jdraw
Class GraphicalObjectManager

java.lang.Object
  |
  +--jdraw.GraphicalObjectManager

public class GraphicalObjectManager

extends Object

A repository for graphical objects.

Field Summary

private int	iDistanceSquareThresold The squared distance thresold, used to find closest object.
private ArrayList	lstObjects The collection containing the graphical objects.
private ArrayList	lstPropertyChangeListeners
private PropertyChangeListener	pplPropertyChangeListener The shared listener for bounding box events.
private Rectangle	rectInitialBoundingBox

Constructor Summary

GraphicalObjectManager()
Creates a new empty GraphicalObjectManager object.

GraphicalObjectManager(GraphicalObject[] graphical_objects)
Creates a new GraphicalObjectManager object, with the specified GraphicalObjects.

Method Summary

void	add(GraphicalObject grobjObject) Adds the specified graphical object to the list of managed objects.
void	addPropertyChangeListener(PropertyChangeListener pplListener) Adds a BoudingBoxListener to this graphical object.
protected void	fireBoudingBoxChange(PropertyChangeEvent ppe) Fires the specified PropertyChangedEvent.
GraphicalObject	getClosestObject(Point ptPoint) Returns the closest object to the specified point, with respect to distance thresold.
int	getDistanceThresold() Returns the distance thresold used to find closest objects.
Iterator	iterator() Returns an iterator over the graphical objects managed.
boolean	remove(GraphicalObject grobjObject) Removes the specified graphical object to the list of managed objects.
void	removePropertyChangeListener(PropertyChangeListener pplListener) Removes a BoudingBoxListener from this graphical object.
void	setDistanceThresold(int iNewDistanceThresold) Sets the distance thresold used to find closest objects.

Methods inherited from class java.lang.Object

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

Field Detail

iDistanceSquareThresold

private int iDistanceSquareThresold

The squared distance thresold, used to find closest object.

lstObjects

private final ArrayList lstObjects

The collection containing the graphical objects.

pplPropertyChangeListener

private final PropertyChangeListener pplPropertyChangeListener

The shared listener for bounding box events.

lstPropertyChangeListeners

private final ArrayList lstPropertyChangeListeners

rectInitialBoundingBox

private Rectangle rectInitialBoundingBox

Constructor Detail

GraphicalObjectManager

public GraphicalObjectManager()

Creates a new empty GraphicalObjectManager object.

GraphicalObjectManager

public GraphicalObjectManager(GraphicalObject[] graphical_objects)

Creates a new GraphicalObjectManager object, with the specified GraphicalObjects.

Method Detail

add

public void add(GraphicalObject grobjObject)

Adds the specified graphical object to the list of managed objects.

getClosestObject

public GraphicalObject getClosestObject(Point ptPoint)

Returns the closest object to the specified point, with respect to distance thresold.

getDistanceThresold

public int getDistanceThresold()

Returns the distance thresold used to find closest objects.

iterator

public Iterator iterator()

Returns an iterator over the graphical objects managed.

remove

public boolean remove(GraphicalObject grobjObject)

Removes the specified graphical object to the list of managed objects.

setDistanceThresold

public void setDistanceThresold(int iNewDistanceThresold)

Sets the distance thresold used to find closest objects.

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener pplListener)

Adds a BoudingBoxListener to this graphical object.

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener pplListener)

Removes a BoudingBoxListener from this graphical object.

fireBoudingBoxChange

protected void fireBoudingBoxChange(PropertyChangeEvent ppe)

Fires the specified PropertyChangedEvent.