Element Class
(QPainterPath::Element)The QPainterPath::Element class specifies the position and type of a subpath. 更多...
| 头文件: | #include <Element> |
| qmake: | QT += gui |
公有函数
| bool | isCurveTo() const |
| bool | isLineTo() const |
| bool | isMoveTo() const |
| operator QPointF() const | |
| bool | operator!=(const Element &other) const |
| bool | operator==(const Element &other) const |
公有变量
详细描述
The QPainterPath::Element class specifies the position and type of a subpath.
Once a QPainterPath object is constructed, subpaths like lines and curves can be added to the path (creating QPainterPath::LineToElement and QPainterPath::CurveToElement components).
The lines and curves stretch from the currentPosition() to the position passed as argument. The currentPosition() of the QPainterPath object is always the end position of the last subpath that was added (or the initial start point). The moveTo() function can be used to move the currentPosition() without adding a line or curve, creating a QPainterPath::MoveToElement component.
参见 QPainterPath.
成员函数
bool Element::isCurveTo() const
Returns true if the element is a curve, otherwise returns false.
参见 type and QPainterPath::CurveToElement.
bool Element::isLineTo() const
Returns true if the element is a line, otherwise returns false.
参见 type and QPainterPath::LineToElement.
bool Element::isMoveTo() const
Returns true if the element is moving the current position, otherwise returns false.
参见 type and QPainterPath::MoveToElement.
Element::operator QPointF() const
Returns the element's position.
bool Element::operator!=(const Element &other) const
Returns true if this element is not equal to other; otherwise returns false.
This function was introduced in Qt 4.2.
参见 operator==().
bool Element::operator==(const Element &other) const
Returns true if this element is equal to other; otherwise returns false.
This function was introduced in Qt 4.2.
参见 operator!=().
成员变量
ElementType Element::type
This variable holds the type of element
参见 isCurveTo(), isLineTo(), and isMoveTo().
qreal Element::x
This variable holds the x coordinate of the element's position.
参见 operator QPointF().
qreal Element::y
This variable holds the y coordinate of the element's position.
参见 operator QPointF().