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// Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "dialog.h"
#include <QComboBox>
#include <QGridLayout>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QSerialPortInfo>
#include <QSpinBox>
Dialog::Dialog(QWidget *parent) :
QDialog(parent),
m_serialPortLabel(new QLabel(tr("Serial port:"))),
m_serialPortComboBox(new QComboBox),
m_waitRequestLabel(new QLabel(tr("Wait request, msec:"))),
m_waitRequestSpinBox(new QSpinBox),
m_responseLabel(new QLabel(tr("Response:"))),
m_responseLineEdit(new QLineEdit(tr("Hello, I'm the receiver."))),
m_trafficLabel(new QLabel(tr("No traffic."))),
m_statusLabel(new QLabel(tr("Status: Not running."))),
m_runButton(new QPushButton(tr("Start")))
{
m_waitRequestSpinBox->setRange(0, 10000);
m_waitRequestSpinBox->setValue(20);
const auto infos = QSerialPortInfo::availablePorts();
for (const QSerialPortInfo &info : infos)
m_serialPortComboBox->addItem(info.portName());
auto mainLayout = new QGridLayout;
mainLayout->addWidget(m_serialPortLabel, 0, 0);
mainLayout->addWidget(m_serialPortComboBox, 0, 1);
mainLayout->addWidget(m_waitRequestLabel, 1, 0);
mainLayout->addWidget(m_waitRequestSpinBox, 1, 1);
mainLayout->addWidget(m_runButton, 0, 2, 2, 1);
mainLayout->addWidget(m_responseLabel, 2, 0);
mainLayout->addWidget(m_responseLineEdit, 2, 1, 1, 3);
mainLayout->addWidget(m_trafficLabel, 3, 0, 1, 4);
mainLayout->addWidget(m_statusLabel, 4, 0, 1, 5);
setLayout(mainLayout);
setWindowTitle(tr("Receiver"));
m_serialPortComboBox->setFocus();
m_timer.setSingleShot(true);
connect(m_runButton, &QPushButton::clicked, this, &Dialog::startReceiver);
connect(&m_serial, &QSerialPort::readyRead, this, &Dialog::readRequest);
connect(&m_timer, &QTimer::timeout, this, &Dialog::processTimeout);
connect(m_serialPortComboBox, &QComboBox::currentIndexChanged, this, &Dialog::activateRunButton);
connect(m_waitRequestSpinBox, &QSpinBox::valueChanged, this, &Dialog::activateRunButton);
connect(m_responseLineEdit, &QLineEdit::textChanged, this, &Dialog::activateRunButton);
}
void Dialog::startReceiver()
{
if (m_serial.portName() != m_serialPortComboBox->currentText()) {
m_serial.close();
m_serial.setPortName(m_serialPortComboBox->currentText());
if (!m_serial.open(QIODevice::ReadWrite)) {
processError(tr("Can't open %1, error code %2")
.arg(m_serial.portName()).arg(m_serial.error()));
return;
}
}
m_runButton->setEnabled(false);
m_statusLabel->setText(tr("Status: Running, connected to port %1.")
.arg(m_serialPortComboBox->currentText()));
}
void Dialog::readRequest()
{
if (!m_timer.isActive())
m_timer.start(m_waitRequestSpinBox->value());
m_request.append(m_serial.readAll());
}
void Dialog::processTimeout()
{
m_serial.write(m_responseLineEdit->text().toUtf8());
m_trafficLabel->setText(tr("Traffic, transaction #%1:"
"\n\r-request: %2"
"\n\r-response: %3")
.arg(++m_transactionCount).arg(QString::fromUtf8(m_request))
.arg(m_responseLineEdit->text()));
m_request.clear();
}
void Dialog::activateRunButton()
{
m_runButton->setEnabled(true);
}
void Dialog::processError(const QString &s)
{
activateRunButton();
m_statusLabel->setText(tr("Status: Not running, %1.").arg(s));
m_trafficLabel->setText(tr("No traffic."));
}
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