QwtLegendItemManager Class Reference

Abstract API to bind plot items to the legend. More...

#include <qwt_legend_itemmanager.h>

Inheritance diagram for QwtLegendItemManager:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 QwtLegendItemManager ()
virtual ~QwtLegendItemManager ()
virtual void updateLegend (QwtLegend *legend) const =0
virtual QWidget * legendItem () const =0
virtual void drawLegendIdentifier (QPainter *, const QRectF &) const

Detailed Description

Abstract API to bind plot items to the legend.


Constructor & Destructor Documentation

QwtLegendItemManager::QwtLegendItemManager (  )  [inline]

Constructor.

virtual QwtLegendItemManager::~QwtLegendItemManager (  )  [inline, virtual]

Destructor.


Member Function Documentation

virtual void QwtLegendItemManager::drawLegendIdentifier ( QPainter *  ,
const QRectF &   
) const [inline, virtual]

QwtLegendItem can display an icon-identifier followed by a text. The icon helps to identify a plot item on the plot canvas and depends on the type of information, that is displayed.

The default implementation paints nothing.

Reimplemented in QwtPlotCurve, QwtPlotHistogram, and QwtPlotIntervalCurve.

virtual QWidget* QwtLegendItemManager::legendItem (  )  const [pure virtual]

Allocate the widget that represents the item on the legend

Returns:
Allocated widget
See also:
updateLegend() QwtLegend()

Implemented in QwtPlotItem.

virtual void QwtLegendItemManager::updateLegend ( QwtLegend legend  )  const [pure virtual]

Update the widget that represents the item on the legend

Parameters:
legend Legend
See also:
legendItem()

Implemented in QwtPlotCurve, and QwtPlotItem.

Generated on Sun Nov 21 12:01:36 2010 for Qwt User's Guide by  doxygen 1.6.3