Class java.awt.event.ComponentEvent - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

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Class java.awt.event.ComponentEvent

java.lang.Object
   |
   +----java.util.EventObject
           |
           +----java.awt.AWTEvent
                   |
                   +----java.awt.event.ComponentEvent

public class ComponentEvent
extends AWTEvent

The root event class for all component-level events. These events are provided for notification purposes ONLY; The AWT will automatically handle component moves and resizes internally so that GUI layout works properly regardless of whether a program is receiving these events or not.

See Also:: ComponentListener

COMPONENT_FIRST: Marks the first integer id for the range of component event ids.
COMPONENT_HIDDEN: The component hidden event type.
COMPONENT_LAST: Marks the last integer id for the range of component event ids.
COMPONENT_MOVED: The component moved event type.
COMPONENT_RESIZED: The component resized event type.
COMPONENT_SHOWN: The component shown event type.

ComponentEvent(Component, int): Constructs a ComponentEvent object with the specified source component and type.

getComponent(): Returns the component where this event originated.
paramString()

COMPONENT_FIRST

 public static final int COMPONENT_FIRST

Marks the first integer id for the range of component event ids.

COMPONENT_LAST

 public static final int COMPONENT_LAST

Marks the last integer id for the range of component event ids.

COMPONENT_MOVED

 public static final int COMPONENT_MOVED

The component moved event type.

COMPONENT_RESIZED

 public static final int COMPONENT_RESIZED

The component resized event type.

COMPONENT_SHOWN

 public static final int COMPONENT_SHOWN

The component shown event type.

COMPONENT_HIDDEN

 public static final int COMPONENT_HIDDEN

The component hidden event type.

ComponentEvent

 public ComponentEvent(Component source,
                       int id)

Constructs a ComponentEvent object with the specified source component and type.

Parameters:: source - the component where the event originated

getComponent

 public Component getComponent()

Returns the component where this event originated.

paramString

 public String paramString()

Overrides:: paramString in class AWTEvent

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