Class InputMethodEvent
- All Implemented Interfaces:
Serializable
The text included with the input method event consists of two parts: committed text and composed text. Either part may be empty. The two parts together replace any uncommitted composed text sent in previous events, or the currently selected committed text. Committed text should be integrated into the text component's persistent data, it will not be sent again. Composed text may be sent repeatedly, with changes to reflect the user's editing operations. Committed text always precedes composed text.
- Since:
- 1.2
- See Also:
-
Field Summary
Modifier and TypeFieldDescriptionstatic final int
The event type indicating a changed insertion point in input method text.static final int
Marks the first integer id for the range of input method event ids.static final int
Marks the last integer id for the range of input method event ids.static final int
The event type indicating changed input method text.Fields inherited from class java.awt.AWTEvent
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
Fields inherited from class java.util.EventObject
source
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Constructor Summary
ConstructorDescriptionInputMethodEvent
(Component source, int id, long when, AttributedCharacterIterator text, int committedCharacterCount, TextHitInfo caret, TextHitInfo visiblePosition) Constructs anInputMethodEvent
with the specified source component, type, time, text, caret, and visiblePosition.InputMethodEvent
(Component source, int id, TextHitInfo caret, TextHitInfo visiblePosition) Constructs anInputMethodEvent
with the specified source component, type, caret, and visiblePosition.InputMethodEvent
(Component source, int id, AttributedCharacterIterator text, int committedCharacterCount, TextHitInfo caret, TextHitInfo visiblePosition) Constructs anInputMethodEvent
with the specified source component, type, text, caret, and visiblePosition. -
Method Summary
Modifier and TypeMethodDescriptionvoid
consume()
Consumes this event so that it will not be processed in the default manner by the source which originated it.getCaret()
Gets the caret.int
Gets the number of committed characters in the text.getText()
Gets the combined committed and composed text.Gets the position that's most important to be visible.long
getWhen()
Returns the time stamp of when this event occurred.boolean
Returns whether or not this event has been consumed.Returns a parameter string identifying this event.Methods inherited from class java.util.EventObject
getSource
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Field Details
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INPUT_METHOD_FIRST
Marks the first integer id for the range of input method event ids.- See Also:
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INPUT_METHOD_TEXT_CHANGED
The event type indicating changed input method text. This event is generated by input methods while processing input.- See Also:
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CARET_POSITION_CHANGED
The event type indicating a changed insertion point in input method text. This event is generated by input methods while processing input if only the caret changed.- See Also:
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INPUT_METHOD_LAST
Marks the last integer id for the range of input method event ids.- See Also:
-
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Constructor Details
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InputMethodEvent
public InputMethodEvent(Component source, int id, long when, AttributedCharacterIterator text, int committedCharacterCount, TextHitInfo caret, TextHitInfo visiblePosition) Constructs anInputMethodEvent
with the specified source component, type, time, text, caret, and visiblePosition.The offsets of caret and visiblePosition are relative to the current composed text; that is, the composed text within
text
if this is anINPUT_METHOD_TEXT_CHANGED
event, the composed text within thetext
of the precedingINPUT_METHOD_TEXT_CHANGED
event otherwise.Note that passing in an invalid
id
results in unspecified behavior. This method throws anIllegalArgumentException
ifsource
isnull
.- Parameters:
source
- the object where the event originatedid
- the event typewhen
- a long integer that specifies the time the event occurredtext
- the combined committed and composed text, committed text first; must benull
when the event type isCARET_POSITION_CHANGED
; may benull
forINPUT_METHOD_TEXT_CHANGED
if there's no committed or composed textcommittedCharacterCount
- the number of committed characters in the textcaret
- the caret (a.k.a. insertion point);null
if there's no caret within current composed textvisiblePosition
- the position that's most important to be visible;null
if there's no recommendation for a visible position within current composed text- Throws:
IllegalArgumentException
- ifid
is not in the rangeINPUT_METHOD_FIRST
..INPUT_METHOD_LAST
; or if id isCARET_POSITION_CHANGED
andtext
is notnull
; or ifcommittedCharacterCount
is not in the range0
..(text.getEndIndex() - text.getBeginIndex())
IllegalArgumentException
- ifsource
is null- Since:
- 1.4
-
InputMethodEvent
public InputMethodEvent(Component source, int id, AttributedCharacterIterator text, int committedCharacterCount, TextHitInfo caret, TextHitInfo visiblePosition) Constructs anInputMethodEvent
with the specified source component, type, text, caret, and visiblePosition.The offsets of caret and visiblePosition are relative to the current composed text; that is, the composed text within
text
if this is anINPUT_METHOD_TEXT_CHANGED
event, the composed text within thetext
of the precedingINPUT_METHOD_TEXT_CHANGED
event otherwise. The time stamp for this event is initialized by invokingEventQueue.getMostRecentEventTime()
.Note that passing in an invalid
id
results in unspecified behavior. This method throws anIllegalArgumentException
ifsource
isnull
.- Parameters:
source
- the object where the event originatedid
- the event typetext
- the combined committed and composed text, committed text first; must benull
when the event type isCARET_POSITION_CHANGED
; may benull
forINPUT_METHOD_TEXT_CHANGED
if there's no committed or composed textcommittedCharacterCount
- the number of committed characters in the textcaret
- the caret (a.k.a. insertion point);null
if there's no caret within current composed textvisiblePosition
- the position that's most important to be visible;null
if there's no recommendation for a visible position within current composed text- Throws:
IllegalArgumentException
- ifid
is not in the rangeINPUT_METHOD_FIRST
..INPUT_METHOD_LAST
; or if id isCARET_POSITION_CHANGED
andtext
is notnull
; or ifcommittedCharacterCount
is not in the range0
..(text.getEndIndex() - text.getBeginIndex())
IllegalArgumentException
- ifsource
is null
-
InputMethodEvent
Constructs anInputMethodEvent
with the specified source component, type, caret, and visiblePosition. The text is set tonull
,committedCharacterCount
to 0.The offsets of
caret
andvisiblePosition
are relative to the current composed text; that is, the composed text within thetext
of the precedingINPUT_METHOD_TEXT_CHANGED
event if the event being constructed as aCARET_POSITION_CHANGED
event. For anINPUT_METHOD_TEXT_CHANGED
event without text,caret
andvisiblePosition
must benull
. The time stamp for this event is initialized by invokingEventQueue.getMostRecentEventTime()
.Note that passing in an invalid
id
results in unspecified behavior. This method throws anIllegalArgumentException
ifsource
isnull
.- Parameters:
source
- the object where the event originatedid
- the event typecaret
- the caret (a.k.a. insertion point);null
if there's no caret within current composed textvisiblePosition
- the position that's most important to be visible;null
if there's no recommendation for a visible position within current composed text- Throws:
IllegalArgumentException
- ifid
is not in the rangeINPUT_METHOD_FIRST
..INPUT_METHOD_LAST
IllegalArgumentException
- ifsource
is null
-
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Method Details
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getText
Gets the combined committed and composed text. Characters from index 0 to indexgetCommittedCharacterCount() - 1
are committed text, the remaining characters are composed text.- Returns:
- the text. Always null for CARET_POSITION_CHANGED; may be null for INPUT_METHOD_TEXT_CHANGED if there's no composed or committed text.
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getCommittedCharacterCount
public int getCommittedCharacterCount()Gets the number of committed characters in the text.- Returns:
- the number of committed characters in the text
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getCaret
Gets the caret.The offset of the caret is relative to the current composed text; that is, the composed text within getText() if this is an
INPUT_METHOD_TEXT_CHANGED
event, the composed text within getText() of the precedingINPUT_METHOD_TEXT_CHANGED
event otherwise.- Returns:
- the caret (a.k.a. insertion point). Null if there's no caret within current composed text.
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getVisiblePosition
Gets the position that's most important to be visible.The offset of the visible position is relative to the current composed text; that is, the composed text within getText() if this is an
INPUT_METHOD_TEXT_CHANGED
event, the composed text within getText() of the precedingINPUT_METHOD_TEXT_CHANGED
event otherwise.- Returns:
- the position that's most important to be visible. Null if there's no recommendation for a visible position within current composed text.
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consume
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isConsumed
public boolean isConsumed()Returns whether or not this event has been consumed.- Overrides:
isConsumed
in classAWTEvent
- Returns:
true
if this event has been consumed; otherwisefalse
- See Also:
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getWhen
public long getWhen()Returns the time stamp of when this event occurred.- Returns:
- this event's timestamp
- Since:
- 1.4
-
paramString
Returns a parameter string identifying this event. This method is useful for event-logging and for debugging. It contains the event ID in text form, the characters of the committed and composed text separated by "+", the number of committed characters, the caret, and the visible position.- Overrides:
paramString
in classAWTEvent
- Returns:
- a string identifying the event and its attributes
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