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QGraphicsPolygonItem Class Reference

The QGraphicsPolygonItem class provides a polygon item that you can add to a QGraphicsScene. More...

 #include <QGraphicsPolygonItem>

Inherits: QAbstractGraphicsShapeItem.

Inherited by:

This class was introduced in Qt 4.2.

List of all members, including inherited members

Public Functions

	QGraphicsPolygonItem ( QGraphicsItem * parent = 0 )
	QGraphicsPolygonItem ( const QPolygonF & polygon, QGraphicsItem * parent = 0 )
	~QGraphicsPolygonItem ()
Qt::FillRule	fillRule () const
QPolygonF	polygon () const
void	setFillRule ( Qt::FillRule rule )
void	setPolygon ( const QPolygonF & polygon )

Reimplemented Public Functions

virtual QRectF	boundingRect () const
virtual bool	contains ( const QPointF & point ) const
virtual bool	isObscuredBy ( const QGraphicsItem * item ) const
virtual QPainterPath	opaqueArea () const
virtual void	paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget = 0 )
virtual QPainterPath	shape () const
virtual int	type () const

6 public functions inherited from QAbstractGraphicsShapeItem
177 public functions inherited from QGraphicsItem

Additional Inherited Members

2 static public members inherited from QGraphicsItem
24 protected functions inherited from QGraphicsItem

Detailed Description

The QGraphicsPolygonItem class provides a polygon item that you can add to a QGraphicsScene.

To set the item's polygon, pass a QPolygonF to QGraphicsPolygonItem's constructor, or call the setPolygon() function. The polygon() function returns the current polygon.

QGraphicsPolygonItem uses the polygon and the pen width to provide a reasonable implementation of boundingRect(), shape(), and contains(). The paint() function draws the polygon using the item's associated pen and brush, which you can set by calling the setPen() and setBrush() functions.

Member Function Documentation

QGraphicsPolygonItem::QGraphicsPolygonItem ( QGraphicsItem * parent = 0 )

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

See also QGraphicsScene::addItem().

QGraphicsPolygonItem::QGraphicsPolygonItem ( const QPolygonF & polygon, QGraphicsItem * parent = 0 )

Constructs a QGraphicsPolygonItem with polygon as the default polygon. parent is passed to QAbstractGraphicsShapeItem's constructor.

See also QGraphicsScene::addItem().

Qt::FillRule QGraphicsPolygonItem::fillRule () const

Returns the fill rule of the polygon. The default fill rule is Qt::OddEvenFill.

See also setFillRule(), QPainterPath::fillRule(), and QPainter::drawPolygon().

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

Reimplemented from QGraphicsItem::isObscuredBy().

QPainterPath QGraphicsPolygonItem::opaqueArea () const `[virtual]`

Reimplemented from QGraphicsItem::opaqueArea().

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

Reimplemented from QGraphicsItem::paint().

QPolygonF QGraphicsPolygonItem::polygon () const

Returns the item's polygon, or an empty polygon if no polygon has been set.

See also setPolygon().

void QGraphicsPolygonItem::setFillRule ( Qt::FillRule rule )

Sets the fill rule of the polygon to rule. The default fill rule is Qt::OddEvenFill.

See also fillRule(), QPainterPath::fillRule(), and QPainter::drawPolygon().

void QGraphicsPolygonItem::setPolygon ( const QPolygonF & polygon )

Sets the item's polygon to be the given polygon.

See also polygon().

QPainterPath QGraphicsPolygonItem::shape () const `[virtual]`

Reimplemented from QGraphicsItem::shape().

int QGraphicsPolygonItem::type () const `[virtual]`

Reimplemented from QGraphicsItem::type().

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QGraphicsPolygonItem Class Reference

Public Functions

Reimplemented Public Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

QGraphicsPolygonItem::QGraphicsPolygonItem ( QGraphicsItem * parent = 0 )

QGraphicsPolygonItem::QGraphicsPolygonItem ( const QPolygonF & polygon, QGraphicsItem * parent = 0 )

QGraphicsPolygonItem::~QGraphicsPolygonItem ()

QRectF QGraphicsPolygonItem::boundingRect () const [virtual]

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

Qt::FillRule QGraphicsPolygonItem::fillRule () const

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

QPainterPath QGraphicsPolygonItem::opaqueArea () const [virtual]

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

QPolygonF QGraphicsPolygonItem::polygon () const

void QGraphicsPolygonItem::setFillRule ( Qt::FillRule rule )

void QGraphicsPolygonItem::setPolygon ( const QPolygonF & polygon )

QPainterPath QGraphicsPolygonItem::shape () const [virtual]

int QGraphicsPolygonItem::type () const [virtual]

QRectF QGraphicsPolygonItem::boundingRect () const `[virtual]`

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

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

QPainterPath QGraphicsPolygonItem::opaqueArea () const `[virtual]`

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

QPainterPath QGraphicsPolygonItem::shape () const `[virtual]`

int QGraphicsPolygonItem::type () const `[virtual]`