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AdjustmentEvent (New)

Name

AdjustmentEvent (New)

[Graphic: Figure from the text]

Description

AdjustmentEvents are generated by objects that implement the Adjustable interface. Scrollbar is one example of such an object.

Class Definition

public class java.awt.event.AdjustmentEvent
   extends java.awt.AWTEvent {
  // Constants
  public final static int ADJUSTMENT_FIRST;
  public final static int ADJUSTMENT_LAST;
  public final static int ADJUSTMENT_VALUE_CHANGED;
  public final static int BLOCK_DECREMENT;
  public final static int BLOCK_INCREMENT;
  public final static int TRACK;
  public final static int UNIT_DECREMENT;
  public final static int UNIT_INCREMENT;
  // Constructors
  public AdjustmentEvent (Adjustable source, int id, int type, int value);
  // Instance Methods
  public Adjustable getAdjustable();
  public int getAdjustmentType();
  public int getValue();
  public String paramString();
}

Constants

ADJUSTMENT_FIRST

public final static int ADJUSTMENT_FIRST

Specifies the beginning range of adjustment event ID values.

ADJUSTMENT_LAST

public final static int ADJUSTMENT_LAST

Specifies the ending range of adjustment event ID values.

BLOCK_DECREMENT

public final static int BLOCK_DECREMENT

Adjustment type for block decrement.

BLOCK_INCREMENT

public final static int BLOCK_INCREMENT

Adjustment type for block increment.

TRACK

public final static int TRACK

Adjustment type for tracking.

UNIT_DECREMENT

public final static int UNIT_DECREMENT

Adjustment type for unit decrement.

UNIT_INCREMENT

public final static int UNIT_INCREMENT

Adjustment type for unit increment.

Constructors

AdjustmentEvent

public AdjustmentEvent (Adjustable source, int id, int type, int value)

Parameters

source

The object that generated the event.

id

The event type ID of the event.

type

The type of adjustment event.

value

The value of the Adjustable object.

Description

Constructs an AdjustmentEvent with the given characteristics.

Instance Methods

getAdjustable

public Adjustable getAdjustable()

Returns

The source of this event.

getAdjustmentType

public int getAdjustmentType()

Returns

One of the adjustment type constants.

Description

The type will be BLOCK_DECREMENT, BLOCK_INCREMENT, TRACK, UNIT_DECREMENT, or UNIT_INCREMENT.

getValue

public int getValue()

Returns

The new value of the Adjustable object.

paramString

public String paramString()

Returns

String with current settings of the AdjustmentEvent.

Overrides

AWTEvent.paramString()

Description

Helper method for toString() to generate string of current settings.

See Also

Adjustable, AdjustmentListener, AWTEvent, Scrollbar


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