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 <QMouseEvent>
  26
  27 #include <KLocalizedString>
  28 #include <KNS3/KMoreToolsMenuFactory>
  29 #include <KIO/Job>
  30 #include <knewstuff_version.h>
  31
  32 StatusBarSpaceInfo::StatusBarSpaceInfo(QWidget* parent) :
  33     KCapacityBar(KCapacityBar::DrawTextInline, parent),
  34     m_observer(0)
  35 {
  36     setCursor(Qt::PointingHandCursor);
  37 }
  38
  39 StatusBarSpaceInfo::~StatusBarSpaceInfo()
  40 {
  41 }
  42
  43 void StatusBarSpaceInfo::setUrl(const QUrl& url)
  44 {
  45     if (m_url != url) {
  46         m_url = url;
  47         if (m_observer) {
  48             m_observer->setUrl(url);
  49         }
  50     }
  51 }
  52
  53 QUrl StatusBarSpaceInfo::url() const
  54 {
  55     return m_url;
  56 }
  57
  58 void StatusBarSpaceInfo::showEvent(QShowEvent* event)
  59 {
  60     KCapacityBar::showEvent(event);
  61     m_observer.reset(new SpaceInfoObserver(m_url, this));
  62     slotValuesChanged();
  63     connect(m_observer.data(), &SpaceInfoObserver::valuesChanged, this, &StatusBarSpaceInfo::slotValuesChanged);
  64 }
  65
  66 void StatusBarSpaceInfo::hideEvent(QHideEvent* event)
  67 {
  68     m_observer.reset();
  69     KCapacityBar::hideEvent(event);
  70 }
  71
  72 void StatusBarSpaceInfo::mousePressEvent(QMouseEvent* event)
  73 {
  74     if (event->button() == Qt::LeftButton) {
  75         // Creates a menu with tools that help to find out more about free
  76         // disk space for the given url.
  77
  78         // Note that this object must live long enough in case the user opens
  79         // the "Configure..." dialog
  80         KMoreToolsMenuFactory menuFactory(QStringLiteral("dolphin/statusbar-diskspace-menu"));
  81 #if KNEWSTUFF_VERSION >= QT_VERSION_CHECK(5, 37, 0)
  82         menuFactory.setParentWidget(this);
  83 #endif
  84         auto menu = menuFactory.createMenuFromGroupingNames(
  85             { "disk-usage", "more:", "disk-partitions" }, m_url);
  86
  87         menu->exec(QCursor::pos());
  88     }
  89 }
  90
  91 void StatusBarSpaceInfo::slotValuesChanged()
  92 {
  93     Q_ASSERT(m_observer);
  94     const quint64 size = m_observer->size();
  95     if (size == 0) {
  96         setText(i18nc("@info:status", "Unknown size"));
  97         setValue(0);
  98         update();
  99     } else {
 100         const quint64 available = m_observer->available();
 101         const quint64 used = size - available;
 102         const int percentUsed = qRound(100.0 * qreal(used) / qreal(size));
 103
 104         setText(i18nc("@info:status Free disk space", "%1 free", KIO::convertSize(available)));
 105         setUpdatesEnabled(false);
 106         setValue(percentUsed);
 107         setUpdatesEnabled(true);
 108         update();
 109     }
 110 }
 111