Qwt User's Guide  6.1.3
QwtTradingChartData Class Reference

#include <qwt_series_data.h>

Inheritance diagram for QwtTradingChartData:

Public Member Functions

 QwtTradingChartData (const QVector< QwtOHLCSample > &=QVector< QwtOHLCSample >())
 
virtual QRectF boundingRect () const
 Calculate the bounding rectangle. More...
 
- Public Member Functions inherited from QwtArraySeriesData< QwtOHLCSample >
 QwtArraySeriesData ()
 Constructor.
 
 QwtArraySeriesData (const QVector< QwtOHLCSample > &samples)
 
void setSamples (const QVector< QwtOHLCSample > &samples)
 
const QVector< QwtOHLCSamplesamples () const
 
virtual size_t size () const
 
virtual QwtOHLCSample sample (size_t index) const
 
- Public Member Functions inherited from QwtSeriesData< QwtOHLCSample >
 QwtSeriesData ()
 Constructor.
 
virtual ~QwtSeriesData ()
 Destructor.
 
virtual void setRectOfInterest (const QRectF &rect)
 

Additional Inherited Members

- Protected Attributes inherited from QwtArraySeriesData< QwtOHLCSample >
QVector< QwtOHLCSampled_samples
 Vector of samples.
 
- Protected Attributes inherited from QwtSeriesData< QwtOHLCSample >
QRectF d_boundingRect
 Can be used to cache a calculated bounding rectangle.
 

Detailed Description

Interface for iterating over an array of OHLC samples

Constructor & Destructor Documentation

QwtTradingChartData::QwtTradingChartData ( const QVector< QwtOHLCSample > &  samples = QVector<QwtOHLCSample>())

Constructor

Parameters
samplesSamples

Member Function Documentation

QRectF QwtTradingChartData::boundingRect ( ) const
virtual

Calculate the bounding rectangle.

The bounding rectangle is calculated once by iterating over all points and is stored for all following requests.

Returns
Bounding rectangle

Implements QwtSeriesData< QwtOHLCSample >.