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serialportwidget.cpp
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serialportwidget.cpp
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/*
* Copyright (C) 2012 Jorge Aparicio <jorge.aparicio.r@gmail.com>
*
* This file is part of qSerialTerm.
*
* qSerialTerm is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
* qSerialTerm is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with qSerialTerm. If not, see <http://www.gnu.org/licenses/>.
*/
#include "serialportwidget.h"
#include "ui_serialportwidget.h"
#include <QMessageBox>
#define REFRESH_RATE_MS 40
QT_USE_NAMESPACE_SERIALPORT
Q_DECLARE_METATYPE(SerialPort::DataBits)
Q_DECLARE_METATYPE(SerialPort::StopBits)
Q_DECLARE_METATYPE(SerialPort::Parity)
Q_DECLARE_METATYPE(SerialPort::FlowControl)
SerialPortWidget::SerialPortWidget(QWidget *parent) :
QWidget(parent),
ui(new Ui::SerialPortWidget),
serialPort(0),
refreshRateTimer(0),
isThereCommunication(false)
{
ui->setupUi(this);
ui->dataBitsComboBox->addItem(QLatin1String("5"),
SerialPort::Data5);
ui->dataBitsComboBox->addItem(QLatin1String("6"),
SerialPort::Data6);
ui->dataBitsComboBox->addItem(QLatin1String("7"),
SerialPort::Data7);
ui->dataBitsComboBox->addItem(QLatin1String("8"),
SerialPort::Data8);
ui->dataBitsComboBox->setCurrentIndex(-1);
ui->stopBitsComboBox->addItem(QLatin1String("1"),
SerialPort::OneStop);
ui->stopBitsComboBox->addItem(QLatin1String("1.5"),
SerialPort::OneAndHalfStop);
ui->stopBitsComboBox->addItem(QLatin1String("2"),
SerialPort::TwoStop);
ui->stopBitsComboBox->setCurrentIndex(-1);
ui->parityComboBox->addItem(QLatin1String("No"),
SerialPort::NoParity);
ui->parityComboBox->addItem(QLatin1String("Even"),
SerialPort::EvenParity);
ui->parityComboBox->addItem(QLatin1String("Odd"),
SerialPort::OddParity);
ui->parityComboBox->addItem(QLatin1String("Space"),
SerialPort::SpaceParity);
ui->parityComboBox->addItem(QLatin1String("Mark"),
SerialPort::MarkParity);
ui->parityComboBox->setCurrentIndex(-1);
ui->flowControlComboBox->addItem(QLatin1String("No"),
SerialPort::NoFlowControl);
ui->flowControlComboBox->addItem(QLatin1String("Hardware"),
SerialPort::HardwareControl);
ui->flowControlComboBox->addItem(QLatin1String("Software"),
SerialPort::SoftwareControl);
ui->flowControlComboBox->setCurrentIndex(-1);
}
SerialPortWidget::~SerialPortWidget()
{
delete ui;
}
void SerialPortWidget::write(QByteArray data)
{
if (refreshRateTimer) // There is ongoing communication
serialPort->write(data);
}
void SerialPortWidget::on_getPortsPushButton_clicked()
{
serialPortInfoList = SerialPortInfo::availablePorts();
ui->portComboBox->clear();
foreach(SerialPortInfo entry, serialPortInfoList)
ui->portComboBox->addItem(entry.portName());
}
void SerialPortWidget::on_openPortPushButton_clicked()
{
if (serialPort) {
if (refreshRateTimer) // Communication ongoing
on_startCommunicationPushButton_clicked();
serialPort->close();
delete serialPort;
serialPort = 0;
ui->portStatusLabel->setText(QLatin1String("<font color=red>"
"Closed"
"</font>"));
ui->openPortPushButton->setText(QLatin1String("Open"));
ui->portComboBox->setEnabled(true);
ui->getPortsPushButton->setEnabled(true);
disableCommunicationSettings();
ui->baudRateComboBox->setCurrentIndex(-1);
ui->dataBitsComboBox->setCurrentIndex(-1);
ui->stopBitsComboBox->setCurrentIndex(-1);
ui->parityComboBox->setCurrentIndex(-1);
ui->flowControlComboBox->setCurrentIndex(-1);
} else {
serialPort = new SerialPort(ui->portComboBox->currentText());
if (serialPort->open(QIODevice::ReadWrite)) {
enableCommunicationSettings();
ui->portStatusLabel->setText(QLatin1String("<font color=green>"
"Open"
"</font>"));
ui->openPortPushButton->setText(QLatin1String("Close"));
ui->portComboBox->setDisabled(true);
ui->getPortsPushButton->setDisabled(true);
} else {
QMessageBox::warning(this,
QLatin1String("Port error"),
QLatin1String("Couldn't open the requested port"));
delete serialPort;
serialPort = 0;
}
}
}
void SerialPortWidget::on_startCommunicationPushButton_clicked()
{
if (refreshRateTimer) { // There is ongoing communication
enableCommunicationSettings();
ui->startCommunicationPushButton->setText(QLatin1String("Start"));
ui->communicationStatusLabel->setText(QLatin1String("<font color=red>"
"No communication"
"</font>"));
delete refreshRateTimer;
refreshRateTimer = 0;
emit communicationStart(false);
} else {
disableCommunicationSettings();
ui->startCommunicationPushButton->setText(QLatin1String("Stop"));
ui->communicationStatusLabel->setText(QLatin1String("<font color=green>"
"Ongoing"
"</font>"));
refreshRateTimer = new QTimer(this);
connect(refreshRateTimer, SIGNAL(timeout()),
this, SLOT(on_refreshRateTimer_timeout()));
refreshRateTimer->start(REFRESH_RATE_MS);
emit communicationStart(true);
}
}
void SerialPortWidget::on_portComboBox_currentIndexChanged(int index)
{
if (index == -1) {
ui->openPortPushButton->setDisabled(true);
ui->baudRateComboBox->clear();
ui->pidLabel->setText(QLatin1String("-"));
ui->vidLabel->setText(QLatin1String("-"));
ui->portStatusLabel->setText(QLatin1String("<font color=red>"
"No port selected"
"</font>"));
} else {
ui->openPortPushButton->setEnabled(true);
QList<qint32> baudRateList = serialPortInfoList[index].standardRates();
ui->baudRateComboBox->clear();
foreach (qint32 baudRate, baudRateList)
ui->baudRateComboBox->addItem(QString::number(baudRate), baudRate);
ui->baudRateComboBox->setCurrentIndex(-1);
QString vid = serialPortInfoList[index].vendorIdentifier();
if (vid.isEmpty())
ui->vidLabel->setText(QLatin1String("-"));
else
ui->vidLabel->setText(QLatin1String("0x") + vid);
QString pid = serialPortInfoList[index].productIdentifier();
if (pid.isEmpty())
ui->pidLabel->setText(QLatin1String("-"));
else
ui->pidLabel->setText(QLatin1String("0x") + pid);
ui->portStatusLabel->setText(QLatin1String("<font color=red>"
"Closed"
"</font>"));
}
}
void SerialPortWidget::on_baudRateComboBox_currentIndexChanged(int index)
{
if (index != -1 && serialPort != 0) {
if(serialPort->setRate(ui->baudRateComboBox->itemData(index).value<int>())) {
validateCommunicationSettings();
return;
} else {
QMessageBox::warning(this,
QLatin1String("Configuration error"),
QLatin1String("Couldn't change the baud rate."));
ui->baudRateComboBox->setCurrentIndex(-1);
}
}
ui->startCommunicationPushButton->setDisabled(true);
}
void SerialPortWidget::on_dataBitsComboBox_currentIndexChanged(int index)
{
if (index != -1 && serialPort != 0) {
if(serialPort->setDataBits(ui->dataBitsComboBox->itemData(index).value<SerialPort::DataBits>())) {
validateCommunicationSettings();
return;
} else {
QMessageBox::warning(this,
QLatin1String("Configuration error"),
QLatin1String("Couldn't change the numbers of data bits."));
ui->dataBitsComboBox->setCurrentIndex(-1);
}
}
ui->startCommunicationPushButton->setDisabled(true);
}
void SerialPortWidget::on_stopBitsComboBox_currentIndexChanged(int index)
{
if (index != -1 && serialPort != 0) {
if(serialPort->setStopBits(ui->stopBitsComboBox->itemData(index).value<SerialPort::StopBits>())) {
validateCommunicationSettings();
return;
} else {
QMessageBox::warning(this,
QLatin1String("Configuration error"),
QLatin1String("Couldn't change the numbers of stop bits."));
ui->stopBitsComboBox->setCurrentIndex(-1);
}
}
ui->startCommunicationPushButton->setDisabled(true);
}
void SerialPortWidget::on_parityComboBox_currentIndexChanged(int index)
{
if (index != -1 && serialPort != 0) {
if(serialPort->setParity(ui->parityComboBox->itemData(index).value<SerialPort::Parity>())) {
validateCommunicationSettings();
return;
} else {
QMessageBox::warning(this,
QLatin1String("Configuration error"),
QLatin1String("Couldn't change the parity."));
ui->parityComboBox->setCurrentIndex(-1);
}
}
ui->startCommunicationPushButton->setDisabled(true);
}
void SerialPortWidget::on_flowControlComboBox_currentIndexChanged(int index)
{
if (index != -1 && serialPort != 0) {
if(serialPort->setFlowControl(ui->flowControlComboBox->itemData(index).value<SerialPort::FlowControl>())) {
validateCommunicationSettings();
return;
} else {
QMessageBox::warning(this,
QLatin1String("Configuration error"),
QLatin1String("Couldn't change the flow control."));
ui->flowControlComboBox->setCurrentIndex(-1);
}
}
ui->startCommunicationPushButton->setDisabled(true);
}
void SerialPortWidget::on_refreshRateTimer_timeout()
{
emit read(serialPort->readAll());
}
void SerialPortWidget::enableCommunicationSettings()
{
ui->baudRateComboBox->setEnabled(true);
ui->dataBitsComboBox->setEnabled(true);
ui->stopBitsComboBox->setEnabled(true);
ui->parityComboBox->setEnabled(true);
ui->flowControlComboBox->setEnabled(true);
}
void SerialPortWidget::disableCommunicationSettings()
{
ui->baudRateComboBox->setDisabled(true);
ui->dataBitsComboBox->setDisabled(true);
ui->stopBitsComboBox->setDisabled(true);
ui->parityComboBox->setDisabled(true);
ui->flowControlComboBox->setDisabled(true);
}
void SerialPortWidget::validateCommunicationSettings(void)
{
if (serialPort->isOpen() &&
(ui->baudRateComboBox->currentIndex() != -1) &&
(ui->dataBitsComboBox->currentIndex() != -1) &&
(ui->stopBitsComboBox->currentIndex() != -1) &&
(ui->parityComboBox->currentIndex() != -1) &&
(ui->flowControlComboBox->currentIndex() != -1)) {
ui->startCommunicationPushButton->setEnabled(true);
} else {
ui->startCommunicationPushButton->setDisabled(true);
}
}