[89] | 1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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| 2 | * Qwt Widget Library
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| 3 | * Copyright (C) 1997 Josef Wilgen
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| 4 | * Copyright (C) 2002 Uwe Rathmann
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the Qwt License, Version 1.0
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| 8 | *****************************************************************************/
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| 9 |
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| 10 | #ifndef QWT_ABSTRACT_SCALE_H
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| 11 | #define QWT_ABSTRACT_SCALE_H
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| 12 |
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| 13 | #include "qwt_global.h"
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| 14 |
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| 15 | class QwtScaleEngine;
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| 16 | class QwtAbstractScaleDraw;
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| 17 | class QwtScaleDiv;
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| 18 | class QwtScaleMap;
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| 19 | class QwtDoubleInterval;
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| 20 |
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| 21 | /*!
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| 22 | \brief An abstract base class for classes containing a scale
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| 23 |
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| 24 | QwtAbstractScale is used to provide classes with a QwtScaleDraw,
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| 25 | and a QwtScaleDiv. The QwtScaleDiv might be set explicitely
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| 26 | or calculated by a QwtScaleEngine.
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| 27 | */
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| 28 |
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| 29 | class QWT_EXPORT QwtAbstractScale
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| 30 | {
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| 31 | public:
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| 32 | QwtAbstractScale();
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| 33 | virtual ~QwtAbstractScale();
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| 34 |
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| 35 | void setScale(double vmin, double vmax, double step = 0.0);
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| 36 | void setScale(const QwtDoubleInterval &, double step = 0.0);
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| 37 | void setScale(const QwtScaleDiv &s);
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| 38 |
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| 39 | void setAutoScale();
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| 40 | bool autoScale() const;
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| 41 |
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| 42 | void setScaleMaxMajor( int ticks);
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| 43 | int scaleMaxMinor() const;
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| 44 |
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| 45 | void setScaleMaxMinor( int ticks);
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| 46 | int scaleMaxMajor() const;
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| 47 |
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| 48 | void setScaleEngine(QwtScaleEngine *);
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| 49 | const QwtScaleEngine *scaleEngine() const;
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| 50 | QwtScaleEngine *scaleEngine();
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| 51 |
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| 52 | const QwtScaleMap &scaleMap() const;
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| 53 |
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| 54 | protected:
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| 55 | void rescale(double vmin, double vmax, double step = 0.0);
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| 56 |
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| 57 | void setAbstractScaleDraw(QwtAbstractScaleDraw *);
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| 58 | const QwtAbstractScaleDraw *abstractScaleDraw() const;
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| 59 | QwtAbstractScaleDraw *abstractScaleDraw();
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| 60 |
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| 61 | virtual void scaleChange();
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| 62 |
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| 63 | private:
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| 64 | void updateScaleDraw();
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| 65 |
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| 66 | class PrivateData;
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| 67 | PrivateData *d_data;
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| 68 | };
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| 69 |
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| 70 | #endif
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