QAbstractGraphicsShapeItem Class | Qt Widgets 5.12.8

- Qt 5.12
- Qt Widgets
- C++ Classes
- QAbstractGraphicsShapeItem
- Qt 5.12.8 Reference Documentation

# 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

- List of all members, including inherited members
- Obsolete members

## 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

- 176 public functions inherited from QGraphicsItem

### Additional Inherited Members

- 24 protected functions inherited from QGraphicsItem

## Detailed Description

The QAbstractGraphicsShapeItem class provides a common base for all path items.

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

Reimplemented from QGraphicsItem::isObscuredBy().

### `[override virtual]` QPainterPath QAbstractGraphicsShapeItem::opaqueArea() const

Reimplemented from QGraphicsItem::opaqueArea().

### 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().