src/diskinformation.cpp

   1 /**
   2  * Copyright (C) 2007 Benjamin C. Meyer
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #include "diskinformation.h"
  20
  21 #if defined(Q_OS_UNIX)
  22 #  include <sys/statvfs.h>
  23
  24 DiskInformation getDiskInformation(const QString &path)
  25 {
  26     struct statvfs vfs;
  27     if (statvfs(path.toLocal8Bit().constData(), &vfs) < 0)
  28         return DiskInformation();
  29     DiskInformation result = {
  30         vfs.f_blocks * (qint64)vfs.f_frsize,
  31         vfs.f_bavail * (qint64)vfs.f_frsize
  32     };
  33     return result;
  34 }
  35
  36 #endif
  37
  38 /****************************************************************************
  39 **
  40 ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
  41 **
  42 ** This file is part of the QtGui module of the Qt Toolkit.
  43 **
  44 ** This file may be used under the terms of the GNU General Public
  45 ** License version 2.0 as published by the Free Software Foundation
  46 ** and appearing in the file LICENSE.GPL included in the packaging of
  47 ** this file.  Please review the following information to ensure GNU
  48 ** General Public Licensing requirements will be met:
  49 ** http://www.trolltech.com/products/qt/opensource.html
  50 **
  51 ** If you are unsure which license is appropriate for your use, please
  52 ** review the following information:
  53 ** http://www.trolltech.com/products/qt/licensing.html or contact the
  54 ** sales department at sales@trolltech.com.
  55 **
  56 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  57 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  58 **
  59 ****************************************************************************/
  60
  61 #include <qlocale.h>
  62
  63 QString humanSize(qint64 bytes)
  64 {
  65     // According to the Si standard KB is 1000 bytes, KiB is 1024
  66     // but on windows sizes are calculated by dividing by 1024 so we do what they do.
  67     const qint64 kb = 1024;
  68     const qint64 mb = 1024 * kb;
  69     const qint64 gb = 1024 * mb;
  70     const qint64 tb = 1024 * gb;
  71     if (bytes >= tb)
  72         return QString("%1 TB").arg(QLocale().toString(qreal(bytes) / tb, 'f', 3));
  73     if (bytes >= gb)
  74         return QString("%1 GB").arg(QLocale().toString(qreal(bytes) / gb, 'f', 2));
  75     if (bytes >= mb)
  76         return QString("%1 MB").arg(QLocale().toString(qreal(bytes) / mb, 'f', 1));
  77     if (bytes >= kb)
  78         return QString("%1 KB").arg(QLocale().toString(bytes / kb));
  79     return QString("%1 bytes").arg(QLocale().toString(bytes));
  80 }