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Diffstat (limited to 'src/kitemviews/private/kdirectorycontentscounter.h')
| -rw-r--r-- | src/kitemviews/private/kdirectorycontentscounter.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/kitemviews/private/kdirectorycontentscounter.h b/src/kitemviews/private/kdirectorycontentscounter.h new file mode 100644 index 000000000..425c3632a --- /dev/null +++ b/src/kitemviews/private/kdirectorycontentscounter.h @@ -0,0 +1,90 @@ +/*************************************************************************** + * 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; + + QThread* m_workerThread; + 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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