88 lines
2.2 KiB
C++
88 lines
2.2 KiB
C++
/******************************************************************************
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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_COMPASS_H
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#define QWT_COMPASS_H
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#include "qwt_global.h"
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#include "qwt_dial.h"
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#include "qwt_round_scale_draw.h"
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class QwtCompassRose;
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class QString;
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template< class Key, class T > class QMap;
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/*!
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\brief A special scale draw made for QwtCompass
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QwtCompassScaleDraw maps values to strings using
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a special map, that can be modified by the application
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The default map consists of the labels N, NE, E, SE, S, SW, W, NW.
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\sa QwtCompass
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*/
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class QWT_EXPORT QwtCompassScaleDraw : public QwtRoundScaleDraw
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{
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public:
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explicit QwtCompassScaleDraw();
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explicit QwtCompassScaleDraw( const QMap< double, QString >& map );
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virtual ~QwtCompassScaleDraw();
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void setLabelMap( const QMap< double, QString >& map );
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QMap< double, QString > labelMap() const;
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virtual QwtText label( double value ) const QWT_OVERRIDE;
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private:
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class PrivateData;
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PrivateData* m_data;
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};
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/*!
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\brief A Compass Widget
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QwtCompass is a widget to display and enter directions. It consists
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of a scale, an optional needle and rose.
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\image html dials1.png
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\note The examples/dials example shows how to use QwtCompass.
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*/
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class QWT_EXPORT QwtCompass : public QwtDial
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{
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Q_OBJECT
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public:
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explicit QwtCompass( QWidget* parent = NULL );
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virtual ~QwtCompass();
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void setRose( QwtCompassRose* rose );
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const QwtCompassRose* rose() const;
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QwtCompassRose* rose();
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protected:
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virtual void drawRose( QPainter*, const QPointF& center,
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double radius, double north, QPalette::ColorGroup ) const;
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virtual void drawScaleContents( QPainter*,
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const QPointF& center, double radius ) const QWT_OVERRIDE;
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virtual void keyPressEvent( QKeyEvent* ) QWT_OVERRIDE;
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private:
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class PrivateData;
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PrivateData* m_data;
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};
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#endif
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