public static RotateTransform GetRotateTransform(Point hoverPoint, double pageWidth, double pageHeight, FoldPosition draggedCorner, PagePosition position)
{
RotateTransform rotateTransform = new RotateTransform();
double num1 = draggedCorner == FoldPosition.TopRight || draggedCorner == FoldPosition.BottomRight ? pageWidth - hoverPoint.X : hoverPoint.X;
double y = hoverPoint.Y;
double curlY = CurlCalculator.GetCurlY(num1, y);
if (position == PagePosition.Left)
{
double num2 = 0.0;
double num3 = hoverPoint.Y > 0.0 ? 0.0 : pageHeight;
double d = Math.Atan2(num1, curlY - y) * 180.0 / Math.PI;
if (double.IsNaN(d) || double.IsInfinity(d) || d < 0.0)
{
d = 0.0;
}
rotateTransform.CenterY = num3;
rotateTransform.CenterX = num2;
rotateTransform.Angle = hoverPoint.Y >= 0.0 ? -d : 180.0 - d;
}
else
{
double num2 = pageWidth;
double num3 = hoverPoint.Y > 0.0 ? 0.0 : pageHeight;
double d = Math.Atan2(num1, curlY - y) * 180.0 / Math.PI;
if (double.IsNaN(d) || double.IsInfinity(d) || d < 0.0)
{
d = 0.0;
}
rotateTransform.CenterY = num3;
rotateTransform.CenterX = num2;
rotateTransform.Angle = hoverPoint.Y >= 0.0 ? d : d - 180.0;
}
return(rotateTransform);
}
public static PathGeometry GetRightSideBackPageClip(Point hoverPoint, double pageWidth, double pageHeight)
{
double x = pageWidth - hoverPoint.X;
double y = hoverPoint.Y;
double curlX = CurlCalculator.GetCurlX(x, y);
double curlY = CurlCalculator.GetCurlY(x, y);
if (hoverPoint.Y >= 0.0)
{
if (curlY < pageHeight)
{
return(GeometryBuilder.BuildPathGeometry(new Point(0.0, 0.0), new Point(curlX, 0.0), new Point(0.0, curlY)));
}
else
{
return(GeometryBuilder.BuildPathGeometry(new Point(0.0, 0.0), new Point(curlX, 0.0), new Point(curlX * (curlY - pageHeight) / curlY, pageHeight), new Point(0.0, pageHeight)));
}
}
else
{
double num = -curlY;
if (num < pageHeight)
{
return(GeometryBuilder.BuildPathGeometry(new Point(0.0, pageHeight - num), new Point(0.0, pageHeight), new Point(curlX, pageHeight)));
}
else
{
return(GeometryBuilder.BuildPathGeometry(new Point(0.0, pageHeight), new Point(curlX, pageHeight), new Point(curlX * (num - pageHeight) / num, 0.0), new Point(0.0, 0.0)));
}
}
}