Inheritance diagram for QwtParasitePlotLayout:

Public Member Functions
virtual void	activate (const QwtPlot *plot, const QRectF &plotRect, Options options=Options()) override
	Recalculate the geometry of all components./根据给定的外框矩形，重新计算并记录 QwtPlot 内所有子部件（标题、页脚、图例、4 条轴、画布）的几何位置。

virtual QSize	minimumSizeHint (const QwtPlot *plot) const override

QRectF	parasiteScaleRect (QwtAxisId aid) const

Public Member Functions inherited from QwtPlotLayout
	QwtPlotLayout ()
	Constructor.

virtual	~QwtPlotLayout ()
	Destructor.

void	setCanvasMargin (int margin, int axis=-1)
	Change a margin of the canvas.

int	canvasMargin (int axisId) const

void	setAlignCanvasToScales (bool)
	Set the align-canvas-to-axis-scales flag for all axes.

void	setAlignCanvasToScale (int axisId, bool)
	Change the align-canvas-to-axis-scales setting.

bool	alignCanvasToScale (int axisId) const
	Return the align-canvas-to-axis-scales setting.

void	setSpacing (int)
	Change the spacing of the plot.

int	spacing () const

void	setLegendPosition (QwtPlot::LegendPosition pos, double ratio)
	Specify the position of the legend.

void	setLegendPosition (QwtPlot::LegendPosition pos)
	Specify the position of the legend.

QwtPlot::LegendPosition	legendPosition () const

void	setLegendRatio (double ratio)
	Specify the relative size of the legend in the plot.

double	legendRatio () const

virtual void	invalidate ()
	Invalidate the geometry of all components.

QRectF	titleRect () const

QRectF	footerRect () const

QRectF	legendRect () const

QRectF	scaleRect (QwtAxisId) const

QRectF	canvasRect () const

Additional Inherited Members
Public Types inherited from QwtPlotLayout
enum	Option { AlignScales = 0x01 , IgnoreScrollbars = 0x02 , IgnoreFrames = 0x04 , IgnoreLegend = 0x08 , IgnoreTitle = 0x10 , IgnoreFooter = 0x20 }
	Options to configure the plot layout engine. More...

Protected Member Functions inherited from QwtPlotLayout
void	setTitleRect (const QRectF &)
	Set the geometry for the title.

void	setFooterRect (const QRectF &)
	Set the geometry for the footer.

void	setLegendRect (const QRectF &)
	Set the geometry for the legend.

void	setScaleRect (QwtAxisId, const QRectF &)
	Set the geometry for an axis.

void	setCanvasRect (const QRectF &)
	Set the geometry for the canvas.

QwtPlotLayoutEngine *	layoutEngine ()

void	doActivate (const QwtPlot *plot, const QRectF &plotRect, Options options=Options())
	QwtPlotLayout::activate的具体实现

Member Function Documentation

◆ activate()

void QwtParasitePlotLayout::activate	(	const QwtPlot *	plot,
		const QRectF &	plotRect,
		Options	options = `Options()`
	)

overridevirtual

Recalculate the geometry of all components./根据给定的外框矩形，重新计算并记录 QwtPlot 内所有子部件（标题、页脚、图例、4 条轴、画布）的几何位置。

Parameters

plot	Plot to be layout/待布局的 plot 对象
plotRect	Rectangle where to place the components/外部可用矩形（逻辑坐标，单位是像素）
options	Layout options/布局选项，例如是否忽略图例、是否忽略某条轴等

结果全部写入 m_data->xxxRect，外部可通过 titleRect()/footerRect()/legendRect()/canvasRect()/scaleRect() 直接读取。

See also: invalidate(), titleRect(), footerRect(), legendRect(), scaleRect(), canvasRect()

Reimplemented from QwtPlotLayout.

◆ minimumSizeHint()

QSize QwtParasitePlotLayout::minimumSizeHint ( const QwtPlot * plot ) const

overridevirtual

Returns: Minimum size hint

Parameters

plot	Plot widget

See also: QwtPlot::minimumSizeHint()

Reimplemented from QwtPlotLayout.

The documentation for this class was generated from the following files:

/home/runner/work/QWT/QWT/src/qwt_parasite_plot_layout.h
/home/runner/work/QWT/QWT/src/qwt_parasite_plot_layout.cpp

Public Member Functions

Additional Inherited Members

Member Function Documentation

◆ activate()

◆ minimumSizeHint()