コード例 #1
0
void ViewProfileDivider::setX (double x,
                               double xLow,
                               double xHigh)
{
  // Convert to screen coordinates
  m_xScene = m_sceneWidth * (x - xLow) / (xHigh - xLow);
  sendSignalMoved ();

  updateGeometryPaddle ();
  updateGeometryDivider ();
  updateGeometryNonPaddle ();

  // Triangle vertices
  double xLeft = rect().left() + rect().width() / 2.0 - ARROW_WIDTH / 2.0;
  double xRight = rect().left() + rect().width() / 2.0 + ARROW_WIDTH / 2.0;
  double yTop = rect().top() + rect().height() / 2.0 - ARROW_HEIGHT / 2.0;
  double yMiddle = rect().top() + rect().height() / 2.0;
  double yBottom = rect().top() + rect().height() / 2.0 + ARROW_HEIGHT / 2.0;

  QPolygonF polygonArrow;
  if (m_isLowerBoundary) {

    // Draw arrow pointing to the right
    polygonArrow.push_front (QPointF (xLeft, yTop));
    polygonArrow.push_front (QPointF (xRight, yMiddle));
    polygonArrow.push_front (QPointF (xLeft, yBottom));

  } else {

    // Draw arrow pointing to the left
    polygonArrow.push_front (QPointF (xRight, yTop));
    polygonArrow.push_front (QPointF (xLeft, yMiddle));
    polygonArrow.push_front (QPointF (xRight, yBottom));
  }
  m_arrow->setPolygon (polygonArrow);
  m_arrow->setPen (QPen (Qt::black));
  m_arrow->setBrush (QBrush (ARROW_COLOR));
}
コード例 #2
0
ファイル: dataconverter.cpp プロジェクト: new5244/qt
bool DataConverter::digitalPattern_Rotate(QPolygonF &points, qreal angle)
{
	if (angle == 0.0)
		return true;

	if (angle < -180.0 || angle > 180.0)
	{
		qDebug("[DataConverter::digitalPattern_Rotate] Error: Angle: [%f]", angle);
		return false;
	}

	if (points.size() < 10)
	{
		qDebug("[DataConverter::digitalPattern_Rotate] Error: Polygon Point Count: [%d]", points.size());
		return false;
	}

	//
	QTransform transform;

	transform.rotate(angle);

	points = transform.map(points);

	//
	int bottomIndex = 0;

	{
		qreal tmpX = -9999.99;

		for (int i = 0; i < points.size(); i++)
		{
			if (points.at(i).y() < 0.0)
				continue;

			if (points.at(i).x() > 0.0)
				continue;

			if (points.at(i).x() > tmpX)
			{
				tmpX = points.at(i).x();
				bottomIndex = i;
			}
		}
	}

	qDebug("** bottomIndex: [%d]", bottomIndex);

	if (bottomIndex > 0)
	{
		QPointF tmpPoint;

		for (int i = points.size() - 1; i >= bottomIndex; i--)
		{
			tmpPoint = points.last();
			points.pop_back();
			points.push_front(tmpPoint);
		}
	}

	return true;
}