src/statusbarspaceinfo.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at) and              *
   3  *   and Patrice Tremblay                                                  *
   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 #include "statusbarspaceinfo.h"
  22
  23 #include <KDiskFreeSpaceInfo>
  24 #include <kmountpoint.h>
  25 #include <klocale.h>
  26 #include <kio/job.h>
  27
  28 #include <QTimer>
  29 #include <QKeyEvent>
  30
  31 StatusBarSpaceInfo::StatusBarSpaceInfo(QWidget* parent) :
  32     KCapacityBar(KCapacityBar::DrawTextInline, parent),
  33     m_kBSize(0)
  34 {
  35     setMaximumWidth(200);
  36     setMinimumWidth(200); // something to fix on kcapacitybar (ereslibre)
  37
  38     // Update the space information each 10 seconds. Polling is useful
  39     // here, as files can be deleted/added outside the scope of Dolphin.
  40     QTimer* timer = new QTimer(this);
  41     connect(timer, SIGNAL(timeout()), this, SLOT(refresh()));
  42     timer->start(10000);
  43 }
  44
  45 StatusBarSpaceInfo::~StatusBarSpaceInfo()
  46 {
  47 }
  48
  49 void StatusBarSpaceInfo::setUrl(const KUrl& url)
  50 {
  51     m_url = url;
  52     refresh();
  53 }
  54
  55 void StatusBarSpaceInfo::refresh()
  56 {
  57     // KDiskFreeSpace is for local paths only
  58     if (!m_url.isLocalFile()) {
  59         setText(i18nc("@info:status", "Unknown size"));
  60         setValue(0);
  61         update();
  62         return;
  63     }
  64
  65     KMountPoint::Ptr mp = KMountPoint::currentMountPoints().findByPath(m_url.path());
  66     if (!mp) {
  67         return;
  68     }
  69
  70     KDiskFreeSpaceInfo job = KDiskFreeSpaceInfo::freeSpaceInfo(mp->mountPoint());
  71     if (!job.isValid()) {
  72         setText(i18nc("@info:status", "Unknown size"));
  73         setValue(0);
  74         update();
  75         return;
  76     }
  77
  78     KIO::filesize_t kBSize = job.size() / 1024;
  79     KIO::filesize_t kBUsed = job.used() / 1024;
  80
  81     const bool valuesChanged = (kBUsed != static_cast<quint64>(value())) || (kBSize != m_kBSize);
  82     if (valuesChanged) {
  83         setText(i18nc("@info:status Free disk space", "%1 free",
  84                 KIO::convertSize(job.available())));
  85
  86         setUpdatesEnabled(false);
  87         m_kBSize = kBSize;
  88         setValue(kBSize > 0 ? (kBUsed * 100) / kBSize : 0);
  89         setUpdatesEnabled(true);
  90         update();
  91     }
  92 }
  93
  94 #include "statusbarspaceinfo.moc"