This interface class is used to provide classes a QwtScaleDraw and an interface to access that scale.
Definition at line 40 of file qwt_sclif.h.
Public Member Functions | |
QwtScaleIf () | |
virtual | ~QwtScaleIf () |
void | setScale (double vmin, double vmax, int logarithmic=0) |
void | setScale (double vmin, double vmax, double step, int logarithmic=0) |
void | setScale (const QwtScaleDiv &s) |
void | setScaleMaxMajor (int ticks) |
void | setScaleMaxMinor (int ticks) |
void | autoScale () |
int | scaleMaxMinor () const |
int | scaleMaxMajor () const |
void | setScaleDraw (QwtScaleDraw *) |
const QwtScaleDraw * | scaleDraw () const |
Protected Member Functions | |
bool | hasUserScale () |
virtual void | scaleChange ()=0 |
QwtScaleDraw * | scaleDraw () |
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Constructor. Definition at line 13 of file qwt_sclif.cpp. References QwtScaleDraw::setScale(). |
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Destructor. Definition at line 24 of file qwt_sclif.cpp. |
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Advise the widget to control the scale range internally. Autoscaling is on by default.
References scaleChange(). |
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Check for user-defined scale. Definition at line 62 of file qwt_sclif.h. Referenced by QwtSlider::rangeChange(), QwtSlider::scaleChange(), and QwtThermo::setRange(). |
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Notify changed scale.
Implemented in QwtSlider, and QwtThermo.
Referenced by autoScale(), setScale(), setScaleMaxMajor(), and setScaleMaxMinor(). |
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Referenced by QwtThermo::draw(), QwtSlider::draw(), QwtKnob::draw(), QwtSlider::getScrollMode(), QwtSlider::getValue(), QwtSlider::layoutSlider(), QwtThermo::layoutThermo(), QwtThermo::minimumSizeHint(), QwtSlider::minimumSizeHint(), QwtKnob::minimumSizeHint(), QwtKnob::QwtKnob(), QwtSlider::QwtSlider(), QwtSlider::rangeChange(), QwtSlider::scaleChange(), QwtThermo::setRange(), QwtKnob::setTotalAngle(), QwtThermo::sizePolicy(), and QwtSlider::xyPosition(). |
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Referenced by QwtSlider::rangeChange(), QwtSlider::scaleChange(), and QwtThermo::setRange(). |
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Referenced by QwtSlider::rangeChange(), QwtSlider::scaleChange(), and QwtThermo::setRange(). |
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Assign a user-defined scale division
References QwtScaleDiv::majCnt(), QwtScaleDiv::minCnt(), scaleChange(), QwtScaleDraw::scaleDiv(), and QwtScaleDraw::setScale(). |
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Specify a user-defined scale. By default, the widget is supposed to control the range of its scale automatically, but sometimes it is desirable to have a user-defined scale which is not in sync with the widget's range, e.g. if a logarithmic scale is needed (sliders don't support that) or if the scale is required to have a fixed range (say 0...100%), independent of the widget's range.
References scaleChange(), QwtScaleDraw::scaleDiv(), and QwtScaleDraw::setScale(). |
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Specify a user-defined scale. By default, the widget is supposed to control the range of its scale automatically, but sometimes it is desirable to have a user-defined scale which is not in sync with the widget's range, e.g. if a logarithmic scale is needed (sliders don't support that) or if the scale is required to have a fixed range (say 0...100%), independent of the widget's range.
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Set a scale draw sd has to be created with new and will be deleted in QwtScaleIf::~QwtScaleIf or the next call of QwtScaleIf::setScaleDraw. Definition at line 155 of file qwt_sclif.cpp. |
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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.
References QwtScaleDiv::hBound(), QwtScaleDiv::lBound(), QwtScaleDiv::logScale(), scaleChange(), QwtScaleDraw::scaleDiv(), and QwtScaleDraw::setScale(). |
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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.
References QwtScaleDiv::hBound(), QwtScaleDiv::lBound(), QwtScaleDiv::logScale(), scaleChange(), QwtScaleDraw::scaleDiv(), and QwtScaleDraw::setScale(). |