Clementine-audio-player-Mac.../src/covers/albumcoverexporter.cpp

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/* This file is part of Clementine.
2014-12-26 13:34:53 +01:00
Copyright 2013, Andreas <asfa194@gmail.com>
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
Copyright 2014, John Maguire <john.maguire@gmail.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 "albumcoverexporter.h"
#include <QFile>
#include <QThreadPool>
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#include "coverexportrunnable.h"
#include "core/song.h"
const int AlbumCoverExporter::kMaxConcurrentRequests = 3;
AlbumCoverExporter::AlbumCoverExporter(QObject* parent)
: QObject(parent),
thread_pool_(new QThreadPool(this)),
exported_(0),
skipped_(0),
all_(0) {
thread_pool_->setMaxThreadCount(kMaxConcurrentRequests);
}
void AlbumCoverExporter::SetDialogResult(
const AlbumCoverExport::DialogResult& dialog_result) {
dialog_result_ = dialog_result;
}
void AlbumCoverExporter::AddExportRequest(Song song) {
requests_.append(new CoverExportRunnable(dialog_result_, song));
all_ = requests_.count();
}
void AlbumCoverExporter::Cancel() { requests_.clear(); }
void AlbumCoverExporter::StartExporting() {
exported_ = 0;
skipped_ = 0;
AddJobsToPool();
}
void AlbumCoverExporter::AddJobsToPool() {
while (!requests_.isEmpty() &&
thread_pool_->activeThreadCount() < thread_pool_->maxThreadCount()) {
CoverExportRunnable* runnable = requests_.dequeue();
connect(runnable, SIGNAL(CoverExported()), SLOT(CoverExported()));
connect(runnable, SIGNAL(CoverSkipped()), SLOT(CoverSkipped()));
thread_pool_->start(runnable);
}
}
void AlbumCoverExporter::CoverExported() {
exported_++;
emit AlbumCoversExportUpdate(exported_, skipped_, all_);
AddJobsToPool();
}
void AlbumCoverExporter::CoverSkipped() {
skipped_++;
emit AlbumCoversExportUpdate(exported_, skipped_, all_);
AddJobsToPool();
}