Qwt User's Guide 5.2.3

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qwt_abstract_scale.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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_ABSTRACT_SCALE_H
11 #define QWT_ABSTRACT_SCALE_H
12
13 #include "qwt_global.h"
14
15 class QwtScaleEngine;
16 class QwtAbstractScaleDraw;
17 class QwtScaleDiv;
18 class QwtScaleMap;
19 class QwtDoubleInterval;
20
29 class QWT_EXPORT QwtAbstractScale
30 {
31 public:
32 QwtAbstractScale();
33 virtual ~QwtAbstractScale();
34
35 void setScale(double vmin, double vmax, double step = 0.0);
36 void setScale(const QwtDoubleInterval &, double step = 0.0);
37 void setScale(const QwtScaleDiv &s);
38
39 void setAutoScale();
40 bool autoScale() const;
41
42 void setScaleMaxMajor( int ticks);
43 int scaleMaxMinor() const;
44
45 void setScaleMaxMinor( int ticks);
46 int scaleMaxMajor() const;
47
48 void setScaleEngine(QwtScaleEngine *);
49 const QwtScaleEngine *scaleEngine() const;
50 QwtScaleEngine *scaleEngine();
51
52 const QwtScaleMap &scaleMap() const;
53
54 protected:
55 void rescale(double vmin, double vmax, double step = 0.0);
56
57 void setAbstractScaleDraw(QwtAbstractScaleDraw *);
58 const QwtAbstractScaleDraw *abstractScaleDraw() const;
59 QwtAbstractScaleDraw *abstractScaleDraw();
60
61 virtual void scaleChange();
62
63 private:
64 void updateScaleDraw();
65
66 class PrivateData;
67 PrivateData *d_data;
68 };
69
70 #endif