88 lines
2.2 KiB
C
88 lines
2.2 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_INTERVAL_SYMBOL_H
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#define QWT_INTERVAL_SYMBOL_H
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#include "qwt_global.h"
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#include <qpen.h>
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#include <qsize.h>
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class QPainter;
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class QRect;
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class QPointF;
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/*!
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\brief A drawing primitive for displaying an interval like an error bar
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\sa QwtPlotIntervalCurve
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*/
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class QWT_EXPORT QwtIntervalSymbol
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{
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public:
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//! Symbol style
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enum Style
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{
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//! No Style. The symbol cannot be drawn.
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NoSymbol = -1,
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/*!
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The symbol displays a line with caps at the beginning/end.
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The size of the caps depends on the symbol width().
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*/
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Bar,
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/*!
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The symbol displays a plain rectangle using pen() and brush().
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The size of the rectangle depends on the translated interval and
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the width(),
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*/
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Box,
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/*!
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Styles >= UserSymbol are reserved for derived
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classes of QwtIntervalSymbol that overload draw() with
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additional application specific symbol types.
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*/
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UserSymbol = 1000
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};
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public:
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QwtIntervalSymbol( Style = NoSymbol );
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QwtIntervalSymbol( const QwtIntervalSymbol & );
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virtual ~QwtIntervalSymbol();
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QwtIntervalSymbol &operator=( const QwtIntervalSymbol & );
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bool operator==( const QwtIntervalSymbol & ) const;
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bool operator!=( const QwtIntervalSymbol & ) const;
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void setWidth( int );
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int width() const;
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void setBrush( const QBrush& b );
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const QBrush& brush() const;
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void setPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
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void setPen( const QPen & );
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const QPen& pen() const;
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void setStyle( Style );
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Style style() const;
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virtual void draw( QPainter *, Qt::Orientation,
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const QPointF& from, const QPointF& to ) const;
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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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