+++ /dev/null
-/*
- * Copyright (C) 2016 The Qt Company Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "playlistwithmetadata.h"
-
-#include <QtCore/QDebug>
-#include <QtCore/QBuffer>
-#include <QtGui/QImage>
-#include <QtGui/QImageWriter>
-#include <QtMultimedia/QMediaPlayer>
-#include <QtMultimedia/QMediaMetaData>
-
-class PlaylistWithMetadata::Private
-{
-public:
- Private(PlaylistWithMetadata *parent);
-
- void disconnect();
- void connect();
-
-private:
- void loadMetadata(int row);
-
-private:
- PlaylistWithMetadata *q;
-
-public:
- QAbstractListModel *source;
- QList<QMetaObject::Connection> connections;
- QList<QUrl> urls;
- QHash<QUrl, QString> title;
- QHash<QUrl, QString> artist;
- QHash<QUrl, QUrl> coverArt;
- QHash<QUrl, qint64> duration;
- QHash<QUrl, QMediaPlayer *> players;
-};
-
-PlaylistWithMetadata::Private::Private(PlaylistWithMetadata *parent)
- : q(parent)
- , source(nullptr)
-{
-}
-
-void PlaylistWithMetadata::Private::disconnect()
-{
- if (source) {
- for (const auto &connection : connections)
- q->disconnect(connection);
- connections.clear();
- }
-}
-
-void PlaylistWithMetadata::Private::connect()
-{
- if (source) {
- connections.append(q->connect(source, &QAbstractListModel::rowsAboutToBeInserted, [&](const QModelIndex &parent, int first, int last) {
- Q_UNUSED(parent)
- q->beginInsertRows(QModelIndex(), first, last);
- }));
- connections.append(q->connect(source, &QAbstractListModel::rowsInserted, [&](const QModelIndex &parent, int first, int last) {
- Q_UNUSED(parent)
- for (int i = first; i <= last; i++) {
- loadMetadata(i);
- }
- q->endInsertRows();
- }));
-
- connections.append(q->connect(source, &QAbstractListModel::rowsAboutToBeRemoved, [&](const QModelIndex &parent, int first, int last) {
- Q_UNUSED(parent)
- q->beginRemoveRows(QModelIndex(), first, last);
- }));
- connections.append(q->connect(source, &QAbstractListModel::rowsRemoved, [&](const QModelIndex &parent, int first, int last) {
- Q_UNUSED(parent)
- for (int i = last; i >= first; --i) {
- QUrl url = urls.at(i);
- urls.removeAt(i);
-
- players.remove(url);
- title.remove(url);
- artist.remove(url);
- coverArt.remove(url);
- duration.remove(url);
- }
- q->endRemoveRows();
- }));
-
- int count = source->rowCount();
- if (count > 0) {
- q->beginInsertRows(QModelIndex(), 0, count);
- for (int i = 0; i < count; i++) {
- loadMetadata(i);
- }
- q->endInsertRows();
- }
- }
-}
-
-void PlaylistWithMetadata::Private::loadMetadata(int row)
-{
- QUrl url = source->data(source->index(row), Qt::UserRole + 1).toUrl();
- QMediaPlayer *player = new QMediaPlayer(q);
- urls.append(url);
- players.insert(url, player);
- q->connect(player, &QMediaPlayer::mediaStatusChanged, [this, url](QMediaPlayer::MediaStatus mediaStatus) {
- switch (mediaStatus) {
- case QMediaPlayer::NoMedia:
- case QMediaPlayer::LoadedMedia: {
- QMediaPlayer *player = players.take(url);
- title.insert(url, player->metaData(QMediaMetaData::Title).toString());
- artist.insert(url, player->metaData(QMediaMetaData::ContributingArtist).toString());
- QVariant coverArtImage = player->metaData(QMediaMetaData::CoverArtImage);
- if (coverArtImage.type() == QVariant::Image) {
- QImage image = coverArtImage.value<QImage>();
- QByteArray data;
- QBuffer buffer(&data);
- buffer.open(QBuffer::WriteOnly);
- QImageWriter png(&buffer, "png");
- if (png.write(image)) {
- buffer.close();
- coverArt.insert(url, QUrl(QStringLiteral("data:image/png;base64,") + data.toBase64()));
- }
- }
- duration.insert(url, player->duration());
- QModelIndex index = q->index(urls.indexOf(url));
- q->dataChanged(index, index, QVector<int>() << TitleRole << ArtistRole << CoverArtRole << DurationRole);
- player->deleteLater();
- break; }
- default:
- break;
- }
-
- });
- player->setMedia(url);
-}
-
-PlaylistWithMetadata::PlaylistWithMetadata(QObject *parent)
- : QAbstractListModel(parent)
- , d(new Private(this))
-{
-}
-
-PlaylistWithMetadata::~PlaylistWithMetadata()
-{
- delete d;
-}
-
-int PlaylistWithMetadata::rowCount(const QModelIndex &parent) const
-{
- int ret = 0;
- if (parent.isValid())
- return ret;
- if (d->source)
- ret = d->source->rowCount(QModelIndex());
- return ret;
-}
-
-QVariant PlaylistWithMetadata::data(const QModelIndex &index, int role) const
-{
- QVariant ret;
- if (!index.isValid())
- return ret;
- int row = index.row();
- if (row < 0 || rowCount() <= row)
- return ret;
- QUrl url = d->urls.at(row);
- switch (role) {
- case TitleRole:
- ret = d->title.value(url);
- if (ret.toString().isEmpty())
- ret = QVariant(url.fileName());
- break;
- case ArtistRole:
- ret = d->artist.value(url);
- break;
- case CoverArtRole:
- ret = d->coverArt.value(url);
- break;
- case SourceRole:
- ret = url;
- break;
- case DurationRole:
- ret = d->duration.value(url);
- break;
- default:
- qWarning() << role;
- }
-
- return ret;
-}
-
-QHash<int, QByteArray> PlaylistWithMetadata::roleNames() const
-{
- return {
- {TitleRole, "title"},
- {ArtistRole, "artist"},
- {CoverArtRole, "coverArt"},
- {SourceRole, "source"},
- {DurationRole, "duration"}
- };
-}
-
-QAbstractListModel *PlaylistWithMetadata::source() const
-{
- return d->source;
-}
-
-void PlaylistWithMetadata::setSource(QAbstractListModel *source)
-{
- if (d->source == source) return;
- d->disconnect();
- d->source = source;
- d->connect();
- emit sourceChanged(source);
-}
+++ /dev/null
-/*
- * Copyright (C) 2016 The Qt Company Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef PLAYLISTWITHMETADATA_H
-#define PLAYLISTWITHMETADATA_H
-
-#include <QtCore/QAbstractListModel>
-
-class PlaylistWithMetadata : public QAbstractListModel
-{
- Q_OBJECT
- Q_PROPERTY(QAbstractListModel *source READ source WRITE setSource NOTIFY sourceChanged)
-public:
- PlaylistWithMetadata(QObject *parent = nullptr);
- ~PlaylistWithMetadata();
-
- enum {
- TitleRole = Qt::DisplayRole
- , ArtistRole = Qt::UserRole + 1
- , CoverArtRole
- , SourceRole
- , DurationRole
- };
-
- int rowCount(const QModelIndex &parent = QModelIndex()) const override;
- QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
- QHash<int, QByteArray> roleNames() const override;
-
- QAbstractListModel *source() const;
-
-public slots:
- void setSource(QAbstractListModel *source);
-
-signals:
- void sourceChanged(QAbstractListModel *source);
-
-private:
- class Private;
- Private *d;
-};
-
-#endif // PLAYLISTWITHMETADATA_H
Code Review / apps / mediaplayer.git / commitdiff