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mainwindow.cpp
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mainwindow.cpp
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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include<QMetaType>
#include<qextserialport.h>
#include<QValidator>
#include<QFileDialog>
#include<QFile>
#include<QTextStream>
#include<iostream>
using namespace std ;
Q_DECLARE_METATYPE(BaudRateType)
Q_DECLARE_METATYPE(StopBitsType)
Q_DECLARE_METATYPE(DataBitsType)
Q_DECLARE_METATYPE(ParityType)
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
double xaxisdata[20000];
for(int i=0 ; i<20000;i++)
xaxisdata[i]=i;
xdata =xaxisdata;
count=0;
mycurvedata =new YData[10];
mycurves =new QwtPlotCurve[10];
ui->setupUi(this);
this->setWindowTitle("UART Plot");
ui->comboBox->addItem(tr("/dev/ttyS0"),QVariant::fromValue(QString("/dev/ttyS0")));
ui->comboBox->addItem(tr("/dev/ttyS1"),QVariant::fromValue(QString("/dev/ttyS1")));
ui->comboBox->setCurrentIndex(0); //set dev/ttyS0 default
ui->comboBox_2->addItem("1200",QVariant::fromValue(BAUD1200));
ui->comboBox_2->addItem("1800",QVariant::fromValue(BAUD1800));
ui->comboBox_2->addItem("2400",QVariant::fromValue(BAUD2400));
ui->comboBox_2->addItem("4800",QVariant::fromValue(BAUD4800));
ui->comboBox_2->addItem("9600",QVariant::fromValue(BAUD9600));
ui->comboBox_2->addItem("19.2K",QVariant::fromValue(BAUD19200));
ui->comboBox_2->addItem("38.4K",QVariant::fromValue(BAUD38400));
ui->comboBox_2->addItem("57.6K",QVariant::fromValue(BAUD57600));
ui->comboBox_2->addItem("76.8K",QVariant::fromValue(BAUD76800));
ui->comboBox_2->addItem("115.2K",QVariant::fromValue(BAUD115200));
ui->comboBox_2->setCurrentIndex(5); //38.4 k default baud rate
ui->comboBox_3->addItem("5",QVariant::fromValue(DATA_5));
ui->comboBox_3->addItem("6",QVariant::fromValue(DATA_6));
ui->comboBox_3->addItem("7",QVariant::fromValue(DATA_7));
ui->comboBox_3->addItem("8",QVariant::fromValue(DATA_8));
ui->comboBox_3->setCurrentIndex(3); //8 bit
ui->comboBox_4->addItem("None",QVariant::fromValue(PAR_NONE));
ui->comboBox_4->addItem("EVEN",QVariant::fromValue(PAR_EVEN));
ui->comboBox_4->addItem("ODD",QVariant::fromValue(PAR_ODD));
ui->comboBox_4->setCurrentIndex(0);
ui->comboBox_5->addItem("1",QVariant::fromValue(STOP_1));
ui->comboBox_5->addItem("2",QVariant::fromValue(STOP_2));
ui->comboBox_5->setCurrentIndex(0);
// ui->textEdit->setText("Read Only Mode");
QValidator *myvalidator =new QDoubleValidator ;
ui->lineEdit_5->setValidator(myvalidator);
ui->lineEdit_2->setValidator(myvalidator);
ui->lineEdit_3->setValidator(myvalidator);
ui->lineEdit_4->setValidator(myvalidator);
ui->lineEdit_6->setValidator(myvalidator);
//////////////////////////////////////////////////////
// QWTPLOT
///////////////////////////////////////////////////////
ui->qwtPlot->setAxisTitle(QwtPlot::xBottom,tr("Time"));
ui->qwtPlot->setAxisTitle(QwtPlot::yLeft,tr("Readings"));
ui->qwtPlot->setCanvasBackground(Qt::white);
ui->qwtPlot->setAxisScale(QwtPlot::xBottom,0,ui->lineEdit_4->text().toInt());
ui->qwtPlot->setAxisScale(QwtPlot::yLeft,ui->lineEdit_2->text().toInt(),
ui->lineEdit_3->text().toInt());
this->setCentralWidget(ui->splitter);
//connect()
ui->pushButton_2->setEnabled(false);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
ui->lineEdit_6->setEnabled(false);
ui->groupBox->setEnabled(false);
ui->pushButton->setEnabled(false);
ui->pushButton_2->setEnabled(true);
QVariant temp;
if(ui->checkBox->isChecked())
port =new QextSerialPort(ui->lineEdit->text());
else
{
temp =ui->comboBox->itemData(ui->comboBox->currentIndex());
port =new QextSerialPort(temp.value<QString>());
}
while(!recData.isEmpty())
recData.dequeue();
temp=ui->comboBox_2->itemData(ui->comboBox_2->currentIndex());
port->setBaudRate(temp.value<BaudRateType>());
temp=ui->comboBox_3->itemData(ui->comboBox_3->currentIndex());
port->setDataBits(temp.value<DataBitsType>());
port->setFlowControl(FLOW_OFF);
temp=ui->comboBox_5->itemData(ui->comboBox_5->currentIndex());
port->setStopBits(temp.value<StopBitsType>());
temp=ui->comboBox_4->itemData(ui->comboBox_4->currentIndex());
port->setParity(temp.value<ParityType>());
if(port->open(QIODevice::ReadWrite))
ui->label_6->setText("Successfully opened the port");
else
ui->label_6->setText("NotConnected!");
recPort =new ReceivePort(port);
recPort->start();
connect(recPort,SIGNAL(BytesReceived_signal(QByteArray,int)),
this,SLOT(received_signal(QByteArray,int)));
}
void MainWindow::on_pushButton_2_clicked()
{
ReceivePort *temp =recPort ;
recPort=NULL;
delete temp ;
port->close();
QextSerialPort *temp1 =port;
port=NULL;
delete temp1;
ui->lineEdit_6->setEnabled(true);
ui->groupBox->setEnabled(true);
ui->pushButton->setEnabled(true);
ui->pushButton_2->setDisabled(true);
ui->label_6->setText("Not connected! open port");
}
void MainWindow::on_pushButton_4_clicked()
{
QString filename = QFileDialog::getSaveFileName(this,tr("Save file"),QDir::currentPath(),
tr("Data files(*.xcv *.txt) ;;ALL files (*.*)"));
QFile file(filename);
if (!file.open(QFile::WriteOnly | QFile::Text))
qDebug()<<"Failed to open file";
QTextStream savestream(&file);
savestream<<(ui->textEdit)->toPlainText();
file.close();
}
void MainWindow::on_pushButton_5_clicked()
{
if(count!=0)
{
disconnect(this,SIGNAL(datalinerec_signal(QString)),this,SLOT(updatedata(QString)));
disconnect(&mytimer,SIGNAL(timeout()),this,SLOT(replot()));
mytimer.stop();
}
count++;
double dummydata=0;
ui->qwtPlot->setAxisScale(QwtPlot::xBottom,0,ui->lineEdit_4->text().toInt());
ui->qwtPlot->setAxisScale(QwtPlot::yLeft,ui->lineEdit_2->text().toInt(),
ui->lineEdit_3->text().toInt());
this->noofsamples=ui->lineEdit_4->text().toInt();
if(noofsamples >20000)
noofsamples=20000;
this->noofcurves=ui->lineEdit_5->text().toInt();
if(noofcurves >10)
noofcurves =10;
for(int i=0 ;i<10;i++)
{
this->mycurves[i].setSamples(&dummydata,&dummydata,1);
mycurves[i].attach(ui->qwtPlot);
}
QPen mypen ;
for(int i=0 ;i<noofcurves;i++)
{
switch(i)
{
case 0:
mypen =QPen(Qt::red);
break;
case 1:
mypen =QPen(Qt::blue);
break;
case 2:
mypen =QPen(Qt::green);
break;
case 3:
mypen =QPen(Qt::magenta);
break;
case 4:
mypen =QPen(Qt::cyan);
break;
case 5:
mypen =QPen(Qt::black);
break;
case 6:
mypen =QPen(Qt::darkYellow);
mypen.setStyle(Qt::DotLine);
break;
case 7:
mypen =QPen(Qt::darkGray);
mypen.setStyle(Qt::DotLine);
break;
case 8:
mypen =QPen(Qt::darkMagenta);
mypen.setStyle(Qt::DotLine);
break;
case 9:
mypen =QPen(Qt::darkGreen);
mypen.setStyle(Qt::DotLine);
break;
}
mypen.setWidthF(1);
this->mycurves[i].setPen(mypen);
}
connect(this,SIGNAL(datalinerec_signal(QString)),this,SLOT(updatedata(QString)));
connect(&mytimer,SIGNAL(timeout()),this,SLOT(replot()));
mytimer.start(10);
}
void MainWindow::replot()
{
ui->qwtPlot->replot();
}
void MainWindow::received_signal(const QByteArray &data, int num)
{
for(int i=0 ;i<num;i++)
recData.enqueue(data[i]);
if(recData.size() >ui->lineEdit_6->text().toInt())
{
int i=0;
QString datastring;
while((ch=recData.dequeue())!='\n' && (!recData.isEmpty()))
datastring[i++]=ch;
ui->textEdit->append(datastring);
emit datalinerec_signal(datastring);
}
}
void MainWindow::updatedata(QString str)
{
QTextStream in(&str);
for(int i=0;i<noofcurves;i++)
{
in>>y_data[i];
in>>ch1;
}
for(int i=0;i<noofcurves;i++)
{
memmove(mycurvedata[i].data,&mycurvedata[i].data[1]
,(noofsamples-1)*sizeof(double));
mycurvedata[i].data[noofsamples-1]=y_data[i];
this->mycurves[i].setSamples(xdata,mycurvedata[i].data,noofsamples);
}
}