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.
| QGraphicsRectItem ( QGraphicsItem * parent = 0 ) | |
| QGraphicsRectItem ( const QRectF & rect, QGraphicsItem * parent = 0 ) | |
| QGraphicsRectItem ( qreal x, qreal y, qreal width, qreal height, QGraphicsItem * parent = 0 ) | |
| ~QGraphicsRectItem () | |
| QRectF | rect () const |
| void | setRect ( const QRectF & rectangle ) |
| void | setRect ( qreal x, qreal y, qreal width, qreal height ) |
| 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 |
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.
Note: The rendering of invalid rectangles, such as those with negative widths or heights, is undefined. If you cannot be sure that you are using valid rectangles (for example, if you are creating rectangles using data from an unreliable source) then you should use QRectF::normalized() to create normalized rectangles, and use those instead.
See also QGraphicsPathItem, QGraphicsEllipseItem, QGraphicsPolygonItem, QGraphicsTextItem, QGraphicsLineItem, QGraphicsPixmapItem, and Graphics View Framework.
Constructs a QGraphicsRectItem. parent is passed to QAbstractGraphicsShapeItem's constructor.
See also QGraphicsScene::addItem().
Constructs a QGraphicsRectItem, using rect as the default rectangle. parent is passed to QAbstractGraphicsShapeItem's constructor.
See also QGraphicsScene::addItem().
Constructs a QGraphicsRectItem with a default rectangle defined by (x, y) and the given width and height.
parent is passed to QAbstractGraphicsShapeItem's constructor.
See also QGraphicsScene::addItem().
Destroys the QGraphicsRectItem.
Reimplemented from QGraphicsItem::boundingRect().
Reimplemented from QGraphicsItem::contains().
Reimplemented from QGraphicsItem::isObscuredBy().
Reimplemented from QGraphicsItem::opaqueArea().
Reimplemented from QGraphicsItem::paint().
Returns the item's rectangle.
See also setRect().
Sets the item's rectangle to be the given rectangle.
See also rect().
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().
Reimplemented from QGraphicsItem::shape().
Reimplemented from QGraphicsItem::type().