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Diffstat (limited to 'examples/master/dialog.cpp')
| -rw-r--r-- | examples/master/dialog.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/examples/master/dialog.cpp b/examples/master/dialog.cpp new file mode 100644 index 0000000..766c7dd --- /dev/null +++ b/examples/master/dialog.cpp @@ -0,0 +1,178 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Denis Shienkov <scapig@yandex.ru> +** 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 "dialog.h" + +#include <QLabel> +#include <QLineEdit> +#include <QComboBox> +#include <QSpinBox> +#include <QPushButton> +#include <QGridLayout> + +#include <QtAddOnSerialPort/serialportinfo.h> + +QT_USE_NAMESPACE_SERIALPORT + +Dialog::Dialog(QWidget *parent) + : QDialog(parent) + , transactionCount(0) + , serialPortLabel(new QLabel(tr("Serial port:"))) + , serialPortComboBox(new QComboBox()) + , waitResponseLabel(new QLabel(tr("Wait response, msec:"))) + , waitResponseSpinBox(new QSpinBox()) + , requestLabel(new QLabel(tr("Request:"))) + , requestLineEdit(new QLineEdit(tr("Who are you?"))) + , trafficLabel(new QLabel(tr("No traffic."))) + , statusLabel(new QLabel(tr("Status: Not running."))) + , runButton(new QPushButton(tr("Start"))) +{ + foreach (const SerialPortInfo &info, SerialPortInfo::availablePorts()) + serialPortComboBox->addItem(info.portName()); + + waitResponseSpinBox->setRange(0, 10000); + waitResponseSpinBox->setValue(100); + + QGridLayout *mainLayout = new QGridLayout; + mainLayout->addWidget(serialPortLabel, 0, 0); + mainLayout->addWidget(serialPortComboBox, 0, 1); + mainLayout->addWidget(waitResponseLabel, 1, 0); + mainLayout->addWidget(waitResponseSpinBox, 1, 1); + mainLayout->addWidget(runButton, 0, 2, 2, 1); + mainLayout->addWidget(requestLabel, 2, 0); + mainLayout->addWidget(requestLineEdit, 2, 1, 1, 3); + mainLayout->addWidget(trafficLabel, 3, 0, 1, 4); + mainLayout->addWidget(statusLabel, 4, 0, 1, 5); + setLayout(mainLayout); + + setWindowTitle(tr("Master")); + serialPortComboBox->setFocus(); + + timer.setSingleShot(true); + + connect(runButton, SIGNAL(clicked()), + this, SLOT(sendRequest())); + connect(&serial, SIGNAL(readyRead()), + this, SLOT(readResponse())); + connect(&timer, SIGNAL(timeout()), + this, SLOT(processTimeout())); +} + +void Dialog::sendRequest() +{ + if (serial.portName() != serialPortComboBox->currentText()) { + serial.close(); + serial.setPort(serialPortComboBox->currentText()); + + if (!serial.open(QIODevice::ReadWrite)) { + processError(tr("Can't open %1, error code %2") + .arg(serial.portName()).arg(serial.error())); + return; + } + + if (!serial.setRate(9600)) { + processError(tr("Can't set rate 9600 baud to port %1, error code %2") + .arg(serial.portName()).arg(serial.error())); + return; + } + + if (!serial.setDataBits(SerialPort::Data8)) { + processError(tr("Can't set 8 data bits to port %1, error code %2") + .arg(serial.portName()).arg(serial.error())); + return; + } + + if (!serial.setParity(SerialPort::NoParity)) { + processError(tr("Can't set no patity to port %1, error code %2") + .arg(serial.portName()).arg(serial.error())); + return; + } + + if (!serial.setStopBits(SerialPort::OneStop)) { + processError(tr("Can't set 1 stop bit to port %1, error code %2") + .arg(serial.portName()).arg(serial.error())); + return; + } + + if (!serial.setFlowControl(SerialPort::NoFlowControl)) { + processError(tr("Can't set no flow control to port %1, error code %2") + .arg(serial.portName()).arg(serial.error())); + return; + } + } + + setControlsEnabled(false); + statusLabel->setText(tr("Status: Running, connected to port %1.") + .arg(serialPortComboBox->currentText())); + + serial.write(requestLineEdit->text().toLocal8Bit()); + timer.start(waitResponseSpinBox->value()); +} + +void Dialog::readResponse() +{ + response.append(serial.readAll()); +} + +void Dialog::processTimeout() +{ + setControlsEnabled(true); + trafficLabel->setText(tr("Traffic, transaction #%1:" + "\n\r-request: %2" + "\n\r-response: %3") + .arg(++transactionCount).arg(requestLineEdit->text()).arg(QString(response))); + response.clear(); +} + +void Dialog::processError(const QString &error) +{ + setControlsEnabled(true); + statusLabel->setText(tr("Status: Not running, %1.").arg(error)); + trafficLabel->setText(tr("No traffic.")); +} + +void Dialog::setControlsEnabled(bool enable) +{ + runButton->setEnabled(enable); + serialPortComboBox->setEnabled(enable); + waitResponseSpinBox->setEnabled(enable); + requestLineEdit->setEnabled(enable); +} |