com.trolltech.qt.gui
Class QPaintEvent

java.lang.Object
  com.trolltech.qt.QSignalEmitter
      com.trolltech.qt.QtJambiObject
          com.trolltech.qt.core.QEvent
              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(), and 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, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9

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 method returns the QPaintEvent instance pointed to by nativePointer.
protected boolean	m_erased()
protected QRect	m_rect()
protected QRegion	m_region()
QRect	rect() Returns the rectangle that needs to be updated.
QRegion	region() Returns the region that needs to be updated.
protected void	setM_erased(boolean m_erased)
protected void	setM_rect(QRect m_rect)
protected void	setM_region(QRegion m_region)
java.lang.String	toString() Returns a string representation of the this QPaintEvent.

Methods inherited from class com.trolltech.qt.core.QEvent

accept, ignore, isAccepted, registerEventType, registerEventType, setAccepted, setT, spontaneous, t, type

Methods inherited from class com.trolltech.qt.QtJambiObject

dispose, disposed, equals, 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, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.trolltech.qt.QtJambiInterface

disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership

Constructor Detail

QPaintEvent

public QPaintEvent(QRect paintRect)

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

QPaintEvent

public QPaintEvent(QRegion paintRegion)

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

Method Detail

rect

public final QRect rect()

Returns the rectangle that needs to be updated.

See also:

region(), and QPainter::setClipRect().

region

public final QRegion region()

Returns the region that needs to be updated.

See also:

rect(), and QPainter::setClipRegion().

setM_rect

protected final void setM_rect(QRect m_rect)

m_rect

protected final QRect m_rect()

setM_erased

protected final void setM_erased(boolean m_erased)

m_erased

protected final boolean m_erased()

setM_region

protected final void setM_region(QRegion m_region)

m_region

protected final QRegion m_region()

fromNativePointer

public static QPaintEvent fromNativePointer(QNativePointer nativePointer)

This method returns the QPaintEvent instance pointed to by nativePointer.

toString

public java.lang.String toString()

Returns a string representation of the this QPaintEvent.

Overrides:

toString in class QEvent