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JavaTM 2 Platform Std. Ed. v1.5.0

java.awt.event
Class PaintEvent

java.lang.Object
  extended by java.util.EventObject
      extended by java.awt.AWTEvent
          extended by java.awt.event.ComponentEvent
              extended by java.awt.event.PaintEvent
All Implemented Interfaces:
Serializable

public class PaintEvent
extends ComponentEvent

The component-level paint event. This event is a special type which is used to ensure that paint/update method calls are serialized along with the other events delivered from the event queue. This event is not designed to be used with the Event Listener model; programs should continue to override paint/update methods in order render themselves properly.

Since:
1.1
See Also:
Serialized Form

Field Summary
static int PAINT
          The paint event type.
static int PAINT_FIRST
          Marks the first integer id for the range of paint event ids.
static int PAINT_LAST
          Marks the last integer id for the range of paint event ids.
static int UPDATE
          The update event type.
 
Fields inherited from class java.awt.event.ComponentEvent
COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN
 
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
 
Constructor Summary
PaintEvent(Component source, int id, Rectangle updateRect)
          Constructs a PaintEvent object with the specified source component and type.
 
Method Summary
 Rectangle getUpdateRect()
          Returns the rectangle representing the area which needs to be repainted in response to this event.
 String paramString()
          Returns a parameter string identifying this event.
 void setUpdateRect(Rectangle updateRect)
          Sets the rectangle representing the area which needs to be repainted in response to this event.
 
Methods inherited from class java.awt.event.ComponentEvent
getComponent
 
Methods inherited from class java.awt.AWTEvent
consume, getID, isConsumed, setSource, toString
 
Methods inherited from class java.util.EventObject
getSource
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

PAINT_FIRST

public static final int PAINT_FIRST
Marks the first integer id for the range of paint event ids.

See Also:
Constant Field Values

PAINT_LAST

public static final int PAINT_LAST
Marks the last integer id for the range of paint event ids.

See Also:
Constant Field Values

PAINT

public static final int PAINT
The paint event type.

See Also:
Constant Field Values

UPDATE

public static final int UPDATE
The update event type.

See Also:
Constant Field Values
Constructor Detail

PaintEvent

public PaintEvent(Component source,
                  int id,
                  Rectangle updateRect)
Constructs a PaintEvent object with the specified source component and type.

Note that passing in an invalid id results in unspecified behavior. This method throws an IllegalArgumentException if source is null.

Parameters:
source - the object where the event originated
id - the event type
updateRect - the rectangle area which needs to be repainted
Throws:
IllegalArgumentException - if source is null
Method Detail

getUpdateRect

public Rectangle getUpdateRect()
Returns the rectangle representing the area which needs to be repainted in response to this event.


setUpdateRect

public void setUpdateRect(Rectangle updateRect)
Sets the rectangle representing the area which needs to be repainted in response to this event.

Parameters:
updateRect - the rectangle area which needs to be repainted

paramString

public String paramString()
Description copied from class: ComponentEvent
Returns a parameter string identifying this event. This method is useful for event-logging and for debugging.

Overrides:
paramString in class ComponentEvent
Returns:
a string identifying the event and its attributes

Copyright 2003 Sun Microsystems, Inc. All rights reserved