lauzeroconfwidget.cpp

/**************************************************************************************************
    Copyright (C) 2017 Dr. Daniel L. Lau
    This file is part of LAURobotWidget.

    LAURobotWidget 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 3 of the License, or
    (at your option) any later version.

    LAURobotWidget 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 LAURobotWidget.  If not, see <http://www.gnu.org/licenses/>.

**************************************************************************************************/
#include "lauzeroconfwidget.h"

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
LAUZeroConfClientWidget::LAUZeroConfClientWidget(QString service, QWidget *parent) : QWidget(parent), tcpAddressComboBox(NULL), serviceString(service), zeroConf(NULL)
{
    this->setLayout(new QVBoxLayout());
    this->layout()->setContentsMargins(0, 0, 0, 0);
    this->layout()->setSpacing(0);
    this->setWindowTitle(QString("TCP 3D Video Recorder"));

    QWidget *widget = new QWidget();
    widget->setLayout(new QVBoxLayout());
    widget->layout()->setContentsMargins(6, 6, 6, 6);
    this->layout()->addWidget(widget);

    QGroupBox *box = new QGroupBox(QString("Server Address"));
    box->setLayout(new QHBoxLayout());
    box->layout()->setContentsMargins(6, 6, 6, 6);
    widget->layout()->addWidget(box);

    tcpAddressComboBox = new QComboBox();
    tcpAddressComboBox->setMinimumWidth(300);
    connect(tcpAddressComboBox, SIGNAL(currentIndexChanged(QString)), this, SLOT(onLineEdit_currentIndexChanged(QString)));

    QLabel *label = new QLabel(QString("Host:"));
    label->setFixedWidth(40);
    box->layout()->addWidget(label);
    box->layout()->addWidget(tcpAddressComboBox);

    // MAKE CONNECTIONS BETWEEN THIS OBJECT AND THE BONJOUR SERVICE OBJECT
    zeroConf = new QZeroConf();
    connect(zeroConf, SIGNAL(serviceAdded(QZeroConfService)), this, SLOT(onAddService(QZeroConfService)));
    connect(zeroConf, SIGNAL(serviceRemoved(QZeroConfService)), this, SLOT(onRemoveService(QZeroConfService)));
    connect(zeroConf, SIGNAL(serviceUpdated(QZeroConfService)), this, SLOT(onUpdateService(QZeroConfService)));
    connect(zeroConf, SIGNAL(error(QZeroConf::error_t)), this, SLOT(onServiceError(QZeroConf::error_t)));
    zeroConf->startBrowser(serviceString, QAbstractSocket::IPv4Protocol);
}

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
LAUZeroConfClientWidget::~LAUZeroConfClientWidget()
{
    if (zeroConf) {
        delete zeroConf;
    }
}

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
void LAUZeroConfClientWidget::onServiceError(QZeroConf::error_t error)
{
    switch (error) {
        case QZeroConf::noError:
            break;
        case QZeroConf::serviceRegistrationFailed:
            QMessageBox::warning(NULL, QString("LAUZeroConfClientWidget"), QString("Zero Conf Client Error: Registration failed!"), QMessageBox::Ok);
            break;
        case QZeroConf::serviceNameCollision:
            QMessageBox::warning(NULL, QString("LAUZeroConfClientWidget"), QString("Zero Conf Client Error: Name collision!"), QMessageBox::Ok);
            break;
        case QZeroConf::browserFailed:
            QMessageBox::warning(NULL, QString("LAUZeroConfClientWidget"), QString("Zero Conf Client Error: Browser failed!"), QMessageBox::Ok);
            break;
    }
}

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
void LAUZeroConfClientWidget::onAddService(QZeroConfService item)
{
    tcpAddressComboBox->addItem(QString("%1::%2").arg(item.name()).arg(item.port()), item.ip().toString());
}

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
void LAUZeroConfClientWidget::onRemoveService(QZeroConfService item)
{
    tcpAddressComboBox->removeItem(tcpAddressComboBox->findText(QString("%1::%2").arg(item.name()).arg(item.port())));
}

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
void LAUZeroConfClientWidget::onUpdateService(QZeroConfService)
{
    qDebug() << "LAUZeroConfClientWidget :: Update service!";
}

/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
void LAUZeroConfClientWidget::onLineEdit_currentIndexChanged(QString string)
{
    QStringList strings = string.split(QString("::"));
    if (strings.count() == 2) {
        ipString = tcpAddressComboBox->currentData().toString();
        portNumber = strings.last().toInt();
        emit emitValidAddress(true);
    } else {
        ipString = QString();
        portNumber = -1;
        emit emitValidAddress(false);
    }
}