QTradingView::LineSeries Class Reference

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

#include <LineSeries.h>

Inheritance diagram for QTradingView::LineSeries:

Public Member Functions
	LineSeries (const QList< DataPoint > &data={})
	Constructs a LineSeries with optional initial data.
	~LineSeries () override
	Destroys the LineSeries object.
void	setData (const QList< DataPoint > &data)
	Sets the data points for the series.
const QList< DataPoint > &	data () const
	Returns the current data points.
qint64	timestampAt (int index) const override
	Returns the timestamp for the data point at the given index.
int	dataCount () const override
	Returns the number of data points in the series.
void	setColor (const QColor &color)
void	setLineWidth (double width)
void	setLineStyle (Qt::PenStyle style)
void	setAntialiasing (bool enabled)
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 line chart series in QTradingView.

LineSeries manages a collection of data points and renders them as a line chart. Supports data updates and style customization.

Constructor & Destructor Documentation

LineSeries()

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

explicit

Constructs a LineSeries with optional initial data.

Parameters

data	List of DataPoint objects.

Member Function Documentation

calculateRange()

void QTradingView::LineSeries::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::LineSeries::data

(

)

const

Returns the current data points.

Returns

List of DataPoint objects.

dataCount()

int QTradingView::LineSeries::dataCount ( ) const

overridevirtual

Returns the number of data points in the series.

Returns

Data point count.

Implements QTradingView::Series.

hitTest()

bool QTradingView::LineSeries::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::LineSeries::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.

setData()

void QTradingView::LineSeries::setData

(

const QList< DataPoint > &

data

)

Sets the data points for the series.

Parameters

data	List of DataPoint objects.

timestampAt()

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

overridevirtual

Returns the timestamp for the data point at the given index.

Parameters

index

Data point 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/LineSeries.h
• src/series/LineSeries.cpp