QGraphicsEllipseItem Class

Member Function Documentation

QGraphicsEllipseItem::QGraphicsEllipseItem(QGraphicsItem * parent = 0)

Constructs a QGraphicsEllipseItem. parent is passed to QAbstractGraphicsShapeItem's constructor.

See also QGraphicsScene::addItem().

QGraphicsEllipseItem::QGraphicsEllipseItem(const QRectF & rect, QGraphicsItem * parent = 0)

Constructs a QGraphicsEllipseItem using rect as the default rectangle. parent is passed to QAbstractGraphicsShapeItem's constructor.

See also QGraphicsScene::addItem().

QGraphicsEllipseItem::QGraphicsEllipseItem(qreal x, qreal y, qreal width, qreal height, QGraphicsItem * parent = 0)

Constructs a QGraphicsEllipseItem using the rectangle defined by (x, y) and the given width and height, as the default rectangle. parent is passed to QAbstractGraphicsShapeItem's constructor.

This function was introduced in Qt 4.3.

See also QGraphicsScene::addItem().

QGraphicsEllipseItem::~QGraphicsEllipseItem()

Destroys the QGraphicsEllipseItem.

QRectF QGraphicsEllipseItem::boundingRect() const [virtual]

Reimplemented from QGraphicsItem::boundingRect().

bool QGraphicsEllipseItem::contains(const QPointF & point) const [virtual]

Reimplemented from QGraphicsItem::contains().

bool QGraphicsEllipseItem::isObscuredBy(const QGraphicsItem * item) const [virtual]

Reimplemented from QGraphicsItem::isObscuredBy().

QPainterPath QGraphicsEllipseItem::opaqueArea() const [virtual]

Reimplemented from QGraphicsItem::opaqueArea().

void QGraphicsEllipseItem::paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget = 0) [virtual]

Reimplemented from QGraphicsItem::paint().

QRectF QGraphicsEllipseItem::rect() const

Returns the item's ellipse geometry as a QRectF.

See also setRect() and QPainter::drawEllipse().

void QGraphicsEllipseItem::setRect(const QRectF & rect)

Sets the item's ellipse geometry to rect. The rectangle's left edge defines the left edge of the ellipse, and the rectangle's top edge describes the top of the ellipse. The height and width of the rectangle describe the height and width of the ellipse.

See also rect() and QPainter::drawEllipse().

void QGraphicsEllipseItem::setRect(qreal x, qreal y, qreal width, qreal height)

Sets the item's rectangle to the rectangle defined by (x, y) and the given width and height.

This convenience function is equivalent to calling setRect(QRectF(x, y, width, height))

See also rect().

void QGraphicsEllipseItem::setSpanAngle(int angle)

Sets the span angle for an ellipse segment to angle, which is in 16ths of a degree. This angle is used together with startAngle() to represent an ellipse segment (a pie). By default, the span angle is 5760 (360 * 16, a full ellipse).

See also spanAngle(), setStartAngle(), and QPainter::drawPie().

void QGraphicsEllipseItem::setStartAngle(int angle)

Sets the start angle for an ellipse segment to angle, which is in 16ths of a degree. This angle is used together with spanAngle() for representing an ellipse segment (a pie). By default, the start angle is 0.

See also startAngle(), setSpanAngle(), and QPainter::drawPie().

QPainterPath QGraphicsEllipseItem::shape() const [virtual]

Reimplemented from QGraphicsItem::shape().

int QGraphicsEllipseItem::spanAngle() const

Returns the span angle of an ellipse segment in 16ths of a degree. This angle is used together with startAngle() for representing an ellipse segment (a pie). By default, this function returns 5760 (360 * 16, a full ellipse).

See also setSpanAngle() and startAngle().

int QGraphicsEllipseItem::startAngle() const

Returns the start angle for an ellipse segment in 16ths of a degree. This angle is used together with spanAngle() for representing an ellipse segment (a pie). By default, the start angle is 0.

See also setStartAngle() and spanAngle().

int QGraphicsEllipseItem::type() const [virtual]

Reimplemented from QGraphicsItem::type().