InterferenceForm.cpp

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/View/SampleDesigner/InterferenceForm.cpp
//! @brief     Implements class InterferenceForm
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2021
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#include "GUI/View/SampleDesigner/InterferenceForm.h"
#include "GUI/Model/Descriptor/UIntDescriptor.h"
#include "GUI/Model/Sample/InterferenceItems.h"
#include "GUI/Model/Sample/Lattice2DItems.h"
#include "GUI/Model/Sample/ParticleLayoutItem.h"
#include "GUI/View/Common/CustomEventFilters.h"
#include "GUI/View/SampleDesigner/FormLayouter.h"
#include "GUI/View/SampleDesigner/LatticeTypeSelectionForm.h"
#include "GUI/View/SampleDesigner/SampleEditorController.h"
#include "GUI/View/SampleDesigner/SelectionContainerForm.h"
#include "GUI/View/Tool/GroupBoxCollapser.h"
 
InterferenceForm::InterferenceForm(QWidget* parent, ParticleLayoutItem* layoutItem,
                                   SampleEditorController* ec)
    : QGroupBox(parent)
    , m_layoutItem(layoutItem)
    , m_ec(ec)
{
    setTitle("Interference Function");
 
    FormLayouter layouter(this, ec);
    layouter.setContentsMargins(6, 6, 0, 6);
    m_collapser = GroupBoxCollapser::installIntoGroupBox(this);
 
    m_interferenceTypeCombo = new QComboBox(this);
    WheelEventEater::install(m_interferenceTypeCombo);
    auto d = layoutItem->interference();
    m_interferenceTypeCombo->addItems(d.options);
    m_interferenceTypeCombo->setCurrentIndex(d.currentIndex());
    m_interferenceTypeCombo->setMaxVisibleItems(m_interferenceTypeCombo->count());
    m_interferenceTypeCombo->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
    layouter.addRow("Type:", m_interferenceTypeCombo);
 
    createInterferenceWidgets();
    updateTitle();
 
    connect(m_interferenceTypeCombo, QOverload<int>::of(&QComboBox::currentIndexChanged),
            [=](int newIndex) { m_ec->selectInterference(this, newIndex); });
}
 
ParticleLayoutItem* InterferenceForm::layoutItem() const
{
    return m_layoutItem;
}
 
void InterferenceForm::onInterferenceTypeChanged()
{
    FormLayouter layouter(this, m_ec);
    while (layouter.layout()->rowCount() > 1)
        layouter.layout()->removeRow(1);
 
    createInterferenceWidgets();
    updateTitle();
}
 
void InterferenceForm::createInterferenceWidgets()
{
    FormLayouter layouter(this, m_ec);
    auto* interference = m_layoutItem->interference().currentItem();
 
    // Some values in interference settings affect the total density in the particle layout. To
    // provide all the updating (data & UI), the method
    // SampleEditorController::setDensityRelatedValueValue has to be called (instead of
    // SampleEditorController::setDouble). For this we have the following lambda to add a value:
    const auto addDensityRelatedValue = [&](DoubleDescriptor d) {
        layouter.addValue(
            d, [=](double newValue) { m_ec->setDensityRelatedValue(interference, newValue, d); });
    };
 
    if (auto* itf = dynamic_cast<Interference1DLatticeItem*>(interference)) {
        layouter.addValue(itf->positionVariance());
        layouter.addValue(itf->length());
        layouter.addValue(itf->rotationAngle());
        layouter.addSelection(itf->decayFunction());
    } else if (auto* itf = dynamic_cast<InterferenceRadialParaCrystalItem*>(interference)) {
        layouter.addValue(itf->positionVariance());
        layouter.addValue(itf->peakDistance());
        layouter.addValue(itf->dampingLength());
        layouter.addValue(itf->domainSize());
        layouter.addValue(itf->kappa());
        layouter.addSelection(itf->probabilityDistribution());
    } else if (auto* itf = dynamic_cast<InterferenceHardDiskItem*>(interference)) {
        layouter.addValue(itf->positionVariance());
        layouter.addValue(itf->radius());
        addDensityRelatedValue(itf->density());
    } else if (auto* itf = dynamic_cast<Interference2DLatticeItem*>(interference)) {
        layouter.addValue(itf->positionVariance());
        auto* w = new LatticeTypeSelectionForm(this, itf, m_ec);
        layouter.addRow(itf->latticeType().label, w);
        layouter.addSelection(itf->decayFunction());
    } else if (auto* itf = dynamic_cast<InterferenceFinite2DLatticeItem*>(interference)) {
        layouter.addValue(itf->positionVariance());
        layouter.addValue(itf->domainSize1());
        layouter.addValue(itf->domainSize2());
        auto* w = new LatticeTypeSelectionForm(this, itf, m_ec);
        layouter.addRow(itf->latticeType().label, w);
    } else if (auto* itf = dynamic_cast<Interference2DParaCrystalItem*>(interference)) {
        layouter.addValue(itf->positionVariance());
        layouter.addValue(itf->dampingLength());
        layouter.addValue(itf->domainSize1());
        layouter.addValue(itf->domainSize2());
        auto* w = new LatticeTypeSelectionForm(this, itf, m_ec);
        layouter.addRow(itf->latticeType().label, w);
        layouter.addSelection(itf->probabilityDistribution1());
        layouter.addSelection(itf->probabilityDistribution2());
    }
}
 
void InterferenceForm::updateTitle()
{
    m_collapser->setTitle("Interference Function (" + m_interferenceTypeCombo->currentText() + ")");
}