mainwindow.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
    ** This file may be used under the terms of the GNU Lesser General Public
    ** 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.
    **
    ** In addition, as a special exception, Nokia gives you certain additional
    ** 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:
    ** http://www.gnu.org/copyleft/gpl.html.
    **
    ** Other Usage
    ** Alternatively, this file may be used in accordance with the terms and
    ** conditions contained in a signed written agreement between you and Nokia.
    **
    **
    **
    **
    **
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    #include "mainwindow.h"
    #include "ui_mainwindow.h"
    #include "console.h"
    #include "settingsdialog.h"

    #include <QMessageBox>
    #include <QtAddOnSerialPort/serialport.h>

    MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow)
    {
        ui->setupUi(this);
        console = new Console;
        console->setEnabled(false);
        setCentralWidget(console);
        serial = new SerialPort(this);
        settings = new SettingsDialog;

        ui->actionConnect->setEnabled(true);
        ui->actionDisconnect->setEnabled(false);
        ui->actionQuit->setEnabled(true);
        ui->actionConfigure->setEnabled(true);

        initActionsConnections();
        connect(serial, SIGNAL(readyRead()), this, SLOT(readData()));
        connect(console, SIGNAL(getData(QByteArray)), this, SLOT(writeData(QByteArray)));
    }

    MainWindow::~MainWindow()
    {
        delete settings;
        delete ui;
    }

    void MainWindow::openSerialPort()
    {
        SettingsDialog::Settings p = settings->settings();
        serial->setPort(p.name);
        if (serial->open(QIODevice::ReadWrite)) {
            if (serial->setRate(p.rate)
                    && serial->setDataBits(p.dataBits)
                    && serial->setParity(p.parity)
                    && serial->setStopBits(p.stopBits)
                    && serial->setFlowControl(p.flowControl)) {

                console->setEnabled(true);
                ui->actionConnect->setEnabled(false);
                ui->actionDisconnect->setEnabled(true);
                ui->actionConfigure->setEnabled(false);
                ui->statusBar->showMessage(tr("Connected to %1 : %2, %3, %4, %5, %6")
                                           .arg(p.name).arg(p.stringRate).arg(p.stringDataBits)
                                           .arg(p.stringParity).arg(p.stringStopBits).arg(p.stringFlowControl));

            } else {
                serial->close();
                QMessageBox::critical(this, tr("Error"),
                                      tr("Can't configure the serial port: %1,\n"
                                         "error code: %2")
                                      .arg(p.name).arg(serial->error()));

                ui->statusBar->showMessage(tr("Open error"));
            }
        } else {
            QMessageBox::critical(this, tr("Error"),
                                  tr("Can't opened the serial port: %1,\n"
                                     "error code: %2")
                                  .arg(p.name).arg(serial->error()));

            ui->statusBar->showMessage(tr("Configure error"));
        }
    }

    void MainWindow::closeSerialPort()
    {
        serial->close();
        console->setEnabled(false);
        ui->actionConnect->setEnabled(true);
        ui->actionDisconnect->setEnabled(false);
        ui->actionConfigure->setEnabled(true);
        ui->statusBar->showMessage(tr("Disconnected"));
    }

    void MainWindow::about()
    {
        QMessageBox::about(this, tr("About Simple Terminal"),
                           tr("The <b>Simple Terminal</b> example demonstrates how to "
                              "use the QtSerialPort module in modern GUI applications "
                              "using Qt, with a menu bar, toolbars, and a status bar."));
    }

    void MainWindow::writeData(const QByteArray &data)
    {
        serial->write(data);
    }

    void MainWindow::readData()
    {
        QByteArray data = serial->readAll();
        console->putData(data);
    }

    void MainWindow::initActionsConnections()
    {
        connect(ui->actionConnect, SIGNAL(triggered()), this, SLOT(openSerialPort()));
        connect(ui->actionDisconnect, SIGNAL(triggered()), this, SLOT(closeSerialPort()));
        connect(ui->actionQuit, SIGNAL(triggered()), this, SLOT(close()));
        connect(ui->actionConfigure, SIGNAL(triggered()), settings, SLOT(show()));
        connect(ui->actionClear, SIGNAL(triggered()), console, SLOT(clear()));
        connect(ui->actionAbout, SIGNAL(triggered()), this, SLOT(about()));
        connect(ui->actionAboutQt, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
    }