QwtPlotDict(3)

NAME
QwtPlotDict - A dictionary for plot items.

SYNOPSIS

#include <qwt_plot_dict.h>

Inherited by QwtPlot.

  Public Member Functions

QwtPlotDict ()
virtual ~QwtPlotDict ()
void setAutoDelete (bool)
bool autoDelete () const
const QwtPlotItemList & itemList () const
A QwtPlotItemList of all attached plot items.
QwtPlotItemList itemList (int rtti) const
void detachItems (int rtti=QwtPlotItem::Rtti_PlotItem, bool autoDelete=true)

  Protected Member Functions

void insertItem (QwtPlotItem *)
void removeItem (QwtPlotItem *)

Detailed Description

A dictionary for plot items.

QwtPlotDict organizes plot items in increasing z-order. If autoDelete() is enabled, all attached items will be deleted in the destructor of the dictionary. QwtPlotDict can be used to get access to all QwtPlotItem items - or all items of a specific type - that are currently on the plot.

See also:
    QwtPlotItem::attach(), QwtPlotItem::detach(), QwtPlotItem::z()

Constructor & Destructor Documentation

  QwtPlotDict::QwtPlotDict () [explicit]
Constructor

Auto deletion is enabled.

See also:
    setAutoDelete(), QwtPlotItem::attach()

  QwtPlotDict::~QwtPlotDict () [virtual]
Destructor

If autoDelete() is on, all attached items will be deleted

See also:
    setAutoDelete(), autoDelete(), QwtPlotItem::attach()

Member Function Documentation

  bool QwtPlotDict::autoDelete () const

Returns:
    true if auto deletion is enabled

See also:
    setAutoDelete(), insertItem()

  void QwtPlotDict::detachItems (int rtti = QwtPlotItem::Rtti_PlotItem, bool autoDelete = true)
Detach items from the dictionary

Parameters:
    rtti In case of QwtPlotItem::Rtti_PlotItem detach all items otherwise only those items of the type rtti.
    autoDelete If true, delete all detached items

  void QwtPlotDict::insertItem (QwtPlotItem * item) [protected]
Insert a plot item

Parameters:
    item PlotItem

See also:
    removeItem()

  const QwtPlotItemList & QwtPlotDict::itemList () const

A QwtPlotItemList of all attached plot items. Use caution when iterating these lists, as removing/detaching an item will invalidate the iterator. Instead you can place pointers to objects to be removed in a removal list, and traverse that list later.

Returns:
    List of all attached plot items.

  QwtPlotItemList QwtPlotDict::itemList (int rtti) const

Returns:
    List of all attached plot items of a specific type.

Parameters:
    rtti See QwtPlotItem::RttiValues

See also:
    QwtPlotItem::rtti()

  void QwtPlotDict::removeItem (QwtPlotItem * item) [protected]
Remove a plot item

Parameters:
    item PlotItem

See also:
    insertItem()

  void QwtPlotDict::setAutoDelete (bool autoDelete)
En/Disable Auto deletion

If Auto deletion is on all attached plot items will be deleted in the destructor of QwtPlotDict. The default value is on.

See also:
    autoDelete(), insertItem()

Author

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