添加清除按钮

mainwidget.cpp

@@ -36,7 +36,7 @@ MainWidget::MainWidget(QWidget *parent)
     RecvArea->setPalette(pal);
     SendArea = new QTextEdit();
     RecvArea->setFont(QFont(tr("Microsoft YaHei UI"), 10));
-    SendArea->setFont(QFont(tr("Microsoft YaHei UI"), 13));
+    SendArea->setFont(QFont(tr("Microsoft YaHei UI Light"), 13));
     SendArea->installEventFilter(this);
 
     //按钮
@@ -44,8 +44,11 @@ MainWidget::MainWidget(QWidget *parent)
     SendButton = new QPushButton(tr("发送"));
     SendButton->setDisabled(true);
     SendButton->setToolTip(tr("Ctrl+Enter"));
+    ClearButton = new QPushButton(tr("清除接收"));
 
     connect(OpenButton, QPushButton::clicked, this, OpenSerial);
+    connect(SendButton, QPushButton::clicked, this, SendContent);
+    connect(ClearButton, QPushButton::clicked, this, ClearRecv);
 
     //初始化布局
     layout = new QGridLayout(this);
@@ -62,6 +65,7 @@ MainWidget::MainWidget(QWidget *parent)
     layout->addWidget(SendButton, 5, 2, Qt::AlignRight);
     layout->addWidget(RecvArea, 0, 2, 3, 1);
     layout->addWidget(SendArea, 3, 2, 2, 1);
+    layout->addWidget(ClearButton, 0, 3);
     setLayout(layout);
 
     //计时器 初始化
@@ -91,7 +95,6 @@ MainWidget::MainWidget(QWidget *parent)
     connect(DatabitsBox, QComboBox::currentTextChanged, serialController, SerialController::getDatabits);
     connect(ParityBox, QComboBox::currentTextChanged, serialController, SerialController::getParity);
     connect(this, sendData, serialController, SerialController::writeData);
-    connect(SendButton, QPushButton::clicked, this, SendContent);
     connect(serialController, SerialController::recvData, this, getRecv);
 }
 
@@ -181,6 +184,11 @@ void MainWidget::CloseSerial()
     emit requestClose();
 }
 
+void MainWidget::ClearRecv()
+{
+    RecvArea->clear();
+}
+
 void MainWidget::SendContent()
 {
     QString content = SendArea->toPlainText();

mainwidget.h

@@ -42,6 +42,9 @@ public slots:
     void serialNotOpened(); //串口打开失败
     void serialClosed();    //串口关闭
     void getRecv(QByteArray recv); //串口接受数据
+    void OpenSerial();
+    void CloseSerial();
+    void ClearRecv();
 
 private:
     QComboBox *COMBox, *BaudrateBox, *StopbitsBox, *DatabitsBox, *ParityBox;
@@ -49,14 +52,11 @@ private:
     QLabel *BaudrateLabel, *StopbitsLabel, *DatabitsLabel, *ParityLabel;
     QGridLayout *layout;
     QTextEdit *RecvArea, *SendArea;
-    QPushButton *OpenButton, *SendButton;
+    QPushButton *OpenButton, *SendButton, *ClearButton;
     QTimer *CheckTimer;
     SerialController *serialController;
     QThread SerialThr;
 
-    void OpenSerial();
-    void CloseSerial();
-
 };
 
 #endif // MAINWIDGET_H