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
  28 #include <QMouseEvent>
  29
  30 StatusBarSpaceInfo::StatusBarSpaceInfo(QWidget* parent) :
  31     KCapacityBar(KCapacityBar::DrawTextInline, parent),
  32     m_observer(nullptr)
  33 {
  34     setCursor(Qt::PointingHandCursor);
  35 }
  36
  37 StatusBarSpaceInfo::~StatusBarSpaceInfo()
  38 {
  39 }
  40
  41 void StatusBarSpaceInfo::setUrl(const QUrl& url)
  42 {
  43     if (m_url != url) {
  44         m_url = url;
  45         if (m_observer) {
  46             m_observer->setUrl(url);
  47         }
  48     }
  49 }
  50
  51 QUrl StatusBarSpaceInfo::url() const
  52 {
  53     return m_url;
  54 }
  55
  56 void StatusBarSpaceInfo::update()
  57 {
  58     if (m_observer) {
  59         m_observer->update();
  60     }
  61 }
  62
  63 void StatusBarSpaceInfo::showEvent(QShowEvent* event)
  64 {
  65     KCapacityBar::showEvent(event);
  66     m_observer.reset(new SpaceInfoObserver(m_url, this));
  67     slotValuesChanged();
  68     connect(m_observer.data(), &SpaceInfoObserver::valuesChanged, this, &StatusBarSpaceInfo::slotValuesChanged);
  69 }
  70
  71 void StatusBarSpaceInfo::hideEvent(QHideEvent* event)
  72 {
  73     m_observer.reset();
  74     KCapacityBar::hideEvent(event);
  75 }
  76
  77 void StatusBarSpaceInfo::mousePressEvent(QMouseEvent* event)
  78 {
  79     if (event->button() == Qt::LeftButton) {
  80         // Creates a menu with tools that help to find out more about free
  81         // disk space for the given url.
  82
  83         // Note that this object must live long enough in case the user opens
  84         // the "Configure..." dialog
  85         KMoreToolsMenuFactory menuFactory(QStringLiteral("dolphin/statusbar-diskspace-menu"));
  86         menuFactory.setParentWidget(this);
  87         auto menu = menuFactory.createMenuFromGroupingNames(
  88             { "disk-usage", "more:", "disk-partitions" }, m_url);
  89
  90         menu->exec(QCursor::pos());
  91     }
  92 }
  93
  94 void StatusBarSpaceInfo::slotValuesChanged()
  95 {
  96     Q_ASSERT(m_observer);
  97     const quint64 size = m_observer->size();
  98     if (size == 0) {
  99         setText(i18nc("@info:status", "Unknown size"));
 100         setValue(0);
 101         update();
 102     } else {
 103         const quint64 available = m_observer->available();
 104         const quint64 used = size - available;
 105         const int percentUsed = qRound(100.0 * qreal(used) / qreal(size));
 106
 107         setText(i18nc("@info:status Free disk space", "%1 free", KIO::convertSize(available)));
 108         setUpdatesEnabled(false);
 109         setValue(percentUsed);
 110         setUpdatesEnabled(true);
 111         update();
 112     }
 113 }
 114