QwtLegend Class Reference

#include <qwt_legend.h>

List of all members.

Public Types
enum	LegendItemMode {   ReadOnlyItem,   ClickableItem,   CheckableItem }
Public Member Functions
void	clear ()
QWidget *	contentsWidget ()
const QWidget *	contentsWidget () const
virtual bool	eventFilter (QObject *, QEvent *)
QWidget *	find (const QwtLegendItemManager *) const
QwtLegendItemManager *	find (const QWidget *) const
virtual int	heightForWidth (int w) const
QScrollBar *	horizontalScrollBar () const
void	insert (const QwtLegendItemManager *, QWidget *)
bool	isEmpty () const
uint	itemCount () const
LegendItemMode	itemMode () const
virtual QList< QWidget * >	legendItems () const
	QwtLegend (QWidget *parent=NULL)
void	remove (const QwtLegendItemManager *)
void	setItemMode (LegendItemMode)
virtual QSize	sizeHint () const
QScrollBar *	verticalScrollBar () const
virtual	~QwtLegend ()
Protected Member Functions
virtual void	layoutContents ()

---

Detailed Description

The legend widget.

The QwtLegend widget is a tabular arrangement of legend items. Legend items might be any type of widget, but in general they will be a QwtLegendItem.

See also:

QwtLegendItem, QwtLegendItemManager QwtPlot

---

Member Enumeration Documentation

enum QwtLegend::LegendItemMode

Interaction mode for the legend items.

The default is QwtLegend::ReadOnlyItem.

See also:

setItemMode(), itemMode(), QwtLegendItem::IdentifierMode QwtLegendItem::clicked(), QwtLegendItem::checked(), QwtPlot::legendClicked(), QwtPlot::legendChecked()

Enumerator:

ReadOnlyItem	The legend item is not interactive, like a label.
ClickableItem	The legend item is clickable, like a push button.
CheckableItem	The legend item is checkable, like a checkable button.

---

Constructor & Destructor Documentation

QwtLegend::QwtLegend

(

QWidget *

parent = NULL

)

[explicit]

Constructor

Parameters:

parent

Parent widget

QwtLegend::~QwtLegend

(

)

[virtual]

Destructor.

---

Member Function Documentation

void QwtLegend::clear

(

)

Remove all items.

QWidget * QwtLegend::contentsWidget

(

)

The contents widget is the only child of the viewport of the internal QScrollArea and the parent widget of all legend items.

Returns:

Container widget of the legend items

const QWidget * QwtLegend::contentsWidget

(

)

const

The contents widget is the only child of the viewport of the internal QScrollArea and the parent widget of all legend items.

Returns:

Container widget of the legend items

bool QwtLegend::eventFilter	(	QObject *	object,
		QEvent *	event
	)		[virtual]

Handle QEvent::ChildRemoved andQEvent::LayoutRequest events for the contentsWidget().

Parameters:

object	Object to be filtered
event	Event

QWidget * QwtLegend::find

(

const QwtLegendItemManager *

plotItem

)

const

Find the widget that represents a plot item

Parameters:

plotItem

Plot item

Returns:

Widget on the legend, or NULL

QwtLegendItemManager * QwtLegend::find

(

const QWidget *

legendItem

)

const

Find the widget that represents a plot item

Parameters:

legendItem

Legend item

Returns:

Widget on the legend, or NULL

int QwtLegend::heightForWidth

(

int

width

)

const [virtual]

Returns:

The preferred height, for the width w.

Parameters:

width

Width

QScrollBar * QwtLegend::horizontalScrollBar

(

)

const

Returns:

Horizontal scrollbar

See also:

verticalScrollBar()

void QwtLegend::insert	(	const QwtLegendItemManager *	plotItem,
		QWidget *	legendItem
	)

Insert a new item for a plot item

Parameters:

plotItem	Plot item
legendItem	New legend item

Note:

The parent of item will be changed to contentsWidget()

bool QwtLegend::isEmpty

(

)

const

Return true, if there are no legend items.

uint QwtLegend::itemCount

(

)

const

Return the number of legend items.

QwtLegend::LegendItemMode QwtLegend::itemMode

(

)

const

See also:

LegendItemMode

void QwtLegend::layoutContents

(

)

[protected, virtual]

Adjust contents widget and item layout to the size of the viewport().

QList< QWidget * > QwtLegend::legendItems

(

)

const [virtual]

Return a list of all legend items.

void QwtLegend::remove

(

const QwtLegendItemManager *

plotItem

)

Find the corresponding item for a plotItem and remove it from the item list.

Parameters:

plotItem

Plot item

void QwtLegend::setItemMode

(

LegendItemMode

mode

)

See also:

LegendItemMode

QSize QwtLegend::sizeHint

(

)

const [virtual]

Return a size hint.

QScrollBar * QwtLegend::verticalScrollBar

(

)

const

Returns:

Vertical scrollbar

See also:

horizontalScrollBar()