Update plotter.cpp

Right Click on Audio FFT has no effect - resetting to zero centered FFT is in my opinion useless.

In the FFT window, the horizontal frequency numbers are now with a harder contrast ...

src/qtgui/plotter.cpp

@@ -656,7 +656,7 @@ void CPlotter::mousePressEvent(QMouseEvent * event)
  emit newDemodFreq(m_DemodCenterFreq, m_DemodCenterFreq - m_CenterFreq);
  drawOverlay();
  }
- else if (event->buttons() == Qt::RightButton)
+ else if (event->buttons() == Qt::RightButton && m_CenterLineEnabled)
  {
  // reset frequency zoom
  resetHorizontalZoom();
@@ -671,7 +671,7 @@ void CPlotter::mousePressEvent(QMouseEvent * event)
  else if (m_CursorCaptured == XAXIS)
  {
  m_Xzero = pt.x();
- if (event->buttons() == Qt::RightButton)
+ if (event->buttons() == Qt::RightButton && m_CenterLineEnabled)
  {
  // reset frequency zoom
  resetHorizontalZoom();
@@ -1401,6 +1401,12 @@ void CPlotter::drawOverlay()
 
  // draw frequency values (x axis)
  makeFrequencyStrs();
+
+ if(m_CenterLineEnabled)
+ {
+ painter.fillRect(0, xAxisTop, w, h, QColor(0xff000000));
+ }
+
  painter.setPen(QColor(PLOTTER_TEXT_COLOR));
  for (int i = 0; i <= m_HorDivs; i++)
  {