Method paintEvent

src/qt/qcustomplot.cpp:14718–14731

! \internal Event handler for when the QCustomPlot widget needs repainting. This does not cause a \ref replot, but draws the internal buffer on the widget surface. */

  draws the internal buffer on the widget surface.
*/
void QCustomPlot::paintEvent(QPaintEvent *event)
{
  Q_UNUSED(event);
  QCPPainter painter(this);
  if (painter.isActive())
  {
    painter.setRenderHint(QPainter::HighQualityAntialiasing); // to make Antialiasing look good if using the OpenGL graphicssystem
    if (mBackgroundBrush.style() != Qt::NoBrush)
      painter.fillRect(mViewport, mBackgroundBrush);
    drawBackground(&painter);
    for (int bufferIndex = 0; bufferIndex < mPaintBuffers.size(); ++bufferIndex)
      mPaintBuffers.at(bufferIndex)->draw(&painter);
  }
}

/*! \internal