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strawberry-audio-player-win.../src/playlist/playlist.cpp

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Initial commit.
2018-02-27 18:06:05 +01:00
/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
*
* Strawberry is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Strawberry is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <algorithm>
#include <functional>
#include <memory>
#include <unordered_map>
#include <QApplication>
#include <QBuffer>
#include <QCoreApplication>
#include <QDirIterator>
#include <QFileInfo>
#include <QLinkedList>
#include <QMimeData>
#include <QMutableListIterator>
#include <QSortFilterProxyModel>
#include <QUndoStack>
#include <QtConcurrentRun>
#include <QtDebug>
#include "playlist.h"
#include "playlistbackend.h"
#include "playlistfilter.h"
#include "playlistitemmimedata.h"
#include "playlistundocommands.h"
#include "playlistview.h"
#include "queue.h"
#include "songloaderinserter.h"
#include "songmimedata.h"
#include "songplaylistitem.h"
#include "core/application.h"
#include "core/closure.h"
#include "core/logging.h"
//#include "core/qhash_qurl.h"
#include "core/tagreaderclient.h"
#include "core/timeconstants.h"
#include "collection/collection.h"
#include "collection/collectionbackend.h"
#include "collection/collectionmodel.h"
#include "collection/collectionplaylistitem.h"
using std::placeholders::_1;
using std::placeholders::_2;
using std::shared_ptr;
using std::unordered_map;
const char *Playlist::kCddaMimeType = "x-content/audio-cdda";
const char *Playlist::kRowsMimetype = "application/x-strawberry-playlist-rows";
const char *Playlist::kPlayNowMimetype = "application/x-strawberry-play-now";
const int Playlist::kInvalidSongPriority = 200;
const QRgb Playlist::kInvalidSongColor = qRgb(0xC0, 0xC0, 0xC0);
const int Playlist::kDynamicHistoryPriority = 100;
const QRgb Playlist::kDynamicHistoryColor = qRgb(0x80, 0x80, 0x80);
const char *Playlist::kSettingsGroup = "Playlist";
const char *Playlist::kPathType = "path_type";
const char *Playlist::kWriteMetadata = "write_metadata";
const int Playlist::kUndoStackSize = 20;
const int Playlist::kUndoItemLimit = 500;
Playlist::Playlist(PlaylistBackend *backend, TaskManager *task_manager, CollectionBackend *collection, int id, const QString &special_type, bool favorite, QObject *parent)
: QAbstractListModel(parent),
is_loading_(false),
proxy_(new PlaylistFilter(this)),
queue_(new Queue(this)),
backend_(backend),
task_manager_(task_manager),
collection_(collection),
id_(id),
favorite_(favorite),
current_is_paused_(false),
current_virtual_index_(-1),
is_shuffled_(false),
playlist_sequence_(nullptr),
ignore_sorting_(false),
undo_stack_(new QUndoStack(this)),
special_type_(special_type),
cancel_restore_(false) {
undo_stack_->setUndoLimit(kUndoStackSize);
connect(this, SIGNAL(rowsInserted(const QModelIndex&, int, int)), SIGNAL(PlaylistChanged()));
connect(this, SIGNAL(rowsRemoved(const QModelIndex&, int, int)), SIGNAL(PlaylistChanged()));
Restore();
proxy_->setSourceModel(this);
queue_->setSourceModel(this);
connect(queue_, SIGNAL(rowsAboutToBeRemoved(QModelIndex, int, int)), SLOT(TracksAboutToBeDequeued(QModelIndex, int, int)));
connect(queue_, SIGNAL(rowsRemoved(QModelIndex,int,int)), SLOT(TracksDequeued()));
connect(queue_, SIGNAL(rowsInserted(const QModelIndex&, int, int)), SLOT(TracksEnqueued(const QModelIndex&, int, int)));
connect(queue_, SIGNAL(layoutChanged()), SLOT(QueueLayoutChanged()));
column_alignments_ = PlaylistView::DefaultColumnAlignment();
}
Playlist::~Playlist() {
items_.clear();
collection_items_by_id_.clear();
}
template <typename T>
void Playlist::InsertSongItems(const SongList &songs, int pos, bool play_now, bool enqueue) {
PlaylistItemList items;
for (const Song &song : songs) {
items << PlaylistItemPtr(new T(song));
}
InsertItems(items, pos, play_now, enqueue);
}
QVariant Playlist::headerData(int section, Qt::Orientation, int role) const {
if (role != Qt::DisplayRole && role != Qt::ToolTipRole) return QVariant();
const QString name = column_name((Playlist::Column)section);
if (!name.isEmpty()) return name;
return QVariant();
}
bool Playlist::column_is_editable(Playlist::Column column) {
switch (column) {
case Column_Title:
case Column_Artist:
case Column_Album:
case Column_AlbumArtist:
case Column_Composer:
case Column_Performer:
case Column_Grouping:
case Column_Track:
case Column_Disc:
case Column_Year:
case Column_Genre:
case Column_Comment:
return true;
default:
break;
}
return false;
}
bool Playlist::set_column_value(Song &song, Playlist::Column column, const QVariant &value) {
if (!song.IsEditable()) return false;
switch (column) {
case Column_Title:
song.set_title(value.toString());
break;
case Column_Artist:
song.set_artist(value.toString());
break;
case Column_Album:
song.set_album(value.toString());
break;
case Column_AlbumArtist:
song.set_albumartist(value.toString());
break;
case Column_Composer:
song.set_composer(value.toString());
break;
case Column_Performer:
song.set_performer(value.toString());
break;
case Column_Grouping:
song.set_grouping(value.toString());
break;
case Column_Track:
song.set_track(value.toInt());
break;
case Column_Disc:
song.set_disc(value.toInt());
break;
case Column_Year:
song.set_year(value.toInt());
break;
case Column_Genre:
song.set_genre(value.toString());
break;
case Column_Comment:
song.set_comment(value.toString());
break;
default:
break;
}
return true;
}
QVariant Playlist::data(const QModelIndex &index, int role) const {
switch (role) {
case Role_IsCurrent:
return current_item_index_.isValid() && index.row() == current_item_index_.row();
case Role_IsPaused:
return current_is_paused_;
case Role_StopAfter:
return stop_after_.isValid() && stop_after_.row() == index.row();
case Role_QueuePosition:
return queue_->PositionOf(index);
case Qt::EditRole:
case Qt::ToolTipRole:
case Qt::DisplayRole: {
PlaylistItemPtr item = items_[index.row()];
Song song = item->Metadata();
// Don't forget to change Playlist::CompareItems when adding new columns
switch (index.column()) {
case Column_Title: return song.PrettyTitle();
case Column_Artist: return song.artist();
case Column_Album: return song.album();
case Column_Length: return song.length_nanosec();
case Column_Track: return song.track();
case Column_Disc: return song.disc();
case Column_Year: return song.year();
case Column_OriginalYear: return song.effective_originalyear();
case Column_Genre: return song.genre();
case Column_AlbumArtist: return song.playlist_albumartist();
case Column_Composer: return song.composer();
case Column_Performer: return song.performer();
case Column_Grouping: return song.grouping();
case Column_PlayCount: return song.playcount();
case Column_SkipCount: return song.skipcount();
case Column_LastPlayed: return song.lastplayed();
case Column_Samplerate: return song.samplerate();
case Column_Bitdepth: return song.bitdepth();
case Column_Bitrate: return song.bitrate();
case Column_SamplerateBitdepth: return song.SampleRateBitDepthToText();
case Column_Filename: return song.url();
case Column_BaseFilename: return song.basefilename();
case Column_Filesize: return song.filesize();
case Column_Filetype: return song.filetype();
case Column_DateModified: return song.mtime();
case Column_DateCreated: return song.ctime();
case Column_Comment:
if (role == Qt::DisplayRole) return song.comment().simplified();
return song.comment();
//case Column_Source: return item->Url();
}
return QVariant();
}
case Qt::TextAlignmentRole:
return QVariant(column_alignments_.value(index.column(), (Qt::AlignLeft | Qt::AlignVCenter)));
case Qt::ForegroundRole:
if (data(index, Role_IsCurrent).toBool()) {
// Ignore any custom colours for the currently playing item - they might
// clash with the glowing current track indicator.
return QVariant();
}
if (items_[index.row()]->HasCurrentForegroundColor()) {
return QBrush(items_[index.row()]->GetCurrentForegroundColor());
}
//if (index.row() < dynamic_history_length()) {
//return QBrush(kDynamicHistoryColor);
//}
return QVariant();
case Qt::BackgroundRole:
if (data(index, Role_IsCurrent).toBool()) {
// Ignore any custom colours for the currently playing item - they might
// clash with the glowing current track indicator.
return QVariant();
}
if (items_[index.row()]->HasCurrentBackgroundColor()) {
return QBrush(items_[index.row()]->GetCurrentBackgroundColor());
}
return QVariant();
case Qt::FontRole:
if (items_[index.row()]->GetShouldSkip()) {
QFont track_font;
track_font.setStrikeOut(true);
return track_font;
}
return QVariant();
default:
return QVariant();
}
}
bool Playlist::setData(const QModelIndex &index, const QVariant &value, int role) {
int row = index.row();
PlaylistItemPtr item = item_at(row);
Song song = item->Metadata();
if (index.data() == value) return false;
if (!set_column_value(song, (Column)index.column(), value)) return false;
TagReaderReply *reply = TagReaderClient::Instance()->SaveFile( song.url().toLocalFile(), song);
NewClosure(reply, SIGNAL(Finished(bool)), this, SLOT(SongSaveComplete(TagReaderReply*,QPersistentModelIndex)), reply, QPersistentModelIndex(index));
return true;
}
void Playlist::SongSaveComplete(TagReaderReply *reply, const QPersistentModelIndex &index) {
if (reply->is_successful() && index.isValid()) {
if (reply->message().save_file_response().success()) {
QFuture<void> future = item_at(index.row())->BackgroundReload();
NewClosure(future, this, SLOT(ItemReloadComplete(QPersistentModelIndex)), index);
}
else {
emit Error(tr("An error occurred writing metadata to '%1'").arg(QString::fromStdString(reply->request_message().save_file_request().filename())));
}
}
reply->deleteLater();
}
void Playlist::ItemReloadComplete(const QPersistentModelIndex &index) {
if (index.isValid()) {
emit dataChanged(index, index);
emit EditingFinished(index);
}
}
int Playlist::current_row() const {
return current_item_index_.isValid() ? current_item_index_.row() : -1;
}
const QModelIndex Playlist::current_index() const {
return current_item_index_;
}
int Playlist::last_played_row() const {
return last_played_item_index_.isValid() ? last_played_item_index_.row() : -1;
}
void Playlist::ShuffleModeChanged(PlaylistSequence::ShuffleMode mode) {
is_shuffled_ = (mode != PlaylistSequence::Shuffle_Off);
ReshuffleIndices();
}
bool Playlist::FilterContainsVirtualIndex(int i) const {
if (i < 0 || i >= virtual_items_.count()) return false;
return proxy_->filterAcceptsRow(virtual_items_[i], QModelIndex());
}
int Playlist::NextVirtualIndex(int i, bool ignore_repeat_track) const {
PlaylistSequence::RepeatMode repeat_mode = playlist_sequence_->repeat_mode();
PlaylistSequence::ShuffleMode shuffle_mode = playlist_sequence_->shuffle_mode();
bool album_only = repeat_mode == PlaylistSequence::Repeat_Album || shuffle_mode == PlaylistSequence::Shuffle_InsideAlbum;
// This one's easy - if we have to repeat the current track then just return i
if (repeat_mode == PlaylistSequence::Repeat_Track && !ignore_repeat_track) {
if (!FilterContainsVirtualIndex(i))
return virtual_items_.count(); // It's not in the filter any more
return i;
}
// If we're not bothered about whether a song is on the same album then
// return the next virtual index, whatever it is.
if (!album_only) {
++i;
// Advance i until we find any track that is in the filter, skipping
// the selected to be skipped
while (i < virtual_items_.count() && (!FilterContainsVirtualIndex(i) || item_at(virtual_items_[i])->GetShouldSkip())) {
++i;
}
return i;
}
// We need to advance i until we get something else on the same album
Song last_song = current_item_metadata();
for (int j = i + 1; j < virtual_items_.count(); ++j) {
if (item_at(virtual_items_[j])->GetShouldSkip()) {
continue;
}
Song this_song = item_at(virtual_items_[j])->Metadata();
if (((last_song.is_compilation() && this_song.is_compilation()) ||
last_song.artist() == this_song.artist()) &&
last_song.album() == this_song.album() &&
FilterContainsVirtualIndex(j)) {
return j; // Found one
}
}
// Couldn't find one - return past the end of the list
return virtual_items_.count();
}
int Playlist::PreviousVirtualIndex(int i, bool ignore_repeat_track) const {
PlaylistSequence::RepeatMode repeat_mode = playlist_sequence_->repeat_mode();
PlaylistSequence::ShuffleMode shuffle_mode = playlist_sequence_->shuffle_mode();
bool album_only = repeat_mode == PlaylistSequence::Repeat_Album || shuffle_mode == PlaylistSequence::Shuffle_InsideAlbum;
// This one's easy - if we have to repeat the current track then just return i
if (repeat_mode == PlaylistSequence::Repeat_Track && !ignore_repeat_track) {
if (!FilterContainsVirtualIndex(i)) return -1;
return i;
}
// If we're not bothered about whether a song is on the same album then
// return the previous virtual index, whatever it is.
if (!album_only) {
--i;
// Decrement i until we find any track that is in the filter
while (i >= 0 && (!FilterContainsVirtualIndex(i) || item_at(virtual_items_[i])->GetShouldSkip())) --i;
return i;
}
// We need to decrement i until we get something else on the same album
Song last_song = current_item_metadata();
for (int j = i - 1; j >= 0; --j) {
if (item_at(virtual_items_[j])->GetShouldSkip()) {
continue;
}
Song this_song = item_at(virtual_items_[j])->Metadata();
if (((last_song.is_compilation() && this_song.is_compilation()) || last_song.artist() == this_song.artist()) && last_song.album() == this_song.album() && FilterContainsVirtualIndex(j)) {
return j; // Found one
}
}
// Couldn't find one - return before the start of the list
return -1;
}
int Playlist::next_row(bool ignore_repeat_track) const {
// Any queued items take priority
if (!queue_->is_empty()) {
return queue_->PeekNext();
}
int next_virtual_index = NextVirtualIndex(current_virtual_index_, ignore_repeat_track);
if (next_virtual_index >= virtual_items_.count()) {
// We've gone off the end of the playlist.
switch (playlist_sequence_->repeat_mode()) {
case PlaylistSequence::Repeat_Off:
case PlaylistSequence::Repeat_Intro:
return -1;
case PlaylistSequence::Repeat_Track:
next_virtual_index = current_virtual_index_;
break;
default:
next_virtual_index = NextVirtualIndex(-1, ignore_repeat_track);
break;
}
}
// Still off the end? Then just give up
if (next_virtual_index < 0 || next_virtual_index >= virtual_items_.count()) return -1;
return virtual_items_[next_virtual_index];
}
int Playlist::previous_row(bool ignore_repeat_track) const {
int prev_virtual_index = PreviousVirtualIndex(current_virtual_index_,ignore_repeat_track);
if (prev_virtual_index < 0) {
// We've gone off the beginning of the playlist.
switch (playlist_sequence_->repeat_mode()) {
case PlaylistSequence::Repeat_Off:
return -1;
case PlaylistSequence::Repeat_Track:
prev_virtual_index = current_virtual_index_;
break;
default:
prev_virtual_index = PreviousVirtualIndex(virtual_items_.count(),ignore_repeat_track);
break;
}
}
// Still off the beginning? Then just give up
if (prev_virtual_index < 0) return -1;
return virtual_items_[prev_virtual_index];
}
void Playlist::set_current_row(int i, bool is_stopping) {
QModelIndex old_current_item_index = current_item_index_;
//ClearStreamMetadata();
current_item_index_ = QPersistentModelIndex(index(i, 0, QModelIndex()));
// if the given item is the first in the queue, remove it from the queue
if (current_item_index_.row() == queue_->PeekNext()) {
queue_->TakeNext();
}
if (current_item_index_ == old_current_item_index) return;
if (old_current_item_index.isValid()) {
emit dataChanged(old_current_item_index, old_current_item_index.sibling(old_current_item_index.row(), ColumnCount - 1));
}
// Update the virtual index
if (i == -1) {
current_virtual_index_ = -1;
}
else if (is_shuffled_ && current_virtual_index_ == -1) {
// This is the first thing we're playing so we want to make sure the array
// is shuffled
ReshuffleIndices();
// Bring the one we've been asked to play to the start of the list
virtual_items_.takeAt(virtual_items_.indexOf(i));
virtual_items_.prepend(i);
current_virtual_index_ = 0;
}
else if (is_shuffled_) {
current_virtual_index_ = virtual_items_.indexOf(i);
}
else {
current_virtual_index_ = i;
}
if (current_item_index_.isValid() && !is_stopping) {
InformOfCurrentSongChange();
}
if (current_item_index_.isValid()) {
last_played_item_index_ = current_item_index_;
Save();
}
}
Qt::ItemFlags Playlist::flags(const QModelIndex &index) const {
Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
if (column_is_editable((Column)index.column())) flags |= Qt::ItemIsEditable;
if (index.isValid()) return flags | Qt::ItemIsDragEnabled;
return Qt::ItemIsDropEnabled;
}
QStringList Playlist::mimeTypes() const {
return QStringList() << "text/uri-list" << kRowsMimetype;
}
Qt::DropActions Playlist::supportedDropActions() const {
return Qt::MoveAction | Qt::CopyAction | Qt::LinkAction;
}
bool Playlist::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int, const QModelIndex&) {
if (action == Qt::IgnoreAction) return false;
bool play_now = false;
bool enqueue_now = false;
if (const MimeData *mime_data = qobject_cast<const MimeData*>(data)) {
if (mime_data->clear_first_) {
Clear();
}
play_now = mime_data->play_now_;
enqueue_now = mime_data->enqueue_now_;
}
if (const SongMimeData *song_data = qobject_cast<const SongMimeData*>(data)) {
// Dragged from a collection
// We want to check if these songs are from the actual local file backend,
// if they are we treat them differently.
if (song_data->backend && song_data->backend->songs_table() == Collection::kSongsTable)
InsertSongItems<CollectionPlaylistItem>(song_data->songs, row, play_now, enqueue_now);
else
InsertSongItems<SongPlaylistItem>(song_data->songs, row, play_now, enqueue_now);
}
else if (const PlaylistItemMimeData *item_data = qobject_cast<const PlaylistItemMimeData*>(data)) {
InsertItems(item_data->items_, row, play_now, enqueue_now);
}
else if (data->hasFormat(kRowsMimetype)) {
// Dragged from the playlist
// Rearranging it is tricky...
// Get the list of rows that were moved
QList<int> source_rows;
Playlist *source_playlist = nullptr;
qint64 pid = 0;
qint64 own_pid = QCoreApplication::applicationPid();
QDataStream stream(data->data(kRowsMimetype));
stream.readRawData(reinterpret_cast<char*>(&source_playlist), sizeof(source_playlist));
stream >> source_rows;
if (!stream.atEnd()) {
stream.readRawData((char*)&pid, sizeof(pid));
}
else {
pid = !own_pid;
}
qStableSort(source_rows); // Make sure we take them in order
if (source_playlist == this) {
// Dragged from this playlist - rearrange the items
undo_stack_->push(new PlaylistUndoCommands::MoveItems(this, source_rows, row));
}
else if (pid == own_pid) {
// Drag from a different playlist
PlaylistItemList items;
for (int row : source_rows) items << source_playlist->item_at(row);
if (items.count() > kUndoItemLimit) {
// Too big to keep in the undo stack. Also clear the stack because it
// might have been invalidated.
InsertItemsWithoutUndo(items, row, false);
undo_stack_->clear();
}
else {
undo_stack_->push(new PlaylistUndoCommands::InsertItems(this, items, row));
}
// Remove the items from the source playlist if it was a move event
if (action == Qt::MoveAction) {
for (int row : source_rows) {
source_playlist->undo_stack()->push(new PlaylistUndoCommands::RemoveItems(source_playlist, row, 1));
}
}
}
}
else if (data->hasFormat(kCddaMimeType)) {
SongLoaderInserter *inserter = new SongLoaderInserter(task_manager_, collection_, backend_->app()->player());
connect(inserter, SIGNAL(Error(QString)), SIGNAL(Error(QString)));
inserter->LoadAudioCD(this, row, play_now, enqueue_now);
}
else if (data->hasUrls()) {
// URL list dragged from the file list or some other app
InsertUrls(data->urls(), row, play_now, enqueue_now);
}
return true;
}
void Playlist::InsertUrls(const QList<QUrl> &urls, int pos, bool play_now, bool enqueue) {
SongLoaderInserter *inserter = new SongLoaderInserter(task_manager_, collection_, backend_->app()->player());
connect(inserter, SIGNAL(Error(QString)), SIGNAL(Error(QString)));
inserter->Load(this, pos, play_now, enqueue, urls);
}
void Playlist::MoveItemWithoutUndo(int source, int dest) {
MoveItemsWithoutUndo(QList<int>() << source, dest);
}
void Playlist::MoveItemsWithoutUndo(const QList<int> &source_rows, int pos) {
layoutAboutToBeChanged();
PlaylistItemList moved_items;
if (pos < 0) {
pos = items_.count();
}
// Take the items out of the list first, keeping track of whether the
// insertion point changes
int offset = 0;
int start = pos;
for (int source_row : source_rows) {
moved_items << items_.takeAt(source_row - offset);
if (pos > source_row) {
start--;
}
offset++;
}
// Put the items back in
for (int i = start; i < start + moved_items.count(); ++i) {
moved_items[i - start]->RemoveForegroundColor(kDynamicHistoryPriority);
items_.insert(i, moved_items[i - start]);
}
// Update persistent indexes
for (const QModelIndex &pidx : persistentIndexList()) {
const int dest_offset = source_rows.indexOf(pidx.row());
if (dest_offset != -1) {
// This index was moved
changePersistentIndex(pidx, index(start + dest_offset, pidx.column(), QModelIndex()));
} else {
int d = 0;
for (int source_row : source_rows) {
if (pidx.row() > source_row) d--;
}
if (pidx.row() + d >= start) d += source_rows.count();
changePersistentIndex(pidx, index(pidx.row() + d, pidx.column(), QModelIndex()));
}
}
current_virtual_index_ = virtual_items_.indexOf(current_row());
layoutChanged();
Save();
}
void Playlist::MoveItemsWithoutUndo(int start, const QList<int> &dest_rows) {
layoutAboutToBeChanged();
PlaylistItemList moved_items;
int pos = start;
for (int dest_row : dest_rows) {
if (dest_row < pos) start--;
}
if (start < 0) {
start = items_.count() - dest_rows.count();
}
// Take the items out of the list first
for (int i = 0; i < dest_rows.count(); i++)
moved_items << items_.takeAt(start);
// Put the items back in
int offset = 0;
for (int dest_row : dest_rows) {
items_.insert(dest_row, moved_items[offset]);
offset++;
}
// Update persistent indexes
for (const QModelIndex &pidx : persistentIndexList()) {
if (pidx.row() >= start && pidx.row() < start + dest_rows.count()) {
// This index was moved
const int i = pidx.row() - start;
changePersistentIndex(pidx, index(dest_rows[i], pidx.column(), QModelIndex()));
} else {
int d = 0;
if (pidx.row() >= start + dest_rows.count())
d -= dest_rows.count();
for (int dest_row : dest_rows) {
if (pidx.row() + d > dest_row) d++;
}
changePersistentIndex(pidx, index(pidx.row() + d, pidx.column(), QModelIndex()));
}
}
current_virtual_index_ = virtual_items_.indexOf(current_row());
layoutChanged();
Save();
}
void Playlist::InsertItems(const PlaylistItemList &itemsIn, int pos, bool play_now, bool enqueue) {
if (itemsIn.isEmpty())
return;
PlaylistItemList items = itemsIn;
// exercise vetoes
SongList songs;
for (PlaylistItemPtr item : items) {
songs << item->Metadata();
}
const int song_count = songs.length();
QSet<Song> vetoed;
for (SongInsertVetoListener *listener : veto_listeners_) {
for (const Song &song :
listener->AboutToInsertSongs(GetAllSongs(), songs)) {
// avoid veto-ing a song multiple times
vetoed.insert(song);
}
if (vetoed.count() == song_count) {
// all songs were vetoed and there's nothing more to do (there's no need for an undo step)
return;
}
}
if (!vetoed.isEmpty()) {
QMutableListIterator<PlaylistItemPtr> it(items);
while (it.hasNext()) {
PlaylistItemPtr item = it.next();
const Song &current = item->Metadata();
if (vetoed.contains(current)) {
vetoed.remove(current);
it.remove();
}
}
// check for empty items once again after veto
if (items.isEmpty()) {
return;
}
}
const int start = pos == -1 ? items_.count() : pos;
if (items.count() > kUndoItemLimit) {
// Too big to keep in the undo stack. Also clear the stack because it
// might have been invalidated.
InsertItemsWithoutUndo(items, pos, enqueue);
undo_stack_->clear();
} else {
undo_stack_->push(new PlaylistUndoCommands::InsertItems(this, items, pos, enqueue));
}
if (play_now) emit PlayRequested(index(start, 0));
}
void Playlist::InsertItemsWithoutUndo(const PlaylistItemList &items, int pos, bool enqueue) {
if (items.isEmpty()) return;
const int start = pos == -1 ? items_.count() : pos;
const int end = start + items.count() - 1;
beginInsertRows(QModelIndex(), start, end);
for (int i = start; i <= end; ++i) {
PlaylistItemPtr item = items[i - start];
items_.insert(i, item);
virtual_items_ << virtual_items_.count();
if (item->type() == "Collection") {
int id = item->Metadata().id();
if (id != -1) {
collection_items_by_id_.insertMulti(id, item);
}
}
if (item == current_item()) {
// It's one we removed before that got re-added through an undo
current_item_index_ = index(i, 0);
last_played_item_index_ = current_item_index_;
}
}
endInsertRows();
if (enqueue) {
QModelIndexList indexes;
for (int i = start; i <= end; ++i) {
indexes << index(i, 0);
}
queue_->ToggleTracks(indexes);
}
Save();
ReshuffleIndices();
}
void Playlist::InsertCollectionItems(const SongList &songs, int pos, bool play_now, bool enqueue) {
InsertSongItems<CollectionPlaylistItem>(songs, pos, play_now, enqueue);
}
void Playlist::InsertSongs(const SongList &songs, int pos, bool play_now, bool enqueue) {
InsertSongItems<SongPlaylistItem>(songs, pos, play_now, enqueue);
}
void Playlist::InsertSongsOrCollectionItems(const SongList &songs, int pos, bool play_now, bool enqueue) {
PlaylistItemList items;
for (const Song &song : songs) {
if (song.is_collection_song()) {
items << PlaylistItemPtr(new CollectionPlaylistItem(song));
} else {
items << PlaylistItemPtr(new SongPlaylistItem(song));
}
}
InsertItems(items, pos, play_now, enqueue);
}
void Playlist::UpdateItems(const SongList &songs) {
qLog(Debug) << "Updating playlist with new tracks' info";
// We first convert our songs list into a linked list (a 'real' list),
// because removals are faster with QLinkedList.
// Next, we walk through the list of playlist's items then the list of songs
// we want to update: if an item corresponds to the song (we rely on URL for
// this), we update the item with the new metadata, then we remove song from
// our list because we will not need to check it again.
// And we also update undo actions.
QLinkedList<Song> songs_list;
for (const Song &song : songs) songs_list.append(song);
for (int i = 0; i < items_.size(); i++) {
// Update current items list
QMutableLinkedListIterator<Song> it(songs_list);
while (it.hasNext()) {
const Song &song = it.next();
PlaylistItemPtr &item = items_[i];
if (item->Metadata().url() == song.url() &&
(item->Metadata().filetype() == Song::Type_Unknown ||
// And CD tracks as well (tags are loaded in a second step)
item->Metadata().filetype() == Song::Type_Cdda)) {
PlaylistItemPtr new_item;
if (song.is_collection_song()) {
new_item = PlaylistItemPtr(new CollectionPlaylistItem(song));
collection_items_by_id_.insertMulti(song.id(), new_item);
} else {
new_item = PlaylistItemPtr(new SongPlaylistItem(song));
}
items_[i] = new_item;
emit dataChanged(index(i, 0), index(i, ColumnCount - 1));
// Also update undo actions
for (int i = 0; i < undo_stack_->count(); i++) {
QUndoCommand *undo_action = const_cast<QUndoCommand*>(undo_stack_->command(i));
PlaylistUndoCommands::InsertItems *undo_action_insert = dynamic_cast<PlaylistUndoCommands::InsertItems*>(undo_action);
if (undo_action_insert) {
bool found_and_updated = undo_action_insert->UpdateItem(new_item);
if (found_and_updated) break;
}
}
it.remove();
break;
}
}
}
Save();
}
QMimeData *Playlist::mimeData(const QModelIndexList &indexes) const {
if (indexes.isEmpty()) return nullptr;
// We only want one index per row, but we can't just take column 0 because
// the user might have hidden it.
const int first_column = indexes.first().column();
QMimeData *data = new QMimeData;
QList<QUrl> urls;
QList<int> rows;
for (const QModelIndex &index : indexes) {
if (index.column() != first_column) continue;
urls << items_[index.row()]->Url();
rows << index.row();
}
QBuffer buf;
buf.open(QIODevice::WriteOnly);
QDataStream stream(&buf);
const Playlist *self = this;
const qint64 pid = QCoreApplication::applicationPid();
stream.writeRawData(reinterpret_cast<char*>(&self), sizeof(self));
stream << rows;
stream.writeRawData((char*)&pid, sizeof(pid));
buf.close();
data->setUrls(urls);
data->setData(kRowsMimetype, buf.data());
return data;
}
bool Playlist::CompareItems(int column, Qt::SortOrder order, shared_ptr<PlaylistItem> _a, shared_ptr<PlaylistItem> _b) {
shared_ptr<PlaylistItem> a = order == Qt::AscendingOrder ? _a : _b;
shared_ptr<PlaylistItem> b = order == Qt::AscendingOrder ? _b : _a;
#define cmp(field) return a->Metadata().field() < b->Metadata().field()
#define strcmp(field) return QString::localeAwareCompare(a->Metadata().field().toLower(), b->Metadata().field().toLower()) < 0;
switch (column) {
case Column_Title: strcmp(title);
case Column_Artist: strcmp(artist);
case Column_Album: strcmp(album);
case Column_Length: cmp(length_nanosec);
case Column_Track: cmp(track);
case Column_Disc: cmp(disc);
case Column_Year: cmp(year);
case Column_OriginalYear: cmp(originalyear);
case Column_Genre: strcmp(genre);
case Column_AlbumArtist: strcmp(playlist_albumartist);
case Column_Composer: strcmp(composer);
case Column_Performer: strcmp(performer);
case Column_Grouping: strcmp(grouping);
case Column_PlayCount: cmp(playcount);
case Column_SkipCount: cmp(skipcount);
case Column_LastPlayed: cmp(lastplayed);
case Column_Bitrate: cmp(bitrate);
case Column_Samplerate: cmp(samplerate);
case Column_Bitdepth: cmp(bitdepth);
case Column_SamplerateBitdepth:
return QString::localeAwareCompare(a->Metadata().SampleRateBitDepthToText().toLower(), b->Metadata().SampleRateBitDepthToText().toLower()) < 0;
case Column_Filename:
return (QString::localeAwareCompare(a->Url().path().toLower(), b->Url().path().toLower()) < 0);
case Column_BaseFilename: cmp(basefilename);
case Column_Filesize: cmp(filesize);
case Column_Filetype: cmp(filetype);
case Column_DateModified: cmp(mtime);
case Column_DateCreated: cmp(ctime);
case Column_Comment: strcmp(comment);
//case Column_Source: cmp(url);
}
#undef cmp
#undef strcmp
return false;
}
bool Playlist::ComparePathDepths(Qt::SortOrder order, shared_ptr<PlaylistItem> _a, shared_ptr<PlaylistItem> _b) {
shared_ptr<PlaylistItem> a = order == Qt::AscendingOrder ? _a : _b;
shared_ptr<PlaylistItem> b = order == Qt::AscendingOrder ? _b : _a;
int a_dir_level = a->Url().path().count('/');
int b_dir_level = b->Url().path().count('/');
return a_dir_level < b_dir_level;
}
QString Playlist::column_name(Column column) {
switch (column) {
case Column_Title: return tr("Title");
case Column_Artist: return tr("Artist");
case Column_Album: return tr("Album");
case Column_Track: return tr("Track");
case Column_Disc: return tr("Disc");
case Column_Length: return tr("Length");
case Column_Year: return tr("Year");
case Column_OriginalYear: return tr("Original year");
case Column_Genre: return tr("Genre");
case Column_AlbumArtist: return tr("Album artist");
case Column_Composer: return tr("Composer");
case Column_Performer: return tr("Performer");
case Column_Grouping: return tr("Grouping");
case Column_PlayCount: return tr("Play count");
case Column_SkipCount: return tr("Skip count");
case Column_LastPlayed: return tr("Last played");
case Column_Samplerate: return tr("Sample rate");
case Column_Bitdepth: return tr("Bit depth");
case Column_SamplerateBitdepth: return tr("Sample rate B");
case Column_Bitrate: return tr("Bit rate");
case Column_Filename: return tr("File name");
case Column_BaseFilename: return tr("File name (without path)");
case Column_Filesize: return tr("File size");
case Column_Filetype: return tr("File type");
case Column_DateModified: return tr("Date modified");
case Column_DateCreated: return tr("Date created");
case Column_Comment: return tr("Comment");
//case Column_Source: return tr("Source");
default: return QString();
}
return "";
}
QString Playlist::abbreviated_column_name(Column column) {
const QString &column_name = Playlist::column_name(column);
switch (column) {
case Column_Disc:
case Column_PlayCount:
case Column_SkipCount:
case Column_Track:
return QString("%1#").arg(column_name[0]);
default:
return column_name;
}
return "";
}
void Playlist::sort(int column, Qt::SortOrder order) {
if (ignore_sorting_) return;
PlaylistItemList new_items(items_);
PlaylistItemList::iterator begin = new_items.begin();
if (column == Column_Album) {
// When sorting by album, also take into account discs and tracks.
qStableSort(begin, new_items.end(), std::bind(&Playlist::CompareItems, Column_Track, order, _1, _2));
qStableSort(begin, new_items.end(), std::bind(&Playlist::CompareItems, Column_Disc, order, _1, _2));
qStableSort(begin, new_items.end(), std::bind(&Playlist::CompareItems, Column_Album, order, _1, _2));
}
else if (column == Column_Filename) {
// When sorting by full paths we also expect a hierarchical order. This
// returns a breath-first ordering of paths.
qStableSort(begin, new_items.end(), std::bind(&Playlist::CompareItems, Column_Filename, order, _1, _2));
qStableSort(begin, new_items.end(), std::bind(&Playlist::ComparePathDepths, order, _1, _2));
}
else {
qStableSort(begin, new_items.end(), std::bind(&Playlist::CompareItems, column, order, _1, _2));
}
undo_stack_->push(new PlaylistUndoCommands::SortItems(this, column, order, new_items));
ReshuffleIndices();
}
void Playlist::ReOrderWithoutUndo(const PlaylistItemList &new_items) {
layoutAboutToBeChanged();
PlaylistItemList old_items = items_;
items_ = new_items;
QMap<const PlaylistItem*, int> new_rows;
for (int i = 0; i < new_items.length(); ++i) {
new_rows[new_items[i].get()] = i;
}
for (const QModelIndex &idx : persistentIndexList()) {
const PlaylistItem *item = old_items[idx.row()].get();
changePersistentIndex(idx, index(new_rows[item], idx.column(), idx.parent()));
}
layoutChanged();
emit PlaylistChanged();
Save();
}
void Playlist::Playing() { SetCurrentIsPaused(false); }
void Playlist::Paused() { SetCurrentIsPaused(true); }
void Playlist::Stopped() { SetCurrentIsPaused(false); }
void Playlist::SetCurrentIsPaused(bool paused) {
if (paused == current_is_paused_) return;
current_is_paused_ = paused;
if (current_item_index_.isValid())
dataChanged(index(current_item_index_.row(), 0), index(current_item_index_.row(), ColumnCount - 1));
}
void Playlist::Save() const {
if (!backend_ || is_loading_) return;
backend_->SavePlaylistAsync(id_, items_, last_played_row());
}
//namespace {
//typedef QFutureWatcher<QList<PlaylistItemPtr>> PlaylistItemFutureWatcher;
//}
void Playlist::Restore() {
if (!backend_) return;
items_.clear();
virtual_items_.clear();
collection_items_by_id_.clear();
cancel_restore_ = false;
QFuture<QList<PlaylistItemPtr>> future = QtConcurrent::run(backend_, &PlaylistBackend::GetPlaylistItems, id_);
NewClosure(future, this, SLOT(ItemsLoaded(QFuture<PlaylistItemList>)), future);
}
void Playlist::ItemsLoaded(QFuture<PlaylistItemList> future) {
if (cancel_restore_) return;
PlaylistItemList items = future.result();
// backend returns empty elements for collection items which it couldn't
// match (because they got deleted); we don't need those
QMutableListIterator<PlaylistItemPtr> it(items);
while (it.hasNext()) {
PlaylistItemPtr item = it.next();
if (item->IsLocalCollectionItem() && item->Metadata().url().isEmpty()) {
it.remove();
}
}
is_loading_ = true;
InsertItems(items, 0);
is_loading_ = false;
PlaylistBackend::Playlist p = backend_->GetPlaylist(id_);
// the newly loaded list of items might be shorter than it was before so
// look out for a bad last_played index
last_played_item_index_ = p.last_played == -1 || p.last_played >= rowCount() ? QModelIndex() : index(p.last_played);
emit RestoreFinished();
QSettings s;
s.beginGroup(kSettingsGroup);
// should we gray out deleted songs asynchronously on startup?
if (s.value("greyoutdeleted", false).toBool()) {
QtConcurrent::run(this, &Playlist::InvalidateDeletedSongs);
}
}
static bool DescendingIntLessThan(int a, int b) { return a > b; }
void Playlist::RemoveItemsWithoutUndo(const QList<int> &indicesIn) {
// Sort the indices descending because removing elements 'backwards'
// is easier - indices don't 'move' in the process.
QList<int> indices = indicesIn;
qSort(indices.begin(), indices.end(), DescendingIntLessThan);
for (int j = 0; j < indices.count(); j++) {
int beginning = indices[j], end = indices[j];
// Splits the indices into sequences. For example this: [1, 2, 4],
// will get split into [1, 2] and [4].
while (j != indices.count() - 1 && indices[j] == indices[j + 1] + 1) {
beginning--;
j++;
}
// Remove the current sequence.
removeRows(beginning, end - beginning + 1);
}
}
bool Playlist::removeRows(int row, int count, const QModelIndex &parent) {
if (row < 0 || row >= items_.size() || row + count > items_.size()) {
return false;
}
if (count > kUndoItemLimit) {
// Too big to keep in the undo stack. Also clear the stack because it
// might have been invalidated.
RemoveItemsWithoutUndo(row, count);
undo_stack_->clear();
}
else if (parent == QModelIndex()) {
RemoveItemsWithoutUndo(row, count);
}
else {
undo_stack_->push(new PlaylistUndoCommands::RemoveItems(this, row, count));
}
return true;
}
bool Playlist::removeRows(QList<int> &rows) {
if (rows.isEmpty()) {
return false;
}
// start from the end to be sure that indices won't 'move' during
// the removal process
qSort(rows.begin(), rows.end(), qGreater<int>());
QList<int> part;
while (!rows.isEmpty()) {
// we're splitting the input list into sequences of consecutive
// numbers
part.append(rows.takeFirst());
while (!rows.isEmpty() && rows.first() == part.last() - 1) {
part.append(rows.takeFirst());
}
// and now we're removing the current sequence
if (!removeRows(part.last(), part.size())) {
return false;
}
part.clear();
}
return true;
}
PlaylistItemList Playlist::RemoveItemsWithoutUndo(int row, int count) {
if (row < 0 || row >= items_.size() || row + count > items_.size()) {
return PlaylistItemList();
}
beginRemoveRows(QModelIndex(), row, row + count - 1);
// Remove items
PlaylistItemList ret;
for (int i = 0; i < count; ++i) {
PlaylistItemPtr item(items_.takeAt(row));
ret << item;
if (item->type() == "Collection") {
int id = item->Metadata().id();
if (id != -1) {
collection_items_by_id_.remove(id, item);
}
}
}
endRemoveRows();
QList<int>::iterator it = virtual_items_.begin();
int i = 0;
while (it != virtual_items_.end()) {
if (*it >= items_.count())
it = virtual_items_.erase(it);
else
++it;
++i;
}
// Reset current_virtual_index_
if (current_row() == -1)
if (row - 1 > 0 && row - 1 < items_.size()) {
current_virtual_index_ = virtual_items_.indexOf(row - 1);
}
else {
current_virtual_index_ = -1;
}
else
current_virtual_index_ = virtual_items_.indexOf(current_row());
Save();
return ret;
}
void Playlist::StopAfter(int row) {
QModelIndex old_stop_after = stop_after_;
if ((stop_after_.isValid() && stop_after_.row() == row) || row == -1)
stop_after_ = QModelIndex();
else
stop_after_ = index(row, 0);
if (old_stop_after.isValid())
emit dataChanged(old_stop_after, old_stop_after.sibling(old_stop_after.row(), ColumnCount - 1));
if (stop_after_.isValid())
emit dataChanged(stop_after_, stop_after_.sibling(stop_after_.row(), ColumnCount - 1));
}
void Playlist::SetStreamMetadata(const QUrl &url, const Song &song) {
//qLog(Debug) << "Setting metadata for" << url << "to" << song.artist() << song.title();
if (!current_item()) return;
if (current_item()->Url() != url) return;
// Don't update the metadata if it's only a minor change from before
if (current_item()->Metadata().artist() == song.artist() && current_item()->Metadata().title() == song.title()) return;
current_item()->SetTemporaryMetadata(song);
InformOfCurrentSongChange();
}
void Playlist::ClearStreamMetadata() {
if (!current_item()) return;
current_item()->ClearTemporaryMetadata();
emit dataChanged(index(current_item_index_.row(), 0), index(current_item_index_.row(), ColumnCount-1));
}
bool Playlist::stop_after_current() const {
PlaylistSequence::RepeatMode repeat_mode = playlist_sequence_->repeat_mode();
if (repeat_mode == PlaylistSequence::Repeat_OneByOne) {
return true;
}
return stop_after_.isValid() && current_item_index_.isValid() && stop_after_.row() == current_item_index_.row();
}
PlaylistItemPtr Playlist::current_item() const {
// QList[] runs in constant time, so no need to cache current_item
if (current_item_index_.isValid() && current_item_index_.row() <= items_.length())
return items_[current_item_index_.row()];
return PlaylistItemPtr();
}
PlaylistItem::Options Playlist::current_item_options() const {
if (!current_item()) return PlaylistItem::Default;
return current_item()->options();
}
Song Playlist::current_item_metadata() const {
if (!current_item()) return Song();
return current_item()->Metadata();
}
void Playlist::Clear() {
// If loading songs from session restore async, don't insert them
cancel_restore_ = true;
const int count = items_.count();
if (count > kUndoItemLimit) {
// Too big to keep in the undo stack. Also clear the stack because it
// might have been invalidated.
RemoveItemsWithoutUndo(0, count);
undo_stack_->clear();
} else {
undo_stack_->push(new PlaylistUndoCommands::RemoveItems(this, 0, count));
}
Save();
}
void Playlist::RemoveItemsNotInQueue() {
if (queue_->is_empty() && !current_item_index_.isValid()) {
RemoveItemsWithoutUndo(0, items_.count());
return;
}
int start = 0;
forever {
// Find a place to start - first row that isn't in the queue
forever {
if (start >= rowCount()) return;
if (!queue_->ContainsSourceRow(start) && current_row() != start) break;
start++;
}
// Figure out how many rows to remove - keep going until we find a row
// that is in the queue
int count = 1;
forever {
if (start + count >= rowCount()) break;
if (queue_->ContainsSourceRow(start + count) || current_row() == start + count) break;
count++;
}
RemoveItemsWithoutUndo(start, count);
start++;
}
}
void Playlist::ReloadItems(const QList<int> &rows) {
for (int row : rows) {
PlaylistItemPtr item = item_at(row);
item->Reload();
if (row == current_row()) {
InformOfCurrentSongChange();
}
else {
emit dataChanged(index(row, 0), index(row, ColumnCount - 1));
}
}
Save();
}
void Playlist::AddSongInsertVetoListener(SongInsertVetoListener *listener) {
veto_listeners_.append(listener);
connect(listener, SIGNAL(destroyed()), this, SLOT(SongInsertVetoListenerDestroyed()));
}
void Playlist::RemoveSongInsertVetoListener(SongInsertVetoListener *listener) {
disconnect(listener, SIGNAL(destroyed()), this, SLOT(SongInsertVetoListenerDestroyed()));
veto_listeners_.removeAll(listener);
}
void Playlist::SongInsertVetoListenerDestroyed() {
veto_listeners_.removeAll(qobject_cast<SongInsertVetoListener*>(sender()));
}
void Playlist::Shuffle() {
PlaylistItemList new_items(items_);
int begin = 0;
const int count = items_.count();
for (int i = begin; i < count; ++i) {
int new_pos = i + (rand() % (count - i));
std::swap(new_items[i], new_items[new_pos]);
}
undo_stack_->push(new PlaylistUndoCommands::ShuffleItems(this, new_items));
}
namespace {
bool AlbumShuffleComparator(const QMap<QString, int> &album_key_positions, const QMap<int, QString> &album_keys, int left, int right) {
const int left_pos = album_key_positions[album_keys[left]];
const int right_pos = album_key_positions[album_keys[right]];
if (left_pos == right_pos) return left < right;
return left_pos < right_pos;
}
}
void Playlist::ReshuffleIndices() {
if (!playlist_sequence_) {
return;
}
if (playlist_sequence_->shuffle_mode() == PlaylistSequence::Shuffle_Off) {
// No shuffling - sort the virtual item list normally.
std::sort(virtual_items_.begin(), virtual_items_.end());
if (current_row() != -1)
current_virtual_index_ = virtual_items_.indexOf(current_row());
return;
}
// If the user is already playing a song, advance the begin iterator to
// only shuffle items that haven't been played yet.
QList<int>::iterator begin = virtual_items_.begin();
QList<int>::iterator end = virtual_items_.end();
if (current_virtual_index_ != -1)
std::advance(begin, current_virtual_index_ + 1);
switch (playlist_sequence_->shuffle_mode()) {
case PlaylistSequence::Shuffle_Off:
// Handled above.
break;
case PlaylistSequence::Shuffle_All:
case PlaylistSequence::Shuffle_InsideAlbum:
std::random_shuffle(begin, end);
break;
case PlaylistSequence::Shuffle_Albums: {
QMap<int, QString> album_keys; // real index -> key
QSet<QString> album_key_set; // unique keys
// Find all the unique albums in the playlist
for (QList<int>::iterator it = begin; it != end; ++it) {
const int index = *it;
const QString key = items_[index]->Metadata().AlbumKey();
album_keys[index] = key;
album_key_set << key;
}
// Shuffle them
QStringList shuffled_album_keys = album_key_set.toList();
std::random_shuffle(shuffled_album_keys.begin(), shuffled_album_keys.end());
// If the user is currently playing a song, force its album to be first
// Or if the song was not playing but it was selected, force its album
// to be first.
if (current_virtual_index_ != -1 || current_row() != -1) {
const QString key = items_[current_row()]->Metadata().AlbumKey();
const int pos = shuffled_album_keys.indexOf(key);
if (pos >= 1) {
std::swap(shuffled_album_keys[0], shuffled_album_keys[pos]);
}
}
// Create album key -> position mapping for fast lookup
QMap<QString, int> album_key_positions;
for (int i = 0; i < shuffled_album_keys.count(); ++i) {
album_key_positions[shuffled_album_keys[i]] = i;
}
// Sort the virtual items
std::stable_sort(begin, end, std::bind(AlbumShuffleComparator, album_key_positions, album_keys, _1, _2));
break;
}
}
}
void Playlist::set_sequence(PlaylistSequence *v) {
playlist_sequence_ = v;
connect(v, SIGNAL(ShuffleModeChanged(PlaylistSequence::ShuffleMode)), SLOT(ShuffleModeChanged(PlaylistSequence::ShuffleMode)));
ShuffleModeChanged(v->shuffle_mode());
}
QSortFilterProxyModel *Playlist::proxy() const { return proxy_; }
SongList Playlist::GetAllSongs() const {
SongList ret;
for (PlaylistItemPtr item : items_) {
ret << item->Metadata();
}
return ret;
}
PlaylistItemList Playlist::GetAllItems() const { return items_; }
quint64 Playlist::GetTotalLength() const {
quint64 ret = 0;
for (PlaylistItemPtr item : items_) {
quint64 length = item->Metadata().length_nanosec();
if (length > 0) ret += length;
}
return ret;
}
PlaylistItemList Playlist::collection_items_by_id(int id) const {
return collection_items_by_id_.values(id);
}
void Playlist::TracksAboutToBeDequeued(const QModelIndex&, int begin, int end) {
for (int i = begin; i <= end; ++i) {
temp_dequeue_change_indexes_ << queue_->mapToSource(queue_->index(i, Column_Title));
}
}
void Playlist::TracksDequeued() {
for (const QModelIndex &index : temp_dequeue_change_indexes_) {
emit dataChanged(index, index);
}
temp_dequeue_change_indexes_.clear();
emit QueueChanged();
}
void Playlist::TracksEnqueued(const QModelIndex&, int begin, int end) {
const QModelIndex &b = queue_->mapToSource(queue_->index(begin, Column_Title));
const QModelIndex &e = queue_->mapToSource(queue_->index(end, Column_Title));
emit dataChanged(b, e);
}
void Playlist::QueueLayoutChanged() {
for (int i = 0; i < queue_->rowCount(); ++i) {
const QModelIndex &index = queue_->mapToSource(queue_->index(i, Column_Title));
emit dataChanged(index, index);
}
}
void Playlist::ItemChanged(PlaylistItemPtr item) {
for (int row = 0; row < items_.count(); ++row) {
if (items_[row] == item) {
emit dataChanged(index(row, 0), index(row, ColumnCount - 1));
return;
}
}
}
void Playlist::InformOfCurrentSongChange() {
emit dataChanged(index(current_item_index_.row(), 0), index(current_item_index_.row(), ColumnCount - 1));
// if the song is invalid, we won't play it - there's no point in
// informing anybody about the change
const Song metadata(current_item_metadata());
if (metadata.is_valid()) {
emit CurrentSongChanged(metadata);
}
}
void Playlist::InvalidateDeletedSongs() {
QList<int> invalidated_rows;
for (int row = 0; row < items_.count(); ++row) {
PlaylistItemPtr item = items_[row];
Song song = item->Metadata();
bool exists = QFile::exists(song.url().toLocalFile());
if (!exists && !item->HasForegroundColor(kInvalidSongPriority)) {
// gray out the song if it's not there
item->SetForegroundColor(kInvalidSongPriority, kInvalidSongColor);
invalidated_rows.append(row);
}
else if (exists && item->HasForegroundColor(kInvalidSongPriority)) {
item->RemoveForegroundColor(kInvalidSongPriority);
invalidated_rows.append(row);
}
}
ReloadItems(invalidated_rows);
}
void Playlist::RemoveDeletedSongs() {
QList<int> rows_to_remove;
for (int row = 0; row < items_.count(); ++row) {
PlaylistItemPtr item = items_[row];
Song song = item->Metadata();
if (!QFile::exists(song.url().toLocalFile())) {
rows_to_remove.append(row);
}
}
removeRows(rows_to_remove);
}
struct SongSimilarHash {
long operator() (const Song &song) const {
return HashSimilar(song);
}
};
struct SongSimilarEqual {
long operator()(const Song &song1, const Song &song2) const {
return song1.IsSimilar(song2);
}
};
void Playlist::RemoveDuplicateSongs() {
QList<int> rows_to_remove;
unordered_map<Song, int, SongSimilarHash, SongSimilarEqual> unique_songs;
for (int row = 0; row < items_.count(); ++row) {
PlaylistItemPtr item = items_[row];
const Song &song = item->Metadata();
bool found_duplicate = false;
auto uniq_song_it = unique_songs.find(song);
if (uniq_song_it != unique_songs.end()) {
const Song &uniq_song = uniq_song_it->first;
if (song.bitrate() > uniq_song.bitrate()) {
rows_to_remove.append(unique_songs[uniq_song]);
unique_songs.erase(uniq_song);
unique_songs.insert(std::make_pair(song, row));
}
else {
rows_to_remove.append(row);
}
found_duplicate = true;
}
if (!found_duplicate) {
unique_songs.insert(std::make_pair(song, row));
}
}
removeRows(rows_to_remove);
}
void Playlist::RemoveUnavailableSongs() {
QList<int> rows_to_remove;
for (int row = 0; row < items_.count(); ++row) {
PlaylistItemPtr item = items_[row];
const Song &song = item->Metadata();
// check only local files
if (song.url().isLocalFile() && !QFile::exists(song.url().toLocalFile())) {
rows_to_remove.append(row);
}
}
removeRows(rows_to_remove);
}
bool Playlist::ApplyValidityOnCurrentSong(const QUrl &url, bool valid) {
PlaylistItemPtr current = current_item();
if (current) {
Song current_song = current->Metadata();
// if validity has changed, reload the item
if(!current_song.is_cdda() && current_song.url() == url && current_song.is_valid() != QFile::exists(current_song.url().toLocalFile())) {
ReloadItems(QList<int>() << current_row());
}
// gray out the song if it's now broken; otherwise undo the gray color
if (valid) {
current->RemoveForegroundColor(kInvalidSongPriority);
} else {
current->SetForegroundColor(kInvalidSongPriority, kInvalidSongColor);
}
}
return static_cast<bool>(current);
}
void Playlist::SetColumnAlignment(const ColumnAlignmentMap &alignment) {
column_alignments_ = alignment;
}
void Playlist::SkipTracks(const QModelIndexList &source_indexes) {
for (const QModelIndex &source_index : source_indexes) {
PlaylistItemPtr track_to_skip = item_at(source_index.row());
track_to_skip->SetShouldSkip(!((track_to_skip)->GetShouldSkip()));
emit dataChanged(source_index, source_index);
}
}