AdjustmentEvent

Name

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.

ADJUSTMENT_VALUE_CHANGED

public final static int ADJUSTMENT_VALUE_CHANGED

Event type ID for value changed.

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