CellDelegate.cpp

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2018 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#include "MantidQtWidgets/Common/Batch/CellDelegate.h"
#include "MantidQtWidgets/Common/Batch/CellStandardItem.h"
#include "MantidQtWidgets/Common/Batch/QtStandardItemTreeAdapter.h"
#include <QKeyEvent>
#include <QPainter>
 
namespace MantidQt::MantidWidgets::Batch {
 
CellDelegate::CellDelegate(QObject *parent, QTreeView const &view, FilteredTreeModel const &filteredModel,
                           QStandardItemModel const &mainModel)
    : QStyledItemDelegate(parent), m_view(view), m_filteredModel(filteredModel), m_mainModel(mainModel) {}
 
void CellDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const {
  QStyledItemDelegate::paint(painter, option, index);
  painter->save();
 
  auto *item = modelItemFromIndex(m_mainModel, fromMainModel(m_filteredModel.mapToSource(index), m_mainModel));
  auto borderColor = getBorderColor(*item);
  auto borderThickness = getBorderThickness(*item);
 
  auto isCurrentCell = m_view.currentIndex() == index;
  auto pen = ([isCurrentCell, &borderColor, item]() -> QPen {
    if (isCurrentCell & item->isEditable())
      return QPen(Qt::black);
    else
      return QPen(borderColor);
  })();
  pen.setWidth(isCurrentCell ? 2 : borderThickness);
 
  painter->setPen(pen);
  painter->drawRect(option.rect.adjusted(1, 1, -1, -1));
  painter->restore();
}
} // namespace MantidQt::MantidWidgets::Batch