File indexing completed on 2024-05-12 17:12:39

 #include <QDebug>
 
 #include "realslider.h"
 
 RealSlider::RealSlider(QWidget* parent) : QSlider(parent), m_start(0.0), m_end(1.0), m_step(0.01)
 {
     updateRange();
     connect(this, &RealSlider::sliderMoved, this, &RealSlider::internalValueChanged);
 }
 
 qreal RealSlider::start() const
 {
     return m_start;
 }
 
 void RealSlider::setStart(const qreal& start)
 {
     m_start= start;
     updateRange();
 }
 
 qreal RealSlider::end() const
 {
     return m_end;
 }
 
 void RealSlider::setEnd(const qreal& end)
 {
     m_end= end;
     updateRange();
 }
 
 qreal RealSlider::step() const
 {
     return m_step;
 }
 
 void RealSlider::setStep(const qreal& step)
 {
     m_step= step;
     updateRange();
 }
 
 void RealSlider::updateRange()
 {
     qreal val= m_end - m_start;
     qreal num= val / m_step;
 
     setMaximum(num);
     setMinimum(0);
     setSingleStep(1);
 }
 
 void RealSlider::setRealValue(qreal v)
 {
     setValue(v * maximum());
 }
 
 void RealSlider::internalValueChanged(int x)
 {
     if(0 != maximum())
     {
         qreal y= static_cast<qreal>(x) / static_cast<qreal>(maximum());
         emit valueChanged(y);
     }
 }