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QwtPlotDict(3) Qwt User's Guide QwtPlotDict(3)


QwtPlotDict - A dictionary for plot items.


#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()

Definition at line 32 of file qwt_plot_dict.h.

Constructor & Destructor Documentation

QwtPlotDict::QwtPlotDict () [explicit]


Auto deletion is enabled.

See also

setAutoDelete(), QwtPlotItem::attach()

Definition at line 69 of file qwt_plot_dict.cpp.

QwtPlotDict::~QwtPlotDict () [virtual]


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

See also

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

Definition at line 81 of file qwt_plot_dict.cpp.

Member Function Documentation

bool QwtPlotDict::autoDelete () const


true if auto deletion is enabled

See also

setAutoDelete(), insertItem()

Definition at line 104 of file qwt_plot_dict.cpp.

void QwtPlotDict::detachItems (int rtti = QwtPlotItem::Rtti_PlotItem, bool autoDelete = true)

Detach items from the dictionary


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

Definition at line 138 of file qwt_plot_dict.cpp.

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

Insert a plot item


item PlotItem

See also


Definition at line 115 of file qwt_plot_dict.cpp.

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.


List of all attached plot items.

Definition at line 166 of file qwt_plot_dict.cpp.

QwtPlotItemList QwtPlotDict::itemList (int rtti) const


List of all attached plot items of a specific type.


rtti See QwtPlotItem::RttiValues

See also


Definition at line 176 of file qwt_plot_dict.cpp.

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

Remove a plot item


item PlotItem

See also


Definition at line 126 of file qwt_plot_dict.cpp.

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()

Definition at line 95 of file qwt_plot_dict.cpp.


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