Method getFinalRect

src/qt/qcustomplot.cpp:29452–29498

! \internal Returns the final (tight) rect the pixmap is drawn in, depending on the current item positions and scaling settings. The output parameters \a flippedHorz and \a flippedVert return whether the pixmap should be drawn flipped horizontally or vertically in the returned rect. (The returned rect itself is always normalized, i.e. the top left corner of the rect is actually fur

  aligned with the item position \a topLeft. The position \a bottomRight is ignored.
*/
QRect QCPItemPixmap::getFinalRect(bool *flippedHorz, bool *flippedVert) const
{
  QRect result;
  bool flipHorz = false;
  bool flipVert = false;
  QPoint p1 = topLeft->pixelPosition().toPoint();
  QPoint p2 = bottomRight->pixelPosition().toPoint();
  if (p1 == p2)
    return QRect(p1, QSize(0, 0));
  if (mScaled)
  {
    QSize newSize = QSize(p2.x()-p1.x(), p2.y()-p1.y());
    QPoint topLeft = p1;
    if (newSize.width() < 0)
    {
      flipHorz = true;
      newSize.rwidth() *= -1;
      topLeft.setX(p2.x());
    }
    if (newSize.height() < 0)
    {
      flipVert = true;
      newSize.rheight() *= -1;
      topLeft.setY(p2.y());
    }
    QSize scaledSize = mPixmap.size();
#ifdef QCP_DEVICEPIXELRATIO_SUPPORTED
    scaledSize /= mPixmap.devicePixelRatio();
    scaledSize.scale(newSize*mPixmap.devicePixelRatio(), mAspectRatioMode);
#else
    scaledSize.scale(newSize, mAspectRatioMode);
#endif
    result = QRect(topLeft, scaledSize);
  } else
  {
#ifdef QCP_DEVICEPIXELRATIO_SUPPORTED
    result = QRect(p1, mPixmap.size()/mPixmap.devicePixelRatio());
#else
    result = QRect(p1, mPixmap.size());
#endif
  }
  if (flippedHorz)
    *flippedHorz = flipHorz;
  if (flippedVert)
    *flippedVert = flipVert;
  return result;
}

/*! \internal