QwtPlotDict类 参考

A dictionary for plot items 更多...

#include <qwt_plot_dict.h>

类 QwtPlotDict 继承关系图:

类
class	PrivateData

Public 成员函数
	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 成员函数
void	insertItem (QwtPlotItem *)
	Insert an item into the dictionary
void	removeItem (QwtPlotItem *)
	Remove an item from the dictionary

详细描述

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.

参见

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

构造及析构函数说明

QwtPlotDict()

QwtPlotDict::QwtPlotDict ( )

explicit

Constructor

Auto deletion is enabled.

参见

setAutoDelete(), QwtPlotItem::attach()

Destructor

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

参见

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

成员函数说明

autoDelete()

bool QwtPlotDict::autoDelete

(

)

const

Check if auto deletion is enabled

返回

True if auto deletion is enabled

参见

setAutoDelete(), insertItem()

detachItems()

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

Detach items from the dictionary

参数

[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

参数

item

PlotItem

参见

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.

返回

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

参数

[in]

rtti

See QwtPlotItem::RttiValues

返回

List of all attached plot items of a specific type

参见

QwtPlotItem::rtti()

removeItem()

void QwtPlotDict::removeItem ( QwtPlotItem *  item )

protected

Remove an item from the dictionary

Remove a plot item

参数

item

PlotItem

参见

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.

参数

[in]

autoDelete

True to enable auto deletion

参见

autoDelete(), insertItem()

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该类的文档由以下文件生成:

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