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