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/*
* python-qwt. Python wrapper for the Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
* Copyright (C) 2015 Gudjon I. Gudjonsson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
class QwtAbstractLegend : QFrame
{
%TypeHeaderCode
#include <qwt_abstract_legend.h>
%End
public:
explicit QwtAbstractLegend( QWidget *parent = NULL );
virtual ~QwtAbstractLegend();
/*!
Render the legend into a given rectangle.
\param painter Painter
\param rect Bounding rectangle
\param fillBackground When true, fill rect with the widget background
\sa renderLegend() is used by QwtPlotRenderer
*/
virtual void renderLegend( QPainter *painter,
const QRectF &rect, bool fillBackground ) const = 0;
//! \return True, when no plot item is inserted
virtual bool isEmpty() const = 0;
virtual int scrollExtent( Qt::Orientation ) const;
public slots:
/*!
\brief Update the entries for a plot item
\param itemInfo Info about an item
\param data List of legend entry attributes for the item
*/
virtual void updateLegend( const QVariant &itemInfo,
const QList<QwtLegendData> &data ) = 0;
};
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