1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/****************************************************************************
* Copyright (c) 2011 Anthony Vital <anthony.vital@gmail.com> *
* *
* This file is part of Wicd Client KDE. *
* *
* Wicd Client KDE 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 3 of the License, or *
* (at your option) any later version. *
* *
* Wicd Client KDE 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 Wicd Client KDE. If not, see <http://www.gnu.org/licenses/>.*
****************************************************************************/
#include "networkplotter.h"
#include <QGraphicsLinearLayout>
#include <KGlobalSettings>
#include <Plasma/DataEngineManager>
NetworkPlotter::NetworkPlotter(QGraphicsItem *parent = 0)
: Plasma::SignalPlotter( parent )
{
setThinFrame(false);
setShowLabels(false);
setShowTopBar(false);
setShowVerticalLines(false);
setShowHorizontalLines(false);
setUseAutoRange(true);
addPlot(QColor("#0099ff"));
addPlot(QColor("#91ff00"));
QGraphicsLinearLayout* vLayout = new QGraphicsLinearLayout(Qt::Vertical, this);
setLayout(vLayout);
m_overlayFrame = new Plasma::Frame(this);
m_overlayFrame->setFont(KGlobalSettings::smallestReadableFont());
vLayout->addStretch();
QGraphicsLinearLayout* hLayout = new QGraphicsLinearLayout(Qt::Horizontal, vLayout);
hLayout->addStretch();
hLayout->addItem(m_overlayFrame);
hLayout->addStretch();
vLayout->addItem(hLayout);
setMinimumHeight(60);
Plasma::DataEngineManager::self()->loadEngine("systemmonitor");
m_data = QList<double>() << -1 << -1;
m_interval = 1000;
}
NetworkPlotter::~NetworkPlotter()
{
Plasma::DataEngineManager::self()->unloadEngine("systemmonitor");
}
void NetworkPlotter::setInterface(const QString interface)
{
if (interface.isEmpty() || (!interface.isEmpty() && interface == m_interface)) {
return;
}
Plasma::DataEngine *e = Plasma::DataEngineManager::self()->engine("systemmonitor");
if (!e->isValid())
return;
e->disconnectSource("network/interfaces/"+m_interface+"/receiver/data", this);
e->disconnectSource("network/interfaces/"+m_interface+"/transmitter/data", this);
e->connectSource("network/interfaces/"+interface+"/receiver/data", this, m_interval);
e->connectSource("network/interfaces/"+interface+"/transmitter/data", this, m_interval);
m_interface = interface;
}
void NetworkPlotter::dataUpdated(const QString& source, const Plasma::DataEngine::Data &data)
{
QStringList split = source.split('/');
if (split.length() < 4) {
return;
}
//are we getting received or transmitted data?
int index = (split[3] == "receiver") ? 0 : 1;
//fill m_data accordingly
m_data[index] = qMax(0.0, data["value"].toDouble());
//update plotter only when the 2 values are filled
if (!m_data.contains(-1)) {
addSample(m_data);
QStringList list;
list << QString("%1 %2").arg(m_data[0], 0, 'f', (m_data[0] > 1000.0) ? 0 : 1).arg(i18n("KiB/s"));
list << QString("%1 %2").arg(m_data[1], 0, 'f', (m_data[1] > 1000.0) ? 0 : 1).arg(i18n("KiB/s"));
m_overlayFrame->setText(list.join(" / "));
m_data = QList<double>() << -1 << -1;
}
}
|
