#include #include "mainwindow.h" #include "ui_mainwindow.h" #include "main.h" #include MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); client.ClientEcho(); _dbConenctor = new dbConnector(this); } MainWindow::~MainWindow() { dbRef.close(); delete _dbConenctor; delete ui; } void MainWindow::timeFunction() { client.timeFunction(); if(client.refreshChart==true){ drawGraph(); client.refreshChart=false; } } void MainWindow::on_actionConnection_triggered() { // _dbConenctor->preLoadUi(); _dbConenctor->show(); } void MainWindow::on_actionRefresh_triggered() { // drawGraph(); } void MainWindow::on_actionDisconnenct_triggered() { dbRef.close(); } void MainWindow::drawGraph(){ QLineSeries *seriesTemperature = new QLineSeries(); QLineSeries *seriesHumidity = new QLineSeries(); QLineSeries *seriesPressure = new QLineSeries(); if(dbRef.open()){ QSqlQuery queryGraphData; // queryGraphData.exec("select `tblMain`.`ID`, `temperature`, `humidity`, `pressure` FROM `tblMain` ORDER BY `tblMain`.`ID` DESC limit 16;"); queryGraphData.exec("select * FROM `tblMain` ORDER BY `tblMain`.`ID` DESC limit 190;"); for (int i = 0; queryGraphData.next(); ++i) { // int time = queryGraphData.value(4).toTime().hour()*100 + queryGraphData.value(4).toTime().minute(); int time = i; seriesTemperature->append(time, queryGraphData.value(1).toFloat()); seriesHumidity->append(time, queryGraphData.value(2).toFloat()); seriesPressure->append(time, (queryGraphData.value(3).toFloat()*100)); } // QPen pen(QRgb(0x57FF00)); // pen.setWidth(5); // seriesHumidity->setPen(pen); QChart *chartTemperature = new QChart(); chartTemperature->legend()->hide(); chartTemperature->addSeries(seriesTemperature); chartTemperature->createDefaultAxes(); chartTemperature->setTitle("Temperature!"); QChartView *chartView1 = new QChartView(chartTemperature); QChart *chartHumidity = new QChart(); chartHumidity->legend()->hide(); chartHumidity->addSeries(seriesHumidity); chartHumidity->createDefaultAxes(); chartHumidity->setTitle("Humidity!"); QChartView *chartView2 = new QChartView(chartHumidity); QChart *chartPressure = new QChart(); chartPressure->legend()->hide(); chartPressure->addSeries(seriesPressure); chartPressure->createDefaultAxes(); chartPressure->setTitle("Pressure!"); QChartView *chartView3 = new QChartView(chartPressure); QWidget *window = new QWidget; QGridLayout *layout = new QGridLayout(window); layout->addWidget(chartView1, 0 ,0); layout->addWidget(chartView2, 1 ,0); layout->addWidget(chartView3, 2 ,0); layout->setVerticalSpacing(0); layout->setHorizontalSpacing(0); layout->setContentsMargins(0,0,0,0); MainWindow::setCentralWidget(window); } else { QMessageBox::warning(this, "No connection", "Failed to connect"); } }