QT-串口工具-编程知识

一、演示效果

请添加图片描述

二、关键程序

：

#include "mainwindow.h"
#include "ui_mainwindow.h"#include <QMessageBox>MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow),listPlugins(QList<TabPluginInterface *>()),translator(new QTranslator())
{ui->setupUi(this);tabCOMSimple = new TabCOMSimple(this);ui->tabMain->addTab(tabCOMSimple, tr("Simple"));tabAdvanced = new TabAdvanced(this);ui->tabMain->addTab(tabAdvanced, tr("Advanced"));decoder = new Decoder(this, tabAdvanced->getListProtocals(), tabAdvanced->getEndianess());// [start] Data stream connections.connect(decoder, &Decoder::rawDataReady, tabCOMSimple, &TabCOMSimple::rawDataReady);connect(decoder, &Decoder::frameReady, tabAdvanced, &TabAdvanced::frameDataReady);// [End]// [Start] Pluginsconnect(ui->actionLoad_Plugin, &QAction::triggered, this, &MainWindow::onLoadPluginTriggered);connect(decoder, &Decoder::frameReady, this, &MainWindow::onDecodedDataReady);QString folderString = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation) + "/QSerial Socket Amigo";QFileInfo folder(folderString);if (!folder.exists())QDir().mkdir(folderString);folderString.append("/plugins");QFileInfo pluginsFolder(folderString);if (!pluginsFolder.exists())QDir().mkdir(folderString);// [End]// [Start] i18nconnect(ui->actionEnglish, &QAction::triggered, this, &MainWindow::onActionEnglishTriggered);ui->menuLanguage->addAction(tr(u8"简体中文"), this, &MainWindow::onActionChineseTriggered);// [End]ui->groupNetProperties->setDisabled(true);connect(ui->radioSerial, &QRadioButton::clicked, this, &MainWindow::onConnectionTypeChanged);connect(ui->radioNetSocket, &QRadioButton::clicked, this, &MainWindow::onConnectionTypeChanged);connect(ui->buttonOpen, &QPushButton::clicked, this, &MainWindow::openConnection);serialDevice = new SerialDevice(this, ui->comboPorts, ui->buttonRefreshPorts,ui->comboBaudrate, ui->comboDataBits,ui->comboParity, ui->comboStopBits,ui->comboFlowControl);netSocketDevice = new NetSocketDevice(this, ui->inputNetIPAddr, ui->inputNetPort,ui->radioNetTypeTCP, ui->radioNetTypeUDP,ui->radioNetRoleClient, ui->radioNetRoleServer);connect(serialDevice, &SerialDevice::connected, this, &MainWindow::onDeviceConnected);connect(netSocketDevice, &SerialDevice::connected, this, &MainWindow::onDeviceConnected);connect(serialDevice, &SerialDevice::errorDisconnected, this, &MainWindow::onDeviceErrorDisconnected);connect(netSocketDevice, &SerialDevice::errorDisconnected, this, &MainWindow::onDeviceErrorDisconnected);commDevice = serialDevice;// [start] Log stream connections.connect(tabCOMSimple, &TabCOMSimple::log, this, &MainWindow::log);connect(netSocketDevice, &NetSocketDevice::log, this, &MainWindow::log);// [end]translateTo("zh");this->setWindowTitle(u8"串口工具");
}MainWindow::~MainWindow()
{delete ui;
}void MainWindow::onConnectionTypeChanged(bool isChecked)
{Q_UNUSED(isChecked)if (ui->radioSerial->isChecked()) {ui->groupNetProperties->setDisabled(true);ui->groupSerialProperties->setEnabled(true);commDevice = serialDevice;} else if (ui->radioNetSocket->isChecked()) {ui->groupNetProperties->setEnabled(true);ui->groupSerialProperties->setDisabled(true);commDevice = netSocketDevice;}
}void MainWindow::closeDevice()
{commDevice->close();ui->groupConnSel->setEnabled(true);ui->buttonOpen->setText(tr("Open Connection"));tabAdvanced->setAllowRunning(false);
}void MainWindow::openConnection()
{if (ui->groupConnSel->isEnabled()) {// This acts like sending connect command, device will signals conncted if so.int ret = commDevice->open();if (ret != 0) {return;}} else {closeDevice();}
}// Only when device is really connected.
void MainWindow::onDeviceConnected()
{tabCOMSimple->bindIODevice(commDevice->ioDevice);decoder->setConnection(commDevice->ioDevice);ui->groupConnSel->setDisabled(true);ui->buttonOpen->setText(tr("Close Connection"));tabAdvanced->setAllowRunning(true);
}void MainWindow::onDeviceErrorDisconnected()
{closeDevice();
}void MainWindow::log(QString str)
{ui->textLog->append(str);
}void MainWindow::onLoadPluginTriggered()
{QString pluginsFolder = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation) + "/QSerial Socket Amigo/plugins";
#if defined(Q_OS_WIN)QString type = tr("Dynamic Linked Library (*.dll)");
#elif defined (Q_OS_LINUX)QString type = tr("Shared Library (*.so)");
#else//Not supporting Mac.Q_ASSERT(false);
#endifQString fileName = QFileDialog::getOpenFileName(this,tr("Select Plugin to Load"),pluginsFolder,type);if (fileName.isEmpty())return;else {QPluginLoader loader(fileName);QObject *pluginObject = loader.instance();if (pluginObject) {TabPluginInterface *plugin = qobject_cast<TabPluginInterface *>(pluginObject);plugin->setConnection(currentConnection);listPlugins.append(plugin);QWidget *widget = new QWidget();widget->setLayout(plugin->getLayout());ui->tabMain->addTab(widget, plugin->getName());ui->tabMain->setCurrentIndex(ui->tabMain->count() - 1);} elseQMessageBox::warning(this, tr("error"), tr("plugin read error"));}
}void MainWindow::onDecodedDataReady(int id, QList<double> listValues)
{for (auto plugin : listPlugins)plugin->onFrameUpdated(id, listValues);
}// Two characters locale, eg: en, zh, de.
void MainWindow::translateTo(QString locale)
{QString qmPath = qApp->applicationDirPath().append("/Serial-Amigo_");translator->load(qmPath.append(locale).append(".qm"));qApp->installTranslator(translator);}void MainWindow::retranslateUi()
{ui->tabMain->setTabText(1, QCoreApplication::translate("MainWindow", "Simple"));ui->tabMain->setTabText(2, QCoreApplication::translate("MainWindow", "Advanced"));ui->comboParity->setItemText(0, QCoreApplication::translate("MainWindow", "NoParity"));ui->comboParity->setItemText(1, QCoreApplication::translate("MainWindow", "EvenParity"));ui->comboParity->setItemText(2, QCoreApplication::translate("MainWindow", "OldParity"));ui->comboParity->setItemText(3, QCoreApplication::translate("MainWindow", "SpaceParity"));ui->comboParity->setItemText(4, QCoreApplication::translate("MainWindow", "MarkParity"));ui->comboFlowControl->setItemText(0, QCoreApplication::translate("MainWindow", "No"));ui->comboFlowControl->setItemText(1, QCoreApplication::translate("MainWindow", "Hard"));ui->comboFlowControl->setItemText(2, QCoreApplication::translate("MainWindow", "Soft"));
}void MainWindow::onActionChineseTriggered()
{translateTo("zh");
}void MainWindow::onActionEnglishTriggered()
{translateTo("en");
}void MainWindow::changeEvent(QEvent *event)
{switch (event->type()) {case QEvent::LanguageChange:ui->retranslateUi(this);retranslateUi();break;default:break;}QMainWindow::changeEvent(event);
}void MainWindow::updatePluginConnection()
{for (auto plugin : listPlugins)plugin->setConnection(commDevice->ioDevice);
}