QWidgetEffectSourcePrivate Class Reference

#include <qwidget_p.h>

Inheritance diagram for QWidgetEffectSourcePrivate:

Public Functions
QRectF	boundingRect (Qt::CoordinateSystem system) const
void	detach ()
QRect	deviceRect () const
void	draw (QPainter *p)
void	effectBoundingRectChanged ()
const QGraphicsItem *	graphicsItem () const
bool	isPixmap () const
QPixmap	pixmap (Qt::CoordinateSystem system, QPoint *offset, QGraphicsEffect::PixmapPadMode mode) const
	QWidgetEffectSourcePrivate (QWidget *widget)
const QStyleOption *	styleOption () const
void	update ()
const QWidget *	widget () const
Public Functions inherited from QGraphicsEffectSourcePrivate
QGraphicsEffect::PixmapPadMode	currentCachedMode () const
Qt::CoordinateSystem	currentCachedSystem () const
void	invalidateCache (InvalidateReason reason=SourceChanged) const
	QGraphicsEffectSourcePrivate ()
void	setCachedOffset (const QPoint &offset)
virtual	~QGraphicsEffectSourcePrivate ()
Public Functions inherited from QObjectPrivate
void	_q_reregisterTimers (void *pointer)
void	addConnection (int signal, Connection *c)
void	cleanConnectionLists ()
void	connectNotify (const char *signal)
void	deleteChildren ()
void	disconnectNotify (const char *signal)
bool	isSender (const QObject *receiver, const char *signal) const
bool	isSignalConnected (uint signalIdx) const
	Returns true if the signal with index signal_index from object sender is connected. More...
void	moveToThread_helper ()
	QObjectPrivate (int version=QObjectPrivateVersion)
QObjectList	receiverList (const char *signal) const
QObjectList	senderList () const
void	setParent_helper (QObject *)
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData)
int	signalIndex (const char *signalName) const
	Returns the signal index used in the internal connectionLists vector. More...
virtual	~QObjectPrivate ()
Public Functions inherited from QObjectData
virtual	~QObjectData ()=0

Public Variables
QWidgetPaintContext *	context
QTransform	lastEffectTransform
QWidget *	m_widget
bool	updateDueToGraphicsEffect
Public Variables inherited from QObjectPrivate
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
quint32	connectedSignals [2]
QObjectConnectionListVector *	connectionLists
Sender *	currentSender
QList< QPointer< QObject > >	eventFilters
ExtraData *	extraData
QString	objectName
Connection *	senders
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
QThreadData *	threadData
void *	unused
Public Variables inherited from QObjectData
uint	blockSig: 1
QObjectList	children
uint	hasGuards: 1
uint	inEventHandler: 1
uint	inThreadChangeEvent: 1
uint	isWidget: 1
QMetaObject *	metaObject
uint	ownObjectName: 1
QObject *	parent
uint	pendTimer: 1
int	postedEvents
QObject *	q_ptr
uint	receiveChildEvents: 1
uint	sendChildEvents: 1
uint	unused: 22
uint	wasDeleted: 1

Additional Inherited Members
Public Types inherited from QGraphicsEffectSourcePrivate
enum	InvalidateReason { TransformChanged, EffectRectChanged, SourceChanged }
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)
Static Public Functions inherited from QObjectPrivate
static void	clearGuards (QObject *)
static QObjectPrivate *	get (QObject *o)
static void	resetCurrentSender (QObject *receiver, Sender *currentSender, Sender *previousSender)
static Sender *	setCurrentSender (QObject *receiver, Sender *sender)
static void	signalSignature (const QMetaMethod &signal, QVarLengthArray< char > *result)

Detailed Description

Definition at line 945 of file qwidget_p.h.

Constructors and Destructors

QWidgetEffectSourcePrivate()

QWidgetEffectSourcePrivate::QWidgetEffectSourcePrivate ( QWidget *  widget )

inline

Definition at line 948 of file qwidget_p.h.

        : QGraphicsEffectSourcePrivate(), m_widget(widget), context(0), updateDueToGraphicsEffect(false)
    {}

Functions

boundingRect()

QRectF QWidgetEffectSourcePrivate::boundingRect ( Qt::CoordinateSystem  system ) const

virtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 6013 of file qwidget.cpp.

{
    if (system != Qt::DeviceCoordinates)
        return m_widget->rect();

    if (!context) {
        // Device coordinates without context not yet supported.
        qWarning("QGraphicsEffectSource::boundingRect: Not yet implemented, lacking device context");
        return QRectF();
    }

    return context->painter->worldTransform().mapRect(m_widget->rect());
}

detach()

void QWidgetEffectSourcePrivate::detach ( )

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 952 of file qwidget_p.h.

    { m_widget->d_func()->graphicsEffect = 0; }

deviceRect()

QRect QWidgetEffectSourcePrivate::deviceRect ( ) const

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 984 of file qwidget_p.h.

    { return m_widget->window()->rect(); }

draw()

void QWidgetEffectSourcePrivate::draw ( QPainter *  p )

virtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 6027 of file qwidget.cpp.

{
    if (!context || context->painter != painter) {
        m_widget->render(painter);
        return;
    }

    // The region saved in the context is neither clipped to the rect
    // nor the mask, so we have to clip it here before calling drawWidget.
    QRegion toBePainted = context->rgn;
    toBePainted &= m_widget->rect();
    QWidgetPrivate *wd = qt_widget_private(m_widget);
    if (wd->extra && wd->extra->hasMask)
        toBePainted &= wd->extra->mask;

    wd->drawWidget(context->pdev, toBePainted, context->offset, context->flags,
                   context->sharedPainter, context->backingStore);
}

effectBoundingRectChanged()

void QWidgetEffectSourcePrivate::effectBoundingRectChanged ( )

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 971 of file qwidget_p.h.

    {
        // ### This function should take a rect parameter; then we can avoid
        // updating too much on the parent widget.
        if (QWidget *parent = m_widget->parentWidget())
            parent->update();
        else
            update();
    }

graphicsItem()

const QGraphicsItem* QWidgetEffectSourcePrivate::graphicsItem ( ) const

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 955 of file qwidget_p.h.

    { return 0; }

isPixmap()

bool QWidgetEffectSourcePrivate::isPixmap ( ) const

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 968 of file qwidget_p.h.

    { return false; }

pixmap()

QPixmap QWidgetEffectSourcePrivate::pixmap ( Qt::CoordinateSystem  system, QPoint *  offset, QGraphicsEffect::PixmapPadMode  mode  ) const

virtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 6046 of file qwidget.cpp.

{
    const bool deviceCoordinates = (system == Qt::DeviceCoordinates);
    if (!context && deviceCoordinates) {
        // Device coordinates without context not yet supported.
        qWarning("QGraphicsEffectSource::pixmap: Not yet implemented, lacking device context");
        return QPixmap();
    }

    QPoint pixmapOffset;
    QRectF sourceRect = m_widget->rect();

    if (deviceCoordinates) {
        const QTransform &painterTransform = context->painter->worldTransform();
        sourceRect = painterTransform.mapRect(sourceRect);
        pixmapOffset = painterTransform.map(pixmapOffset);
    }

    QRect effectRect;

    if (mode == QGraphicsEffect::PadToEffectiveBoundingRect)
        effectRect = m_widget->graphicsEffect()->boundingRectFor(sourceRect).toAlignedRect();
    else if (mode == QGraphicsEffect::PadToTransparentBorder)
        effectRect = sourceRect.adjusted(-1, -1, 1, 1).toAlignedRect();
    else
        effectRect = sourceRect.toAlignedRect();

    if (offset)
        *offset = effectRect.topLeft();

    pixmapOffset -= effectRect.topLeft();

    QPixmap pixmap(effectRect.size());
    pixmap.fill(Qt::transparent);
    m_widget->render(&pixmap, pixmapOffset, QRegion(), QWidget::DrawChildren);
    return pixmap;
}

styleOption()

const QStyleOption* QWidgetEffectSourcePrivate::styleOption ( ) const

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 981 of file qwidget_p.h.

    { return 0; }

update()

void QWidgetEffectSourcePrivate::update ( )

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 961 of file qwidget_p.h.

    {
        updateDueToGraphicsEffect = true;
        m_widget->update();
        updateDueToGraphicsEffect = false;
    }

widget()

const QWidget* QWidgetEffectSourcePrivate::widget ( ) const

inlinevirtual

Implements QGraphicsEffectSourcePrivate.

Definition at line 958 of file qwidget_p.h.

    { return m_widget; }

Properties

context

QWidgetPaintContext* QWidgetEffectSourcePrivate::context

Definition at line 993 of file qwidget_p.h.

Referenced by QWidgetPrivate::drawWidget().

lastEffectTransform

QTransform QWidgetEffectSourcePrivate::lastEffectTransform

Definition at line 994 of file qwidget_p.h.

Referenced by QWidgetPrivate::drawWidget().

m_widget

QWidget* QWidgetEffectSourcePrivate::m_widget

Definition at line 992 of file qwidget_p.h.

updateDueToGraphicsEffect

bool QWidgetEffectSourcePrivate::updateDueToGraphicsEffect

Definition at line 995 of file qwidget_p.h.

Referenced by QWidgetPrivate::invalidateGraphicsEffectsRecursively().

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The documentation for this class was generated from the following files:

• /src/gui/kernel/qwidget_p.h
• /src/gui/kernel/qwidget.cpp