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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "listmodel.h"
#include "recycledlistitem.h"
ListModel::ListModel(QObject *parent)
: QAbstractListModel(parent)
, m_items()
{
}
ListModel::~ListModel()
{
qDeleteAll(m_items);
m_items.clear();
}
int ListModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return m_items.count();
}
QVariant ListModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (index.row() >= m_items.size() || index.row() < 0)
return QVariant();
switch (role)
{
case Qt::DisplayRole:
return QVariant::fromValue(m_items.at(index.row())->data(role));
default:
return QVariant();
}
}
bool ListModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
// TODO implement if we like to edit list items
Q_UNUSED(index)
Q_UNUSED(value)
Q_UNUSED(role)
return false;
}
void ListModel::clear()
{
m_items.clear();
reset();
}
QModelIndex ListModel::index(int row, int column, const QModelIndex &parent) const
{
if (hasIndex(row, column, parent))
return createIndex(row, column, m_items.at(row));
return QModelIndex();
}
void ListModel::insert(int row, RecycledListItem *item)
{
if (item)
item->setModel(this);
if (!item || m_items.contains(item) ) {
return;
}
if (row < 0)
row = 0;
else if (row > m_items.count())
row = m_items.count();
beginInsertRows(QModelIndex(), row, row);
m_items.insert(row, item);
endInsertRows();
}
void ListModel::appendRow(RecycledListItem *item)
{
if (!item) return;
item->setModel(this);
insert(rowCount(),item);
}
RecycledListItem *ListModel::item(const int row) const
{
if (row < 0 || row > m_items.count())
return 0;
return m_items.at(row);
}
RecycledListItem *ListModel::takeItem(const int row)
{
if (row < 0 || row >= m_items.count())
return 0;
beginRemoveRows(QModelIndex(), row, row);
RecycledListItem *item = m_items.takeAt(row);
endRemoveRows();
return item;
}
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