public class FocusEvent extends ComponentEvent
FocusAdapter
,
FocusListener
,
Serialized FormModifier and Type | Field and Description |
---|---|
static int |
FOCUS_FIRST
This is the first id in the range of ids used by this class.
|
static int |
FOCUS_GAINED
This is the event id for a focus gained event.
|
static int |
FOCUS_LAST
This is the last id in the range of ids used by this class.
|
static int |
FOCUS_LOST
This is the event id for a focus lost event.
|
COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN
ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK
source
Constructor and Description |
---|
FocusEvent(Component source,
int id)
Initializes a new instance of
FocusEvent with the
specified source and id. |
FocusEvent(Component source,
int id,
boolean temporary)
Initializes a new instance of
FocusEvent with the
specified source, id, and temporary status. |
FocusEvent(Component source,
int id,
boolean temporary,
Component opposite)
Initializes a new instance of
FocusEvent with the
specified source, id, temporary status, and opposite counterpart. |
Modifier and Type | Method and Description |
---|---|
Component |
getOppositeComponent()
Returns the component which received the opposite focus event.
|
boolean |
isTemporary()
This method tests whether or not the focus change is temporary or
permanent.
|
String |
paramString()
Returns a string identifying this event.
|
getComponent
getSource
public static final int FOCUS_FIRST
public static final int FOCUS_LAST
public static final int FOCUS_GAINED
public static final int FOCUS_LOST
public FocusEvent(Component source, int id, boolean temporary, Component opposite)
FocusEvent
with the
specified source, id, temporary status, and opposite counterpart. Note
that an invalid id leads to unspecified results.source
- the component that is gaining or losing focusid
- the event idtemporary
- true if the focus change is temporaryopposite
- the component receiving the opposite focus event, or nullIllegalArgumentException
- if source is nullpublic FocusEvent(Component source, int id, boolean temporary)
FocusEvent
with the
specified source, id, and temporary status. Note that an invalid id
leads to unspecified results.source
- the component that is gaining or losing focusid
- the event idtemporary
- true if the focus change is temporaryIllegalArgumentException
- if source is nullpublic FocusEvent(Component source, int id)
FocusEvent
with the
specified source and id. Note that an invalid id leads to unspecified
results.source
- the component that is gaining or losing focusid
- the event idIllegalArgumentException
- if source is nullpublic boolean isTemporary()
public Component getOppositeComponent()
public String paramString()
(getID() == FOCUS_GAINED ? "FOCUS_GAINED" : "FOCUS_LOST")
+ (isTemporary() ? ",temporary," : ",permanent,") + "opposite="
+ getOppositeComponent()
.paramString
in class ComponentEvent