settingsdialog.cpp Example File | Qt Serial Port 5.5

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- settingsdialog.cpp Example File
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# settingsdialog.cpp Example File

terminal/settingsdialog.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2012 Denis Shienkov <denis.shienkov@gmail.com>
    ** Copyright (C) 2012 Laszlo Papp <lpapp@kde.org>
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the QtSerialPort module of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
    ** Commercial License Usage
    ** Licensees holding valid commercial Qt licenses may use this file in
    ** accordance with the commercial license agreement provided with the
    ** Software or, alternatively, in accordance with the terms contained in
    ** a written agreement between you and The Qt Company. For licensing terms
    ** and conditions see http://www.qt.io/terms-conditions. For further
    ** information use the contact form at http://www.qt.io/contact-us.
    **
    ** GNU Lesser General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU Lesser
    ** General Public License version 2.1 or version 3 as published by the Free
    ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
    ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
    ** following information to ensure the GNU Lesser General Public License
    ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
    ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    **
    ** As a special exception, The Qt Company gives you certain additional
    ** rights. These rights are described in The Qt Company LGPL Exception
    ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    #include "settingsdialog.h"
    #include "ui_settingsdialog.h"

    #include <QtSerialPort/QSerialPortInfo>
    #include <QIntValidator>
    #include <QLineEdit>

    QT_USE_NAMESPACE

    static const char blankString[] = QT_TRANSLATE_NOOP("SettingsDialog", "N/A");

    SettingsDialog::SettingsDialog(QWidget *parent) :
        QDialog(parent),
        ui(new Ui::SettingsDialog)
    {
        ui->setupUi(this);

        intValidator = new QIntValidator(0, 4000000, this);

        ui->baudRateBox->setInsertPolicy(QComboBox::NoInsert);

        connect(ui->applyButton, SIGNAL(clicked()),
                this, SLOT(apply()));
        connect(ui->serialPortInfoListBox, SIGNAL(currentIndexChanged(int)),
                this, SLOT(showPortInfo(int)));
        connect(ui->baudRateBox, SIGNAL(currentIndexChanged(int)),
                this, SLOT(checkCustomBaudRatePolicy(int)));
        connect(ui->serialPortInfoListBox, SIGNAL(currentIndexChanged(int)),
                this, SLOT(checkCustomDevicePathPolicy(int)));

        fillPortsParameters();
        fillPortsInfo();

        updateSettings();
    }

    SettingsDialog::~SettingsDialog()
    {
        delete ui;
    }

    SettingsDialog::Settings SettingsDialog::settings() const
    {
        return currentSettings;
    }

    void SettingsDialog::showPortInfo(int idx)
    {
        if (idx == -1)
            return;

        QStringList list = ui->serialPortInfoListBox->itemData(idx).toStringList();
        ui->descriptionLabel->setText(tr("Description: %1").arg(list.count() > 1 ? list.at(1) : tr(blankString)));
        ui->manufacturerLabel->setText(tr("Manufacturer: %1").arg(list.count() > 2 ? list.at(2) : tr(blankString)));
        ui->serialNumberLabel->setText(tr("Serial number: %1").arg(list.count() > 3 ? list.at(3) : tr(blankString)));
        ui->locationLabel->setText(tr("Location: %1").arg(list.count() > 4 ? list.at(4) : tr(blankString)));
        ui->vidLabel->setText(tr("Vendor Identifier: %1").arg(list.count() > 5 ? list.at(5) : tr(blankString)));
        ui->pidLabel->setText(tr("Product Identifier: %1").arg(list.count() > 6 ? list.at(6) : tr(blankString)));
    }

    void SettingsDialog::apply()
    {
        updateSettings();
        hide();
    }

    void SettingsDialog::checkCustomBaudRatePolicy(int idx)
    {
        bool isCustomBaudRate = !ui->baudRateBox->itemData(idx).isValid();
        ui->baudRateBox->setEditable(isCustomBaudRate);
        if (isCustomBaudRate) {
            ui->baudRateBox->clearEditText();
            QLineEdit *edit = ui->baudRateBox->lineEdit();
            edit->setValidator(intValidator);
        }
    }

    void SettingsDialog::checkCustomDevicePathPolicy(int idx)
    {
        bool isCustomPath = !ui->serialPortInfoListBox->itemData(idx).isValid();
        ui->serialPortInfoListBox->setEditable(isCustomPath);
        if (isCustomPath)
            ui->serialPortInfoListBox->clearEditText();
    }

    void SettingsDialog::fillPortsParameters()
    {
        ui->baudRateBox->addItem(QStringLiteral("9600"), QSerialPort::Baud9600);
        ui->baudRateBox->addItem(QStringLiteral("19200"), QSerialPort::Baud19200);
        ui->baudRateBox->addItem(QStringLiteral("38400"), QSerialPort::Baud38400);
        ui->baudRateBox->addItem(QStringLiteral("115200"), QSerialPort::Baud115200);
        ui->baudRateBox->addItem(tr("Custom"));

        ui->dataBitsBox->addItem(QStringLiteral("5"), QSerialPort::Data5);
        ui->dataBitsBox->addItem(QStringLiteral("6"), QSerialPort::Data6);
        ui->dataBitsBox->addItem(QStringLiteral("7"), QSerialPort::Data7);
        ui->dataBitsBox->addItem(QStringLiteral("8"), QSerialPort::Data8);
        ui->dataBitsBox->setCurrentIndex(3);

        ui->parityBox->addItem(tr("None"), QSerialPort::NoParity);
        ui->parityBox->addItem(tr("Even"), QSerialPort::EvenParity);
        ui->parityBox->addItem(tr("Odd"), QSerialPort::OddParity);
        ui->parityBox->addItem(tr("Mark"), QSerialPort::MarkParity);
        ui->parityBox->addItem(tr("Space"), QSerialPort::SpaceParity);

        ui->stopBitsBox->addItem(QStringLiteral("1"), QSerialPort::OneStop);
    #ifdef Q_OS_WIN
        ui->stopBitsBox->addItem(tr("1.5"), QSerialPort::OneAndHalfStop);
    #endif
        ui->stopBitsBox->addItem(QStringLiteral("2"), QSerialPort::TwoStop);

        ui->flowControlBox->addItem(tr("None"), QSerialPort::NoFlowControl);
        ui->flowControlBox->addItem(tr("RTS/CTS"), QSerialPort::HardwareControl);
        ui->flowControlBox->addItem(tr("XON/XOFF"), QSerialPort::SoftwareControl);
    }

    void SettingsDialog::fillPortsInfo()
    {
        ui->serialPortInfoListBox->clear();
        QString description;
        QString manufacturer;
        QString serialNumber;
        foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) {
            QStringList list;
            description = info.description();
            manufacturer = info.manufacturer();
            serialNumber = info.serialNumber();
            list << info.portName()
                 << (!description.isEmpty() ? description : blankString)
                 << (!manufacturer.isEmpty() ? manufacturer : blankString)
                 << (!serialNumber.isEmpty() ? serialNumber : blankString)
                 << info.systemLocation()
                 << (info.vendorIdentifier() ? QString::number(info.vendorIdentifier(), 16) : blankString)
                 << (info.productIdentifier() ? QString::number(info.productIdentifier(), 16) : blankString);

            ui->serialPortInfoListBox->addItem(list.first(), list);
        }

        ui->serialPortInfoListBox->addItem(tr("Custom"));
    }

    void SettingsDialog::updateSettings()
    {
        currentSettings.name = ui->serialPortInfoListBox->currentText();

        if (ui->baudRateBox->currentIndex() == 4) {
            currentSettings.baudRate = ui->baudRateBox->currentText().toInt();
        } else {
            currentSettings.baudRate = static_cast<QSerialPort::BaudRate>(
                        ui->baudRateBox->itemData(ui->baudRateBox->currentIndex()).toInt());
        }
        currentSettings.stringBaudRate = QString::number(currentSettings.baudRate);

        currentSettings.dataBits = static_cast<QSerialPort::DataBits>(
                    ui->dataBitsBox->itemData(ui->dataBitsBox->currentIndex()).toInt());
        currentSettings.stringDataBits = ui->dataBitsBox->currentText();

        currentSettings.parity = static_cast<QSerialPort::Parity>(
                    ui->parityBox->itemData(ui->parityBox->currentIndex()).toInt());
        currentSettings.stringParity = ui->parityBox->currentText();

        currentSettings.stopBits = static_cast<QSerialPort::StopBits>(
                    ui->stopBitsBox->itemData(ui->stopBitsBox->currentIndex()).toInt());
        currentSettings.stringStopBits = ui->stopBitsBox->currentText();

        currentSettings.flowControl = static_cast<QSerialPort::FlowControl>(
                    ui->flowControlBox->itemData(ui->flowControlBox->currentIndex()).toInt());
        currentSettings.stringFlowControl = ui->flowControlBox->currentText();

        currentSettings.localEchoEnabled = ui->localEchoCheckBox->isChecked();
    }