Qwt User's Guide 6.1.5

Public Member Functions | List of all members
QwtSeriesStore< T > Class Template Reference

Class storing a QwtSeriesData object. More...

`#include <qwt_series_store.h>`

Inheritance diagram for QwtSeriesStore< T >:
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## 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
T | sample (int index) const
virtual size_t | dataSize () const
virtual QRectF | dataRect () const
virtual void | setRectOfInterest (const QRectF &rect)
QwtSeriesData< T > * | swapData (QwtSeriesData< T > *series)

## Additional Inherited Members

Protected Member Functions inherited from QwtAbstractSeriesStore
virtual | ~QwtAbstractSeriesStore ()
| Destructor.
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.

## Member Function Documentation

## ◆ data() [1/2]

template<typename T >

QwtSeriesData< T > * QwtSeriesStore< T >::data | ( |  | ) |

inline

Returns
  the the series data

## ◆ data() [2/2]

template<typename T >

const QwtSeriesData< T > * QwtSeriesStore< T >::data | ( |  | ) | const

inline

Returns
  the the series data

## ◆ dataRect()

template<typename T >

QRectF QwtSeriesStore< T >::dataRect | ( |  | ) | const

virtual

Returns
  Bounding rectangle of the series or an invalid rectangle, when no series is stored

See also
  QwtSeriesData<T>::boundingRect()

Implements QwtAbstractSeriesStore.

## ◆ dataSize()

template<typename T >

size_t QwtSeriesStore< T >::dataSize | ( |  | ) | const

virtual

Returns
  Number of samples of the series

See also
  setData(), QwtSeriesData<T>::size()

Implements QwtAbstractSeriesStore.

## ◆ sample()

template<typename T >

T QwtSeriesStore< T >::sample | ( | int | index | ) | const

inline

Parameters

  index | Index

Returns
  Sample at position index

## ◆ setData()

template<typename T>

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

Assign a series of samples

Parameters

  series | Data

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

## ◆ setRectOfInterest()

template<typename T >

void QwtSeriesStore< T >::setRectOfInterest | ( | const QRectF & | rect | ) |

virtual

Set a the "rect of interest" for the series

Parameters

  rect | Rectangle of interest

See also
  QwtSeriesData<T>::setRectOfInterest()

Implements QwtAbstractSeriesStore.

## ◆ swapData()

template<typename T>

QwtSeriesData< T > * QwtSeriesStore< T >::swapData | ( | QwtSeriesData< T > * | series | ) |

Replace a series without deleting the previous one

Parameters

  series | New series

Returns
  Previously assigned series