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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use the contact form at
** http://qt.digia.com/
**
** This file is part of Qt Enterprise Embedded.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** the contact form at http://qt.digia.com/
**
****************************************************************************/
#include "qwifinetworklistmodel.h"
#include <QtCore>
const int ID_NETWORK = (Qt::ItemDataRole) (Qt::UserRole + 1);
QWifiNetworkListModel::QWifiNetworkListModel(QWifiManager *manager)
: m_manager(manager)
{
}
QWifiNetworkListModel::~QWifiNetworkListModel()
{
qDeleteAll(m_networks);
qDeleteAll(m_outOfRangeNetworks);
m_networks.clear();
m_outOfRangeNetworks.clear();
}
QHash<int, QByteArray> QWifiNetworkListModel::roleNames() const
{
QHash<int, QByteArray> names;
names.insert(ID_NETWORK, "network");
return names;
}
QVariant QWifiNetworkListModel::data(const QModelIndex &index, int role) const
{
QWifiNetwork *n = m_networks.at(index.row());
switch (role) {
case ID_NETWORK: return QVariant::fromValue((QObject *) n);
}
qWarning("QWifiNetworkListModel::data(), undefined role: %d\n", role);
return QVariant();
}
QWifiNetwork *QWifiNetworkListModel::networkForSSID(const QByteArray &ssid, int *pos)
{
for (int i = 0; i < m_networks.size(); ++i) {
if (m_networks.at(i)->ssid() == ssid) {
if (pos)
*pos = i;
return m_networks.at(i);
}
}
return 0;
}
QWifiNetwork *QWifiNetworkListModel::outOfRangeListContains(const QByteArray &ssid)
{
for (int i = 0; i < m_outOfRangeNetworks.length(); ++i)
if (m_outOfRangeNetworks.at(i)->ssid() == ssid)
return m_outOfRangeNetworks.takeAt(i);
return 0;
}
void QWifiNetworkListModel::parseScanResults(const QByteArray &results)
{
QList<QByteArray> lines = results.split('\n');
QSet<QByteArray> sensibleNetworks;
for (int i = 1; i < lines.size(); ++i) {
QList<QByteArray> info = lines.at(i).split('\t');
if (info.size() < 5 || info.at(4).isEmpty() || info.at(0).isEmpty())
continue;
int pos = 0;
sensibleNetworks.insert(info.at(4));
QWifiNetwork *knownNetwork = networkForSSID(info.at(4), &pos);
if (!knownNetwork)
knownNetwork = outOfRangeListContains(info.at(4));
if (!knownNetwork) {
QWifiNetwork *network = new QWifiNetwork();
network->setOutOfRange(false);
network->setBssid(info.at(0));
network->setFlags(info.at(3));
// signal strength is in dBm
network->setSignalStrength(info.at(2).toInt());
network->setSsid(info.at(4));
beginInsertRows(QModelIndex(), m_networks.size(), m_networks.size());
m_networks << network;
endInsertRows();
} else {
if (knownNetwork->outOfRange()) {
// known network has come back into a range
knownNetwork->setOutOfRange(false);
beginInsertRows(QModelIndex(), m_networks.size(), m_networks.size());
m_networks << knownNetwork;
endInsertRows();
pos = m_networks.length() - 1;
}
// ssids are the same, compare bssids..
if (knownNetwork->bssid() == info.at(0)) {
// same access point, simply update the signal strength
knownNetwork->setSignalStrength(info.at(2).toInt());
knownNetwork->setOutOfRange(false);
dataChanged(createIndex(pos, 0), createIndex(pos, 0));
} else if (knownNetwork->signalStrength() < info.at(2).toInt()) {
// replace with a stronger access point within the same network
m_networks.at(pos)->setOutOfRange(false);
m_networks.at(pos)->setBssid(info.at(0));
m_networks.at(pos)->setFlags(info.at(3));
m_networks.at(pos)->setSignalStrength(info.at(2).toInt());
m_networks.at(pos)->setSsid(info.at(4));
dataChanged(createIndex(pos, 0), createIndex(pos, 0));
}
}
}
// remove out-of-range networks from the data model
for (int i = 0; i < m_networks.size();) {
if (!sensibleNetworks.contains(m_networks.at(i)->ssid())) {
beginRemoveRows(QModelIndex(), i, i);
QWifiNetwork *n = m_networks.takeAt(i);
n->setOutOfRange(true);
m_outOfRangeNetworks.append(n);
endRemoveRows();
} else {
++i;
}
}
}
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