/// <summary>
/// Align the <see cref="Rectangle"/> structure on the outside of the destination <see cref="Rectangle"/>.
/// </summary>
/// <param name="rect">Structure <see cref="Rectangle"/> to be aligned.</param>
/// <param name="alignment">One of the values in the enumeration <see cref="OutsideAlignment"/> that represents the type of alignment.</param>
/// <param name="destRect">Structure <see cref="Rectangle"/> where it will be aligned.</param>
/// <returns>
/// A <see cref="Rectangle"/> structure that represents the destination rectangle that contains the aligned element.
/// </returns>
public static Rectangle AlignOutside(this Rectangle rect, OutsideAlignment alignment, Rectangle destRect)
{
switch (alignment)
{
case OutsideAlignment.TopLeftCorner:
rect.Offset(destRect.X - rect.X - rect.Width, destRect.Y - rect.Y);
break;
case OutsideAlignment.TopLeft:
rect.Offset(destRect.X - rect.X, destRect.Y - rect.Y - rect.Height);
break;
case OutsideAlignment.TopCenter:
rect.Offset(destRect.X - rect.X + (destRect.Width - rect.Width) >> 1, destRect.Y - rect.Y - rect.Height);
break;
case OutsideAlignment.TopRight:
rect.Offset(destRect.X - rect.X + destRect.Width - rect.Width, destRect.Y - rect.Y - rect.Height);
break;
case OutsideAlignment.TopRightCorner:
rect.Offset(destRect.X - rect.X + destRect.Width, destRect.Y - rect.Y);
break;
case OutsideAlignment.MiddleRight:
rect.Offset(destRect.X - rect.X + destRect.Width, destRect.Y - rect.Y + (destRect.Height - rect.Height) >> 1);
break;
case OutsideAlignment.BottomRightCorner:
rect.Offset(destRect.X - rect.X + destRect.Width, destRect.Bottom - rect.Height);
break;
case OutsideAlignment.BottomRight:
rect.Offset(destRect.X - rect.X + destRect.Width - rect.Width, destRect.Y + destRect.Height - rect.Y);
break;
case OutsideAlignment.BottomCenter:
rect.Offset(destRect.X - rect.X + (destRect.Width - rect.Width) >> 1, destRect.Y + destRect.Height - rect.Y);
break;
case OutsideAlignment.BottomLeft:
rect.Offset(destRect.X - rect.X, destRect.Y + destRect.Height - rect.Y);
break;
case OutsideAlignment.BottomLeftCorner:
rect.Offset(destRect.X - rect.X - rect.Width, destRect.Bottom - rect.Height);
break;
case OutsideAlignment.MiddleLeft:
rect.Offset(destRect.X - rect.X - rect.Width, destRect.Y - rect.Y + (destRect.Height - rect.Height) >> 1);
break;
}
return(rect);
}
/// <summary>
/// Align the <see cref="Size"/> structure outside the target rectangle.
/// </summary>
/// <param name="size">Estructura <see cref="Size"/> que se va alinear.</param>
/// <param name="alignment">One of the values in the enumeration <see cref="OutsideAlignment"/> that represents the type of alignment.</param>
/// <param name="destRect">Structure <see cref="Rectangle"/> where it will be aligned.</param>
/// <returns>
/// Structure <see cref="Rectangle"/> that represents the destination rectangle that contains the aligned element.
/// </returns>
public static Rectangle AlignOutside(this Size size, OutsideAlignment alignment, Rectangle destRect)
{
Rectangle rect = new Rectangle(destRect.Location, size);
return(rect.AlignOutside(alignment, destRect));
}
