y.view
Class Graph2DSelectionEvent

java.lang.Object
  java.util.EventObject
      y.view.Graph2DSelectionEvent

All Implemented Interfaces:

Serializable

public class Graph2DSelectionEvent
extends EventObject

An event which indicates that the selection state of an edge, a bend or a node in a Graph2D has changed. This event is generated by Bend, Node- or EdgeRealizer whose selection state changes.

The event is passed to every Graph2DSelectionListener object that registered to receive such events using the Graph2D's Graph2D.addGraph2DSelectionListener(y.view.Graph2DSelectionListener) method.

The object that implements the Graph2DSelectionListener interface gets this Graph2DSelectionEvent when the event occurs.

Each Graph2DSelectionEvent has a subject whose selection state changed. The subject can either be of type Node, Bend or of type Edge.

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Graph2DSelectionEvent(Graph2D source, Object subject)
Creates a new Instance of GraphEvent with given type and data

Method Summary

Graph2D	getGraph2D() Returns the graph that is the emitter of this event.
Object	getSubject() Returns the subject whose selection state changed.
boolean	isBendSelection() Returns whether or not the subject is of type Bend.
boolean	isEdgeSelection() Returns whether or not the subject is of type Edge.
boolean	isNodeSelection() Returns whether or not the subject is of type Node.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Graph2DSelectionEvent

public Graph2DSelectionEvent(Graph2D source,
                             Object subject)

Creates a new Instance of GraphEvent with given type and data

Method Detail

isNodeSelection

public boolean isNodeSelection()

Returns whether or not the subject is of type Node.

isEdgeSelection

public boolean isEdgeSelection()

Returns whether or not the subject is of type Edge.

isBendSelection

public boolean isBendSelection()

Returns whether or not the subject is of type Bend.

getSubject

public Object getSubject()

Returns the subject whose selection state changed. The subject is either of type Node or of type Edge.

getGraph2D

public Graph2D getGraph2D()

Returns the graph that is the emitter of this event.