Public Member Functions¶

QwtAbstractScale ()
virtual ~QwtAbstractScale ()
bool autoScale () const
const QwtScaleEngine * scaleEngine () const
QwtScaleEngine * scaleEngine ()
const QwtScaleMap & scaleMap () const
int scaleMaxMajor () const
int scaleMaxMinor () const
void setAutoScale ()
void setScale (double vmin, double vmax, double step=0.0)
void setScale (const QwtDoubleInterval &, double step=0.0)
void setScale (const QwtScaleDiv &s)
void setScaleEngine (QwtScaleEngine *)
void setScaleMaxMajor (int ticks)
void setScaleMaxMinor (int ticks)

Protected Member Functions¶

const QwtAbstractScaleDraw * abstractScaleDraw () const
QwtAbstractScaleDraw * abstractScaleDraw ()
void rescale (double vmin, double vmax, double step=0.0)
virtual void scaleChange ()
void setAbstractScaleDraw (QwtAbstractScaleDraw *)

QwtAbstractScale::QwtAbstractScale ()¶

Constructor

Creates a default QwtScaleDraw and a QwtLinearScaleEngine. Autoscaling is enabled, and the stepSize is initialized by 0.0.

const QwtAbstractScaleDraw * QwtAbstractScale::abstractScaleDraw () const [protected]¶

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QwtAbstractScaleDraw * QwtAbstractScale::abstractScaleDraw () [protected]¶

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bool QwtAbstractScale::autoScale () const¶

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void QwtAbstractScale::rescale (doublevmin, doublevmax, doublestepSize = 0.0) [protected]¶

Recalculate the scale division and update the scale draw.

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void QwtAbstractScale::scaleChange () [protected], [virtual]¶

Notify changed scale. Dummy empty implementation, intended to be overloaded by derived classes

Reimplemented in QwtThermo, and QwtSlider.

const QwtScaleEngine * QwtAbstractScale::scaleEngine () const¶

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QwtScaleEngine * QwtAbstractScale::scaleEngine ()¶

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const QwtScaleMap & QwtAbstractScale::scaleMap () const¶

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int QwtAbstractScale::scaleMaxMajor () const¶

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int QwtAbstractScale::scaleMaxMinor () const¶

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void QwtAbstractScale::setAbstractScaleDraw (QwtAbstractScaleDraw *scaleDraw) [protected]¶

Set a scale draw. scaleDraw has to be created with new and will be deleted in ~QwtAbstractScale or the next call of setAbstractScaleDraw.

void QwtAbstractScale::setAutoScale ()¶

Advise the widget to control the scale range internally. Autoscaling is on by default.

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void QwtAbstractScale::setScale (doublevmin, doublevmax, doublestepSize = 0.0)¶

Specify a scale. Disable autoscaling and define a scale by an interval and a step size

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void QwtAbstractScale::setScale (const QwtDoubleInterval &interval, doublestepSize = 0.0)¶

Specify a scale. Disable autoscaling and define a scale by an interval and a step size

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void QwtAbstractScale::setScale (const QwtScaleDiv &scaleDiv)¶

Specify a scale. Disable autoscaling and define a scale by a scale division

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void QwtAbstractScale::setScaleEngine (QwtScaleEngine *scaleEngine)¶

Set a scale engine. The scale engine is responsible for calculating the scale division, and in case of auto scaling how to align the scale.

scaleEngine has to be created with new and will be deleted in ~QwtAbstractScale or the next call of setScaleEngine.

void QwtAbstractScale::setScaleMaxMajor (intticks)¶

Set the maximum number of major tick intervals. The scale's major ticks are calculated automatically such that the number of major intervals does not exceed ticks. The default value is 5.

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void QwtAbstractScale::setScaleMaxMinor (intticks)¶

Set the maximum number of minor tick intervals. The scale's minor ticks are calculated automatically such that the number of minor intervals does not exceed ticks. The default value is 3.

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