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

QwtPlotDict - A dictionary for plot items.

#include <qwt_plot_dict.h>

Inherited by QwtPlot.


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)


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

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

Auto deletion is enabled.

See also

setAutoDelete(), QwtPlotItem::attach()

Definition at line 69 of file qwt_plot_dict.cpp.

Destructor

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.

Returns

true if auto deletion is enabled

See also

setAutoDelete(), insertItem()

Definition at line 104 of file qwt_plot_dict.cpp.

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

Definition at line 138 of file qwt_plot_dict.cpp.

Insert a plot item

Parameters

item PlotItem

See also

removeItem()

Definition at line 115 of file qwt_plot_dict.cpp.

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.

Definition at line 166 of file qwt_plot_dict.cpp.

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()

Definition at line 176 of file qwt_plot_dict.cpp.

Remove a plot item

Parameters

item PlotItem

See also

insertItem()

Definition at line 126 of file qwt_plot_dict.cpp.

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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Sun Jul 18 2021 Version 6.2.0