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https://github.com/wang-bin/QtAV.git
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wang-bin
106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
/******************************************************************************
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QtAV Player Demo: this file is part of QtAV examples
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Copyright (C) 2012-2014 Wang Bin <wbsecg1@gmail.com>
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* This file is part of QtAV
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#include "PlayListModel.h"
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#include "PlayListItem.h"
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#include <QtCore/QVector>
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PlayListModel::PlayListModel(QObject *parent) :
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QAbstractListModel(parent)
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{
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}
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QList<PlayListItem> PlayListModel::items() const
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{
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return mItems;
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}
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Qt::ItemFlags PlayListModel::flags(const QModelIndex &index) const
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{
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if (!index.isValid())
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return QAbstractListModel::flags(index) | Qt::ItemIsDropEnabled;;
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return QAbstractListModel::flags(index) | Qt::ItemIsSelectable;
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}
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int PlayListModel::rowCount(const QModelIndex &parent) const
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{
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if (parent.isValid())
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return 0;
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return mItems.size();
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}
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QVariant PlayListModel::data(const QModelIndex &index, int role) const
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{
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QVariant v;
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if (index.row() < 0 || index.row() >= mItems.size())
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return v;
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if (role == Qt::DisplayRole || role == Qt::EditRole)
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v.setValue(mItems.at(index.row()));
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return v;
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}
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bool PlayListModel::setData(const QModelIndex &index, const QVariant &value, int role)
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{
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if (index.row() >= 0 && index.row() < mItems.size()
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&& (role == Qt::EditRole || role == Qt::DisplayRole)) {
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// TODO: compare value?
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mItems.replace(index.row(), value.value<PlayListItem>());
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#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
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emit dataChanged(index, index, QVector<int>() << role);
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#else
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emit dataChanged(index, index);
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#endif
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return true;
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}
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return false;
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}
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bool PlayListModel::insertRows(int row, int count, const QModelIndex &parent)
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{
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if (count < 1 || row < 0 || row > rowCount(parent))
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return false;
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beginInsertRows(QModelIndex(), row, row + count - 1);
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for (int r = 0; r < count; ++r)
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mItems.insert(row, PlayListItem());
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endInsertRows();
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return true;
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}
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bool PlayListModel::removeRows(int row, int count, const QModelIndex &parent)
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{
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if (count <= 0 || row < 0 || (row + count) > rowCount(parent))
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return false;
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beginRemoveRows(QModelIndex(), row, row + count - 1);
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for (int r = 0; r < count; ++r)
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mItems.removeAt(row);
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endRemoveRows();
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return true;
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}
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void PlayListModel::updateLayout()
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{
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emit layoutChanged();
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}
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