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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/Modelview/SetView.cpp
//! @brief Implements class SetView.
//!
//! @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/View/Modelview/SetView.h"
#include "Base/Util/Assert.h"
#include "GUI/Model/Type/SetWithModel.h"
#include "GUI/View/Widget/ListItemDelegate.h"
SetView::SetView(AbstractSetModel* set, int minimum_width, QSizePolicy policy)
{
setMinimumWidth(minimum_width);
setSizePolicy(policy);
setSelectionMode(QAbstractItemView::NoSelection);
setItemDelegate(new ListItemDelegate(this));
setCurrentIndex({}); // make "current" invalid, hence invisible
setSet(set);
}
void SetView::setSet(AbstractSetModel* set)
{
disconnect(this, &QListView::clicked, nullptr, nullptr);
if (set) {
QListView::setModel(set->model());
connect(this, &QListView::clicked,
[set](const QModelIndex& qi) { set->setCurrentIndex(qi.row()); });
connect(set, &AbstractSetModel::indexSet, [this, set]() {
QModelIndex idx = model()->index(set->currentIndex(), 0, QModelIndex());
setCurrentIndex(idx); // keep "current" the same as selected
});
} else {
// It seems to be a stable though undocumented feature of QAbstractItemView::setModel
// that the nullptr argument is supported: https://stackoverflow.com/a/46630417/1017348.
QListView::setModel(nullptr);
}
}
void SetView::setModel(QAbstractItemModel*)
{
ASSERT_NEVER; // always use setSet
}
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