QwtPlotGraphicItem Class Reference

A plot item, which displays a recorded sequence of QPainter commands. More...

#include <qwt_plot_graphicitem.h>

Inheritance diagram for QwtPlotGraphicItem:

Classes
class	PrivateData

Public Member Functions
	QwtPlotGraphicItem (const QString &title=QString())
	Constructor .
	QwtPlotGraphicItem (const QwtText &title)
	Constructor with QwtText title .
virtual	~QwtPlotGraphicItem ()
	Destructor .
void	setGraphic (const QRectF &rect, const QwtGraphic &)
	Set graphic with its bounding rectangle .
QwtGraphic	graphic () const
	Get graphic .
virtual QRectF	boundingRect () const override
	Get the bounding rectangle .
virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
	Draw the graphic .
virtual int	rtti () const override
	Get the runtime type information .
Public Member Functions inherited from QwtPlotItem
	QwtPlotItem ()
	Default constructor.
	QwtPlotItem (const QString &title)
	Constructor with title as QString.
	QwtPlotItem (const QwtText &title)
	Constructor with title as QwtText.
virtual	~QwtPlotItem ()
	Destructor.
void	attach (QwtPlot *plot)
	Attach the item to a plot.
void	detach ()
	Detach the item from the plot.
QwtPlot *	plot () const
	Get the plot the item is attached to.
void	setTitle (const QString &title)
	Set the title using a QString.
void	setTitle (const QwtText &title)
	Set the title using a QwtText.
const QwtText &	title () const
	Get the title.
void	setItemAttribute (ItemAttribute, bool on=true)
	Set an item attribute.
bool	testItemAttribute (ItemAttribute) const
	Test an item attribute.
void	setItemInterest (ItemInterest, bool on=true)
	Set an item interest.
bool	testItemInterest (ItemInterest) const
	Test an item interest.
void	setRenderHint (RenderHint, bool on=true)
	Set a render hint.
bool	testRenderHint (RenderHint) const
	Test a render hint.
void	setRenderThreadCount (uint numThreads)
	Set the number of render threads.
uint	renderThreadCount () const
	Get the number of render threads.
void	setLegendIconSize (const QSize &)
	Set the legend icon size.
QSize	legendIconSize () const
	Get the legend icon size.
double	z () const
	Get the z-value.
void	setZ (double z)
	Set the z-value.
void	show ()
	Show the item.
void	hide ()
	Hide the item.
virtual void	setVisible (bool)
	Set the visibility.
bool	isVisible () const
	Check if the item is visible.
void	setAxes (QwtAxisId xAxis, QwtAxisId yAxis)
	Set both axes.
void	setXAxis (QwtAxisId)
	Set the x-axis.
QwtAxisId	xAxis () const
	Get the x-axis.
void	setYAxis (QwtAxisId)
	Set the y-axis.
QwtAxisId	yAxis () const
	Get the y-axis.
virtual void	itemChanged ()
	Notify the plot that the item has changed.
virtual void	legendChanged ()
	Notify the item that the legend has changed.
virtual void	getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const
	Get margin hints for the canvas.
virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
	Update the item with new scale divisions.
virtual void	updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
	Update the item with changes of the legend.
QRectF	scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the scale rectangle.
QRectF	paintRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the paint rectangle.
virtual QList< QwtLegendData >	legendData () const
	Return legend data.
virtual QwtGraphic	legendIcon (int index, const QSizeF &) const
	Return a legend icon.

Additional Inherited Members
Public Types inherited from QwtPlotItem
enum	RttiValues {   Rtti_PlotItem = 0 , Rtti_PlotGrid , Rtti_PlotScale , Rtti_PlotLegend ,   Rtti_PlotMarker , Rtti_PlotCurve , Rtti_PlotSpectroCurve , Rtti_PlotIntervalCurve ,   Rtti_PlotHistogram , Rtti_PlotSpectrogram , Rtti_PlotGraphic , Rtti_PlotTradingCurve ,   Rtti_PlotBarChart , Rtti_PlotMultiBarChart , Rtti_PlotShape , Rtti_PlotTextLabel ,   Rtti_PlotZone , Rtti_PlotVectorField , Rtti_PlotArrowMarker , Rtti_PlotBoxChart ,   Rtti_PlotUserItem = 1000 }
	Runtime type information. More...
enum	ItemAttribute { Legend = 0x01 , AutoScale = 0x02 , Margins = 0x04 }
	Plot Item Attributes. More...
enum	ItemInterest { ScaleInterest = 0x01 , LegendInterest = 0x02 }
	Plot Item Interests. More...
enum	RenderHint { RenderAntialiased = 0x1 }
	Render hints . More...
Protected Member Functions inherited from QwtPlotItem
QwtGraphic	defaultIcon (const QBrush &, const QSizeF &) const
	Create a default icon.

Detailed Description

A plot item, which displays a recorded sequence of QPainter commands.

Constructor & Destructor Documentation

QwtPlotGraphicItem() [1/2]

QwtPlotGraphicItem::QwtPlotGraphicItem ( const QString &  title = QString() )

explicit

Constructor .

Constructor.

QwtPlotGraphicItem() [2/2]

QwtPlotGraphicItem::QwtPlotGraphicItem ( const QwtText &  title )

explicit

Constructor with QwtText title .

Constructor.

~QwtPlotGraphicItem()

QwtPlotGraphicItem::~QwtPlotGraphicItem ( )

virtual

Destructor .

Destructor

.

Member Function Documentation

boundingRect()

QRectF QwtPlotGraphicItem::boundingRect ( ) const

overridevirtual

Get the bounding rectangle .

Get the bounding rectangle of the item.

Reimplemented from QwtPlotItem.

draw()

void QwtPlotGraphicItem::draw ( QPainter *  painter, const QwtScaleMap &  xMap, const QwtScaleMap &  yMap, const QRectF &  canvasRect  ) const

overridevirtual

Draw the graphic .

Draw the item.

Implements QwtPlotItem.

graphic()

QwtGraphic QwtPlotGraphicItem::graphic

(

)

const

Get graphic .

Get the recorded sequence of painter commands.

rtti()

int QwtPlotGraphicItem::rtti ( ) const

overridevirtual

Get the runtime type information .

Get the runtime type information.

Reimplemented from QwtPlotItem.

setGraphic()

void QwtPlotGraphicItem::setGraphic	(	const QRectF &	rect,
		const QwtGraphic &	graphic
	)

Set graphic with its bounding rectangle .

Set the graphic to be displayed.

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

• /home/runner/work/QWT/QWT/src/plot/qwt_plot_graphicitem.h
• /home/runner/work/QWT/QWT/src/plot/qwt_plot_graphicitem.cpp