- java.lang.Object
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- java.util.EventObject
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- java.awt.AWTEvent
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- java.awt.event.ComponentEvent
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- java.awt.event.PaintEvent
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- 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.An unspecified behavior will be caused if the
idparameter of any particularPaintEventinstance is not in the range fromPAINT_FIRSTtoPAINT_LAST.- Since:
- 1.1
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static intPAINTThe paint event type.static intPAINT_FIRSTMarks the first integer id for the range of paint event ids.static intPAINT_LASTMarks the last integer id for the range of paint event ids.static intUPDATEThe update event type.-
Fields declared in class java.awt.event.ComponentEvent
COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN
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Fields declared in 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
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Fields declared in class java.util.EventObject
source
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Constructor Summary
Constructors Constructor Description PaintEvent(Component source, int id, Rectangle updateRect)Constructs aPaintEventobject with the specified source component and type.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description RectanglegetUpdateRect()Returns the rectangle representing the area which needs to be repainted in response to this event.voidsetUpdateRect(Rectangle updateRect)Sets the rectangle representing the area which needs to be repainted in response to this event.-
Methods declared in class java.awt.event.ComponentEvent
getComponent, paramString
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Methods declared in class java.util.EventObject
getSource
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Field Detail
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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
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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
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PAINT
public static final int PAINT
The paint event type.- See Also:
- Constant Field Values
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UPDATE
public static final int UPDATE
The update event type.- See Also:
- Constant Field Values
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Constructor Detail
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PaintEvent
public PaintEvent(Component source, int id, Rectangle updateRect)
Constructs aPaintEventobject with the specified source component and type.This method throws an
IllegalArgumentExceptionifsourceisnull.- Parameters:
source- The object where the event originatedid- The integer that identifies the event type. For information on allowable values, see the class description forPaintEventupdateRect- The rectangle area which needs to be repainted- Throws:
IllegalArgumentException- ifsourceis null- See Also:
EventObject.getSource(),AWTEvent.getID(),getUpdateRect()
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Method Detail
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getUpdateRect
public Rectangle getUpdateRect()
Returns the rectangle representing the area which needs to be repainted in response to this event.- Returns:
- the rectangle representing the area which needs to be repainted in response to this event
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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
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