567 lines
15 KiB
C++
567 lines
15 KiB
C++
#include "playlist.h"
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#include "songmimedata.h"
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#include "songplaylistitem.h"
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#include "radiomimedata.h"
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#include "radioplaylistitem.h"
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#include "radiomodel.h"
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#include "savedradio.h"
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#include <QtDebug>
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#include <QMimeData>
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#include <QBuffer>
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#include <QSettings>
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#include <QFileInfo>
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#include <QDirIterator>
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#include <boost/bind.hpp>
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#include <lastfm/ScrobblePoint>
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const char* Playlist::kRowsMimetype = "application/x-clementine-playlist-rows";
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const char* Playlist::kSettingsGroup = "Playlist";
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Playlist::Playlist(QObject *parent) :
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QAbstractListModel(parent),
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current_is_paused_(false),
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scrobble_point_(-1),
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has_scrobbled_(false),
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ignore_sorting_(false)
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{
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}
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Playlist::~Playlist() {
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qDeleteAll(items_);
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}
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QVariant Playlist::headerData(int section, Qt::Orientation, int role) const {
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if (role != Qt::DisplayRole)
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return QVariant();
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switch (section) {
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case Column_Title: return tr("Title");
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case Column_Artist: return tr("Artist");
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case Column_Album: return tr("Album");
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case Column_Length: return tr("Length");
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case Column_Track: return tr("Track");
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case Column_Disc: return tr("Disc");
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case Column_Year: return tr("Year");
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case Column_Genre: return tr("Genre");
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case Column_BPM: return tr("BPM");
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case Column_Bitrate: return tr("Bit rate");
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case Column_Samplerate: return tr("Sample rate");
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case Column_Filename: return tr("File name");
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case Column_Filesize: return tr("File size");
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}
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return QVariant();
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}
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QVariant Playlist::data(const QModelIndex& index, int role) const {
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switch (role) {
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case Role_IsCurrent:
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return current_item_.isValid() && index.row() == current_item_.row();
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case Role_IsPaused:
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return current_is_paused_;
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case Role_StopAfter:
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return stop_after_.isValid() && stop_after_.row() == index.row();
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case Qt::DisplayRole: {
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PlaylistItem* item = items_[index.row()];
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Song song = item->Metadata();
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switch (index.column()) {
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case Column_Title: return song.title();
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case Column_Artist: return song.artist();
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case Column_Album: return song.album();
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case Column_Length: return song.length();
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case Column_Track: return song.track();
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case Column_Disc: return song.disc();
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case Column_Year: return song.year();
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case Column_Genre: return song.genre();
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case Column_BPM: return song.bpm();
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case Column_Bitrate: return song.bitrate();
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case Column_Samplerate: return song.samplerate();
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case Column_Filename: return song.filename();
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case Column_Filesize: return song.filesize();
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}
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}
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default:
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return QVariant();
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}
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}
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int Playlist::current_index() const {
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return current_item_.isValid() ? current_item_.row() : -1;
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}
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int Playlist::next_index() const {
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int i = current_index() + 1;
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if (i >= items_.count())
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return -1;
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if (stop_after_.isValid() && current_index() == stop_after_.row())
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return -1;
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return i;
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}
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int Playlist::previous_index() const {
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int i = current_index() - 1;
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if (i < 0)
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return -1;
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return i;
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}
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void Playlist::set_current_index(int i) {
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QModelIndex old_current = current_item_;
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ClearStreamMetadata();
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current_item_ = QPersistentModelIndex(index(i, 0, QModelIndex()));
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if (old_current.isValid())
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emit dataChanged(old_current, old_current.sibling(old_current.row(), ColumnCount));
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if (current_item_.isValid() && current_item_ != old_current) {
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emit dataChanged(current_item_, current_item_.sibling(current_item_.row(), ColumnCount));
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emit CurrentSongChanged(current_item_metadata());
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}
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UpdateScrobblePoint();
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}
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Qt::ItemFlags Playlist::flags(const QModelIndex &index) const {
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if (index.isValid())
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return Qt::ItemIsDragEnabled | Qt::ItemIsEnabled | Qt::ItemIsSelectable;
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return Qt::ItemIsDropEnabled | Qt::ItemIsEnabled | Qt::ItemIsSelectable;
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}
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QStringList Playlist::mimeTypes() const {
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return QStringList() << "text/uri-list" << kRowsMimetype;
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}
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Qt::DropActions Playlist::supportedDropActions() const {
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return Qt::MoveAction | Qt::CopyAction;
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}
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bool Playlist::dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int, const QModelIndex&) {
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if (action == Qt::IgnoreAction)
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return false;
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if (const SongMimeData* song_data = qobject_cast<const SongMimeData*>(data)) {
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// Dragged from the library
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InsertSongs(song_data->songs, row);
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} else if (const RadioMimeData* radio_data = qobject_cast<const RadioMimeData*>(data)) {
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// Dragged from the Radio pane
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InsertRadioStations(radio_data->items, row);
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} else if (data->hasFormat(kRowsMimetype)) {
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// Dragged from the playlist
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// Rearranging it is tricky...
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// Get the list of rows that were moved
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QList<int> source_rows;
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QDataStream stream(data->data(kRowsMimetype));
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stream >> source_rows;
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qStableSort(source_rows); // Make sure we take them in order
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layoutAboutToBeChanged();
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QList<PlaylistItem*> moved_items;
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// Take the items out of the list first, keeping track of whether the
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// insertion point changes
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int offset = 0;
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foreach (int source_row, source_rows) {
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moved_items << items_.takeAt(source_row-offset);
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if (row != -1 && row >= source_row)
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row --;
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offset++;
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}
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// Put the items back in
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const int start = row == -1 ? items_.count() : row;
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for (int i=start ; i<start+moved_items.count() ; ++i) {
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items_.insert(i, moved_items[i - start]);
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}
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// Update persistent indexes
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foreach (const QModelIndex& pidx, persistentIndexList()) {
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const int dest_offset = source_rows.indexOf(pidx.row());
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if (dest_offset != -1) {
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// This index was moved
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changePersistentIndex(pidx, index(start + dest_offset, pidx.column(), QModelIndex()));
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} else {
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int d = 0;
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foreach (int source_row, source_rows) {
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if (pidx.row() > source_row)
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d --;
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}
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if (pidx.row() + d >= start)
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d += source_rows.count();
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changePersistentIndex(pidx, index(pidx.row() + d, pidx.column(), QModelIndex()));
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}
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}
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layoutChanged();
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Save();
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} else if (data->hasUrls()) {
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// URL list dragged from the file list or some other app
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InsertPaths(data->urls(), row);
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}
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return true;
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}
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QModelIndex Playlist::InsertPaths(QList<QUrl> urls, int after) {
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SongList songs;
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for (int i=0 ; i<urls.count() ; ++i) {
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QUrl url(urls[i]);
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if (url.scheme() != "file")
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continue;
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QString filename(url.toLocalFile());
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QFileInfo info(filename);
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if (!info.exists())
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continue;
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if (info.isDir()) {
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// Add all the songs in the directory
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QDirIterator it(filename,
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QDir::Files | QDir::NoDotAndDotDot | QDir::Readable,
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QDirIterator::Subdirectories | QDirIterator::FollowSymlinks);
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QList<QUrl> new_urls;
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while (it.hasNext()) {
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QString path(it.next());
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new_urls << QUrl::fromLocalFile(path);
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}
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qSort(new_urls);
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urls << new_urls;
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} else {
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Song song;
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song.InitFromFile(filename, -1);
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if (!song.is_valid())
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continue;
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songs << song;
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}
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}
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return InsertSongs(songs, after);
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}
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QModelIndex Playlist::InsertItems(const QList<PlaylistItem*>& items, int after) {
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if (items.isEmpty())
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return QModelIndex();
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const int start = after == -1 ? items_.count() : after;
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const int end = start + items.count() - 1;
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beginInsertRows(QModelIndex(), start, end);
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for (int i=start ; i<=end ; ++i) {
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items_.insert(i, items[i - start]);
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}
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endInsertRows();
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Save();
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return index(start, 0);
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}
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QModelIndex Playlist::InsertSongs(const SongList& songs, int after) {
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QList<PlaylistItem*> items;
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foreach (const Song& song, songs) {
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items << new SongPlaylistItem(song);
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}
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return InsertItems(items, after);
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}
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QModelIndex Playlist::InsertRadioStations(const QList<RadioItem*>& items, int after) {
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QList<PlaylistItem*> playlist_items;
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foreach (RadioItem* item, items) {
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if (!item->playable)
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continue;
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playlist_items << new RadioPlaylistItem(item->service, item->Url(), item->Title(), item->Artist());
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}
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return InsertItems(playlist_items, after);
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}
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QModelIndex Playlist::InsertStreamUrls(const QList<QUrl>& urls, int after) {
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QList<PlaylistItem*> playlist_items;
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foreach (const QUrl& url, urls) {
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playlist_items << new RadioPlaylistItem(
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RadioModel::ServiceByName(SavedRadio::kServiceName), url.toString(), url.toString(), QString());
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}
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return InsertItems(playlist_items, after);
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}
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QMimeData* Playlist::mimeData(const QModelIndexList& indexes) const {
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QMimeData* data = new QMimeData;
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QList<QUrl> urls;
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QList<int> rows;
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foreach (const QModelIndex& index, indexes) {
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if (index.column() != 0)
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continue;
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urls << items_[index.row()]->Url();
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rows << index.row();
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}
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QBuffer buf;
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buf.open(QIODevice::WriteOnly);
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QDataStream stream(&buf);
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stream << rows;
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buf.close();
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data->setUrls(urls);
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data->setData(kRowsMimetype, buf.data());
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return data;
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}
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bool Playlist::CompareItems(int column, Qt::SortOrder order,
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const PlaylistItem* _a, const PlaylistItem* _b) {
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const PlaylistItem* a = order == Qt::AscendingOrder ? _a : _b;
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const PlaylistItem* b = order == Qt::AscendingOrder ? _b : _a;
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switch (column) {
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case Column_Title: return a->Metadata().title() < b->Metadata().title();
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case Column_Artist: return a->Metadata().artist() < b->Metadata().artist();
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case Column_Album: return a->Metadata().album() < b->Metadata().album();
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case Column_Length: return a->Metadata().length() < b->Metadata().length();
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case Column_Track: return a->Metadata().track() < b->Metadata().track();
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}
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return false;
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}
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void Playlist::sort(int column, Qt::SortOrder order) {
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if (ignore_sorting_)
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return;
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layoutAboutToBeChanged();
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// This is a slow and nasty way to keep the persistent indices
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QMap<int, PlaylistItem*> old_persistent_mappings;
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foreach (const QModelIndex& index, persistentIndexList()) {
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old_persistent_mappings[index.row()] = items_[index.row()];
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}
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qStableSort(items_.begin(), items_.end(),
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boost::bind(&Playlist::CompareItems, column, order, _1, _2));
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QMapIterator<int, PlaylistItem*> it(old_persistent_mappings);
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while (it.hasNext()) {
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it.next();
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for (int col=0 ; col<ColumnCount ; ++col) {
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int new_row = items_.indexOf(it.value());
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changePersistentIndex(index(it.key(), col, QModelIndex()),
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index(new_row, col, QModelIndex()));
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}
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}
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layoutChanged();
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Save();
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}
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void Playlist::Playing() {
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SetCurrentIsPaused(false);
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}
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void Playlist::Paused() {
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SetCurrentIsPaused(true);
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}
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void Playlist::Stopped() {
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SetCurrentIsPaused(false);
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}
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void Playlist::SetCurrentIsPaused(bool paused) {
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if (paused == current_is_paused_)
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return;
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current_is_paused_ = paused;
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if (current_item_.isValid())
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dataChanged(index(current_item_.row(), 0),
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index(current_item_.row(), ColumnCount));
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}
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void Playlist::Save() const {
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QSettings s;
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s.beginGroup(kSettingsGroup);
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s.beginWriteArray("items", items_.count());
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for (int i=0 ; i<items_.count() ; ++i) {
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s.setArrayIndex(i);
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s.setValue("type", items_.at(i)->type_string());
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items_.at(i)->Save(s);
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}
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s.endArray();
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}
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void Playlist::Restore() {
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qDeleteAll(items_);
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items_.clear();
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QSettings s;
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s.beginGroup(kSettingsGroup);
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int count = s.beginReadArray("items");
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for (int i=0 ; i<count ; ++i) {
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s.setArrayIndex(i);
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QString type(s.value("type").toString());
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PlaylistItem* item = PlaylistItem::NewFromType(type);
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if (!item)
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continue;
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item->Restore(s);
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items_ << item;
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}
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s.endArray();
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reset();
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}
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bool Playlist::removeRows(int row, int count, const QModelIndex& parent) {
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beginRemoveRows(parent, row, row+count-1);
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// Remove items
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for (int i=0 ; i<count ; ++i)
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delete items_.takeAt(row);
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endRemoveRows();
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Save();
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return true;
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}
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void Playlist::StopAfter(int row) {
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QModelIndex old_stop_after = stop_after_;
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if ((stop_after_.isValid() && stop_after_.row() == row) || row == -1)
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stop_after_ = QModelIndex();
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else
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stop_after_ = index(row, 0);
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if (old_stop_after.isValid())
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emit dataChanged(old_stop_after, old_stop_after.sibling(old_stop_after.row(), ColumnCount));
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if (stop_after_.isValid())
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emit dataChanged(stop_after_, stop_after_.sibling(stop_after_.row(), ColumnCount));
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}
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void Playlist::SetStreamMetadata(const QUrl& url, const Song& song) {
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if (!current_item_.isValid())
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return;
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PlaylistItem* item = items_[current_item_.row()];
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if (item->Url() != url)
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return;
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// Don't update the metadata if it's only a minor change from before
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if (item->Metadata().artist() == song.artist() &&
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item->Metadata().title() == song.title())
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return;
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item->SetTemporaryMetadata(song);
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UpdateScrobblePoint();
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emit dataChanged(index(current_item_.row(), 0), index(current_item_.row(), ColumnCount));
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emit CurrentSongChanged(song);
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}
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void Playlist::ClearStreamMetadata() {
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if (!current_item_.isValid())
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return;
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PlaylistItem* item = items_[current_item_.row()];
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item->ClearTemporaryMetadata();
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UpdateScrobblePoint();
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emit dataChanged(index(current_item_.row(), 0), index(current_item_.row(), ColumnCount));
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}
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bool Playlist::stop_after_current() const {
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return stop_after_.isValid() && current_item_.isValid() &&
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stop_after_.row() == current_item_.row();
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}
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PlaylistItem* Playlist::current_item() const {
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int i = current_index();
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if (i == -1)
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return NULL;
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return item_at(i);
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}
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PlaylistItem::Options Playlist::current_item_options() const {
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PlaylistItem* item = current_item();
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if (!item)
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return PlaylistItem::Default;
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return item->options();
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}
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Song Playlist::current_item_metadata() const {
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PlaylistItem* item = current_item();
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if (!item)
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return Song();
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return item->Metadata();
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}
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void Playlist::UpdateScrobblePoint() {
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int length = current_item_metadata().length();
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ScrobblePoint point(length / 2);
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scrobble_point_ = point;
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has_scrobbled_ = false;
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}
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void Playlist::Clear() {
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qDeleteAll(items_);
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items_.clear();
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reset();
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Save();
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}
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void Playlist::ReloadItems(const QList<int>& rows) {
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foreach (int row, rows) {
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item_at(row)->Reload();
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emit dataChanged(index(row, 0), index(row, ColumnCount-1));
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}
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}
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void Playlist::Shuffle() {
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layoutAboutToBeChanged();
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const int count = items_.count();
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for (int i=0 ; i < count; ++i) {
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int new_pos = i + (rand() % (count - i));
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|
std::swap(items_[i], items_[new_pos]);
|
|
|
|
foreach (const QModelIndex& pidx, persistentIndexList()) {
|
|
if (pidx.row() == i)
|
|
changePersistentIndex(pidx, index(new_pos, pidx.column(), QModelIndex()));
|
|
else if (pidx.row() == new_pos)
|
|
changePersistentIndex(pidx, index(i, pidx.column(), QModelIndex()));
|
|
}
|
|
}
|
|
|
|
layoutChanged();
|
|
|
|
Save();
|
|
}
|