conflicting packages
QwtAbstractScale(3) | Qwt User's Guide | QwtAbstractScale(3) |
NAME¶
QwtAbstractScale - An abstract base class for classes containing a scale.SYNOPSIS¶
#include <qwt_abstract_scale.h> Inherited by QwtKnob, QwtSlider, and QwtThermo.Public Member Functions¶
bool autoScale () const
Protected Member Functions¶
const QwtAbstractScaleDraw * abstractScaleDraw () const
Detailed Description¶
An abstract base class for classes containing a scale.Constructor & Destructor Documentation¶
QwtAbstractScale::QwtAbstractScale () Constructor¶
Creates a default QwtScaleDraw and a QwtLinearScaleEngine. Autoscaling is enabled, and the stepSize is initialized by 0.0.QwtAbstractScale::~QwtAbstractScale () [virtual]¶
Destructor.Member Function Documentation¶
const QwtAbstractScaleDraw * QwtAbstractScale::abstractScaleDraw () const [protected] Returns:¶
Scale draw
See also:
setAbstractScaleDraw()
QwtAbstractScaleDraw * QwtAbstractScale::abstractScaleDraw () [protected] Returns:¶
Scale draw
See also:
setAbstractScaleDraw()
bool QwtAbstractScale::autoScale () const Returns:¶
true if autoscaling is enabled
void QwtAbstractScale::rescale (doublevmin, doublevmax, doublestepSize = 0.0) [protected] Recalculate the scale division and update the scale draw.¶
Parameters:vmin Lower limit of the scale interval
vmax Upper limit of the scale interval
stepSize Major step size
See also:
scaleChange()
void QwtAbstractScale::scaleChange () [protected, virtual]¶
Notify changed scale. Dummy empty implementation, intended to be overloaded by derived classes Reimplemented in QwtSlider, and QwtThermo.const QwtScaleEngine * QwtAbstractScale::scaleEngine () const Returns:¶
Scale engine
See also:
setScaleEngine()
QwtScaleEngine * QwtAbstractScale::scaleEngine () Returns:¶
Scale engine
See also:
setScaleEngine()
const QwtScaleMap & QwtAbstractScale::scaleMap () const Returns:¶
abstractScaleDraw()->scaleMap()
int QwtAbstractScale::scaleMaxMajor () const Returns:¶
Max. number of major tick intervals The
default value is 5.
int QwtAbstractScale::scaleMaxMinor () const Returns:¶
Max. number of minor tick intervals The
default value is 3.
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. See also:setScale(), autoScale()
void QwtAbstractScale::setScale (doublevmin, doublevmax, doublestepSize = 0.0)¶
Specify a scale. Disable autoscaling and define a scale by an interval and a step size Parameters:vmin lower limit of the scale interval
vmax upper limit of the scale interval
stepSize major step size
See also:
setAutoScale()
void QwtAbstractScale::setScale (const QwtScaleDiv &scaleDiv)¶
Specify a scale. Disable autoscaling and define a scale by a scale division Parameters:scaleDiv Scale division
See also:
setAutoScale()
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 Parameters:interval Interval
stepSize major step size
See also:
setAutoScale()
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. Parameters:ticks maximal number of major
ticks.
See also:
QwtAbstractScaleDraw
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. Parameters:ticks
See also:
QwtAbstractScaleDraw
Author¶
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