QwtPlotDict Class Reference

A dictionary for plot items. More...

#include <qwt_plot_dict.h>

Inheritance diagram for QwtPlotDict:

Public Member Functions
	QwtPlotDict ()
virtual	~QwtPlotDict ()
void	setAutoDelete (bool)
bool	autoDelete () const
const QwtPlotItemList &	itemList () const
	A QwtPlotItemList of all attached plot items. More...
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()