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 *)

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:

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

Constructor

Parameters:

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: