84 lines
2.0 KiB
C
84 lines
2.0 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_COMPASS_H
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#define QWT_COMPASS_H 1
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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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#include <qstring.h>
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#include <qmap.h>
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class QwtCompassRose;
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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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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;
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private:
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QMap<double, QString> d_labelMap;
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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 ¢er,
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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 ¢er, double radius ) const;
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virtual void keyPressEvent( QKeyEvent * );
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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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