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lxqt-runner-packaging/mylistview.h

66 lines
1.8 KiB

/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXQt - a lightweight, Qt based, desktop toolset
* http://lxqt.org
*
* Copyright: 2017 LXQt team
* Authors:
* Palo Kisa <palo.kisa@gmail.com>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#if !defined(mylistview_h)
#define mylistview_h
#include <QListView>
#include <QDebug>
class MyListView : public QListView
{
public:
using QListView::QListView;
inline void setShownCount(int shownCount)
{
mShownCount = shownCount;
}
protected:
virtual QSize viewportSizeHint() const override
{
QAbstractItemModel * m = model();
if (m == nullptr)
return QSize{};
QSize s{0, 0};
for (int i = 0, i_e = qMin(mShownCount, model()->rowCount(QModelIndex{})); i != i_e; ++i)
{
const QSize s_i = sizeHintForIndex(m->index(i, 0, QModelIndex{}));
s.rwidth() = qMax(s.width(), s_i.width());
s.rheight() += s_i.height();
}
return s;
}
private:
int mShownCount = 4;
};
#endif // mylistview_h