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Clementine-audio-player-Mac.../src/playlist/playlist.cpp

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "playlist.h"
#include "playlistbackend.h"
#include "playlistfilter.h"
#include "playlistitemmimedata.h"
#include "playlistundocommands.h"
#include "queue.h"
#include "songloaderinserter.h"
#include "songmimedata.h"
#include "songplaylistitem.h"
#include "core/modelfuturewatcher.h"
#include "library/library.h"
#include "library/librarybackend.h"
#include "library/librarymodel.h"
#include "library/libraryplaylistitem.h"
#include "radio/jamendoplaylistitem.h"
#include "radio/jamendoservice.h"
#include "radio/magnatuneplaylistitem.h"
#include "radio/magnatuneservice.h"
#include "radio/radiomimedata.h"
#include "radio/radiomodel.h"
#include "radio/radioplaylistitem.h"
#include "radio/savedradio.h"
#include "smartplaylists/generator.h"
#include "smartplaylists/generatorinserter.h"
#include "smartplaylists/generatormimedata.h"
#include <QApplication>
#include <QBuffer>
#include <QDirIterator>
#include <QFileInfo>
#include <QMimeData>
#include <QMutableListIterator>
#include <QSortFilterProxyModel>
#include <QUndoStack>
#include <QtConcurrentRun>
#include <QtDebug>
#include <boost/bind.hpp>
#include <algorithm>
using smart_playlists::Generator;
using smart_playlists::GeneratorInserter;
using smart_playlists::GeneratorPtr;
using boost::shared_ptr;
const char* Playlist::kRowsMimetype = "application/x-clementine-playlist-rows";
const char* Playlist::kPlayNowMimetype = "application/x-clementine-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 int Playlist::kUndoStackSize = 20;
const int Playlist::kUndoItemLimit = 500;
Playlist::Playlist(PlaylistBackend* backend,
TaskManager* task_manager,
LibraryBackend* library,
int id,
QObject *parent)
: QAbstractListModel(parent),
is_loading_(false),
proxy_(new PlaylistFilter(this)),
queue_(new Queue(this)),
backend_(backend),
task_manager_(task_manager),
library_(library),
id_(id),
current_is_paused_(false),
current_virtual_index_(-1),
is_shuffled_(false),
scrobble_point_(-1),
lastfm_status_(LastFM_New),
have_incremented_playcount_(false),
playlist_sequence_(NULL),
ignore_sorting_(false),
undo_stack_(new QUndoStack(this))
{
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_[Column_Length]
= column_alignments_[Column_Track]
= column_alignments_[Column_Disc]
= column_alignments_[Column_Year]
= column_alignments_[Column_BPM]
= column_alignments_[Column_Bitrate]
= column_alignments_[Column_Samplerate]
= column_alignments_[Column_Filesize]
= column_alignments_[Column_PlayCount]
= column_alignments_[Column_SkipCount]
= (Qt::AlignRight | Qt::AlignVCenter);
column_alignments_[Column_Score] = (Qt::AlignCenter);
}
Playlist::~Playlist() {
items_.clear();
library_items_by_id_.clear();
}
template<typename T>
void Playlist::InsertSongItems(const SongList& songs, int pos, bool play_now, bool enqueue) {
PlaylistItemList items;
foreach (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();
QString name = column_name((Playlist::Column)section);
if(name.size())
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_Track:
case Column_Disc:
case Column_Year:
case Column_Genre:
case Column_Score:
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_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_Score:
song.set_score(value.toInt());
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 Role_CanSetRating:
return index.column() == Column_Rating &&
items_[index.row()]->IsLocalLibraryItem() &&
items_[index.row()]->Metadata().id() != -1;
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_Genre: return song.genre();
case Column_AlbumArtist: return song.albumartist();
case Column_Composer: return song.composer();
case Column_Rating: return song.rating();
case Column_PlayCount: return song.playcount();
case Column_SkipCount: return song.skipcount();
case Column_LastPlayed: return song.lastplayed();
case Column_Score: return song.score();
case Column_BPM: return song.bpm();
case Column_Bitrate: return song.bitrate();
case Column_Samplerate: return song.samplerate();
case Column_Filename: return song.filename();
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 Qt::TextAlignmentRole:
return QVariant(column_alignments_.value(index.column(), (Qt::AlignLeft | Qt::AlignVCenter)));
case Qt::ForegroundRole:
if (items_[index.row()]->HasCurrentForegroundColor()) {
return QBrush(items_[index.row()]->GetCurrentForegroundColor());
}
return QVariant();
case Qt::BackgroundRole:
if (items_[index.row()]->HasCurrentBackgroundColor()) {
return QBrush(items_[index.row()]->GetCurrentBackgroundColor());
}
return QVariant();
default:
return QVariant();
}
}
bool Playlist::setData(const QModelIndex &index, const QVariant &value, int) {
int row = index.row();
Song song = item_at(row)->Metadata();
if (index.data() == value)
return false;
if(!set_column_value(song, (Column)index.column(), value))
return false;
if((Column)index.column() == Column_Score) {
// The score is only saved in the database, not the file
library_->AddOrUpdateSongs(SongList() << song);
emit EditingFinished(index);
} else {
QFuture<bool> future = song.BackgroundSave();
ModelFutureWatcher<bool>* watcher = new ModelFutureWatcher<bool>(index, this);
watcher->setFuture(future);
connect(watcher, SIGNAL(finished()), SLOT(SongSaveComplete()));
}
return true;
}
void Playlist::SongSaveComplete() {
ModelFutureWatcher<bool>* watcher = static_cast<ModelFutureWatcher<bool>*>(sender());
watcher->deleteLater();
const QPersistentModelIndex& index = watcher->index();
if (index.isValid()) {
QFuture<void> future = item_at(index.row())->BackgroundReload();
ModelFutureWatcher<void>* watcher = new ModelFutureWatcher<void>(index, this);
watcher->setFuture(future);
connect(watcher, SIGNAL(finished()), SLOT(ItemReloadComplete()));
}
}
void Playlist::ItemReloadComplete() {
ModelFutureWatcher<void>* watcher = static_cast<ModelFutureWatcher<void>*>(sender());
watcher->deleteLater();
const QPersistentModelIndex& index = watcher->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) 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_Album;
// This one's easy - if we have to repeat the current track then just return i
if (repeat_mode == PlaylistSequence::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
while (i < virtual_items_.count() && !FilterContainsVirtualIndex(i))
++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) {
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) 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_Album;
// This one's easy - if we have to repeat the current track then just return i
if (repeat_mode == PlaylistSequence::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))
--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) {
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() const {
// Did we want to stop after this track?
if (stop_after_.isValid() && current_row() == stop_after_.row())
return -1;
// Any queued items take priority
if (!queue_->is_empty()) {
return queue_->PeekNext();
}
int next_virtual_index = NextVirtualIndex(current_virtual_index_);
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:
return -1;
case PlaylistSequence::Repeat_Track:
next_virtual_index = current_virtual_index_;
break;
default:
next_virtual_index = NextVirtualIndex(-1);
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() const {
int prev_virtual_index = PreviousVirtualIndex(current_virtual_index_);
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());
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) {
QModelIndex old_current = current_item_index_;
ClearStreamMetadata();
current_item_index_ = QPersistentModelIndex(index(i, 0, QModelIndex()));
if (current_item_index_.row() == queue_->PeekNext()) {
queue_->TakeNext();
}
if (current_item_index_ == old_current)
return;
if (current_item_index_.isValid()) {
last_played_item_index_ = current_item_index_;
current_item_ = items_[current_item_index_.row()];
Save();
} else {
current_item_.reset();
}
if (old_current.isValid()) {
if (dynamic_playlist_) {
items_[old_current.row()]->SetForegroundColor(kDynamicHistoryPriority,
kDynamicHistoryColor);
}
emit dataChanged(old_current, old_current.sibling(old_current.row(), ColumnCount-1));
}
if (current_item_index_.isValid()) {
InformOfCurrentSongChange(current_item_index_,
current_item_index_.sibling(current_item_index_.row(), ColumnCount-1),
current_item_metadata());
}
// 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 (dynamic_playlist_ && current_item_index_.isValid() && old_current.isValid()) {
using smart_playlists::Generator;
// Add more dynamic playlist items
const int count = current_item_index_.row() + Generator::kDynamicFuture - items_.count();
if (count > 0) {
GeneratorInserter* inserter = new GeneratorInserter(task_manager_, library_, this);
connect(inserter, SIGNAL(Error(QString)), SIGNAL(LoadTracksError(QString)));
connect(inserter, SIGNAL(PlayRequested(QModelIndex)), SIGNAL(PlayRequested(QModelIndex)));
inserter->Load(this, -1, false, false, dynamic_playlist_, count);
}
// Remove the first item
if (current_item_index_.row() > Generator::kDynamicHistory) {
RemoveItemsWithoutUndo(0, 1);
}
}
UpdateScrobblePoint();
}
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
<< LibraryModel::kSmartPlaylistsMimeType;
}
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;
using smart_playlists::GeneratorMimeData;
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 library
// 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() == Library::kSongsTable)
InsertSongItems<LibraryPlaylistItem>(song_data->songs, row, play_now, enqueue_now);
else if (song_data->backend && song_data->backend->songs_table() == MagnatuneService::kSongsTable)
InsertSongItems<MagnatunePlaylistItem>(song_data->songs, row, play_now, enqueue_now);
else if (song_data->backend && song_data->backend->songs_table() == JamendoService::kSongsTable)
InsertSongItems<JamendoPlaylistItem>(song_data->songs, row, play_now, enqueue_now);
else
InsertSongItems<SongPlaylistItem>(song_data->songs, row, play_now, enqueue_now);
} else if (const RadioMimeData* radio_data = qobject_cast<const RadioMimeData*>(data)) {
// Dragged from the Radio pane
InsertRadioStations(radio_data->model, radio_data->indexes,
row, play_now, enqueue_now);
} else if (const GeneratorMimeData* generator_data = qobject_cast<const GeneratorMimeData*>(data)) {
InsertSmartPlaylist(generator_data->generator_, 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 = NULL;
QDataStream stream(data->data(kRowsMimetype));
stream >> source_playlist;
stream >> source_rows;
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 {
// Drag from a different playlist
PlaylistItemList items;
foreach (int row, source_rows)
items << source_playlist->item_at(row);
if (items.count() > kUndoItemLimit) {
// Too big to keep in the undo stack
InsertItemsWithoutUndo(items, row, false);
} 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) {
foreach (int row, source_rows) {
source_playlist->undo_stack()->push(
new PlaylistUndoCommands::RemoveItems(source_playlist, row, 1));
}
}
}
} 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_, library_);
connect(inserter, SIGNAL(Error(QString)), SIGNAL(LoadTracksError(QString)));
inserter->Load(this, pos, play_now, enqueue, urls);
}
void Playlist::InsertSmartPlaylist(GeneratorPtr generator, int pos, bool play_now, bool enqueue) {
// Hack: If the generator hasn't got a library set then use the main one
if (!generator->library()) {
generator->set_library(library_);
}
GeneratorInserter* inserter = new GeneratorInserter(task_manager_, library_, this);
connect(inserter, SIGNAL(Error(QString)), SIGNAL(LoadTracksError(QString)));
inserter->Load(this, pos, play_now, enqueue, generator);
if (generator->is_dynamic()) {
TurnOnDynamicPlaylist(generator);
}
}
void Playlist::TurnOnDynamicPlaylist(GeneratorPtr gen) {
dynamic_playlist_ = gen;
playlist_sequence_->SetUsingDynamicPlaylist(true);
ShuffleModeChanged(PlaylistSequence::Shuffle_Off);
emit DynamicModeChanged(true);
Save();
}
void Playlist::MoveItemsWithoutUndo(const QList<int> &source_rows, int pos) {
layoutAboutToBeChanged();
PlaylistItemList moved_items;
// Take the items out of the list first, keeping track of whether the
// insertion point changes
int offset = 0;
foreach (int source_row, source_rows) {
moved_items << items_.takeAt(source_row-offset);
if (pos != -1 && pos >= source_row)
pos --;
offset++;
}
// Put the items back in
const int start = pos == -1 ? items_.count() : pos;
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
foreach (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;
foreach (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;
if (start == -1)
start = items_.count() - dest_rows.count();
// Take the items out of the list first, keeping track of whether the
// insertion point changes
for (int i=start ; i<start + dest_rows.count() ; ++i)
moved_items << items_.takeAt(start);
// Put the items back in
int offset = 0;
foreach (int dest_row, dest_rows) {
items_.insert(dest_row, moved_items[offset]);
offset ++;
}
// Update persistent indexes
foreach (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();
foreach (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;
foreach(PlaylistItemPtr item, items) {
songs << item->Metadata();
}
QList<Song> vetoed;
foreach(SongInsertVetoListener* listener, veto_listeners_) {
foreach(const Song& song, listener->AboutToInsertSongs(GetAllSongs(), songs)) {
vetoed.append(song);
}
}
if(!vetoed.isEmpty()) {
QMutableListIterator<PlaylistItemPtr> it(items);
while (it.hasNext()) {
PlaylistItemPtr item = it.next();
const Song& current = item->Metadata();
if(vetoed.contains(current)) {
vetoed.removeOne(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
InsertItemsWithoutUndo(items, pos, enqueue);
} 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() == "Library") {
int id = item->Metadata().id();
if (id != -1) {
library_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::InsertLibraryItems(const SongList& songs, int pos, bool play_now, bool enqueue) {
InsertSongItems<LibraryPlaylistItem>(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::InsertSongsOrLibraryItems(const SongList& songs, int pos, bool play_now, bool enqueue) {
PlaylistItemList items;
foreach (const Song& song, songs) {
if (song.id() == -1)
items << PlaylistItemPtr(new SongPlaylistItem(song));
else
items << PlaylistItemPtr(new LibraryPlaylistItem(song));
}
InsertItems(items, pos, play_now, enqueue);
}
void Playlist::InsertRadioStations(const RadioModel* model,
const QModelIndexList& items,
int pos, bool play_now, bool enqueue) {
PlaylistItemList playlist_items;
QList<QUrl> song_urls;
foreach (const QModelIndex& item, items) {
switch (item.data(RadioModel::Role_PlayBehaviour).toInt()) {
case RadioModel::PlayBehaviour_SingleItem:
playlist_items << shared_ptr<PlaylistItem>(new RadioPlaylistItem(
model->ServiceForIndex(item),
item.data(RadioModel::Role_Url).toUrl(),
item.data(RadioModel::Role_Title).toString(),
item.data(RadioModel::Role_Artist).toString()));
break;
case RadioModel::PlayBehaviour_UseSongLoader:
song_urls << item.data(RadioModel::Role_Url).toUrl();
break;
}
}
if (!song_urls.isEmpty()) {
InsertUrls(song_urls, pos, play_now, enqueue);
play_now = false;
}
InsertItems(playlist_items, pos, play_now, enqueue);
}
void Playlist::UpdateItems(const SongList& songs) {
qDebug() << "Updating playlist with new tracks' info";
foreach (const Song& song, songs) {
// Update current items list
for (int i=0; i<items_.size(); i++) {
PlaylistItemPtr item = items_[i];
if (item->Metadata().filename() == song.filename()) {
PlaylistItemPtr new_item;
if (song.id() == -1) {
new_item = PlaylistItemPtr(new SongPlaylistItem(song));
} else {
new_item = PlaylistItemPtr(new LibraryPlaylistItem(song));
library_items_by_id_.insertMulti(song.id(), new_item);
}
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;
}
}
break;
}
}
}
}
QMimeData* Playlist::mimeData(const QModelIndexList& indexes) const {
QMimeData* data = new QMimeData;
QList<QUrl> urls;
QList<int> rows;
foreach (const QModelIndex& index, indexes) {
if (index.column() != 0)
continue;
urls << items_[index.row()]->Url();
rows << index.row();
}
QBuffer buf;
buf.open(QIODevice::WriteOnly);
QDataStream stream(&buf);
stream << this;
stream << rows;
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_Genre: strcmp(genre);
case Column_AlbumArtist: strcmp(albumartist);
case Column_Composer: strcmp(composer);
case Column_Rating: cmp(rating);
case Column_PlayCount: cmp(playcount);
case Column_SkipCount: cmp(skipcount);
case Column_LastPlayed: cmp(lastplayed);
case Column_Score: cmp(score);
case Column_BPM: cmp(bpm);
case Column_Bitrate: cmp(bitrate);
case Column_Samplerate: cmp(samplerate);
case Column_Filename: cmp(filename);
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);
}
#undef cmp
#undef strcmp
return false;
}
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_Length: return tr("Length");
case Column_Track: return tr("Track");
case Column_Disc: return tr("Disc");
case Column_Year: return tr("Year");
case Column_Genre: return tr("Genre");
case Column_AlbumArtist: return tr("Album artist");
case Column_Composer: return tr("Composer");
case Column_Rating: return tr("Rating");
case Column_PlayCount: return tr("Play count");
case Column_SkipCount: return tr("Skip count");
case Column_LastPlayed: return tr("Last played");
case Column_Score: return tr("Score");
case Column_BPM: return tr("BPM");
case Column_Bitrate: return tr("Bit rate");
case Column_Samplerate: return tr("Sample 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");
default: return QString();
}
return "";
}
void Playlist::sort(int column, Qt::SortOrder order) {
if (ignore_sorting_)
return;
layoutAboutToBeChanged();
// This is a slow and nasty way to keep the persistent indices
QMap<int, shared_ptr<PlaylistItem> > old_persistent_mappings;
foreach (const QModelIndex& index, persistentIndexList()) {
old_persistent_mappings[index.row()] = items_[index.row()];
}
qStableSort(items_.begin(), items_.end(),
boost::bind(&Playlist::CompareItems, column, order, _1, _2));
QMapIterator<int, shared_ptr<PlaylistItem> > it(old_persistent_mappings);
while (it.hasNext()) {
it.next();
for (int col=0 ; col<ColumnCount ; ++col) {
int new_row = items_.indexOf(it.value());
changePersistentIndex(index(it.key(), col, QModelIndex()),
index(new_row, col, QModelIndex()));
}
}
layoutChanged();
// TODO
undo_stack_->clear();
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(), dynamic_playlist_);
}
namespace {
typedef QFutureWatcher<shared_ptr<PlaylistItem> > PlaylistItemFutureWatcher;
}
void Playlist::Restore() {
if (!backend_)
return;
items_.clear();
virtual_items_.clear();
library_items_by_id_.clear();
PlaylistBackend::PlaylistItemFuture future = backend_->GetPlaylistItems(id_);
PlaylistItemFutureWatcher* watcher = new PlaylistItemFutureWatcher(this);
watcher->setFuture(future);
connect(watcher, SIGNAL(finished()), SLOT(ItemsLoaded()));
}
void Playlist::ItemsLoaded() {
PlaylistItemFutureWatcher* watcher = static_cast<PlaylistItemFutureWatcher*>(sender());
watcher->deleteLater();
PlaylistItemList items = watcher->future().results();
// backend returns empty elements for library 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->IsLocalLibraryItem() && item->Metadata().filename().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);
if (!p.dynamic_type.isEmpty()) {
GeneratorPtr gen = Generator::Create(p.dynamic_type);
if (gen) {
// Hack: can't think of a better way to get the right backend
LibraryBackend* backend = NULL;
if (p.dynamic_backend == library_->songs_table())
backend = library_;
else if (p.dynamic_backend == MagnatuneService::kSongsTable)
backend = RadioModel::Service<MagnatuneService>()->library_backend();
else if (p.dynamic_backend == JamendoService::kSongsTable)
backend = RadioModel::Service<JamendoService>()->library_backend();
if (backend) {
gen->set_library(backend);
gen->Load(p.dynamic_data);
TurnOnDynamicPlaylist(gen);
}
}
}
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
RemoveItemsWithoutUndo(row, count);
} else {
undo_stack_->push(new PlaylistUndoCommands::RemoveItems(this, row, count));
}
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() == "Library") {
int id = item->Metadata().id();
if (id != -1) {
library_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)
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) {
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);
UpdateScrobblePoint();
InformOfCurrentSongChange(index(current_item_index_.row(), 0),
index(current_item_index_.row(), ColumnCount-1),
song);
}
void Playlist::ClearStreamMetadata() {
if (!current_item_)
return;
current_item_->ClearTemporaryMetadata();
UpdateScrobblePoint();
emit dataChanged(index(current_item_index_.row(), 0), index(current_item_index_.row(), ColumnCount-1));
}
bool Playlist::stop_after_current() const {
return stop_after_.isValid() && current_item_index_.isValid() &&
stop_after_.row() == current_item_index_.row();
}
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::UpdateScrobblePoint() {
const qint64 length = current_item_metadata().length_nanosec();
if (length == 0) {
scrobble_point_ = 240ll * kNsecPerSec; // 4 minutes
} else {
scrobble_point_ = qBound(31ll * kNsecPerSec,
length/2,
240ll * kNsecPerSec);
}
set_lastfm_status(LastFM_New);
have_incremented_playcount_ = false;
}
void Playlist::Clear() {
const int count = items_.count();
if (count > kUndoItemLimit) {
// Too big to keep in the undo stack
RemoveItemsWithoutUndo(0, count);
} else {
undo_stack_->push(new PlaylistUndoCommands::RemoveItems(this, 0, count));
}
TurnOffDynamicPlaylist();
Save();
}
void Playlist::TurnOffDynamicPlaylist() {
dynamic_playlist_.reset();
if (playlist_sequence_) {
playlist_sequence_->SetUsingDynamicPlaylist(false);
ShuffleModeChanged(playlist_sequence_->shuffle_mode());
}
emit DynamicModeChanged(false);
Save();
}
void Playlist::RepopulateDynamicPlaylist() {
if (!dynamic_playlist_)
return;
RemoveItemsNotInQueue();
InsertSmartPlaylist(dynamic_playlist_);
}
void Playlist::RemoveItemsNotInQueue() {
if (queue_->is_empty()) {
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))
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))
break;
count ++;
}
RemoveItemsWithoutUndo(start, count);
start ++;
}
}
void Playlist::ReloadItems(const QList<int>& rows) {
foreach (int row, rows) {
PlaylistItemPtr item = item_at(row);
item->Reload();
InformOfCurrentSongChange(index(row, 0), index(row, ColumnCount-1),
item->Metadata());
}
}
void Playlist::RateSong(const QModelIndex& index, double rating) {
int row = index.row();
if(has_item_at(row)) {
PlaylistItemPtr item = item_at(row);
if (item && item->IsLocalLibraryItem() && item->Metadata().id() != -1) {
library_->UpdateSongRatingAsync(item->Metadata().id(), rating);
}
}
}
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() {
// qobject_cast returns NULL here for Python SIP listeners.
veto_listeners_.removeAll(static_cast<SongInsertVetoListener*>(sender()));
}
void Playlist::Shuffle() {
layoutAboutToBeChanged();
const int count = items_.count();
for (int i=0 ; i < count; ++i) {
int new_pos = i + (rand() % (count - i));
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()));
}
}
current_virtual_index_ = virtual_items_.indexOf(current_row());
layoutChanged();
// TODO
undo_stack_->clear();
emit PlaylistChanged();
Save();
}
void Playlist::ReshuffleIndices() {
if (!is_shuffled_) {
std::sort(virtual_items_.begin(), virtual_items_.end());
if (current_row() != -1)
current_virtual_index_ = virtual_items_.indexOf(current_row());
} else {
QList<int>::iterator begin = virtual_items_.begin();
if (current_virtual_index_ != -1)
std::advance(begin, current_virtual_index_ + 1);
std::random_shuffle(begin, virtual_items_.end());
}
}
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;
foreach (PlaylistItemPtr item, items_) {
ret << item->Metadata();
}
return ret;
}
PlaylistItemList Playlist::GetAllItems() const {
return items_;
}
quint64 Playlist::GetTotalLength() const {
quint64 ret = 0;
foreach (PlaylistItemPtr item, items_) {
quint64 length = item->Metadata().length_nanosec();
if (length > 0)
ret += length;
}
return ret;
}
PlaylistItemList Playlist::library_items_by_id(int id) const {
return library_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() {
foreach (const QModelIndex& index, temp_dequeue_change_indexes_) {
emit dataChanged(index, index);
}
temp_dequeue_change_indexes_.clear();
}
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);
}
}
QDataStream& operator <<(QDataStream& s, const Playlist* p) {
s.writeRawData(reinterpret_cast<char*>(&p), sizeof(p));
return s;
}
QDataStream& operator >>(QDataStream& s, Playlist*& p) {
s.readRawData(reinterpret_cast<char*>(&p), sizeof(p));
return s;
}
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::set_column_alignments(const ColumnAlignmentMap& column_alignments) {
column_alignments_ = column_alignments;
}
void Playlist::set_column_align_left(int column) {
column_alignments_[column] = (Qt::AlignLeft | Qt::AlignVCenter);
}
void Playlist::set_column_align_center(int column) {
column_alignments_[column] = Qt::AlignCenter;
}
void Playlist::set_column_align_right(int column) {
column_alignments_[column] = (Qt::AlignRight | Qt::AlignVCenter);
}
void Playlist::InformOfCurrentSongChange(const QModelIndex& top_left, const QModelIndex& bottom_right,
const Song& metadata) {
emit dataChanged(top_left, bottom_right);
// if the song is invalid, we won't play it - there's no point in
// informing anybody about the change
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();
if(!song.is_stream()) {
bool exists = QFile::exists(song.filename());
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);
}
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_stream() &&
current_song.filename() == url.toLocalFile() &&
current_song.is_valid() != QFile::exists(current_song.filename())) {
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 current;
}
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