QTradingView::BarSeries Class Reference

Represents a bar chart series in QTradingView. More...

#include <BarSeries.h>

Inheritance diagram for QTradingView::BarSeries:

Public Member Functions
	BarSeries (const QList< DataPoint > &data={})
	Constructs a BarSeries with optional initial data.
	~BarSeries () override
	Destroys the BarSeries object.
void	setData (const QList< DataPoint > &data)
	Sets the bar data for the series.
const QList< DataPoint > &	data () const
	Returns the current bar data.
qint64	timestampAt (int index) const override
	Returns the timestamp for the bar at the given index.
int	dataCount () const override
	Returns the number of bars in the series.
void	setUpColor (const QColor &color)
	Sets the color for upward bars.
void	setDownColor (const QColor &color)
	Sets the color for downward bars.
void	setBarWidthRatio (double ratio)
	Sets the width ratio for bars.
void	setLineWidth (double width)
	Sets the line width for the bars.
void	setAntialiasing (bool enabled)
	Enables or disables antialiasing for bar rendering.
void	render (QPainter *painter, const ViewPort &viewport, IScale *scale) override
	Renders the series within the given viewport and scale.
bool	hitTest (const QPointF &point, int &outIndex) const override
	Performs hit testing to find the nearest data point to the given position.
void	calculateRange (int startIndex, int endIndex, double &outMin, double &outMax) const override
	Calculates the data range (min/max values) within the given index range.
Public Member Functions inherited from QTradingView::Series
	Series (SeriesType type)
	Constructs a Series of the given type.
virtual	~Series ()=default
	Virtual destructor for Series.
SeriesType	type () const
	Returns the type of the series.

Additional Inherited Members
Protected Attributes inherited from QTradingView::Series
SeriesType	m_type

Detailed Description

Represents a bar chart series in QTradingView.

BarSeries manages a collection of bar data and renders them as a bar chart. Supports data updates and style customization.

Constructor & Destructor Documentation

BarSeries()

QTradingView::BarSeries::BarSeries ( const QList< DataPoint > &  data = {} )

explicit

Constructs a BarSeries with optional initial data.

Parameters

data	List of DataPoint objects.

Member Function Documentation

calculateRange()

void QTradingView::BarSeries::calculateRange ( int  startIndex, int  endIndex, double &  outMin, double &  outMax  ) const

overridevirtual

Calculates the data range (min/max values) within the given index range.

Parameters

startIndex	Start index of the range.
endIndex	End index of the range.
outMin	Output parameter for the minimum value.
outMax	Output parameter for the maximum value.

Implements QTradingView::Series.

data()

const QList< DataPoint > & QTradingView::BarSeries::data

(

)

const

Returns the current bar data.

Returns

List of DataPoint objects.

dataCount()

int QTradingView::BarSeries::dataCount ( ) const

overridevirtual

Returns the number of bars in the series.

Returns

Bar count.

Implements QTradingView::Series.

hitTest()

bool QTradingView::BarSeries::hitTest ( const QPointF &  point, int &  outIndex  ) const

overridevirtual

Performs hit testing to find the nearest data point to the given position.

Parameters

point	Position to test.
outIndex	Output parameter for the nearest data point index.

Returns

True if a data point was hit, false otherwise.

Implements QTradingView::Series.

render()

void QTradingView::BarSeries::render ( QPainter *  painter, const ViewPort &  viewport, IScale *  scale  )

overridevirtual

Renders the series within the given viewport and scale.

Parameters

painter	QPainter instance for drawing.
viewport	Viewport defining the area to render.
scale	Scale used for rendering.

Implements QTradingView::Series.

setAntialiasing()

void QTradingView::BarSeries::setAntialiasing

(

bool

enabled

)

Enables or disables antialiasing for bar rendering.

Parameters

enabled

Antialiasing flag.

setBarWidthRatio()

void QTradingView::BarSeries::setBarWidthRatio

(

double

ratio

)

Sets the width ratio for bars.

Parameters

ratio

Ratio of bar width to total width.

setData()

void QTradingView::BarSeries::setData

(

const QList< DataPoint > &

data

)

Sets the bar data for the series.

Parameters

data	List of DataPoint objects.

setDownColor()

void QTradingView::BarSeries::setDownColor

(

const QColor &

color

)

Sets the color for downward bars.

Parameters

color

Downward bar color.

setLineWidth()

void QTradingView::BarSeries::setLineWidth

(

double

width

)

Sets the line width for the bars.

Parameters

width

Line width in pixels.

setUpColor()

void QTradingView::BarSeries::setUpColor

(

const QColor &

color

)

Sets the color for upward bars.

Parameters

color

Upward bar color.

timestampAt()

qint64 QTradingView::BarSeries::timestampAt ( int  index ) const

overridevirtual

Returns the timestamp for the bar at the given index.

Parameters

index

Bar index.

Returns

Timestamp in milliseconds.

Implements QTradingView::Series.

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

• include/QTradingView/series/BarSeries.h
• src/series/BarSeries.cpp