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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/Model/Beam/BeamDistributionItem.cpp
//! @brief Implements class BeamDistributionItem.
//!
//! @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/Beam/BeamDistributionItem.h"
#include "Base/Util/Assert.h"
namespace {
namespace Tag {
const QString BeamDistribution("Distribution");
} // namespace Tag
} // namespace
BeamDistributionItem::BeamDistributionItem(double scale)
: m_scale(scale)
{
m_distribution.simpleInit("Distribution", "", DistributionCatalog::Type::Delta);
}
BeamDistributionItem::~BeamDistributionItem() = default;
void BeamDistributionItem::writeTo(QXmlStreamWriter* w) const
{
XML::writeTaggedElement(w, Tag::BeamDistribution, m_distribution);
}
void BeamDistributionItem::readFrom(QXmlStreamReader* r)
{
while (r->readNextStartElement()) {
QString tag = r->name().toString();
if (tag == Tag::BeamDistribution) {
ASSERT(distributionItem());
// keep the same limits after re-creating and reading the item
const RealLimits old_limits = distributionItem()->center().limits();
XML::readTaggedElement(r, tag, m_distribution);
ASSERT(distributionItem());
distributionItem()->center().setLimits(old_limits);
} else
r->skipCurrentElement();
}
}
double BeamDistributionItem::centralValue() const
{
return distributionItem()->center().dVal();
}
void BeamDistributionItem::resetToValue(double value)
{
auto* d = new DistributionDeltaItem();
d->mean().setDVal(value);
m_distribution.setCertainItem(d);
}
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