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