is neede. There are two situations that are tracked by generating events:

• COLOUR_EVENT: when a colour change is needed because a colour associated with a type has changed.
• NEW_TYPE_EVENT: when a colour change is needed because the type associated with the LinkableObject has changed. This event might also be important is the new type represents a move from a link that should not be displayed (because the LOType has been excluded from display) or vice-versa.

To track these two events, this object listens to both its LinkableObject and to the LOType associated with it.

Author:

John Bradley

Field Summary

static String	COLOUR_EVENT
static String	NEW_TYPE_EVENT

Constructor Summary

ContainmentLinkEnd(LinkableObject myObject)
builds a instance of this model object for the given LinkableObject.

Method Summary

void	dispose()
org.eclipse.swt.graphics.Color	getMyColour()
LinkableObject	getMyLinkableObject()
void	propertyChange(PropertyChangeEvent arg0) this method is called whenever a property associated with either the LinkableObject or its LOType is changed.
String	toString()

Methods inherited from class uk.ac.kcl.cch.rdb2java.dynData.PropertyChangeObject

addPropertyChangeListener, firePropertyChange, firePropertyChange, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Field Detail

COLOUR_EVENT

public static final String COLOUR_EVENT

See Also:

Constant Field Values

NEW_TYPE_EVENT

public static final String NEW_TYPE_EVENT

See Also:

Constant Field Values

Constructor Detail

ContainmentLinkEnd

public ContainmentLinkEnd(LinkableObject myObject)

builds a instance of this model object for the given LinkableObject.

Parameters:

myObject - LinkableObject object this instance should be associated with.

Method Detail

dispose

public void dispose()

getMyColour

public org.eclipse.swt.graphics.Color getMyColour()

getMyLinkableObject

public LinkableObject getMyLinkableObject()

propertyChange

public void propertyChange(PropertyChangeEvent arg0)

this method is called whenever a property associated with either the LinkableObject or its LOType is changed.

Specified by:

propertyChange in interface PropertyChangeListener

toString

public String toString()