实现打开串口

添加了控制串口类 在子进程中进行IO操作

SerialAsst.pro

@@ -25,7 +25,9 @@ DEFINES += QT_DEPRECATED_WARNINGS
 
 SOURCES += \
         main.cpp \
-        mainwindow.cpp
+        mainwindow.cpp \
+    serialcontroller.cpp
 
 HEADERS += \
-        mainwindow.h
+        mainwindow.h \
+    serialcontroller.h

mainwindow.cpp

@@ -35,6 +35,8 @@ MainWindow::MainWindow(QWidget *parent)
     OpenButton = new QPushButton(tr("打开串口"));
     SendButton = new QPushButton(tr("发送"));
 
+    connect(OpenButton, QPushButton::clicked, this, OpenSerial);
+
     //初始化布局
     layout = new QGridLayout(this);
     layout->addWidget(BaudrateLabel, 1, 0);
@@ -63,7 +65,19 @@ MainWindow::MainWindow(QWidget *parent)
     CheckSerials();
 
     //开始串口进程
-//    SerialThr.start();
+    serialController = new SerialController;
+    serialController->moveToThread(&SerialThr);
+    SerialThr.start();
+
+    connect(this, requestOpen, serialController, SerialController::openSerial);
+    connect(this, requestClose, serialController, SerialController::closeSerial);
+    connect(serialController, SerialController::openSuccess, this, serialOpened);
+    connect(serialController, SerialController::openFailed, this, serialNotOpened);
+    connect(serialController, SerialController::closeSuccess, this, serialClosed);
+    connect(this, setBaudRate, serialController, SerialController::getBaudrate);
+    connect(this, setStopBits, serialController, SerialController::getStopbits);
+    connect(this, setDataBits, serialController, SerialController::getDatabits);
+    connect(this, setParity, serialController, SerialController::getParity);
 }
 
 void MainWindow::CheckSerials()
@@ -83,6 +97,7 @@ void MainWindow::CheckSerials()
             COMBox->setDisabled(false);
             COMBox->clear();
             COMBox->addItems(COMList);
+            OpenButton->setDisabled(false);
         }
     }
     else
@@ -91,10 +106,47 @@ void MainWindow::CheckSerials()
         COMList.clear();
         COMBox->addItem(tr("(空)"));
         COMBox->setDisabled(true);
+        OpenButton->setDisabled(true);
     }
 }
 
 MainWindow::~MainWindow()
 {
+    SerialThr.terminate();
+}
+
+void MainWindow::serialOpened()
+{
+    OpenButton->setText(tr("关闭串口"));
+    disconnect(OpenButton, QPushButton::clicked, this, OpenSerial);
+    connect(OpenButton, QPushButton::clicked, this, CloseSerial);
+}
+
+void MainWindow::serialNotOpened()
+{
+    qDebug()<<"打开失败";
+}
+
+void MainWindow::serialClosed()
+{
+    OpenButton->setText(tr("打开串口"));
+    disconnect(OpenButton, QPushButton::clicked, this, CloseSerial);
+    connect(OpenButton, QPushButton::clicked, this, OpenSerial);
+}
+
+void MainWindow::OpenSerial()
+{
+    QString portName = COMBox->currentText().split(' ')[0];
+    qDebug()<<portName;
+    emit requestOpen(portName);
+    emit setBaudRate(BaudrateBox->currentText());
+    emit setStopBits(StopbitsBox->currentText());
+    emit setDataBits(StopbitsBox->currentText());
+    emit setParity(ParityBox->currentText());
 
 }
+
+void MainWindow::CloseSerial()
+{
+    emit requestClose();
+}

mainwindow.h

@@ -10,6 +10,9 @@
 #include <QSerialPortInfo>
 #include <QLabel>
 #include <QThread>
+#include "serialcontroller.h"
+
+#include <QDebug>
 
 
 class MainWindow : public QWidget
@@ -21,6 +24,19 @@ public:
     void CheckSerials();
     ~MainWindow();
 
+signals:
+    void requestOpen(QString portName);
+    void requestClose();
+    void setBaudRate(QString baudrate);
+    void setStopBits(QString stopbits);
+    void setDataBits(QString databits);
+    void setParity(QString parity);
+
+public slots:
+    void serialOpened();
+    void serialNotOpened();
+    void serialClosed();
+
 private:
     QComboBox *COMBox, *BaudrateBox, *StopbitsBox, *DatabitsBox, *ParityBox;
     QStringList COMList, BaudrateList, StopbitsList, DatabitsList, ParityList;
@@ -29,7 +45,11 @@ private:
     QTextEdit *RecvArea, *SendArea;
     QPushButton *OpenButton, *SendButton;
     QTimer *CheckTimer;
+    SerialController *serialController;
     QThread SerialThr;
+
+    void OpenSerial();
+    void CloseSerial();
 };
 
 #endif // MAINWINDOW_H

serialcontroller.cpp

@@ -0,0 +1,63 @@
+#include "serialcontroller.h"
+
+SerialController::SerialController(QObject *parent) : QObject(parent)
+{
+    serial = new QSerialPort(this);
+}
+
+void SerialController::openSerial(QString name)
+{
+    serial->setPortName(name);
+    if(serial->open(QIODevice::ReadWrite))
+    {
+        //串口打开成功
+        emit openSuccess();
+    }
+    else
+    {
+        //串口打开失败
+        emit openFailed();
+    }
+}
+
+void SerialController::closeSerial()
+{
+    if(serial->isOpen())
+    {
+        serial->close();
+        emit closeSuccess();
+    }
+}
+
+void SerialController::getBaudrate(QString baudrate)
+{
+    serial->setBaudRate(baudrate.toInt());
+
+}
+
+void SerialController::getStopbits(QString stopbits)
+{
+    if(stopbits == "1")
+        serial->setStopBits(QSerialPort::OneStop);
+    else if(stopbits == "1.5")
+        serial->setStopBits(QSerialPort::OneAndHalfStop);
+    else if(stopbits == "2")
+        serial->setStopBits(QSerialPort::TwoStop);
+}
+
+void SerialController::getDatabits(QString databits)
+{
+    serial->setDataBits(QSerialPort::DataBits(databits.toInt()));
+}
+
+void SerialController::getParity(QString parity)
+{
+    if(parity == tr("无"))
+        serial->setParity(QSerialPort::NoParity);
+
+    else if(parity == tr("奇校验"))
+        serial->setParity(QSerialPort::OddParity);
+
+    else if(parity == tr("偶校验"))
+        serial->setParity(QSerialPort::EvenParity);
+}

serialcontroller.h

@@ -0,0 +1,32 @@
+#ifndef SERIALCONTROLLER_H
+#define SERIALCONTROLLER_H
+
+#include <QObject>
+#include <QSerialPort>
+#include <QDebug>
+
+class SerialController : public QObject
+{
+    Q_OBJECT
+public:
+    explicit SerialController(QObject *parent = nullptr);
+
+signals:
+    void openSuccess();
+    void openFailed();
+    void closeSuccess();
+
+public slots:
+    void openSerial(QString name);
+    void closeSerial();
+    void getBaudrate(QString baudrate);
+    void getStopbits(QString stopbits);
+    void getDatabits(QString databits);
+    void getParity(QString parity);
+
+private:
+    QSerialPort *serial;
+
+};
+
+#endif // SERIALCONTROLLER_H