// Squawk messenger. 
// Copyright (C) 2019  Yury Gubich <blue@macaw.me>
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#include "expandinglist.h"

QSize ExpandingList::viewportSizeHint() const {
    if (QAbstractItemView::sizeAdjustPolicy() != QAbstractScrollArea::AdjustToContents)
        return QListView::viewportSizeHint();

    if (model() == nullptr)
        return QSize(0, 0);
    if (model()->rowCount() == 0)
        return QSize(0, 0);

#if (QT_VERSION < QT_VERSION_CHECK(6, 2, 0))
    const int rowCount = model()->rowCount();
    int height = 0;
    for (int i = 0; i < rowCount; i++) {
        height += QListView::sizeHintForRow(i);
    }
    return QSize(QListView::viewportSizeHint().width(), height);
#else
    return QListView::viewportSizeHint();
#endif
}

QSize ExpandingList::minimumSizeHint() const {
    return viewportSizeHint();
}