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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* 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
QwtAbstractScale is used to provide classes with a QwtScaleDraw,
and a QwtScaleDiv. The QwtScaleDiv might be set explicitely
or calculated by a QwtScaleEngine.
*/
class QWT_EXPORT QwtAbstractScale
{
public:
QwtAbstractScale();
virtual ~QwtAbstractScale();
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;
void setScaleEngine(QwtScaleEngine *);
const QwtScaleEngine *scaleEngine() const;
QwtScaleEngine *scaleEngine();
const QwtScaleMap &scaleMap() const;
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
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