dialog.cpp Example File

  /****************************************************************************
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  ** Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
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  #include "dialog.h"

  #include <QLabel>
  #include <QLineEdit>
  #include <QComboBox>
  #include <QSpinBox>
  #include <QPushButton>
  #include <QGridLayout>

  #include <QtSerialPort/QSerialPortInfo>

  QT_USE_NAMESPACE

  Dialog::Dialog(QWidget *parent)
      : QDialog(parent)
      , transactionCount(0)
      , serialPortLabel(new QLabel(tr("Serial port:")))
      , serialPortComboBox(new QComboBox())
      , waitRequestLabel(new QLabel(tr("Wait request, msec:")))
      , waitRequestSpinBox(new QSpinBox())
      , responseLabel(new QLabel(tr("Response:")))
      , responseLineEdit(new QLineEdit(tr("Hello, I'm Slave.")))
      , trafficLabel(new QLabel(tr("No traffic.")))
      , statusLabel(new QLabel(tr("Status: Not running.")))
      , runButton(new QPushButton(tr("Start")))
  {
      waitRequestSpinBox->setRange(0, 10000);
      waitRequestSpinBox->setValue(10000);

      const auto infos = QSerialPortInfo::availablePorts();
      for (const QSerialPortInfo &info : infos)
          serialPortComboBox->addItem(info.portName());

      auto mainLayout = new QGridLayout;
      mainLayout->addWidget(serialPortLabel, 0, 0);
      mainLayout->addWidget(serialPortComboBox, 0, 1);
      mainLayout->addWidget(waitRequestLabel, 1, 0);
      mainLayout->addWidget(waitRequestSpinBox, 1, 1);
      mainLayout->addWidget(runButton, 0, 2, 2, 1);
      mainLayout->addWidget(responseLabel, 2, 0);
      mainLayout->addWidget(responseLineEdit, 2, 1, 1, 3);
      mainLayout->addWidget(trafficLabel, 3, 0, 1, 4);
      mainLayout->addWidget(statusLabel, 4, 0, 1, 5);
      setLayout(mainLayout);

      setWindowTitle(tr("Blocking Slave"));
      serialPortComboBox->setFocus();

      connect(runButton, &QPushButton::clicked, this, &Dialog::startSlave);
      connect(&thread, &SlaveThread::request, this,&Dialog::showRequest);
      connect(&thread, &SlaveThread::error, this, &Dialog::processError);
      connect(&thread, &SlaveThread::timeout, this, &Dialog::processTimeout);

      connect(serialPortComboBox, static_cast<void (QComboBox::*)(const QString &)>(&QComboBox::currentIndexChanged),
              this, &Dialog::activateRunButton);
      connect(waitRequestSpinBox, static_cast<void (QSpinBox::*)(const QString &)>(&QSpinBox::valueChanged),
              this, &Dialog::activateRunButton);
      connect(responseLineEdit, &QLineEdit::textChanged, this, &Dialog::activateRunButton);
  }

  void Dialog::startSlave()
  {
      runButton->setEnabled(false);
      statusLabel->setText(tr("Status: Running, connected to port %1.")
                           .arg(serialPortComboBox->currentText()));
      thread.startSlave(serialPortComboBox->currentText(),
                        waitRequestSpinBox->value(),
                        responseLineEdit->text());
  }

  void Dialog::showRequest(const QString &s)
  {
      trafficLabel->setText(tr("Traffic, transaction #%1:"
                               "\n\r-request: %2"
                               "\n\r-response: %3")
                            .arg(++transactionCount).arg(s).arg(responseLineEdit->text()));
  }

  void Dialog::processError(const QString &s)
  {
      activateRunButton();
      statusLabel->setText(tr("Status: Not running, %1.").arg(s));
      trafficLabel->setText(tr("No traffic."));
  }

  void Dialog::processTimeout(const QString &s)
  {
      statusLabel->setText(tr("Status: Running, %1.").arg(s));
      trafficLabel->setText(tr("No traffic."));
  }
  void Dialog::activateRunButton()
  {
      runButton->setEnabled(true);
  }