// TODO CR (Mar 2013): Rewrite in a way that isn't so dependent on replacing characters then doing a parse of sorts, especially when the strings are hardcoded
public static FilmSize FromDicomString(string dicomString)
{
try
{
if (string.IsNullOrEmpty(dicomString))
{
return(null);
}
if (dicomString == "A3")
{
return new FilmSize
{
_dicomString = dicomString,
_sizeUnit = FilmSizeUnit.Centimeter,
_width = 29.7f,
_height = 42.0f
}
}
;
if (dicomString == "A4")
{
return new FilmSize
{
_dicomString = dicomString,
_sizeUnit = FilmSizeUnit.Centimeter,
_width = 21.0f,
_height = 29.7f
}
}
;
var indexOfX = dicomString.IndexOf('X');
if (indexOfX < 3) // at least one char for width, and 2 chars for units
{
throw new InvalidFilmSizeException(dicomString);
}
var firstUnit = dicomString.Substring(indexOfX - 2, 2);
var secondUnit = dicomString.Substring(dicomString.Length - 2);
if (firstUnit != "CM" && firstUnit != "IN")
{
throw new InvalidFilmSizeException(dicomString);
}
if (firstUnit != secondUnit)
{
throw new InvalidFilmSizeException(dicomString);
}
var xSeparatedDimension = dicomString.Replace("IN", "").Replace("CM", "").Replace('_', '.');
var dimensions = StringUtilities.SplitQuoted(xSeparatedDimension, "X");
var filmSize = new FilmSize
{
_dicomString = dicomString,
_sizeUnit = firstUnit == "IN" ? FilmSizeUnit.Inch : FilmSizeUnit.Centimeter,
_width = float.Parse(dimensions[0], CultureInfo.InvariantCulture),
_height = float.Parse(dimensions[1], CultureInfo.InvariantCulture),
};
return(filmSize);
}
catch (NotSupportedException)
{
throw;
}
catch (InvalidFilmSizeException)
{
throw;
}
catch (Exception e)
{
throw new InvalidFilmSizeException(dicomString, e);
}
}