com.bbn.openmap.event
Class ZoomEvent

java.lang.Object
  java.util.EventObject
      com.bbn.openmap.event.ZoomEvent

All Implemented Interfaces:

java.io.Serializable

public class ZoomEvent
extends java.util.EventObject
implements java.io.Serializable

An event to request that the map zoom in or out. Event specifies the type and amount of zoom of the map.

See Also:

Serialized Form

Field Summary

static int	ABSOLUTE Type that specifies that the amount should be used as the new scale.
protected float	amount The zoom factor.
static int	RELATIVE Type that specifies that the amount should be used as a multiplier to the current scale.
protected int	type The type of zooming.

Fields inherited from class java.util.EventObject

source

Constructor Summary

ZoomEvent(java.lang.Object source, int type, float amount)
Construct a ZoomEvent.

Method Summary

float	getAmount() Get the amount of zoom.
boolean	isAbsolute() Check if the type is ABSOLUTE.
boolean	isRelative() Check if the type is RELATIVE.
java.lang.String	toString() Stringify the object.

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

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

Field Detail

RELATIVE

public static final transient int RELATIVE

Type that specifies that the amount should be used as a multiplier to the current scale.

See Also:

Constant Field Values

ABSOLUTE

public static final transient int ABSOLUTE

Type that specifies that the amount should be used as the new scale.

See Also:

Constant Field Values

type

protected int type

The type of zooming.

amount

protected float amount

The zoom factor.

Constructor Detail

ZoomEvent

public ZoomEvent(java.lang.Object source,
                 int type,
                 float amount)

Construct a ZoomEvent.

Parameters:

source - the creator of the ZoomEvent.

type - the type of the event, referring to how to use the amount.

amount - the value of the ZoomEvent.

Method Detail

isRelative

public boolean isRelative()

Check if the type is RELATIVE.

Returns:

boolean

isAbsolute

public boolean isAbsolute()

Check if the type is ABSOLUTE.

Returns:

boolean

getAmount

public float getAmount()

Get the amount of zoom.

Returns:

float

toString

public java.lang.String toString()

Stringify the object.

Overrides:

toString in class java.util.EventObject

Returns:

String