A class which draws a coordinate grid. More...

#include <qwt_plot_grid.h>

Inheritance diagram for QwtPlotGrid:

Classes
class	PrivateData

Public Member Functions
	QwtPlotGrid ()
	Constructor.

virtual	~QwtPlotGrid ()
	Destructor .

virtual int	rtti () const override
	Get the runtime type information.

void	enableX (bool)
	Enable or disable vertical grid lines.

bool	xEnabled () const
	Check if vertical grid lines are enabled.

void	enableY (bool)
	Enable or disable horizontal grid lines.

bool	yEnabled () const
	Check if horizontal grid lines are enabled.

void	enableXMin (bool)
	Enable or disable minor vertical grid lines.

bool	xMinEnabled () const
	Check if minor vertical grid lines are enabled.

void	enableYMin (bool)
	Enable or disable minor horizontal grid lines.

bool	yMinEnabled () const
	Check if minor horizontal grid lines are enabled.

void	setXDiv (const QwtScaleDiv &)
	Assign an x axis scale division.

const QwtScaleDiv &	xScaleDiv () const
	Get the scale division of the x axis.

void	setYDiv (const QwtScaleDiv &)
	Assign a y axis scale division.

const QwtScaleDiv &	yScaleDiv () const
	Get the scale division of the y axis.

void	setPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
	Build and assign a pen for both major and minor grid lines.

void	setPen (const QPen &)
	Assign a pen for both major and minor grid lines.

void	setMajorPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
	Build and assign a pen for major grid lines.

void	setMajorPen (const QPen &)
	Assign a pen for the major grid lines.

const QPen &	majorPen () const
	Get the pen for the major grid lines.

void	setMinorPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
	Build and assign a pen for the minor grid lines.

void	setMinorPen (const QPen &)
	Assign a pen for the minor grid lines.

const QPen &	minorPen () const
	Get the pen for the minor grid lines.

virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
	Draw the grid.

virtual void	updateScaleDiv (const QwtScaleDiv &xScaleDiv, const QwtScaleDiv &yScaleDiv) override
	Update the grid to changes of the axes scale division.

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 QRectF	boundingRect () const
	Get the bounding rectangle.

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	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 class which draws a coordinate grid.

Constructor & Destructor Documentation

◆ QwtPlotGrid()

QwtPlotGrid::QwtPlotGrid ( )

explicit

Constructor.

◆ ~QwtPlotGrid()

QwtPlotGrid::~QwtPlotGrid ( )

virtual

Destructor .

Member Function Documentation

◆ draw()

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

overridevirtual

Draw the grid.

Implements QwtPlotItem.

◆ enableX()

void QwtPlotGrid::enableX ( bool on )

Enable or disable vertical grid lines.

◆ enableXMin()

void QwtPlotGrid::enableXMin ( bool on )

Enable or disable minor vertical grid lines.

◆ enableY()

void QwtPlotGrid::enableY ( bool on )

Enable or disable horizontal grid lines.

◆ enableYMin()

void QwtPlotGrid::enableYMin ( bool on )

Enable or disable minor horizontal grid lines.

◆ majorPen()

const QPen & QwtPlotGrid::majorPen ( ) const

Get the pen for the major grid lines.

◆ minorPen()

const QPen & QwtPlotGrid::minorPen ( ) const

Get the pen for the minor grid lines.

◆ rtti()

int QwtPlotGrid::rtti ( ) const

overridevirtual

Get the runtime type information.

Reimplemented from QwtPlotItem.

◆ setMajorPen() [1/2]

void QwtPlotGrid::setMajorPen	(	const QColor &	color,
		qreal	width = `0.0`,
		Qt::PenStyle	style = `Qt::SolidLine`
	)

Build and assign a pen for major grid lines.

◆ setMajorPen() [2/2]

void QwtPlotGrid::setMajorPen ( const QPen & pen )

Assign a pen for the major grid lines.

◆ setMinorPen() [1/2]

void QwtPlotGrid::setMinorPen	(	const QColor &	color,
		qreal	width = `0.0`,
		Qt::PenStyle	style = `Qt::SolidLine`
	)

Build and assign a pen for the minor grid lines.

◆ setMinorPen() [2/2]

void QwtPlotGrid::setMinorPen ( const QPen & pen )

Assign a pen for the minor grid lines.

◆ setPen() [1/2]

void QwtPlotGrid::setPen	(	const QColor &	color,
		qreal	width = `0.0`,
		Qt::PenStyle	style = `Qt::SolidLine`
	)

Build and assign a pen for both major and minor grid lines.

◆ setPen() [2/2]

void QwtPlotGrid::setPen ( const QPen & pen )

Assign a pen for both major and minor grid lines.

◆ setXDiv()

void QwtPlotGrid::setXDiv ( const QwtScaleDiv & scaleDiv )

Assign an x axis scale division.

◆ setYDiv()

void QwtPlotGrid::setYDiv ( const QwtScaleDiv & scaleDiv )

Assign a y axis scale division.

◆ updateScaleDiv()

void QwtPlotGrid::updateScaleDiv	(	const QwtScaleDiv &	xScaleDiv,
		const QwtScaleDiv &	yScaleDiv
	)

overridevirtual

Update the grid to changes of the axes scale division.

Reimplemented from QwtPlotItem.

◆ xEnabled()

bool QwtPlotGrid::xEnabled ( ) const

Check if vertical grid lines are enabled.

◆ xMinEnabled()

bool QwtPlotGrid::xMinEnabled ( ) const

Check if minor vertical grid lines are enabled.

◆ xScaleDiv()

const QwtScaleDiv & QwtPlotGrid::xScaleDiv ( ) const

Get the scale division of the x axis.

◆ yEnabled()

bool QwtPlotGrid::yEnabled ( ) const

Check if horizontal grid lines are enabled.

◆ yMinEnabled()

bool QwtPlotGrid::yMinEnabled ( ) const

Check if minor horizontal grid lines are enabled.

◆ yScaleDiv()

const QwtScaleDiv & QwtPlotGrid::yScaleDiv ( ) const

Get the scale division of the y axis.

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

/home/runner/work/QWT/QWT/src/plot/qwt_plot_grid.h
/home/runner/work/QWT/QWT/src/plot/qwt_plot_grid.cpp

Classes

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QwtPlotGrid()

◆ ~QwtPlotGrid()

Member Function Documentation

◆ draw()

◆ enableX()

◆ enableXMin()

◆ enableY()

◆ enableYMin()

◆ majorPen()

◆ minorPen()

◆ rtti()

◆ setMajorPen() [1/2]

◆ setMajorPen() [2/2]

◆ setMinorPen() [1/2]

◆ setMinorPen() [2/2]

◆ setPen() [1/2]

◆ setPen() [2/2]

◆ setXDiv()

◆ setYDiv()

◆ updateScaleDiv()

◆ xEnabled()

◆ xMinEnabled()

◆ xScaleDiv()

◆ yEnabled()

◆ yMinEnabled()

◆ yScaleDiv()