com.trolltech.qt.gui
Class QPaintEvent

java.lang.Object
  extended by com.trolltech.qt.QSignalEmitter
      extended by com.trolltech.qt.QtJambiObject
          extended by com.trolltech.qt.core.QEvent
              extended by com.trolltech.qt.gui.QPaintEvent
All Implemented Interfaces:
QtJambiInterface

public class QPaintEvent
extends QEvent

The QPaintEvent class contains event parameters for paint events.

Paint events are sent to widgets that need to update themselves, for instance when part of a widget is exposed because a covering widget was moved.

The event contains a region that needs to be updated, and a rect that is the bounding rectangle of that region. Both are provided because many widgets can't make much use of region, and rect can be much faster than region.boundingRect(). Painting is clipped to region during the processing of a paint event.

See Also:
QPainter, QWidget::update, QWidget::repaint, QWidget::paintEvent

Nested Class Summary
 
Nested classes/interfaces inherited from class com.trolltech.qt.core.QEvent
QEvent.Type
 
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
QSignalEmitter.Signal0, QSignalEmitter.Signal1<A>, QSignalEmitter.Signal2<A,B>, QSignalEmitter.Signal3<A,B,C>, QSignalEmitter.Signal4<A,B,C,D>, QSignalEmitter.Signal5<A,B,C,D,E>, QSignalEmitter.Signal6<A,B,C,D,E,F>, QSignalEmitter.Signal7<A,B,C,D,E,F,G>, QSignalEmitter.Signal8<A,B,C,D,E,F,G,H>, QSignalEmitter.Signal9<A,B,C,D,E,F,G,H,I>
 
Constructor Summary
QPaintEvent(QRect paintRect)
          Constructs a paint event object with the rectangle that needs to be updated.
QPaintEvent(QRegion paintRegion)
          Constructs a paint event object with the region that needs to be updated.
 
Method Summary
static QPaintEvent fromNativePointer(QNativePointer nativePointer)
          This function returns the QPaintEvent instance pointed to by nativePointer
 QRect rect()
          Returns the rectangle that needs to be updated.
 QRegion region()
          Returns the region that needs to be updated.
 
Methods inherited from class com.trolltech.qt.core.QEvent
accept, ignore, isAccepted, setAccepted, setT, spontaneous, t, type
 
Methods inherited from class com.trolltech.qt.QtJambiObject
dispose, disposed, finalize, reassignNativeResources, tr, tr, tr
 
Methods inherited from class com.trolltech.qt.QSignalEmitter
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface com.trolltech.qt.QtJambiInterface
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership
 

Constructor Detail

QPaintEvent

public QPaintEvent(QRegion paintRegion)

Constructs a paint event object with the region that needs to be updated. The region is specified by paintRegion.


QPaintEvent

public QPaintEvent(QRect paintRect)

Constructs a paint event object with the rectangle that needs to be updated. The region is specified by paintRect.

Method Detail

rect

public final QRect rect()

Returns the rectangle that needs to be updated.

See Also:
region, QPainter::setClipRect

region

public final QRegion region()

Returns the region that needs to be updated.

See Also:
rect, QPainter::setClipRegion

fromNativePointer

public static QPaintEvent fromNativePointer(QNativePointer nativePointer)
This function returns the QPaintEvent instance pointed to by nativePointer

Parameters:
nativePointer - the QNativePointer of which object should be returned.