106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
/*
|
|
* 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 <QIODevice>
|
|
#include <QDataStream>
|
|
#include <QByteArray>
|
|
#include <QString>
|
|
|
|
#include "playlistquerygenerator.h"
|
|
#include "collection/collectionbackend.h"
|
|
|
|
PlaylistQueryGenerator::PlaylistQueryGenerator(QObject *parent) : PlaylistGenerator(parent), dynamic_(false), current_pos_(0) {}
|
|
|
|
PlaylistQueryGenerator::PlaylistQueryGenerator(const QString &name, const SmartPlaylistSearch &search, const bool dynamic, QObject *parent)
|
|
: PlaylistGenerator(parent),
|
|
search_(search),
|
|
dynamic_(dynamic),
|
|
current_pos_(0) {
|
|
|
|
set_name(name);
|
|
|
|
}
|
|
|
|
void PlaylistQueryGenerator::Load(const SmartPlaylistSearch &search) {
|
|
|
|
search_ = search;
|
|
dynamic_ = false;
|
|
current_pos_ = 0;
|
|
|
|
}
|
|
|
|
void PlaylistQueryGenerator::Load(const QByteArray &data) {
|
|
|
|
QDataStream s(data);
|
|
s >> search_;
|
|
s >> dynamic_;
|
|
|
|
}
|
|
|
|
QByteArray PlaylistQueryGenerator::Save() const {
|
|
|
|
QByteArray ret;
|
|
QDataStream s(&ret, QIODevice::WriteOnly);
|
|
s << search_;
|
|
s << dynamic_;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
PlaylistItemPtrList PlaylistQueryGenerator::Generate() {
|
|
|
|
previous_ids_.clear();
|
|
current_pos_ = 0;
|
|
return GenerateMore(0);
|
|
|
|
}
|
|
|
|
PlaylistItemPtrList PlaylistQueryGenerator::GenerateMore(const int count) {
|
|
|
|
SmartPlaylistSearch search_copy = search_;
|
|
search_copy.id_not_in_ = previous_ids_;
|
|
if (count > 0) {
|
|
search_copy.limit_ = count;
|
|
}
|
|
|
|
if (search_copy.sort_type_ != SmartPlaylistSearch::SortType::Random) {
|
|
search_copy.first_item_ = current_pos_;
|
|
current_pos_ += search_copy.limit_;
|
|
}
|
|
|
|
SongList songs = backend_->SmartPlaylistsFindSongs(search_copy);
|
|
PlaylistItemPtrList items;
|
|
items.reserve(songs.count());
|
|
for (const Song &song : songs) {
|
|
items << PlaylistItem::NewFromSong(song);
|
|
previous_ids_ << song.id();
|
|
|
|
if (previous_ids_.count() > GetDynamicFuture() + GetDynamicHistory()) {
|
|
previous_ids_.removeFirst();
|
|
}
|
|
}
|
|
|
|
return items;
|
|
|
|
}
|