NAME¶

QwtLegend -

SYNOPSIS¶

#include <qwt_legend.h>

Public Types¶

enum LegendDisplayPolicy { NoIdentifier = 0, FixedIdentifier = 1, AutoIdentifier = 2 } enum LegendItemMode { ReadOnlyItem, ClickableItem, CheckableItem }

Public Member Functions¶

QwtLegend (QWidget *parent=NULL) virtual ~QwtLegend () void clear () QWidget * contentsWidget () const QWidget * contentsWidget () const LegendDisplayPolicy displayPolicy () 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 int identifierMode () const void insert (const QwtLegendItemManager *, QWidget *) bool isEmpty () const uint itemCount () const LegendItemMode itemMode () const virtual QList< QWidget * > legendItems () const void remove (const QwtLegendItemManager *) void setDisplayPolicy (LegendDisplayPolicy policy, int mode) void setItemMode (LegendItemMode) virtual QSize sizeHint () const QScrollBar * verticalScrollBar () const

Protected Member Functions¶

virtual void layoutContents () virtual void resizeEvent (QResizeEvent *)

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:

Member Enumeration Documentation¶

enum QwtLegend::LegendDisplayPolicy¶

Display policy. .IP "•" 2 NoIdentifier
The client code is responsible how to display of each legend item. The Qwt library will not interfere.

•

FixedIdentifier

 

All legend items are displayed with the QwtLegendItem::IdentifierMode to be passed in 'mode'.

•

AutoIdentifier

 

Each legend item is displayed with a mode that is a bitwise or of

•

QwtLegendItem::ShowLine (if its curve is drawn with a line) and

•

QwtLegendItem::ShowSymbol (if its curve is drawn with symbols) and

•

QwtLegendItem::ShowText (if the has a title).

Default is AutoIdentifier. See also:

enum QwtLegend::LegendItemMode¶

Interaction mode for the legend items. .IP "•" 2 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

Default is ReadOnlyItem. See also:

Constructor & Destructor Documentation¶

QwtLegend::QwtLegend (QWidget *parent = NULL) [explicit]¶

Constructor Parameters:

Member Function Documentation¶

QWidget * QwtLegend::contentsWidget ()¶

The contents widget is the only child of the viewport() and the parent widget of all legend items.

const QWidget * QwtLegend::contentsWidget () const¶

The contents widget is the only child of the viewport() and the parent widget of all legend items.

QwtLegend::LegendDisplayPolicy QwtLegend::displayPolicy () const¶

Returns: See also:

bool QwtLegend::eventFilter (QObject *o, QEvent *e) [virtual]¶

Filter layout related events of QwtLegend::contentsWidget(). Parameters:

QWidget * QwtLegend::find (const QwtLegendItemManager *plotItem) const¶

Find the widget that represents a plot item Parameters: Returns:

QwtLegendItemManager * QwtLegend::find (const QWidget *legendItem) const¶

Find the widget that represents a plot item Parameters: Returns:

int QwtLegend::heightForWidth (intwidth) const [virtual]¶

Returns: Parameters:

QScrollBar * QwtLegend::horizontalScrollBar () const¶

Returns: See also:

int QwtLegend::identifierMode () const¶

Returns: Default is ShowLine | ShowSymbol | ShowText.

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

Insert a new item for a plot item Parameters: Note:

QwtLegend::LegendItemMode QwtLegend::itemMode () const¶

See also:

void QwtLegend::layoutContents () [protected], [virtual]¶

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

void QwtLegend::remove (const QwtLegendItemManager *plotItem)¶

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

void QwtLegend::resizeEvent (QResizeEvent *e) [protected], [virtual]¶

Resize event Parameters:

void QwtLegend::setDisplayPolicy ( LegendDisplayPolicypolicy, intmode)¶

Set the legend display policy to: Parameters: See also:

void QwtLegend::setItemMode ( LegendItemModemode)¶

See also:

QScrollBar * QwtLegend::verticalScrollBar () const¶

Returns: See also:

Author¶

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