DataViewUtils.cpp

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/Model/Data/DataViewUtils.cpp
//! @brief     Implements functions in namespace DataViewUtils
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#include "GUI/Model/Data/DataViewUtils.h"
#include "Device/Coord/ICoordSystem.h"
#include "GUI/Model/Data/Data1DViewItem.h"
#include "GUI/Model/Data/DataItem.h"
#include "GUI/Model/Device/InstrumentItems.h"
#include "GUI/Model/Job/JobItem.h"
#include "GUI/Util/CoordName.h"
 
namespace {
 
ICoordSystem* getConverter(Data1DViewItem* view_item)
{
    auto* job_item = view_item->jobItem();
    ASSERT(job_item->instrumentItem());
 
    return job_item->instrumentItem()->createCoordSystem();
}
 
Coords selectedUnits(Data1DViewItem* view_item)
{
    QString current_unit_name = view_item->axesUnits().getValue();
    return GUI::Util::CoordName::coordFromName(current_unit_name);
}
 
} // namespace
 
 
void GUI::Model::DataViewUtils::updateAxesTitle(Data1DViewItem* view_item)
{
    std::unique_ptr<ICoordSystem> converter{getConverter(view_item)};
    if (!converter)
        return;
    auto current_units = selectedUnits(view_item);
    view_item->setXaxisTitle(QString::fromStdString(converter->axisName(0, current_units)));
    if (converter->rank() > 1)
        view_item->setYaxisTitle(QString::fromStdString(converter->axisName(1, current_units)));
}
 
std::unique_ptr<Datafield> GUI::Model::DataViewUtils::getTranslatedData(Data1DViewItem* view_item,
                                                                        DataItem* data_item)
{
    if (!data_item || !data_item->getDatafield())
        return {};
 
    auto* converter = getConverter(view_item);
    auto current_units = selectedUnits(view_item);
 
    auto result = std::make_unique<Datafield>(converter->convertedAxes(current_units));
 
    result->setVector(data_item->getDatafield()->flatVector());
 
    return result;
}