strawberry-audio-player-win.../src/covermanager/currentartloader.cpp

91 lines
2.8 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 <stdbool.h>
#include <QtGlobal>
#include <QObject>
#include <QDir>
#include <QString>
#include <QStringBuilder>
#include <QImage>
#include <QTemporaryFile>
#include "core/application.h"
#include "playlist/playlistmanager.h"
#include "albumcoverloader.h"
#include "currentartloader.h"
CurrentArtLoader::CurrentArtLoader(Application *app, QObject *parent)
: QObject(parent),
app_(app),
temp_file_pattern_(QDir::tempPath() + "/strawberry-art-XXXXXX.jpg"),
id_(0)
{
options_.scale_output_image_ = false;
options_.pad_output_image_ = false;
options_.default_output_image_ = QImage(":/pictures/cdcase.png");
connect(app_->album_cover_loader(), SIGNAL(ImageLoaded(quint64, QImage)), SLOT(TempArtLoaded(quint64, QImage)));
connect(app_->playlist_manager(), SIGNAL(CurrentSongChanged(Song)), SLOT(LoadArt(Song)));
}
CurrentArtLoader::~CurrentArtLoader() {}
void CurrentArtLoader::LoadArt(const Song &song) {
last_song_ = song;
id_ = app_->album_cover_loader()->LoadImageAsync(options_, last_song_);
}
void CurrentArtLoader::TempArtLoaded(quint64 id, const QImage &image) {
if (id != id_) return;
id_ = 0;
QString uri;
QString thumbnail_uri;
QImage thumbnail;
if (!image.isNull()) {
temp_art_.reset(new QTemporaryFile(temp_file_pattern_));
temp_art_->setAutoRemove(true);
temp_art_->open();
image.save(temp_art_->fileName(), "JPEG");
// Scale the image down to make a thumbnail. It's a bit crap doing it here since it's the GUI thread, but the alternative is hard.
temp_art_thumbnail_.reset(new QTemporaryFile(temp_file_pattern_));
temp_art_thumbnail_->open();
temp_art_thumbnail_->setAutoRemove(true);
thumbnail = image.scaledToHeight(120, Qt::SmoothTransformation);
thumbnail.save(temp_art_thumbnail_->fileName(), "JPEG");
uri = "file://" + temp_art_->fileName();
thumbnail_uri = "file://" + temp_art_thumbnail_->fileName();
}
emit ArtLoaded(last_song_, uri, image);
emit ThumbnailLoaded(last_song_, thumbnail_uri, thumbnail);
}