67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_PLOT_SERIES_ITEM_H
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#define QWT_PLOT_SERIES_ITEM_H
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#include "qwt_global.h"
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#include "qwt_plot_item.h"
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#include "qwt_scale_div.h"
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#include "qwt_series_data.h"
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#include "qwt_series_store.h"
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/*!
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\brief Base class for plot items representing a series of samples
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*/
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class QWT_EXPORT QwtPlotSeriesItem: public QwtPlotItem,
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public virtual QwtAbstractSeriesStore
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{
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public:
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explicit QwtPlotSeriesItem( const QString &title = QString::null );
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explicit QwtPlotSeriesItem( const QwtText &title );
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virtual ~QwtPlotSeriesItem();
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void setOrientation( Qt::Orientation );
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Qt::Orientation orientation() const;
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virtual void draw( QPainter *p,
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const QwtScaleMap &xMap, const QwtScaleMap &yMap,
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const QRectF & ) const;
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/*!
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Draw a subset of the samples
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\param painter Painter
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\param xMap Maps x-values into pixel coordinates.
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\param yMap Maps y-values into pixel coordinates.
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\param canvasRect Contents rectangle of the canvas
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\param from Index of the first point to be painted
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\param to Index of the last point to be painted. If to < 0 the
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curve will be painted to its last point.
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*/
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virtual void drawSeries( QPainter *painter,
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const QwtScaleMap &xMap, const QwtScaleMap &yMap,
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const QRectF &canvasRect, int from, int to ) const = 0;
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virtual QRectF boundingRect() const;
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virtual void updateScaleDiv(
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const QwtScaleDiv &, const QwtScaleDiv & );
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protected:
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virtual void dataChanged();
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private:
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class PrivateData;
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PrivateData *d_data;
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};
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#endif
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