QwtPlotDict Class Reference

A dictionary for plot items. More...

#include <qwt_plot_dict.h>

Inheritance diagram for QwtPlotDict:

Collaboration diagram for QwtPlotDict:

List of all members.

Classes
class	PrivateData
Public Member Functions
	QwtPlotDict ()
	~QwtPlotDict ()
void	setAutoDelete (bool)
bool	autoDelete () const
const QwtPlotItemList &	itemList () const
	A QwtPlotItemList of all attached plot items.
void	detachItems (int rtti=QwtPlotItem::Rtti_PlotItem, bool autoDelete=true)
Friends
class	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.

See also:

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

Definition at line 42 of file qwt_plot_dict.h.

---

Constructor & Destructor Documentation

QwtPlotDict::QwtPlotDict

(

)

[explicit]

Constructor

Auto deletion is enabled.

See also:

setAutoDelete(), attachItem()

Definition at line 94 of file qwt_plot_dict.cpp.

References QwtPlotDict::PrivateData::autoDelete.

{
    d_data = new QwtPlotDict::PrivateData;
    d_data->autoDelete = true;
}

QwtPlotDict::~QwtPlotDict

(

)

Destructor

If autoDelete is on, all attached items will be deleted

See also:

setAutoDelete(), autoDelete(), attachItem()

Definition at line 106 of file qwt_plot_dict.cpp.

References QwtPlotDict::PrivateData::autoDelete, detachItems(), and QwtPlotItem::Rtti_PlotItem.

{
    detachItems(QwtPlotItem::Rtti_PlotItem, d_data->autoDelete);
    delete d_data;
}

---

Member Function Documentation

bool QwtPlotDict::autoDelete

(

)

const

Returns:

true if auto deletion is enabled

See also:

setAutoDelete(), attachItem()

Definition at line 129 of file qwt_plot_dict.cpp.

References QwtPlotDict::PrivateData::autoDelete.

Referenced by setAutoDelete(), and QwtPlot::~QwtPlot().

{
    return d_data->autoDelete;
}

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

Definition at line 161 of file qwt_plot_dict.cpp.

References QwtPlotItem::attach(), QwtPlotDict::PrivateData::itemList, QwtPlotItem::rtti(), and QwtPlotItem::Rtti_PlotItem.

Referenced by QwtPlot::clear(), QwtPlot::~QwtPlot(), and ~QwtPlotDict().

{
    PrivateData::ItemList list = d_data->itemList;
    QwtPlotItemIterator it = list.begin();
    while ( it != list.end() )
    {
        QwtPlotItem *item = *it;

        ++it; // increment before removing item from the list

        if ( rtti == QwtPlotItem::Rtti_PlotItem || item->rtti() == rtti )
        {
            item->attach(NULL);
            if ( autoDelete )
                delete item;
        }
    }
}

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.

Definition at line 186 of file qwt_plot_dict.cpp.

References QwtPlotDict::PrivateData::itemList.

Referenced by QwtPlotPrintFilter::apply(), QwtPlot::drawItems(), QwtPlot::insertLegend(), QwtPlotPrintFilter::reset(), and QwtPlot::updateAxes().

{
    return d_data->itemList;
}

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(), attachItem()

Definition at line 120 of file qwt_plot_dict.cpp.

References autoDelete(), and QwtPlotDict::PrivateData::autoDelete.

{
    d_data->autoDelete = autoDelete;
}

---

Friends And Related Function Documentation

friend class QwtPlotItem [friend]

Definition at line 57 of file qwt_plot_dict.h.

---

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

• qwt_plot_dict.h
• qwt_plot_dict.cpp