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[dolphin.git] / src / panels / places / placesitemlistwidget.cpp

diff --git a/src/panels/places/placesitemlistwidget.cpp b/src/panels/places/placesitemlistwidget.cpp
index 24c2b3f11ff924ccc23d41933782529f1047c193..38bc13438c6335b8182f61e952e475fe09e20e9f 100644 (file)
--- a/src/panels/places/placesitemlistwidget.cpp
+++ b/src/panels/places/placesitemlistwidget.cpp
@@ -1,28 +1,28 @@
-/***************************************************************************
- *   Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com>             *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2012 Peter Penz <peter.penz19@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */

 
 #include "placesitemlistwidget.h"
 
 
 #include "placesitemlistwidget.h"
 

-#include "kdebug.h"
+#include <QStyleOption>
+#include <QPainter>
+
+#include <KColorScheme>
+
+#include <KIO/FileSystemFreeSpaceJob>
+#include <Solid/Device>
+#include <Solid/NetworkShare>
+
+#define CAPACITYBAR_HEIGHT 2
+#define CAPACITYBAR_MARGIN 2
+#define CAPACITYBAR_CACHE_TTL 60000
+

 
 PlacesItemListWidget::PlacesItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
     KStandardItemListWidget(informant, parent)
 
 PlacesItemListWidget::PlacesItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
     KStandardItemListWidget(informant, parent)

+    , m_drawCapacityBar(false)

 {
 }
 
 {
 }
 


@@ -32,7 +32,116 @@ PlacesItemListWidget::~PlacesItemListWidget()
 
 bool PlacesItemListWidget::isHidden() const
 {
 
 bool PlacesItemListWidget::isHidden() const
 {

-    return data().value("isHidden").toBool();
+    return data().value("isHidden").toBool() ||
+           data().value("isGroupHidden").toBool();
+}
+
+QPalette::ColorRole PlacesItemListWidget::normalTextColorRole() const
+{
+    return QPalette::WindowText;
+}
+
+void PlacesItemListWidget::updateCapacityBar()
+{
+    const QString udi = data().value("udi").toString();
+    if (udi.isEmpty()) {
+        resetCapacityBar();
+        return;
+    }
+    const Solid::Device device = Solid::Device(udi);
+    if (device.isDeviceInterface(Solid::DeviceInterface::NetworkShare)
+            || device.isDeviceInterface(Solid::DeviceInterface::OpticalDrive)
+            || device.isDeviceInterface(Solid::DeviceInterface::OpticalDisc)) {
+        resetCapacityBar();
+        return;
+    }
+    const QUrl url = data().value("url").toUrl();
+
+    if (m_freeSpaceInfo.job || !m_freeSpaceInfo.lastUpdated.hasExpired()) {
+        // Job running or cache is still valid.
+        return;
+    }
+
+    m_freeSpaceInfo.job = KIO::fileSystemFreeSpace(url);
+    connect(
+        m_freeSpaceInfo.job,
+        &KIO::FileSystemFreeSpaceJob::result,
+        this,
+        [this](KIO::Job *job, KIO::filesize_t size, KIO::filesize_t available) {
+            // even if we receive an error we want to refresh lastUpdated to avoid repeatedly querying in this case
+            m_freeSpaceInfo.lastUpdated.setRemainingTime(CAPACITYBAR_CACHE_TTL);
+
+            if (job->error()) {
+                return;
+            }
+
+            m_freeSpaceInfo.size = size;
+            m_freeSpaceInfo.used = size - available;
+            m_freeSpaceInfo.usedRatio = (qreal)m_freeSpaceInfo.used / (qreal)m_freeSpaceInfo.size;
+            m_drawCapacityBar = size > 0;
+
+            update();
+        }
+    );
+}
+
+void PlacesItemListWidget::resetCapacityBar()
+{
+    m_drawCapacityBar = false;
+    delete m_freeSpaceInfo.job;
+    m_freeSpaceInfo.lastUpdated.setRemainingTime(0);
+    m_freeSpaceInfo.size = 0;
+    m_freeSpaceInfo.used = 0;
+    m_freeSpaceInfo.usedRatio = 0;
+}
+
+void PlacesItemListWidget::polishEvent()
+{
+    updateCapacityBar();
+
+    QGraphicsWidget::polishEvent();

 }
 
 }
 

-#include "placesitemlistwidget.moc"
+void PlacesItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+    KStandardItemListWidget::paint(painter, option, widget);
+
+    if (m_drawCapacityBar) {
+        const TextInfo* textInfo = m_textInfo.value("text");
+        if (textInfo) { // See KStandarItemListWidget::paint() for info on why we check textInfo.
+            painter->save();
+
+            const QRect capacityRect(
+                textInfo->pos.x(),
+                option->rect.top() + option->rect.height() - CAPACITYBAR_HEIGHT - CAPACITYBAR_MARGIN,
+                qMin((qreal)option->rect.width(), selectionRect().width()) - (textInfo->pos.x() - option->rect.left()),
+                CAPACITYBAR_HEIGHT
+            );
+
+            const QPalette pal = palette();
+            const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
+
+            // Background
+            const QColor bgColor = isSelected()
+                ? pal.color(group, QPalette::Highlight).darker(180)
+                : pal.color(group, QPalette::Window).darker(120);
+
+            painter->fillRect(capacityRect, bgColor);
+
+            // Fill
+            const QRect fillRect(capacityRect.x(), capacityRect.y(), capacityRect.width() * m_freeSpaceInfo.usedRatio, capacityRect.height());
+            if (m_freeSpaceInfo.usedRatio >= 0.95) { // More than 95% full!
+                const QColor dangerUsedColor = KColorScheme(group, KColorScheme::View).foreground(KColorScheme::NegativeText).color();
+                painter->fillRect(fillRect, dangerUsedColor);
+            } else {
+                const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : QPalette::Highlight;
+                const QColor normalUsedColor = styleOption().palette.color(group, role);
+                painter->fillRect(fillRect, normalUsedColor);
+            }
+
+            painter->restore();
+        }
+    }
+
+    updateCapacityBar();
+}