File indexing completed on 2024-04-21 15:02:56

 /*
  * This file is part of KQuickCharts
  * SPDX-FileCopyrightText: 2019 Arjen Hiemstra <ahiemstra@heimr.nl>
  *
  * SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
  */
 
 #include "RangeGroup.h"
 
 #include <cmath>
 
 #include <QVector>
 
 RangeGroup::RangeGroup(QObject *parent)
     : QObject(parent)
 {
     connect(this, &RangeGroup::fromChanged, this, &RangeGroup::rangeChanged);
     connect(this, &RangeGroup::toChanged, this, &RangeGroup::rangeChanged);
     connect(this, &RangeGroup::automaticChanged, this, &RangeGroup::rangeChanged);
     connect(this, &RangeGroup::minimumChanged, this, &RangeGroup::rangeChanged);
     connect(this, &RangeGroup::incrementChanged, this, &RangeGroup::rangeChanged);
 }
 
 qreal RangeGroup::from() const
 {
     return m_from;
 }
 
 void RangeGroup::setFrom(qreal from)
 {
     if (qFuzzyCompare(m_from, from)) {
         return;
     }
 
     m_from = from;
     Q_EMIT fromChanged();
 }
 
 qreal RangeGroup::to() const
 {
     return m_to;
 }
 
 void RangeGroup::setTo(qreal to)
 {
     if (qFuzzyCompare(m_to, to)) {
         return;
     }
 
     m_to = to;
     Q_EMIT toChanged();
 }
 
 bool RangeGroup::automatic() const
 {
     return m_automatic;
 }
 
 void RangeGroup::setAutomatic(bool automatic)
 {
     if (m_automatic == automatic) {
         return;
     }
 
     m_automatic = automatic;
     Q_EMIT automaticChanged();
 }
 
 qreal RangeGroup::distance() const
 {
     return m_to - m_from;
 }
 
 qreal RangeGroup::minimum() const
 {
     return m_minimum;
 }
 
 void RangeGroup::setMinimum(qreal newMinimum)
 {
     if (newMinimum == m_minimum) {
         return;
     }
 
     m_minimum = newMinimum;
     Q_EMIT minimumChanged();
 }
 
 qreal RangeGroup::increment() const
 {
     return m_increment;
 }
 
 void RangeGroup::setIncrement(qreal newIncrement)
 {
     if (newIncrement == m_increment) {
         return;
     }
 
     m_increment = newIncrement;
     Q_EMIT incrementChanged();
 }
 
 bool RangeGroup::isValid() const
 {
     return m_automatic || (m_to > m_from);
 }
 
 RangeGroup::RangeResult RangeGroup::calculateRange(const QVector<ChartDataSource *> &sources,
                                                    std::function<qreal(ChartDataSource *)> minimumCallback,
                                                    std::function<qreal(ChartDataSource *)> maximumCallback)
 {
     RangeResult result;
 
     auto min = std::numeric_limits<qreal>::max();
     auto max = std::numeric_limits<qreal>::min();
 
     if (!m_automatic) {
         min = m_from;
         max = m_to;
     } else {
         std::for_each(sources.begin(), sources.end(), [&](ChartDataSource *source) {
             min = std::min(min, minimumCallback(source));
             max = std::max(max, maximumCallback(source));
         });
     }
 
     max = std::max(max, m_minimum);
     if (m_increment > 0.0) {
         max = m_increment * std::ceil(max / m_increment);
     }
 
     result.start = min;
     result.end = max;
     result.distance = max - min;
 
     return result;
 }
 
 #include "moc_RangeGroup.cpp"