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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/Widget/ListItemDelegate.cpp
//! @brief Implements class ListItemDelegate.
//!
//! @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/Widget/ListItemDelegate.h"
#include "Base/Util/Assert.h"
#include <QPainter>
#include <QTextDocument>
namespace {
QSize mySizeHint(const QString& text)
{
QTextDocument doc;
doc.setHtml(text);
doc.setTextWidth(10000 /*options.rect.width()*/);
QSize size = QSize(doc.idealWidth(), doc.size().height());
return size;
}
} // namespace
ListItemDelegate::ListItemDelegate(QObject* parent)
: QStyledItemDelegate(parent)
{
}
void ListItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option,
const QModelIndex& index) const
{
QStyleOptionViewItem options = option;
initStyleOption(&options, index);
QStyledItemDelegate::paint(painter, option, index);
painter->save();
painter->setPen(QPen(Qt::lightGray, 1));
painter->drawLine(options.rect.left(), options.rect.bottom(), options.rect.right(),
options.rect.bottom());
painter->restore();
}
QSize ListItemDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const
{
ASSERT(index.isValid());
int h = QStyledItemDelegate::sizeHint(option, index).height();
QStyleOptionViewItem options = option;
initStyleOption(&options, index);
auto s2 = mySizeHint(options.text);
h = std::max(h, 32);
h = std::max(h, s2.height() + 10);
return {s2.width() + h, h};
}
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