QGraphicsPathItem Class
The QGraphicsPathItem class provides a path item that you can add to a QGraphicsScene. 更多...
| 头文件: | #include <QGraphicsPathItem> |
| qmake: | QT += widgets |
| 开始支持版本: | Qt 4.2 |
| 基类: | QAbstractGraphicsShapeItem |
公有函数
| QGraphicsPathItem(QGraphicsItem *parent = Q_NULLPTR) | |
| QGraphicsPathItem(const QPainterPath &path, QGraphicsItem *parent = Q_NULLPTR) | |
| ~QGraphicsPathItem() | |
| QPainterPath | path() const |
| void | setPath(const QPainterPath &path) |
重新实现的公有函数
| 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 = Q_NULLPTR) |
| virtual QPainterPath | shape() const |
| virtual int | type() const |
- 6 个公有函数继承自 QAbstractGraphicsShapeItem
- 176 个公有函数继承自 QGraphicsItem
其他继承的成员
- 2 个静态公有成员继承自 QGraphicsItem
- 24 个受保护的函数继承自 QGraphicsItem
详细描述
The QGraphicsPathItem class provides a path item that you can add to a QGraphicsScene.
To set the item's path, pass a QPainterPath to QGraphicsPathItem's constructor, or call the setPath() function. The path() function returns the current path.
QGraphicsPathItem uses the path to provide a reasonable implementation of boundingRect(), shape(), and contains(). The paint() function draws the path using the item's associated pen and brush, which you can set by calling the setPen() and setBrush() functions.
参见 QGraphicsRectItem, QGraphicsEllipseItem, QGraphicsPolygonItem, QGraphicsTextItem, QGraphicsLineItem, QGraphicsPixmapItem, and Graphics View Framework.
成员函数
QGraphicsPathItem::QGraphicsPathItem(QGraphicsItem *parent = Q_NULLPTR)
Constructs a QGraphicsPath. parent is passed to QAbstractGraphicsShapeItem's constructor.
参见 QGraphicsScene::addItem().
QGraphicsPathItem::QGraphicsPathItem(const QPainterPath &path, QGraphicsItem *parent = Q_NULLPTR)
Constructs a QGraphicsPath item using path as the default path. parent is passed to QAbstractGraphicsShapeItem's constructor.
参见 QGraphicsScene::addItem().
QGraphicsPathItem::~QGraphicsPathItem()
Destroys the QGraphicsPathItem.
[virtual] QRectF QGraphicsPathItem::boundingRect() const
重新实现 QGraphicsItem::boundingRect().
[virtual] bool QGraphicsPathItem::contains(const QPointF &point) const
重新实现 QGraphicsItem::contains().
[virtual] bool QGraphicsPathItem::isObscuredBy(const QGraphicsItem *item) const
重新实现 QGraphicsItem::isObscuredBy().
[virtual] QPainterPath QGraphicsPathItem::opaqueArea() const
重新实现 QGraphicsItem::opaqueArea().
[virtual] void QGraphicsPathItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = Q_NULLPTR)
重新实现 QGraphicsItem::paint().
QPainterPath QGraphicsPathItem::path() const
Returns the item's path as a QPainterPath. If no item has been set, an empty QPainterPath is returned.
参见 setPath().
void QGraphicsPathItem::setPath(const QPainterPath &path)
Sets the item's path to be the given path.
参见 path().
[virtual] QPainterPath QGraphicsPathItem::shape() const
重新实现 QGraphicsItem::shape().
[virtual] int QGraphicsPathItem::type() const
重新实现 QGraphicsItem::type().