org.eclipse.swt.events
Class PaintEvent

java.lang.Object
  Event
      org.eclipse.swt.events.TypedEvent
          org.eclipse.swt.events.PaintEvent

public final class PaintEvent
extends TypedEvent

Instances of this class are sent as a result of visible areas of controls requiring re-painting.

Since:

1.3

See Also:

PaintListener

Field Summary

int	count the number of following paint events which are pending which may always be zero on some platforms
GC	gc the graphics context to use when painting that is configured to use the colors, font and damaged region of the control.
int	height the height of the bounding rectangle of the region that requires painting
int	width the width of the bounding rectangle of the region that requires painting
int	x the x offset of the bounding rectangle of the region that requires painting
int	y the y offset of the bounding rectangle of the region that requires painting

Fields inherited from class org.eclipse.swt.events.TypedEvent

data, display, widget

Constructor Summary

PaintEvent(Event event)
Constructs a new instance of this class based on the information in the given untyped event.

PaintEvent(Widget widget, GC gc, Rectangle bounds)
Constructs a new instance of this class.

Method Summary

static void	addListener(Adaptable adaptable, PaintListener listener)
protected boolean	allowProcessing()
protected void	dispatchToObserver(java.lang.Object listener)
static java.lang.Object[]	getListeners(Adaptable adaptable)
protected java.lang.Class	getListenerType()
static boolean	hasListener(Adaptable adaptable)
static void	removeListener(Adaptable adaptable, PaintListener listener)
java.lang.String	toString() Returns a string containing a concise, human-readable description of the receiver.

Methods inherited from class org.eclipse.swt.events.TypedEvent

executeNext, getSource, processEvent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

gc

public GC gc

the graphics context to use when painting that is configured to use the colors, font and damaged region of the control. It is valid only during the paint and must not be disposed

x

public int x

the x offset of the bounding rectangle of the region that requires painting

y

public int y

the y offset of the bounding rectangle of the region that requires painting

width

public int width

the width of the bounding rectangle of the region that requires painting

height

public int height

the height of the bounding rectangle of the region that requires painting

count

public int count

the number of following paint events which are pending which may always be zero on some platforms

Constructor Detail

PaintEvent

public PaintEvent(Event event)

Constructs a new instance of this class based on the information in the given untyped event.

Parameters:

event - the untyped event containing the information

PaintEvent

public PaintEvent(Widget widget,
                  GC gc,
                  Rectangle bounds)

Constructs a new instance of this class.

IMPORTANT: This method is not part of the RWT public API. It is marked public only so that it can be shared within the packages provided by RWT. It should never be accessed from application code.

Method Detail

dispatchToObserver

protected void dispatchToObserver(java.lang.Object listener)

Overrides:

dispatchToObserver in class TypedEvent

getListenerType

protected java.lang.Class getListenerType()

Overrides:

getListenerType in class TypedEvent

allowProcessing

protected boolean allowProcessing()

Overrides:

allowProcessing in class TypedEvent

hasListener

public static boolean hasListener(Adaptable adaptable)

addListener

public static void addListener(Adaptable adaptable,
                               PaintListener listener)

removeListener

public static void removeListener(Adaptable adaptable,
                                  PaintListener listener)

getListeners

public static java.lang.Object[] getListeners(Adaptable adaptable)

toString

public java.lang.String toString()

Returns a string containing a concise, human-readable description of the receiver.

Overrides:

toString in class TypedEvent

Returns:

a string representation of the event