1 | /*************************************************************************** |
2 | * Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com> * |
3 | * Copyright (C) 2013 by Frank Reininghaus <frank78ac@googlemail.com> * |
4 | * * |
5 | * This program is free software; you can redistribute it and/or modify * |
6 | * it under the terms of the GNU General Public License as published by * |
7 | * the Free Software Foundation; either version 2 of the License, or * |
8 | * (at your option) any later version. * |
9 | * * |
10 | * This program is distributed in the hope that it will be useful, * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
13 | * GNU General Public License for more details. * |
14 | * * |
15 | * You should have received a copy of the GNU General Public License * |
16 | * along with this program; if not, write to the * |
17 | * Free Software Foundation, Inc., * |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * |
19 | ***************************************************************************/ |
20 | |
21 | #ifndef KDIRECTORYCONTENTSCOUNTER_H |
22 | #define KDIRECTORYCONTENTSCOUNTER_H |
23 | |
24 | #include "kdirectorycontentscounterworker.h" |
25 | |
26 | #include <QSet> |
27 | #include <QQueue> |
28 | |
29 | class KDirWatch; |
30 | class KFileItemModel; |
31 | class QString; |
32 | |
33 | class KDirectoryContentsCounter : public QObject |
34 | { |
35 | Q_OBJECT |
36 | |
37 | public: |
38 | explicit KDirectoryContentsCounter(KFileItemModel* model, QObject* parent = 0); |
39 | ~KDirectoryContentsCounter(); |
40 | |
41 | /** |
42 | * Requests the number of items inside the directory \a path. The actual |
43 | * counting is done asynchronously, and the result is announced via the |
44 | * signal \a result. |
45 | * |
46 | * The directory \a path is watched for changes, and the signal is emitted |
47 | * again if a change occurs. |
48 | */ |
49 | void addDirectory(const QString& path); |
50 | |
51 | /** |
52 | * In contrast to \a addDirectory, this function counts the items inside |
53 | * the directory \a path synchronously and returns the result. |
54 | * |
55 | * The directory is watched for changes, and the signal \a result is |
56 | * emitted if a change occurs. |
57 | */ |
58 | int countDirectoryContentsSynchronously(const QString& path); |
59 | |
60 | signals: |
61 | /** |
62 | * Signals that the directory \a path contains \a count items. |
63 | */ |
64 | void result(const QString& path, int count); |
65 | |
66 | void requestDirectoryContentsCount(const QString& path, KDirectoryContentsCounterWorker::Options options); |
67 | |
68 | private slots: |
69 | void slotResult(const QString& path, int count); |
70 | void slotDirWatchDirty(const QString& path); |
71 | void slotItemsRemoved(); |
72 | |
73 | private: |
74 | void startWorker(const QString& path); |
75 | |
76 | private: |
77 | KFileItemModel* m_model; |
78 | |
79 | QQueue<QString> m_queue; |
80 | |
81 | static QThread* m_workerThread; |
82 | static int m_workersCount; |
83 | |
84 | KDirectoryContentsCounterWorker* m_worker; |
85 | bool m_workerIsBusy; |
86 | |
87 | KDirWatch* m_dirWatcher; |
88 | QSet<QString> m_watchedDirs; // Required as sadly KDirWatch does not offer a getter method |
89 | // to get all watched directories. |
90 | }; |
91 | |
92 | #endif |