QPieSlice Class

成员函数

QPieSlice::QPieSlice(QObject *parent = Q_NULLPTR)

Constructs an empty slice with the parent parent.

参见 QPieSeries::append() and QPieSeries::insert().

QPieSlice::QPieSlice(QString label, qreal value, QObject *parent = Q_NULLPTR)

Constructs an empty slice with the specified value, label, and parent.

参见 QPieSeries::append() and QPieSeries::insert().

[virtual] QPieSlice::~QPieSlice()

Removes the slice. The slice should not be removed if it has been added to a series.

[signal] void QPieSlice::angleSpanChanged()

This signal is emitted when the angle span of the slice changes.

Note: Notifier signal for property angleSpan.

参见 angleSpan.

[signal] void QPieSlice::borderColorChanged()

This signal is emitted when the slice border color changes.

Note: Notifier signal for property borderColor.

参见 pen and borderColor.

[signal] void QPieSlice::borderWidthChanged()

This signal is emitted when the slice border width changes.

Note: Notifier signal for property borderWidth.

参见 pen and borderWidth.

[signal] void QPieSlice::brushChanged()

This signal is emitted when the brush used to fill the slice changes.

Note: Notifier signal for property brush.

参见 brush.

[signal] void QPieSlice::clicked()

This signal is emitted when the slice is clicked.

参见 QPieSeries::clicked().

[signal] void QPieSlice::colorChanged()

This signal is emitted when the slice color changes.

Note: Notifier signal for property color.

参见 brush.

[signal] void QPieSlice::doubleClicked()

This signal is emitted when user double-clicks the slice.

参见 QPieSeries::doubleClicked().

[signal] void QPieSlice::hovered(bool state)

This signal is emitted when a mouse is hovered over the slice. When the mouse moves over the slice, state turns true, and when the mouse moves away again, it turns false.

参见 QPieSeries::hovered().

[signal] void QPieSlice::labelBrushChanged()

This signal is emitted when the label brush of the slice changes.

Note: Notifier signal for property labelBrush.

参见 labelBrush.

[signal] void QPieSlice::labelChanged()

This signal is emitted when the slice label changes.

Note: Notifier signal for property label.

参见 label.

[signal] void QPieSlice::labelColorChanged()

This signal is emitted when the slice label color changes.

Note: Notifier signal for property labelColor.

参见 labelColor.

[signal] void QPieSlice::labelFontChanged()

This signal is emitted when the label font of the slice changes.

Note: Notifier signal for property labelFont.

参见 labelFont.

[signal] void QPieSlice::labelVisibleChanged()

This signal is emitted when the visibility of the slice label changes.

Note: Notifier signal for property labelVisible.

参见 labelVisible.

[signal] void QPieSlice::penChanged()

This signal is emitted when the pen used to draw the slice border changes.

Note: Notifier signal for property pen.

参见 pen.

[signal] void QPieSlice::percentageChanged()

This signal is emitted when the percentage of the slice changes.

Note: Notifier signal for property percentage.

参见 percentage.

[signal] void QPieSlice::pressed()

This signal is emitted when the user clicks the slice and holds down the mouse button.

参见 QPieSeries::pressed().

[signal] void QPieSlice::released()

This signal is emitted when the user releases the mouse press on the slice.

参见 QPieSeries::released().

QPieSeries *QPieSlice::series() const

Returns the series that this slice belongs to.

参见 QPieSeries::append().

[signal] void QPieSlice::startAngleChanged()

This signal is emitted when the starting angle of the slice changes.

Note: Notifier signal for property startAngle.

参见 startAngle.

[signal] void QPieSlice::valueChanged()

This signal is emitted when the slice value changes.

Note: Notifier signal for property value.

参见 value.