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squawk/ui/utils/expandinglist.cpp

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// 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();
}