src/statusbar/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 "spaceinfoobserver.h"
  24
  25 #include <KLocale>
  26 #include <KIO/Job>
  27
  28 #include <QKeyEvent>
  29
  30 StatusBarSpaceInfo::StatusBarSpaceInfo(QWidget* parent) :
  31     KCapacityBar(KCapacityBar::DrawTextInline, parent),
  32     m_observer(0)
  33 {
  34 }
  35
  36 StatusBarSpaceInfo::~StatusBarSpaceInfo()
  37 {
  38 }
  39
  40 void StatusBarSpaceInfo::setUrl(const KUrl& url)
  41 {
  42     if (m_url != url) {
  43         m_url = url;
  44         if (m_observer) {
  45             m_observer->setUrl(url);
  46         }
  47     }
  48 }
  49
  50 KUrl StatusBarSpaceInfo::url() const
  51 {
  52     return m_url;
  53 }
  54
  55 void StatusBarSpaceInfo::showEvent(QShowEvent* event)
  56 {
  57     KCapacityBar::showEvent(event);
  58     m_observer.reset(new SpaceInfoObserver(m_url, this));
  59     slotValuesChanged();
  60     connect(m_observer.data(), SIGNAL(valuesChanged()), this, SLOT(slotValuesChanged()));
  61 }
  62
  63 void StatusBarSpaceInfo::hideEvent(QHideEvent* event)
  64 {
  65     m_observer.reset();
  66     KCapacityBar::hideEvent(event);
  67 }
  68
  69 void StatusBarSpaceInfo::slotValuesChanged()
  70 {
  71     Q_ASSERT(m_observer);
  72     const quint64 size = m_observer->size();
  73     if (size == 0) {
  74         setText(i18nc("@info:status", "Unknown size"));
  75         setValue(0);
  76         update();
  77     } else {
  78         const quint64 available = m_observer->available();
  79         const quint64 used = size - available;
  80         const int percentUsed = qRound(100.0 * qreal(used) / qreal(size));
  81
  82         setText(i18nc("@info:status Free disk space", "%1 free", KIO::convertSize(available)));
  83         setUpdatesEnabled(false);
  84         setValue(percentUsed);
  85         setUpdatesEnabled(true);
  86         update();
  87     }
  88 }
  89
  90 #include "statusbarspaceinfo.moc"