103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
// Copyright (C) 2017 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "playlistmodel.h"
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#include "qt/qmediaplaylist.h"
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#include <QFileInfo>
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#include <QUrl>
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PlaylistModel::PlaylistModel(QObject *parent)
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: QAbstractItemModel(parent)
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{
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m_playlist.reset(new QMediaPlaylist);
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connect(m_playlist.data(), &QMediaPlaylist::mediaAboutToBeInserted, this, &PlaylistModel::beginInsertItems);
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connect(m_playlist.data(), &QMediaPlaylist::mediaInserted, this, &PlaylistModel::endInsertItems);
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connect(m_playlist.data(), &QMediaPlaylist::mediaAboutToBeRemoved, this, &PlaylistModel::beginRemoveItems);
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connect(m_playlist.data(), &QMediaPlaylist::mediaRemoved, this, &PlaylistModel::endRemoveItems);
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connect(m_playlist.data(), &QMediaPlaylist::mediaChanged, this, &PlaylistModel::changeItems);
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}
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PlaylistModel::~PlaylistModel() = default;
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int PlaylistModel::rowCount(const QModelIndex &parent) const
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{
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return m_playlist && !parent.isValid() ? m_playlist->mediaCount() : 0;
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}
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int PlaylistModel::columnCount(const QModelIndex &parent) const
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{
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return !parent.isValid() ? ColumnCount : 0;
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}
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QModelIndex PlaylistModel::index(int row, int column, const QModelIndex &parent) const
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{
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return m_playlist && !parent.isValid()
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&& row >= 0 && row < m_playlist->mediaCount()
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&& column >= 0 && column < ColumnCount
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? createIndex(row, column)
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: QModelIndex();
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}
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QModelIndex PlaylistModel::parent(const QModelIndex &child) const
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{
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Q_UNUSED(child);
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return QModelIndex();
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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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if (index.isValid() && role == Qt::DisplayRole) {
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QVariant value = m_data[index];
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if (!value.isValid() && index.column() == Title) {
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QUrl location = m_playlist->media(index.row());
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return QFileInfo(location.path()).fileName();
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}
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return value;
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}
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return QVariant();
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}
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QMediaPlaylist *PlaylistModel::playlist() const
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{
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return m_playlist.data();
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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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Q_UNUSED(role);
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m_data[index] = value;
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emit dataChanged(index, index);
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return true;
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}
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void PlaylistModel::beginInsertItems(int start, int end)
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{
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m_data.clear();
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beginInsertRows(QModelIndex(), start, end);
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}
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void PlaylistModel::endInsertItems()
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{
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endInsertRows();
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}
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void PlaylistModel::beginRemoveItems(int start, int end)
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{
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m_data.clear();
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beginRemoveRows(QModelIndex(), start, end);
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}
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void PlaylistModel::endRemoveItems()
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{
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endInsertRows();
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}
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void PlaylistModel::changeItems(int start, int end)
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{
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m_data.clear();
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emit dataChanged(index(start,0), index(end,ColumnCount));
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}
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