QGraphicsPolygonItem Class▲
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Header: QGraphicsPolygonItem
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Widgets)
target_link_libraries(mytarget PRIVATE Qt6::Widgets)
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qmake: QT += widgets
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Inherits: QAbstractGraphicsShapeItem
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Group: QGraphicsPolygonItem is part of graphicsview-api
Detailed Description▲
To set the item's polygon, pass a QPolygonF to QGraphicsPolygonItem's constructor, or call the setPolygon() function. The polygon() function returns the current polygon.
QGraphicsPolygonItem uses the polygon and the pen width to provide a reasonable implementation of boundingRect(), shape(), and contains(). The paint() function draws the polygon using the item's associated pen and brush, which you can set by calling the setPen() and setBrush() functions.
See Also▲
Member Type Documentation▲
enum QGraphicsPolygonItem::anonymous▲
The value returned by the virtual type() function.
|
Constant |
Value |
Description |
|---|---|---|
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QGraphicsPolygonItem::Type |
5 |
A graphics polygon item |
Member Function Documentation▲
[explicit] QGraphicsPolygonItem::QGraphicsPolygonItem(QGraphicsItem *parent = nullptr)▲
Constructs a QGraphicsPolygonItem. parent is passed to QAbstractGraphicsShapeItem's constructor.
See Also▲
See also QGraphicsScene::addItem()
[explicit] QGraphicsPolygonItem::QGraphicsPolygonItem(const QPolygonF &polygon, QGraphicsItem *parent = nullptr)▲
Constructs a QGraphicsPolygonItem with polygon as the default polygon. parent is passed to QAbstractGraphicsShapeItem's constructor.
See Also▲
See also QGraphicsScene::addItem()
[virtual] QGraphicsPolygonItem::~QGraphicsPolygonItem()▲
Destroys the QGraphicsPolygonItem.
[override virtual] QRectF QGraphicsPolygonItem::boundingRect() const▲
Reimplements: QGraphicsItem::boundingRect() const.
[override virtual] bool QGraphicsPolygonItem::contains(const QPointF &point) const▲
Reimplements: QGraphicsItem::contains(const QPointF &point) const.
Qt::FillRule QGraphicsPolygonItem::fillRule() const▲
Returns the fill rule of the polygon. The default fill rule is Qt::OddEvenFill.
See Also▲
See also setFillRule(), QPainterPath::fillRule(), QPainter::drawPolygon()
[override virtual] bool QGraphicsPolygonItem::isObscuredBy(const QGraphicsItem *item) const▲
[override virtual] QPainterPath QGraphicsPolygonItem::opaqueArea() const▲
Reimplements: QAbstractGraphicsShapeItem::opaqueArea() const.
[override virtual] void QGraphicsPolygonItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr)▲
Reimplements: QGraphicsItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget).
QPolygonF QGraphicsPolygonItem::polygon() const▲
Returns the item's polygon, or an empty polygon if no polygon has been set.
See Also▲
See also setPolygon()
void QGraphicsPolygonItem::setFillRule(Qt::FillRule rule)▲
Sets the fill rule of the polygon to rule. The default fill rule is Qt::OddEvenFill.
See Also▲
See also fillRule(), QPainterPath::fillRule(), QPainter::drawPolygon()
void QGraphicsPolygonItem::setPolygon(const QPolygonF &polygon)▲
[override virtual] QPainterPath QGraphicsPolygonItem::shape() const▲
Reimplements: QGraphicsItem::shape() const.
[override virtual] int QGraphicsPolygonItem::type() const▲
Reimplements: QGraphicsItem::type() const.