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/***************************************************************************
* Copyright (C) 2011 by Peter Penz <[email protected]> *
* Copyright (C) 2013 by Frank Reininghaus <[email protected]> *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#ifndef KDIRECTORYCONTENTSCOUNTER_H
#define KDIRECTORYCONTENTSCOUNTER_H
#include "kdirectorycontentscounterworker.h"
#include <QSet>
#include <QQueue>
class KDirWatch;
class KFileItemModel;
class QString;
class KDirectoryContentsCounter : public QObject
{
Q_OBJECT
public:
explicit KDirectoryContentsCounter(KFileItemModel* model, QObject* parent = 0);
~KDirectoryContentsCounter();
/**
* Requests the number of items inside the directory \a path. The actual
* counting is done asynchronously, and the result is announced via the
* signal \a result.
*
* The directory \a path is watched for changes, and the signal is emitted
* again if a change occurs.
*/
void addDirectory(const QString& path);
/**
* In contrast to \a addDirectory, this function counts the items inside
* the directory \a path synchronously and returns the result.
*
* The directory is watched for changes, and the signal \a result is
* emitted if a change occurs.
*/
int countDirectoryContentsSynchronously(const QString& path);
signals:
/**
* Signals that the directory \a path contains \a count items.
*/
void result(const QString& path, int count);
void requestDirectoryContentsCount(const QString& path, KDirectoryContentsCounterWorker::Options options);
private slots:
void slotResult(const QString& path, int count);
void slotDirWatchDirty(const QString& path);
void slotItemsRemoved();
private:
void startWorker(const QString& path);
private:
KFileItemModel* m_model;
QQueue<QString> m_queue;
static QThread* m_workerThread;
static int m_workersCount;
KDirectoryContentsCounterWorker* m_worker;
bool m_workerIsBusy;
KDirWatch* m_dirWatcher;
QSet<QString> m_watchedDirs; // Required as sadly KDirWatch does not offer a getter method
// to get all watched directories.
};
#endif
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