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lxqt-panel-packaging/plugin-networkmonitor/lxqtnetworkmonitor.cpp

217 lines
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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXDE-Qt - a lightweight, Qt based, desktop toolset
* http://razor-qt.org
*
* Copyright: 2012 Razor team
* Authors:
* Alexander Sokoloff <sokoloff.a@gmail.com>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include "lxqtnetworkmonitor.h"
#include "lxqtnetworkmonitorconfiguration.h"
#include "../panel/ilxqtpanelplugin.h"
#include <QEvent>
#include <QPainter>
#include <QPixmap>
#include <QLinearGradient>
#include <QHBoxLayout>
extern "C" {
#include <statgrab.h>
}
#ifdef __sg_public
// since libstatgrab 0.90 this macro is defined, so we use it for version check
#define STATGRAB_NEWER_THAN_0_90 1
#endif
LxQtNetworkMonitor::LxQtNetworkMonitor(ILxQtPanelPlugin *plugin, QWidget* parent):
QFrame(parent),
mPlugin(plugin)
{
QHBoxLayout *layout = new QHBoxLayout(this);
layout->addWidget(&m_stuff);
setLayout(layout);
/* Initialise statgrab */
#ifdef STATGRAB_NEWER_THAN_0_90
sg_init(0);
#else
sg_init();
#endif
m_iconList << "modem" << "monitor"
<< "network" << "wireless";
startTimer(800);
settingsChanged();
}
LxQtNetworkMonitor::~LxQtNetworkMonitor()
{
}
void LxQtNetworkMonitor::resizeEvent(QResizeEvent *)
{
m_stuff.setMinimumWidth(m_pic.width() + 2);
m_stuff.setMinimumHeight(m_pic.height() + 2);
update();
}
void LxQtNetworkMonitor::timerEvent(QTimerEvent *event)
{
bool matched = false;
#ifdef STATGRAB_NEWER_THAN_0_90
size_t num_network_stats;
size_t x;
#else
int num_network_stats;
int x;
#endif
sg_network_io_stats *network_stats = sg_get_network_io_stats_diff(&num_network_stats);
for (x = 0; x < num_network_stats; x++)
{
if (m_interface == QString::fromLocal8Bit(network_stats->interface_name))
{
if (network_stats->rx != 0 && network_stats->tx != 0)
{
m_pic.load(iconName("transmit-receive"));
}
else if (network_stats->rx != 0 && network_stats->tx == 0)
{
m_pic.load(iconName("receive"));
}
else if (network_stats->rx == 0 && network_stats->tx != 0)
{
m_pic.load(iconName("transmit"));
}
else
{
m_pic.load(iconName("idle"));
}
matched = true;
break;
}
network_stats++;
}
if (!matched)
{
m_pic.load(iconName("error"));
}
update();
}
void LxQtNetworkMonitor::paintEvent(QPaintEvent *)
{
QPainter p(this);
QRectF r = rect();
int leftOffset = (r.width() - m_pic.width() + 2) / 2;
int topOffset = (r.height() - m_pic.height() + 2) / 2;
p.drawPixmap(leftOffset, topOffset, m_pic);
}
bool LxQtNetworkMonitor::event(QEvent *event)
{
if (event->type() == QEvent::ToolTip)
{
#ifdef STATGRAB_NEWER_THAN_0_90
size_t num_network_stats;
size_t x;
#else
int num_network_stats;
int x;
#endif
sg_network_io_stats *network_stats = sg_get_network_io_stats(&num_network_stats);
for (x = 0; x < num_network_stats; x++)
{
if (m_interface == QString::fromLocal8Bit(network_stats->interface_name))
{
setToolTip(tr("Network interface <b>%1</b>").arg(m_interface) + "<br>"
+ tr("Transmitted %1").arg(convertUnits(network_stats->tx)) + "<br>"
+ tr("Received %1").arg(convertUnits(network_stats->rx))
);
}
network_stats++;
}
}
return QFrame::event(event);
}
//void LxQtNetworkMonitor::showConfigureDialog()
//{
// LxQtNetworkMonitorConfiguration *confWindow =
// this->findChild<LxQtNetworkMonitorConfiguration*>("LxQtNetworkMonitorConfigurationWindow");
// if (!confWindow)
// {
// confWindow = new LxQtNetworkMonitorConfiguration(settings(), this);
// }
// confWindow->show();
// confWindow->raise();
// confWindow->activateWindow();
//}
void LxQtNetworkMonitor::settingsChanged()
{
m_iconIndex = mPlugin->settings()->value("icon", 1).toInt();
m_interface = mPlugin->settings()->value("interface").toString();
if (m_interface.isEmpty())
{
#ifdef STATGRAB_NEWER_THAN_0_90
size_t count;
#else
int count;
#endif
sg_network_iface_stats* stats = sg_get_network_iface_stats(&count);
if (count > 0)
m_interface = QString(stats[0].interface_name);
}
m_pic.load(iconName("error"));
}
QString LxQtNetworkMonitor::convertUnits(double num)
{
QString unit = tr("B");
QStringList units = QStringList(tr("KiB")) << tr("MiB") << tr("GiB") << tr("TiB") << tr("PiB");
for (QStringListIterator iter(units); num >= 1024 && iter.hasNext();)
{
num /= 1024;
unit = iter.next();
}
return QString::number(num, 'f', 2) + " " + unit;
}