QAbstractGraphicsShapeItem Class
The QAbstractGraphicsShapeItem class provides a common base for all path items. More...
| Header: | #include <QAbstractGraphicsShapeItem> |
| qmake: | QT += widgets |
| Since: | Qt 4.2 |
| Inherits: | QGraphicsItem |
| Inherited By: | QGraphicsEllipseItem, QGraphicsPathItem, QGraphicsPolygonItem, QGraphicsRectItem, and QGraphicsSimpleTextItem |
This class was introduced in Qt 4.2.
Public Functions
| QAbstractGraphicsShapeItem(QGraphicsItem *parent = nullptr) | |
| virtual | ~QAbstractGraphicsShapeItem() |
| QBrush | brush() const |
| QPen | pen() const |
| void | setBrush(const QBrush &brush) |
| void | setPen(const QPen &pen) |
Reimplemented Public Functions
| virtual bool | isObscuredBy(const QGraphicsItem *item) const override |
| virtual QPainterPath | opaqueArea() const override |
Detailed Description
This class does not fully implement an item by itself; in particular, it does not implement boundingRect() and paint(), which are inherited by QGraphicsItem.
You can subclass this item to provide a simple base implementation of accessors for the item's pen and brush.
See also QGraphicsRectItem, QGraphicsEllipseItem, QGraphicsPathItem, QGraphicsPolygonItem, QGraphicsTextItem, QGraphicsLineItem, QGraphicsPixmapItem, and Graphics View Framework.
Member Function Documentation
QAbstractGraphicsShapeItem::QAbstractGraphicsShapeItem(QGraphicsItem *parent = nullptr)
Constructs a QAbstractGraphicsShapeItem. parent is passed to QGraphicsItem's constructor.
[virtual] QAbstractGraphicsShapeItem::~QAbstractGraphicsShapeItem()
Destroys a QAbstractGraphicsShapeItem.
QBrush QAbstractGraphicsShapeItem::brush() const
Returns the item's brush, or an empty brush if no brush has been set.
See also setBrush().
[override virtual] bool QAbstractGraphicsShapeItem::isObscuredBy(const QGraphicsItem *item) const
Reimplements: QGraphicsItem::isObscuredBy(const QGraphicsItem *item) const.
[override virtual] QPainterPath QAbstractGraphicsShapeItem::opaqueArea() const
Reimplements: QGraphicsItem::opaqueArea() const.
QPen QAbstractGraphicsShapeItem::pen() const
Returns the item's pen. If no pen has been set, this function returns QPen(), a default black solid line pen with 1 width.
See also setPen().
void QAbstractGraphicsShapeItem::setBrush(const QBrush &brush)
Sets the item's brush to brush.
The item's brush is used to fill the item.
If you use a brush with a QGradient, the gradient is relative to the item's coordinate system.
See also brush().
void QAbstractGraphicsShapeItem::setPen(const QPen &pen)
Sets the pen for this item to pen.
The pen is used to draw the item's outline.
See also pen().