Revision control
++ // 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_transactionCount(0),
++ m_serialPortLabel(new QLabel(tr("Serial port:"))),
++ m_serialPortComboBox(new QComboBox),
++ m_waitResponseLabel(new QLabel(tr("Wait response, msec:"))),
++ m_waitResponseSpinBox(new QSpinBox),
++ m_requestLabel(new QLabel(tr("Request:"))),
++ m_requestLineEdit(new QLineEdit(tr("Who are you?"))),
++ m_trafficLabel(new QLabel(tr("No traffic."))),
++ m_statusLabel(new QLabel(tr("Status: Not running."))),
++ m_runButton(new QPushButton(tr("Start")))
++ {
++ const auto infos = QSerialPortInfo::availablePorts();
++ for (const QSerialPortInfo &info : infos)
++ m_serialPortComboBox->addItem(info.portName());
++
++ m_waitResponseSpinBox->setRange(0, 10000);
++ m_waitResponseSpinBox->setValue(100);
++
++ auto mainLayout = new QGridLayout;
++ mainLayout->addWidget(m_serialPortLabel, 0, 0);
++ mainLayout->addWidget(m_serialPortComboBox, 0, 1);
++ mainLayout->addWidget(m_waitResponseLabel, 1, 0);
++ mainLayout->addWidget(m_waitResponseSpinBox, 1, 1);
++ mainLayout->addWidget(m_runButton, 0, 2, 2, 1);
++ mainLayout->addWidget(m_requestLabel, 2, 0);
++ mainLayout->addWidget(m_requestLineEdit, 2, 1, 1, 3);
++ mainLayout->addWidget(m_trafficLabel, 3, 0, 1, 4);
++ mainLayout->addWidget(m_statusLabel, 4, 0, 1, 5);
++ setLayout(mainLayout);
++
++ setWindowTitle(tr("Sender"));
++ m_serialPortComboBox->setFocus();
++
++ m_timer.setSingleShot(true);
++
++ connect(m_runButton, &QPushButton::clicked, this, &Dialog::sendRequest);
++ connect(&m_serial, &QSerialPort::readyRead, this, &Dialog::readResponse);
++ connect(&m_timer, &QTimer::timeout, this, &Dialog::processTimeout);
++ }
++
++ void Dialog::sendRequest()
++ {
++ 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;
++ }
++ }
++
++ setControlsEnabled(false);
++ m_statusLabel->setText(tr("Status: Running, connected to port %1.")
++ .arg(m_serialPortComboBox->currentText()));
++
++ m_serial.write(m_requestLineEdit->text().toUtf8());
++ m_timer.start(m_waitResponseSpinBox->value());
++ }
++
++ void Dialog::readResponse()
++ {
++ m_response.append(m_serial.readAll());
++ }
++
++ void Dialog::processTimeout()
++ {
++ setControlsEnabled(true);
++ m_trafficLabel->setText(tr("Traffic, transaction #%1:"
++ "\n\r-request: %2"
++ "\n\r-response: %3")
++ .arg(++m_transactionCount)
++ .arg(m_requestLineEdit->text())
++ .arg(QString::fromUtf8(m_response)));
++ m_response.clear();
++ }
++
++ void Dialog::processError(const QString &error)
++ {
++ setControlsEnabled(true);
++ m_statusLabel->setText(tr("Status: Not running, %1.").arg(error));
++ m_trafficLabel->setText(tr("No traffic."));
++ }
++
++ void Dialog::setControlsEnabled(bool enable)
++ {
++ m_runButton->setEnabled(enable);
++ m_serialPortComboBox->setEnabled(enable);
++ m_waitResponseSpinBox->setEnabled(enable);
++ m_requestLineEdit->setEnabled(enable);
++ }