java.awt.event
Class PaintEvent
java.lang.Object
|
+--java.util.EventObject
|
+--java.awt.AWTEvent
|
+--java.awt.event.ComponentEvent
|
+--java.awt.event.PaintEvent
- 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
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.AWTEvent |
ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, id, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK |
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. |
java.lang.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.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
PAINT_FIRST
public static final int PAINT_FIRST
- Marks the first integer id for the range of paint event ids.
Value 800 is assigned to PAINT_FIRST.
PAINT_LAST
public static final int PAINT_LAST
- Marks the last integer id for the range of paint event ids.
Value 801 is assigned to PAINT_LAST.
PAINT
public static final int PAINT
- The paint event type.
Value PAINT_FIRST is assigned to PAINT.
UPDATE
public static final int UPDATE
- The update event type.
Value PAINT_FIRST + 1 is assigned to UPDATE.
PaintEvent
public PaintEvent(Component source,
int id,
Rectangle updateRect)
- Constructs a PaintEvent object with the specified source component
and type.
- Parameters:
source
- the object where the event originatedid
- the event typeupdateRect
- the rectangle area which needs to be repainted
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 java.lang.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
- Following copied from class:
java.awt.event.ComponentEvent
- Returns:
- a string identifying the event and its attributes