Warning, file /education/kalzium/src/gradientwidget_impl.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
     SPDX-FileCopyrightText: 2006 Carsten Niehaus <cniehaus@kde.org>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "gradientwidget_impl.h"
 #include "kalziumelementproperty.h"
 
 #include <KLocalizedString>
 
 #include "kalzium_debug.h"
 #include <QIcon>
 #include <QTimer>
 
 #include <cmath>
 #include <element.h>
 
 #include "kalziumdataobject.h"
 #include "prefs.h"
 
 // used to convert the double variables to int's. (slider <-> spinbox)
 #define MULTIPLIKATOR 1000
 
 GradientWidgetImpl::GradientWidgetImpl(QWidget *parent)
     : QWidget(parent)
     , m_timer(new QTimer(this))
 {
     setupUi(this);
 
     scheme_combo->addItems(KalziumElementProperty::instance()->schemeList());
     gradient_combo->addItems(KalziumElementProperty::instance()->gradientList());
 
     connect(gradient_spinbox, SIGNAL(valueChanged(double)), this, SLOT(doubleToSlider(double)));
     connect(gradient_slider, &QAbstractSlider::valueChanged, this, &GradientWidgetImpl::intToSpinbox);
 
     connect(Play, &QAbstractButton::clicked, this, &GradientWidgetImpl::play);
     connect(m_timer, &QTimer::timeout, this, &GradientWidgetImpl::tick);
 
     Play->setIcon(QIcon::fromTheme(QStringLiteral("media-playback-start")));
 }
 
 GradientWidgetImpl::~GradientWidgetImpl()
 {
     delete m_timer;
 }
 
 void GradientWidgetImpl::slotGradientChanged()
 {
     if (!gradient_slider->isEnabled()) {
         gradient_spinbox->setEnabled(true);
         gradient_slider->setEnabled(true);
         Play->setEnabled(true);
     }
 
     KalziumElementProperty *elementProperty = KalziumElementProperty::instance();
     double dblMax = elementProperty->gradient()->maxValue();
     double dblMin = elementProperty->gradient()->minValue();
 
     // saving the decimals in the int
     const int intMax = dblMax * MULTIPLIKATOR;
     const int intMin = dblMin * MULTIPLIKATOR;
 
     // now we have the slider numbers, so put the speed to a adequate value.
     Speed->setMaximum(intMax / 100);
     Speed->setValue((intMax / 100) / 2);
 
     gradient_slider->setMaximum(intMax);
     gradient_slider->setMinimum(intMin);
 
     lblUnit->setText(elementProperty->gradient()->unit());
 
     gradient_spinbox->setMaximum(dblMax);
     gradient_spinbox->setMinimum(dblMin);
     gradient_spinbox->setDecimals(elementProperty->gradient()->decimals());
 
     switch (elementProperty->gradientId()) {
     case KalziumElementProperty::DISCOVERYDATE:
         gradient_spinbox->setValue(dblMax);
         break;
 
     case KalziumElementProperty::SOMGradientType:
         gradient_spinbox->setValue(dblMin + 293);
         break;
 
     default:
         gradient_spinbox->setValue(dblMin);
         break;
     }
 
     // Disable Gradient widgets if no gradient is selected.
     if (gradient_combo->currentIndex() == KalziumElementProperty::NOGRADIENT) {
         gradient_spinbox->setEnabled(false);
         gradient_slider->setEnabled(false);
         Play->setEnabled(false);
         text->clear();
     }
 }
 
 void GradientWidgetImpl::doubleToSlider(double doubleVar)
 {
     // the signals need to be blocked as both will return to this slot. But no
     // matter which UI elements (slider oder spinbox) was changed, the other
     // has to be set to the same value
 
     gradient_slider->blockSignals(true);
 
     // setting the decimals in int
     int intvar = doubleVar * MULTIPLIKATOR;
 
     gradient_slider->setValue(intvar);
 
     gradient_slider->blockSignals(false);
 
     Q_EMIT gradientValueChanged(doubleVar);
 
     setNewValue(doubleVar);
 }
 
 void GradientWidgetImpl::intToSpinbox(int var)
 {
     gradient_spinbox->blockSignals(true);
 
     // put int back to double with decimals
     double doublevar = var;
     doublevar = doublevar / MULTIPLIKATOR;
 
     gradient_spinbox->setValue(doublevar);
 
     gradient_spinbox->blockSignals(false);
 
     Q_EMIT gradientValueChanged(doublevar);
 
     setNewValue(doublevar);
 }
 
 void GradientWidgetImpl::setNewValue(double newValue)
 {
     // Info text currently only for State of mater typ available.
     if (gradient_combo->currentIndex() != KalziumElementProperty::SOMGradientType) {
         text->clear();
         return;
     }
 
     static const int threshold = 25;
 
     const QString unitSymbol = lblUnit->text();
 
     QStringList listMeltingPoint;
     QStringList listBoilingPoint;
     QStringList listBoilingPointValue;
     QStringList listMeltingPointValue;
 
     foreach (Element *element, KalziumDataObject::instance()->ElementList) {
         double melting = element->dataAsVariant(ChemicalDataObject::meltingpoint, Prefs::temperatureUnit()).toDouble();
         if ((melting > 0.0) && fabs(melting - newValue) <= threshold) {
             listMeltingPoint << element->dataAsString(ChemicalDataObject::name);
             listMeltingPointValue << QString::number(melting);
         }
 
         double boiling = element->dataAsVariant(ChemicalDataObject::boilingpoint, Prefs::temperatureUnit()).toDouble();
         if ((boiling > 0.0) && fabs(boiling - newValue) <= threshold) {
             listBoilingPoint << element->dataAsString(ChemicalDataObject::name);
             listBoilingPointValue << QString::number(boiling);
         }
     }
     QString htmlcode;
     if (!listMeltingPoint.isEmpty()) {
         htmlcode += i18n("Elements with melting point around this temperature:") + '\n';
         for (int i = 0; i < listMeltingPoint.count(); ++i) {
             htmlcode += " - " + i18nc("For example: Carbon (300K)", "%1 (%2%3)", listMeltingPoint.at(i), listMeltingPointValue.at(i), unitSymbol) + '\n';
         }
         htmlcode += '\n';
     } else {
         htmlcode += i18n("No elements with a melting point around this temperature");
         htmlcode += QLatin1String("\n\n");
     }
     if (!listBoilingPoint.isEmpty()) {
         htmlcode += i18n("Elements with boiling point around this temperature:") + '\n';
         for (int i = 0; i < listBoilingPoint.count(); ++i) {
             htmlcode += " - " + i18nc("For example: Carbon (300K)", "%1 (%2%3)", listBoilingPoint.at(i), listBoilingPointValue.at(i), unitSymbol) + '\n';
         }
         htmlcode += '\n';
     } else {
         htmlcode += i18n("No elements with a boiling point around this temperature");
         htmlcode += '\n';
     }
 
     text->setText(/*m_htmlBegin +*/ htmlcode /*+ m_htmlEnd*/);
 }
 
 void GradientWidgetImpl::play()
 {
     if (m_play) { // Currently playing
         // The Mode is 'Play' so stop
         stop();
         return;
     }
 
     // The mode is not 'play'
     // If the slider is at the maximum position bring it to the minimum
     if ((gradient_slider)->value() >= gradient_slider->maximum()) {
         gradient_slider->setValue(gradient_slider->minimum());
     }
     // start the timer at 200 millisecond time interval with single shot disabled
     m_timer->start(200);
 
     m_play = true; // start playing
     Play->setIcon(QIcon::fromTheme(QStringLiteral("media-playback-pause")));
 }
 
 void GradientWidgetImpl::stop()
 {
     // Currently playing, stop the timer.
     m_timer->stop();
     Play->setIcon(QIcon::fromTheme(QStringLiteral("media-playback-start")));
     m_play = false; // Stop
 }
 
 void GradientWidgetImpl::tick()
 {
     int increment = Speed->value();
     int temp = gradient_slider->value();
     int max = gradient_slider->maximum();
     if (temp + increment > max) {
         stop();
     }
     gradient_slider->setValue(temp + increment);
 }