File indexing completed on 2024-04-21 14:44:04

 /*
     SPDX-FileCopyrightText: 2017 Robert Lancaster <rlancaste@gmail.com>
 
     Based on an idea discussed in the QT Centre: http://www.qtcentre.org/threads/47535-QDoubleSpinBox-with-nonlinear-values
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "auxiliary/nonlineardoublespinbox.h"
 
 NonLinearDoubleSpinBox::NonLinearDoubleSpinBox(QWidget *parent) : QDoubleSpinBox(parent)
 {
     m_Values << 0.01 << 0.02 << 0.05 << 0.1 << 0.2 << 0.25 << 0.5 << 1 << 1.5 << 2 << 2.5 << 3 << 5 << 6 << 7 << 8 << 9 << 10 << 20 << 30 << 40 << 50 << 60 << 120 << 180 << 300 << 600 << 900;
     setRange(m_Values.first() , m_Values.last());
 
     //This will update the _idx variable to the index of the new value.  It will give -1 if not in the list, and the index if it is in the list.
     connect(this, static_cast<void(QDoubleSpinBox::*)(double)>(&QDoubleSpinBox::valueChanged),
             [=](double d){ m_idx = m_Values.indexOf(d); });
 }
 
 void NonLinearDoubleSpinBox::stepBy(int steps)
 {
     // If the current value is not currently in the list, it will find where the value falls in the list and set it to the
     // appropriate one whether going up or down.
     if(m_idx == -1)
     {
         int i = 0;
         while(value() > m_Values.at(i))
             i++;
         if(steps > 0 )
             m_idx = i;
         else
             m_idx = i - 1;
     }
     else
         m_idx += steps;
 
     //This makes sure that it doesn't go past the ends of the list.
     if(m_idx<0)
         m_idx=0;
     else if(m_idx >= m_Values.count())
         m_idx = m_Values.count()-1;
 
     //This sets the value to the value at that index in the list.
     setValue( m_Values.at(m_idx) );
 }
 
 void NonLinearDoubleSpinBox::setRecommendedValues(QList<double> values)
 {
     m_Values = values;
     updateRecommendedValues();
 }
 
 void NonLinearDoubleSpinBox::addRecommendedValue(double v)
 {
     m_Values.append(v);  //This will be sorted into place in the next command.
     updateRecommendedValues();
 }
 
 void NonLinearDoubleSpinBox::updateRecommendedValues()
 {
     std::sort(m_Values.begin(), m_Values.end());  //This will make sure they are all in order.
     m_idx = m_Values.indexOf(value());  //This will update the _idx variable to the index of the new value.  It will search for current value in the new list or set it to negative 1 if it isn't in the list.
     setRange(m_Values.first() , m_Values.last());
     //This makes sure all the values are in the range.  The range is expanded if necessary.
     if(m_Values.first() < minimum())
         setMinimum(m_Values.first());
     if(m_Values.last() > maximum())
         setMaximum(m_Values.last());
 }
 
 QList<double> NonLinearDoubleSpinBox::getRecommendedValues()
 {
     return m_Values;
 }
 
 QString NonLinearDoubleSpinBox::getRecommendedValuesString()
 {
     QString returnString;
     for(int i=0; i < m_Values.size() - 1; i++)
         returnString += QString::number(m_Values.at(i)) + ", ";
     returnString += QString::number(m_Values.last());
     return returnString;
 }