QwtPlotDict Class Reference

A dictionary for plot items. More...

#include <qwt_plot_dict.h>

Inheritance diagram for QwtPlotDict:

Classes
class	PrivateData

Public Member Functions
	QwtPlotDict ()
	Constructor.
void	setAutoDelete (bool)
	Enable/disable auto deletion.
bool	autoDelete () const
	Check if auto deletion is enabled.
const QwtPlotItemList &	itemList () const
	Get the list of all attached plot items.
QwtPlotItemList	itemList (int rtti) const
	Get the list of all attached plot items of a specific type.
void	detachItems (int rtti=QwtPlotItem::Rtti_PlotItem, bool autoDelete=true)
	Detach items from the dictionary.

Protected Member Functions
void	insertItem (QwtPlotItem *)
	Insert an item into the dictionary.
void	removeItem (QwtPlotItem *)
	Remove an item from the dictionary.

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::QwtPlotDict ( )

explicit

Constructor.

Auto deletion is enabled.

See also

setAutoDelete(), QwtPlotItem::attach()

Destructor

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

See also

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

Member Function Documentation

autoDelete()

bool QwtPlotDict::autoDelete

(

)

const

Check if auto deletion is enabled.

Returns

True if auto deletion is enabled

See also

setAutoDelete(), insertItem()

detachItems()

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

Detach items from the dictionary.

Parameters

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

insertItem()

void QwtPlotDict::insertItem ( QwtPlotItem *  item )

protected

Insert an item into the dictionary.

Insert a plot item.

Parameters

item

PlotItem

See also

removeItem()

itemList() [1/2]

const QwtPlotItemList & QwtPlotDict::itemList

(

)

const

Get the list 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

itemList() [2/2]

QwtPlotItemList QwtPlotDict::itemList

(

int

rtti

)

const

Get the list of all attached plot items of a specific type.

Parameters

[in]

rtti

See QwtPlotItem::RttiValues

Returns

List of all attached plot items of a specific type

See also

QwtPlotItem::rtti()

removeItem()

void QwtPlotDict::removeItem ( QwtPlotItem *  item )

protected

Remove an item from the dictionary.

Remove a plot item.

Parameters

item

PlotItem

See also

insertItem()

setAutoDelete()

void QwtPlotDict::setAutoDelete

(

bool

autoDelete

)

Enable/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.

Parameters

[in]

autoDelete

True to enable auto deletion

See also

autoDelete(), insertItem()

---

The documentation for this class was generated from the following files:

• /home/runner/work/QWT/QWT/src/plot/qwt_plot_dict.h
• /home/runner/work/QWT/QWT/src/plot/qwt_plot_dict.cpp