Class AdjustmentEvent
java.lang.Object
java.util.EventObject
java.awt.AWTEvent
java.awt.event.AdjustmentEvent
- All Implemented Interfaces:
- Serializable
The adjustment event emitted by Adjustable objects like
 
Scrollbar and ScrollPane.
 When the user changes the value of the scrolling component,
 it receives an instance of AdjustmentEvent.
 
 An unspecified behavior will be caused if the id parameter
 of any particular AdjustmentEvent instance is not
 in the range from ADJUSTMENT_FIRST to ADJUSTMENT_LAST.
 
 The type of any AdjustmentEvent instance takes one of the following
 values:
                     
-  UNIT_INCREMENT
-  UNIT_DECREMENT
-  BLOCK_INCREMENT
-  BLOCK_DECREMENT
-  TRACK
- Since:
- 1.1
- See Also:
- 
Field SummaryFieldsModifier and TypeFieldDescriptionstatic final intMarks the first integer id for the range of adjustment event ids.static final intMarks the last integer id for the range of adjustment event ids.static final intThe adjustment value changed event.static final intThe block decrement adjustment type.static final intThe block increment adjustment type.static final intThe absolute tracking adjustment type.static final intThe unit decrement adjustment type.static final intThe unit increment adjustment type.Fields declared in class java.awt.AWTEventACTION_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_MASKFields declared in class java.util.EventObjectsource
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Constructor SummaryConstructorsConstructorDescriptionAdjustmentEvent(Adjustable source, int id, int type, int value) Constructs anAdjustmentEventobject with the specifiedAdjustablesource, event type, adjustment type, and value.AdjustmentEvent(Adjustable source, int id, int type, int value, boolean isAdjusting) Constructs anAdjustmentEventobject with the specified Adjustable source, event type, adjustment type, and value.
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Method SummaryModifier and TypeMethodDescriptionReturns theAdjustableobject where this event originated.intReturns the type of adjustment which caused the value changed event.intgetValue()Returns the current value in the adjustment event.booleanReturnstrueif this is one of multiple adjustment events.Methods declared in class java.awt.AWTEventconsume, getID, isConsumed, paramString, setSource, toStringMethods declared in class java.util.EventObjectgetSource
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Field Details- 
ADJUSTMENT_FIRSTpublic static final int ADJUSTMENT_FIRSTMarks the first integer id for the range of adjustment event ids.- See Also:
 
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ADJUSTMENT_LASTpublic static final int ADJUSTMENT_LASTMarks the last integer id for the range of adjustment event ids.- See Also:
 
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ADJUSTMENT_VALUE_CHANGEDpublic static final int ADJUSTMENT_VALUE_CHANGEDThe adjustment value changed event.- See Also:
 
- 
UNIT_INCREMENT
- 
UNIT_DECREMENT
- 
BLOCK_DECREMENT
- 
BLOCK_INCREMENT
- 
TRACK
 
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Constructor Details- 
AdjustmentEventConstructs anAdjustmentEventobject with the specifiedAdjustablesource, event type, adjustment type, and value.This method throws an IllegalArgumentExceptionifsourceisnull.- Parameters:
- source- The- Adjustableobject where the event originated
- id- An integer indicating the type of event. For information on allowable values, see the class description for- AdjustmentEvent
- type- An integer indicating the adjustment type. For information on allowable values, see the class description for- AdjustmentEvent
- value- The current value of the adjustment
- Throws:
- IllegalArgumentException- if- sourceis null
- See Also:
 
- 
AdjustmentEventConstructs anAdjustmentEventobject with the specified Adjustable source, event type, adjustment type, and value.This method throws an IllegalArgumentExceptionifsourceisnull.- Parameters:
- source- The- Adjustableobject where the event originated
- id- An integer indicating the type of event. For information on allowable values, see the class description for- AdjustmentEvent
- type- An integer indicating the adjustment type. For information on allowable values, see the class description for- AdjustmentEvent
- value- The current value of the adjustment
- isAdjusting- A boolean that equals- trueif the event is one of a series of multiple adjusting events, otherwise- false
- Throws:
- IllegalArgumentException- if- sourceis null
- Since:
- 1.4
- See Also:
 
 
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Method Details- 
getAdjustableReturns theAdjustableobject where this event originated.- Returns:
- the Adjustableobject where this event originated
 
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getValuepublic int getValue()Returns the current value in the adjustment event.- Returns:
- the current value in the adjustment event
 
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getAdjustmentTypepublic int getAdjustmentType()Returns the type of adjustment which caused the value changed event. It will have one of the following values:- Returns:
- one of the adjustment values listed above
 
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getValueIsAdjustingpublic boolean getValueIsAdjusting()Returnstrueif this is one of multiple adjustment events.- Returns:
- trueif this is one of multiple adjustment events, otherwise returns- false
- Since:
- 1.4
 
 
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