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QGraphicsRectItem Class Reference
^{[QtGui module]}

The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene. More...

 #include <QGraphicsRectItem>

Inherits QAbstractGraphicsShapeItem.

This class was introduced in Qt 4.2.

• List of all members, including inherited members

Public Functions

• QGraphicsRectItem ( QGraphicsItem * parent = 0, QGraphicsScene * scene = 0 )
• QGraphicsRectItem ( const QRectF & rect, QGraphicsItem * parent = 0, QGraphicsScene * scene = 0 )
• QGraphicsRectItem ( qreal x, qreal y, qreal width, qreal height, QGraphicsItem * parent = 0, QGraphicsScene * scene = 0 )
• ~QGraphicsRectItem ()
• QRectF rect () const
• void setRect ( const QRectF & rectangle )
• void setRect ( qreal x, qreal y, qreal width, qreal height )

• 4 public functions inherited from QAbstractGraphicsShapeItem
• 105 public functions inherited from QGraphicsItem

Additional Inherited Members

• 1 static public member inherited from QGraphicsItem
• 23 protected functions inherited from QGraphicsItem

Detailed Description

The QGraphicsRectItem class provides a rectangle item that you can add to a QGraphicsScene.

To set the item's rectangle, pass a QRectF to QGraphicsRectItem's constructor, or call the setRect() function. The rect() function returns the current rectangle.

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

See also QGraphicsPathItem, QGraphicsEllipseItem, QGraphicsPolygonItem, QGraphicsTextItem, QGraphicsLineItem, QGraphicsPixmapItem, and The Graphics View Framework.

Member Function Documentation

QGraphicsRectItem::QGraphicsRectItem ( QGraphicsItem * parent = 0, QGraphicsScene * scene = 0 )

Constructs a QGraphicsRectItem. The parent and scene parameters are passed to QAbstractGraphicsShapeItem's constructor.

QGraphicsRectItem::QGraphicsRectItem ( const QRectF & rect, QGraphicsItem * parent = 0, QGraphicsScene * scene = 0 )

Constructs a QGraphicsRectItem, using rect as the default rectangle. The parent and scene parameters are passed to QAbstractGraphicsShapeItem's constructor.

QGraphicsRectItem::QGraphicsRectItem ( qreal x, qreal y, qreal width, qreal height, QGraphicsItem * parent = 0, QGraphicsScene * scene = 0 )

Constructs a QGraphicsRectItem with a default rectangle defined by (x, y) and the given width and height.

The parent parameter is passed to QAbstractGraphicsShapeItem's constructor.

QGraphicsRectItem::~QGraphicsRectItem ()

Destroys the QGraphicsRectItem.

QRectF QGraphicsRectItem::rect () const

Returns the item's rectangle.

See also setRect().

void QGraphicsRectItem::setRect ( const QRectF & rectangle )

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

See also rect().

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

This is an overloaded member function, provided for convenience.

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().