# HG changeset patch
# User Hasan Yavuz ÖZDERYA <hy@ozderya.net>
# Date 2015-04-07 05:00:45
# Node ID bcd6b30d01d1831d9ff77f8a1e81ab3ecaf5a08d
# Parent  ce43e0348d45abbea01c3c15a5b10687b2200150

implemented skip byte function

diff --git a/mainwindow.cpp b/mainwindow.cpp
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -121,6 +121,11 @@ MainWindow::MainWindow(QWidget *parent) 
     QObject::connect(&(this->serialPort), &QSerialPort::readyRead,
                      this, &MainWindow::onDataReady);
 
+    // init skip byte button
+    skipByteRequested = false;
+    QObject::connect(ui->pbSkipByte, &QPushButton::clicked,
+                     this, &MainWindow::skipByte);
+
     loadPortList();
     loadBaudRateList();
     ui->cbBaudRate->setCurrentIndex(ui->cbBaudRate->findText("9600"));
@@ -314,6 +319,14 @@ void MainWindow::onDataReady()
     if (!ui->actionPause->isChecked())
     {
         int bytesAvailable = serialPort.bytesAvailable();
+
+        if (bytesAvailable > 0 && skipByteRequested)
+        {
+            serialPort.read(1);
+            skipByteRequested = false;
+            bytesAvailable--;
+        }
+
         if (bytesAvailable < sampleSize)
         {
             return;
@@ -360,6 +373,11 @@ void MainWindow::onPortError(QSerialPort
 
 }
 
+void MainWindow::skipByte()
+{
+    skipByteRequested = true;
+}
+
 void MainWindow::addData(QVector<double> data)
 {
     int offset = numOfSamples - data.size();
diff --git a/mainwindow.h b/mainwindow.h
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -73,6 +73,8 @@ private:
     // note that serialPort should already have enough bytes present
     template<typename T> double readSampleAs();
 
+    bool skipByteRequested;
+
 private slots:
     void loadPortList();
     void loadBaudRateList();
@@ -88,6 +90,8 @@ private slots:
     void onDataReady();
     void onPortError(QSerialPort::SerialPortError error);
 
+    void skipByte();
+
     void onNumOfSamplesChanged(int value);
     void onAutoScaleChecked(bool checked);
     void onYScaleChanged();