settingsdialog.cpp Example File

    /****************************************************************************
    **
    ** Copyright (C) 2012 Denis Shienkov <scapig@yandex.ru>
    ** Copyright (C) 2012 Laszlo Papp <lpapp@kde.org>
    ** Contact: http://www.qt-project.org/
    **
    ** This file is part of the QtSerialPort module of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:LGPL$
    ** GNU Lesser General Public License Usage
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    ** License version 2.1 as published by the Free Software Foundation and
    ** appearing in the file LICENSE.LGPL included in the packaging of this
    ** file. Please review the following information to ensure the GNU Lesser
    ** General Public License version 2.1 requirements will be met:
    ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    **
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    ** rights. These rights are described in the Nokia Qt LGPL Exception
    ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
    **
    ** GNU General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU General
    ** Public License version 3.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of this
    ** file. Please review the following information to ensure the GNU General
    ** Public License version 3.0 requirements will be met:
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    ** Alternatively, this file may be used in accordance with the terms and
    ** conditions contained in a signed written agreement between you and Nokia.
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    ****************************************************************************/

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

    #include <QtAddOnSerialPort/serialportinfo.h>
    #include <QIntValidator>
    #include <QLineEdit>

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

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

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

        connect(ui->applyButton, SIGNAL(clicked()),
                this, SLOT(apply()));
        connect(ui->portsBox, SIGNAL(currentIndexChanged(int)),
                this, SLOT(showPortInfo(int)));
        connect(ui->rateBox, SIGNAL(currentIndexChanged(int)),
                this, SLOT(checkCustomRatePolicy(int)));

        fillPortsParameters();
        fillPortsInfo();

        updateSettings();
    }

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

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

    void SettingsDialog::showPortInfo(int idx)
    {
        if (idx != -1) {
            QStringList list = ui->portsBox->itemData(idx).toStringList();
            ui->descriptionLabel->setText(tr("Description: %1").arg(list.at(1)));
            ui->manufacturerLabel->setText(tr("Manufacturer: %1").arg(list.at(2)));
            ui->locationLabel->setText(tr("Location: %1").arg(list.at(3)));
            ui->vidLabel->setText(tr("Vendor Identifier: %1").arg(list.at(4)));
            ui->pidLabel->setText(tr("Product Identifier: %1").arg(list.at(5)));
        }
    }

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

    void SettingsDialog::checkCustomRatePolicy(int idx)
    {
        ui->rateBox->setEditable(idx == 4);
        if (idx == 4) {
            ui->rateBox->clearEditText();
            QLineEdit *edit = ui->rateBox->lineEdit();
            edit->setValidator(intValidator);
        }
    }

    void SettingsDialog::fillPortsParameters()
    {
        // fill baud rate (is not the entire list of available values,
        // desired values??, add your independently)
        ui->rateBox->addItem(QLatin1String("9600"), SerialPort::Rate9600);
        ui->rateBox->addItem(QLatin1String("19200"), SerialPort::Rate19200);
        ui->rateBox->addItem(QLatin1String("38400"), SerialPort::Rate38400);
        ui->rateBox->addItem(QLatin1String("115200"), SerialPort::Rate115200);
        ui->rateBox->addItem(QLatin1String("Custom"));

        // fill data bits
        ui->dataBitsBox->addItem(QLatin1String("5"), SerialPort::Data5);
        ui->dataBitsBox->addItem(QLatin1String("6"), SerialPort::Data6);
        ui->dataBitsBox->addItem(QLatin1String("7"), SerialPort::Data7);
        ui->dataBitsBox->addItem(QLatin1String("8"), SerialPort::Data8);
        ui->dataBitsBox->setCurrentIndex(3);

        // fill parity
        ui->parityBox->addItem(QLatin1String("None"), SerialPort::NoParity);
        ui->parityBox->addItem(QLatin1String("Even"), SerialPort::EvenParity);
        ui->parityBox->addItem(QLatin1String("Odd"), SerialPort::OddParity);
        ui->parityBox->addItem(QLatin1String("Mark"), SerialPort::MarkParity);
        ui->parityBox->addItem(QLatin1String("Space"), SerialPort::SpaceParity);

        // fill stop bits
        ui->stopBitsBox->addItem(QLatin1String("1"), SerialPort::OneStop);
    #ifdef Q_OS_WIN
        ui->stopBitsBox->addItem(QLatin1String("1.5"), SerialPort::OneAndHalfStop);
    #endif
        ui->stopBitsBox->addItem(QLatin1String("2"), SerialPort::TwoStop);

        // fill flow control
        ui->flowControlBox->addItem(QLatin1String("None"), SerialPort::NoFlowControl);
        ui->flowControlBox->addItem(QLatin1String("RTS/CTS"), SerialPort::HardwareControl);
        ui->flowControlBox->addItem(QLatin1String("XON/XOFF"), SerialPort::SoftwareControl);
    }

    void SettingsDialog::fillPortsInfo()
    {
        ui->portsBox->clear();
        foreach (const SerialPortInfo &info, SerialPortInfo::availablePorts()) {
            QStringList list;
            list << info.portName() << info.description()
                 << info.manufacturer() << info.systemLocation()
                 << info.vendorIdentifier() << info.productIdentifier();

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

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

        // Rate
        if (ui->rateBox->currentIndex() == 4) {
            // custom rate
            currentSettings.rate = ui->rateBox->currentText().toInt();
        } else {
            // standard rate
            currentSettings.rate = static_cast<SerialPort::Rate>(
                        ui->rateBox->itemData(ui->rateBox->currentIndex()).toInt());
        }
        currentSettings.stringRate = QString::number(currentSettings.rate);

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

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

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

        // Flow control
        currentSettings.flowControl = static_cast<SerialPort::FlowControl>(
                    ui->flowControlBox->itemData(ui->flowControlBox->currentIndex()).toInt());
        currentSettings.stringFlowControl = ui->flowControlBox->currentText();
    }