Qwt User's Guide 6.3.0

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qwt_compass.h
1/******************************************************************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10#ifndef QWT_COMPASS_H
11#define QWT_COMPASS_H
12
13#include "qwt_global.h"
14#include "qwt_dial.h"
15#include "qwt_round_scale_draw.h"
16
17 class QwtCompassRose;
18 class QString;
19 template< class Key, class T > class QMap;
20
21
32 class QWT_EXPORT QwtCompassScaleDraw : public QwtRoundScaleDraw
33{
34 public:
35 explicit QwtCompassScaleDraw();
36 explicit QwtCompassScaleDraw( const QMap< double, QString >& map );
37
38 virtual ~QwtCompassScaleDraw();
39
40 void setLabelMap( const QMap< double, QString >& map );
41 QMap< double, QString > labelMap() const;
42
43 virtual QwtText label( double value ) const QWT_OVERRIDE;
44
45 private:
46 class PrivateData;
47 PrivateData* m_data;
48};
49
61 class QWT_EXPORT QwtCompass : public QwtDial
62{
63 Q_OBJECT
64
65 public:
66 explicit QwtCompass( QWidget* parent = NULL );
67 virtual ~QwtCompass();
68
69 void setRose( QwtCompassRose* rose );
70 const QwtCompassRose* rose() const;
71 QwtCompassRose* rose();
72
73 protected:
74 virtual void drawRose( QPainter*, const QPointF& center,
75 double radius, double north, QPalette::ColorGroup ) const;
76
77 virtual void drawScaleContents( QPainter*,
78 const QPointF& center, double radius ) const QWT_OVERRIDE;
79
80 virtual void keyPressEvent( QKeyEvent* ) QWT_OVERRIDE;
81
82 private:
83 class PrivateData;
84 PrivateData* m_data;
85};
86
87#endif
QMap
Definition qwt_compass.h:19
QwtAbstractScaleDraw::label
virtual QwtText label(double) const
Convert a value into its representing label.
Definition qwt_abstract_scale_draw.cpp:375
QwtCompass
A Compass Widget.
Definition qwt_compass.h:62
QwtCompassRose
Abstract base class for a compass rose.
Definition qwt_compass_rose.h:22
QwtCompassScaleDraw
A special scale draw made for QwtCompass.
Definition qwt_compass.h:33
QwtDial
QwtDial class provides a rounded range control.
Definition qwt_dial.h:51
QwtRoundScaleDraw
A class for drawing round scales.
Definition qwt_round_scale_draw.h:32
QwtText
A class representing a text.
Definition qwt_text.h:52