Skip to content
qwt_abstract_scale.h 1.78 KiB
Newer Older
pixhawk's avatar
pixhawk committed
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
 * Qwt Widget Library
 * Copyright (C) 1997   Josef Wilgen
 * Copyright (C) 2002   Uwe Rathmann
pixhawk's avatar
pixhawk committed
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/

#ifndef QWT_ABSTRACT_SCALE_H
#define QWT_ABSTRACT_SCALE_H

#include "qwt_global.h"

class QwtScaleEngine;
class QwtAbstractScaleDraw;
class QwtScaleDiv;
class QwtScaleMap;
class QwtDoubleInterval;

/*!
  \brief An abstract base class for classes containing a scale
pixhawk's avatar
pixhawk committed

  QwtAbstractScale is used to provide classes with a QwtScaleDraw,
  and a QwtScaleDiv. The QwtScaleDiv might be set explicitely
pixhawk's avatar
pixhawk committed
  or calculated by a QwtScaleEngine.
*/

class QWT_EXPORT QwtAbstractScale
{
public:
    QwtAbstractScale();
    virtual ~QwtAbstractScale();
pixhawk's avatar
pixhawk committed
    void setScale(double vmin, double vmax, double step = 0.0);
    void setScale(const QwtDoubleInterval &, double step = 0.0);
    void setScale(const QwtScaleDiv &s);

    void setAutoScale();
    bool autoScale() const;

    void setScaleMaxMajor( int ticks);
    int scaleMaxMinor() const;

    void setScaleMaxMinor( int ticks);
    int scaleMaxMajor() const;
pixhawk's avatar
pixhawk committed

    void setScaleEngine(QwtScaleEngine *);
    const QwtScaleEngine *scaleEngine() const;
    QwtScaleEngine *scaleEngine();

    const QwtScaleMap &scaleMap() const;
pixhawk's avatar
pixhawk committed
protected:
    void rescale(double vmin, double vmax, double step = 0.0);

    void setAbstractScaleDraw(QwtAbstractScaleDraw *);
    const QwtAbstractScaleDraw *abstractScaleDraw() const;
    QwtAbstractScaleDraw *abstractScaleDraw();

    virtual void scaleChange();

private:
    void updateScaleDraw();

    class PrivateData;
    PrivateData *d_data;
};

#endif