Qwt User's Guide 6.3.0
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QwtSeriesStore< T > Class Template Reference

Class storing a QwtSeriesData object. More...

#include <qwt_series_store.h>

Inheritance diagram for QwtSeriesStore< T >:

Public Member Functions

 QwtSeriesStore ()
 Constructor The store contains no series.
 
 ~QwtSeriesStore ()
 Destructor.
 
void setData (QwtSeriesData< T > *series)
 
QwtSeriesData< T > * data ()
 
const QwtSeriesData< T > * data () const
 
sample (int index) const
 
virtual size_t dataSize () const override
 
virtual QRectF dataRect () const override
 
virtual void setRectOfInterest (const QRectF &rect) override
 
QwtSeriesData< T > * swapData (QwtSeriesData< T > *series)
 
- Public Member Functions inherited from QwtAbstractSeriesStore
virtual ~QwtAbstractSeriesStore ()
 Destructor.
 

Additional Inherited Members

- Protected Member Functions inherited from QwtAbstractSeriesStore
virtual void dataChanged ()=0
 dataChanged() indicates, that the series has been changed.
 

Detailed Description

template<typename T>
class QwtSeriesStore< T >

Class storing a QwtSeriesData object.

QwtSeriesStore and QwtPlotSeriesItem are intended as base classes for all plot items iterating over a series of samples. Both classes share a virtual base class ( QwtAbstractSeriesStore ) to bridge between them.

QwtSeriesStore offers the template based part for the plot item API, so that QwtPlotSeriesItem can be derived without any hassle with templates.

Definition at line 66 of file qwt_series_store.h.

Constructor & Destructor Documentation

◆ QwtSeriesStore()

template<typename T >
QwtSeriesStore< T >::QwtSeriesStore ( )
explicit

Constructor The store contains no series.

Definition at line 134 of file qwt_series_store.h.

◆ ~QwtSeriesStore()

template<typename T >
QwtSeriesStore< T >::~QwtSeriesStore ( )

Destructor.

Definition at line 140 of file qwt_series_store.h.

Member Function Documentation

◆ data() [1/2]

template<typename T >
QwtSeriesData< T > * QwtSeriesStore< T >::data ( )
inline
Returns
the the series data

Definition at line 146 of file qwt_series_store.h.

◆ data() [2/2]

template<typename T >
const QwtSeriesData< T > * QwtSeriesStore< T >::data ( ) const
inline
Returns
the the series data

Definition at line 152 of file qwt_series_store.h.

◆ dataRect()

template<typename T >
QRectF QwtSeriesStore< T >::dataRect ( ) const
overridevirtual
Returns
Bounding rectangle of the series or an invalid rectangle, when no series is stored
See also
QwtSeriesData<T>::boundingRect()

Implements QwtAbstractSeriesStore.

Definition at line 184 of file qwt_series_store.h.

◆ dataSize()

template<typename T >
size_t QwtSeriesStore< T >::dataSize ( ) const
overridevirtual
Returns
Number of samples of the series
See also
setData(), QwtSeriesData<T>::size()

Implements QwtAbstractSeriesStore.

Definition at line 175 of file qwt_series_store.h.

◆ sample()

template<typename T >
T QwtSeriesStore< T >::sample ( int index) const
inline
Parameters
indexIndex
Returns
Sample at position index

Definition at line 158 of file qwt_series_store.h.

◆ setData()

template<typename T >
void QwtSeriesStore< T >::setData ( QwtSeriesData< T > * series)

Assign a series of samples

Parameters
seriesData
Warning
The item takes ownership of the data object, deleting it when its not used anymore.

Definition at line 164 of file qwt_series_store.h.

◆ setRectOfInterest()

template<typename T >
void QwtSeriesStore< T >::setRectOfInterest ( const QRectF & rect)
overridevirtual

Set a the "rect of interest" for the series

Parameters
rectRectangle of interest
See also
QwtSeriesData<T>::setRectOfInterest()

Implements QwtAbstractSeriesStore.

Definition at line 193 of file qwt_series_store.h.

◆ swapData()

template<typename T >
QwtSeriesData< T > * QwtSeriesStore< T >::swapData ( QwtSeriesData< T > * series)

Replace a series without deleting the previous one

Parameters
seriesNew series
Returns
Previously assigned series

Definition at line 200 of file qwt_series_store.h.