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Java Source Code / Java Documentation » 6.0 JDK Core » AWT » java.awt

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

java.util .EventObject

java.awt .AWTEvent

All known Subclasses:   java.awt.event .AdjustmentEvent,  java.awt.event .InputMethodEvent,  java.awt.event .ActionEvent,  java.awt.event .ComponentEvent,  java.awt.event .InvocationEvent,  java.awt.event .ItemEvent,  java.awt .SequencedEvent,  java.awt.event .TextEvent,  java.awt.event .HierarchyEvent,  java.awt .SentEvent,
AWTEvent
abstract public class AWTEvent extends EventObject (Code)
The root event class for all AWT events. This class and its subclasses supercede the original java.awt.Event class. Subclasses of this root AWTEvent class defined outside of the java.awt.event package should define event ID values greater than the value defined by RESERVED_ID_MAX.
The event masks defined in this class are needed by Component subclasses which are using Component.enableEvents() to select for event types not selected by registered listeners. If a listener is registered on a component, the appropriate event mask is already set internally by the component.
The masks are also used to specify to which types of events an AWTEventListener should listen. The masks are bitwise-ORed together and passed to Toolkit.addAWTEventListener.
See Also:   Component.enableEvents
See Also:   Toolkit.addAWTEventListener
See Also:   java.awt.event.ActionEvent
See Also:   java.awt.event.AdjustmentEvent
See Also:   java.awt.event.ComponentEvent
See Also:   java.awt.event.ContainerEvent
See Also:   java.awt.event.FocusEvent
See Also:   java.awt.event.InputMethodEvent
See Also:   java.awt.event.InvocationEvent
See Also:   java.awt.event.ItemEvent
See Also:   java.awt.event.HierarchyEvent
See Also:   java.awt.event.KeyEvent
See Also:   java.awt.event.MouseEvent
See Also:   java.awt.event.MouseWheelEvent
See Also:   java.awt.event.PaintEvent
See Also:   java.awt.event.TextEvent
See Also:   java.awt.event.WindowEvent
author:
   Carl Quinn
author:
   Amy Fowler
version:
   1.68 06/05/07
since:
   1.1

Field Summary
final public static long ACTION_EVENT_MASK
     The event mask for selecting action events.
final public static long ADJUSTMENT_EVENT_MASK
     The event mask for selecting adjustment events.
final public static long COMPONENT_EVENT_MASK
     The event mask for selecting component events.
final public static long CONTAINER_EVENT_MASK
     The event mask for selecting container events.
final public static long FOCUS_EVENT_MASK
     The event mask for selecting focus events.
final public static long HIERARCHY_BOUNDS_EVENT_MASK
     The event mask for selecting hierarchy bounds events.
final public static long HIERARCHY_EVENT_MASK
     The event mask for selecting hierarchy events.
final static long INPUT_METHODS_ENABLED_MASK
     The pseudo event mask for enabling input methods.
final public static long INPUT_METHOD_EVENT_MASK
     The event mask for selecting input method events.
final public static long INVOCATION_EVENT_MASK
     The event mask for selecting invocation events.
final public static long ITEM_EVENT_MASK
     The event mask for selecting item events.
final public static long KEY_EVENT_MASK
     The event mask for selecting key events.
final public static long MOUSE_EVENT_MASK
     The event mask for selecting mouse events.
final public static long MOUSE_MOTION_EVENT_MASK
     The event mask for selecting mouse motion events.
final public static long MOUSE_WHEEL_EVENT_MASK
     The event mask for selecting mouse wheel events.
final public static long PAINT_EVENT_MASK
     The event mask for selecting paint events.
final public static int RESERVED_ID_MAX
     The maximum value for reserved AWT event IDs.
final public static long TEXT_EVENT_MASK
     The event mask for selecting text events.
final public static long WINDOW_EVENT_MASK
     The event mask for selecting window events.
final public static long WINDOW_FOCUS_EVENT_MASK
     The event mask for selecting window focus events.
final public static long WINDOW_STATE_EVENT_MASK
     The event mask for selecting window state events.
protected boolean consumed
     Controls whether or not the event is sent back down to the peer once the source has processed it - false means it's sent to the peer; true means it's not.
transient boolean focusManagerIsDispatching

protected int id
     The event's id.
transient boolean isPosted


Constructor Summary
public AWTEvent(Event event)
     Constructs an AWTEvent object from the parameters of a 1.0-style event.
public AWTEvent(Object source, int id)
     Constructs an AWTEvent object with the specified source object and type.

Method Summary
protected void consume()
     Consumes this event, if this event can be consumed.
Event convertToOld()
     Converts a new event to an old one (used for compatibility).
void copyPrivateDataInto(AWTEvent that)
     Copies all private data from this event into that.
void dispatched()

public int getID()
     Returns the event type.
protected boolean isConsumed()
     Returns whether this event has been consumed.
public String paramString()
     Returns a string representing the state of this Event. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations.
public void setSource(Object newSource)
     Retargets an event to a new source.
public String toString()
     Returns a String representation of this object.

Field Detail
ACTION_EVENT_MASK
final public static long ACTION_EVENT_MASK(Code)
The event mask for selecting action events.

ADJUSTMENT_EVENT_MASK
final public static long ADJUSTMENT_EVENT_MASK(Code)
The event mask for selecting adjustment events.

COMPONENT_EVENT_MASK
final public static long COMPONENT_EVENT_MASK(Code)
The event mask for selecting component events.

CONTAINER_EVENT_MASK
final public static long CONTAINER_EVENT_MASK(Code)
The event mask for selecting container events.

FOCUS_EVENT_MASK
final public static long FOCUS_EVENT_MASK(Code)
The event mask for selecting focus events.

HIERARCHY_BOUNDS_EVENT_MASK
final public static long HIERARCHY_BOUNDS_EVENT_MASK(Code)
The event mask for selecting hierarchy bounds events.

HIERARCHY_EVENT_MASK
final public static long HIERARCHY_EVENT_MASK(Code)
The event mask for selecting hierarchy events.

INPUT_METHODS_ENABLED_MASK
final static long INPUT_METHODS_ENABLED_MASK(Code)
The pseudo event mask for enabling input methods. We're using one bit in the eventMask so we don't need a separate field inputMethodsEnabled.

INPUT_METHOD_EVENT_MASK
final public static long INPUT_METHOD_EVENT_MASK(Code)
The event mask for selecting input method events.

INVOCATION_EVENT_MASK
final public static long INVOCATION_EVENT_MASK(Code)
The event mask for selecting invocation events.

ITEM_EVENT_MASK
final public static long ITEM_EVENT_MASK(Code)
The event mask for selecting item events.

KEY_EVENT_MASK
final public static long KEY_EVENT_MASK(Code)
The event mask for selecting key events.

MOUSE_EVENT_MASK
final public static long MOUSE_EVENT_MASK(Code)
The event mask for selecting mouse events.

MOUSE_MOTION_EVENT_MASK
final public static long MOUSE_MOTION_EVENT_MASK(Code)
The event mask for selecting mouse motion events.

MOUSE_WHEEL_EVENT_MASK
final public static long MOUSE_WHEEL_EVENT_MASK(Code)
The event mask for selecting mouse wheel events.
since:
   1.4

PAINT_EVENT_MASK
final public static long PAINT_EVENT_MASK(Code)
The event mask for selecting paint events.

RESERVED_ID_MAX
final public static int RESERVED_ID_MAX(Code)
The maximum value for reserved AWT event IDs. Programs defining their own event IDs should use IDs greater than this value.

TEXT_EVENT_MASK
final public static long TEXT_EVENT_MASK(Code)
The event mask for selecting text events.

WINDOW_EVENT_MASK
final public static long WINDOW_EVENT_MASK(Code)
The event mask for selecting window events.

WINDOW_FOCUS_EVENT_MASK
final public static long WINDOW_FOCUS_EVENT_MASK(Code)
The event mask for selecting window focus events.
since:
   1.4

WINDOW_STATE_EVENT_MASK
final public static long WINDOW_STATE_EVENT_MASK(Code)
The event mask for selecting window state events.
since:
   1.4

consumed
protected boolean consumed(Code)
Controls whether or not the event is sent back down to the peer once the source has processed it - false means it's sent to the peer; true means it's not. Semantic events always have a 'true' value since they were generated by the peer in response to a low-level event.
See Also:   AWTEvent.consume
See Also:   AWTEvent.isConsumed

focusManagerIsDispatching
transient boolean focusManagerIsDispatching(Code)

id
protected int id(Code)
The event's id.
See Also:   AWTEvent.getID()
See Also:   AWTEvent.AWTEvent

isPosted
transient boolean isPosted(Code)

Constructor Detail
AWTEvent
public AWTEvent(Event event)(Code)
Constructs an AWTEvent object from the parameters of a 1.0-style event.
Parameters:
  event - the old-style event

AWTEvent
public AWTEvent(Object source, int id)(Code)
Constructs an AWTEvent object with the specified source object and type.
Parameters:
  source - the object where the event originated
Parameters:
  id - the event type

Method Detail
consume
protected void consume()(Code)
Consumes this event, if this event can be consumed. Only low-level, system events can be consumed

convertToOld
Event convertToOld()(Code)
Converts a new event to an old one (used for compatibility). If the new event cannot be converted (because no old equivalent exists) then this returns null. Note: this method is here instead of in each individual new event class in java.awt.event because we don't want to make it public and it needs to be called from java.awt.

copyPrivateDataInto
void copyPrivateDataInto(AWTEvent that)(Code)
Copies all private data from this event into that. Space is allocated for the copied data that will be freed when the that is finalized. Upon completion, this event is not changed.

dispatched
void dispatched()(Code)

getID
public int getID()(Code)
Returns the event type.

isConsumed
protected boolean isConsumed()(Code)
Returns whether this event has been consumed.

paramString
public String paramString()(Code)
Returns a string representing the state of this Event. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null. a string representation of this event

setSource
public void setSource(Object newSource)(Code)
Retargets an event to a new source. This method is typically used to retarget an event to a lightweight child Component of the original heavyweight source.
This method is intended to be used only by event targeting subsystems, such as client-defined KeyboardFocusManagers. It is not for general client use.
Parameters:
  newSource - the new Object to which the event should be dispatched
since:
   1.4

toString
public String toString()(Code)
Returns a String representation of this object.

Fields inherited from java.util.EventObject
protected transient Object source(Code)(Java Doc)

Methods inherited from java.util.EventObject
public Object getSource()(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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