Method QCPAxisRect

3rdparty/qcustomplot/qcustomplot.cpp:17555–17597

! Creates a QCPAxisRect instance and sets default values. An axis is added for each of the four sides, the top and right axes are set invisible initially. */

  sides, the top and right axes are set invisible initially.
*/
QCPAxisRect::QCPAxisRect(QCustomPlot *parentPlot, bool setupDefaultAxes) :
  QCPLayoutElement(parentPlot),
  mBackgroundBrush(Qt::NoBrush),
  mBackgroundScaled(true),
  mBackgroundScaledMode(Qt::KeepAspectRatioByExpanding),
  mInsetLayout(new QCPLayoutInset),
  mRangeDrag(Qt::Horizontal|Qt::Vertical),
  mRangeZoom(Qt::Horizontal|Qt::Vertical),
  mRangeZoomFactorHorz(0.85),
  mRangeZoomFactorVert(0.85),
  mDragging(false)
{
  mInsetLayout->initializeParentPlot(mParentPlot);
  mInsetLayout->setParentLayerable(this);
  mInsetLayout->setParent(this);
  
  setMinimumSize(50, 50);
  setMinimumMargins(QMargins(15, 15, 15, 15));
  mAxes.insert(QCPAxis::atLeft, QList<QCPAxis*>());
  mAxes.insert(QCPAxis::atRight, QList<QCPAxis*>());
  mAxes.insert(QCPAxis::atTop, QList<QCPAxis*>());
  mAxes.insert(QCPAxis::atBottom, QList<QCPAxis*>());
  
  if (setupDefaultAxes)
  {
    QCPAxis *xAxis = addAxis(QCPAxis::atBottom);
    QCPAxis *yAxis = addAxis(QCPAxis::atLeft);
    QCPAxis *xAxis2 = addAxis(QCPAxis::atTop);
    QCPAxis *yAxis2 = addAxis(QCPAxis::atRight);
    setRangeDragAxes(xAxis, yAxis);
    setRangeZoomAxes(xAxis, yAxis);
    xAxis2->setVisible(false);
    yAxis2->setVisible(false);
    xAxis->grid()->setVisible(true);
    yAxis->grid()->setVisible(true);
    xAxis2->grid()->setVisible(false);
    yAxis2->grid()->setVisible(false);
    xAxis2->grid()->setZeroLinePen(Qt::NoPen);
    yAxis2->grid()->setZeroLinePen(Qt::NoPen);
    xAxis2->grid()->setVisible(false);
    yAxis2->grid()->setVisible(false);
  }
}

QCPAxisRect::~QCPAxisRect()
{