private DmsCoordinateFormatHelper FormatDefault(DmsCoordinateFormatHelper dmsCoordinateFormatHelper)
{
if (dmsCoordinateFormatHelper.DegreesRequested)
{
FormatElement(DmsElement.Degrees, Degrees, ref dmsCoordinateFormatHelper);
if (NegationOfDegreesRequired(dmsCoordinateFormatHelper))
{
dmsCoordinateFormatHelper.FormattedString = "-" + dmsCoordinateFormatHelper.FormattedString;
}
}
if (dmsCoordinateFormatHelper.MinutesRequested)
{
FormatElement(DmsElement.Minutes, Minutes, ref dmsCoordinateFormatHelper);
}
if (dmsCoordinateFormatHelper.SecondsRequested)
{
FormatElement(DmsElement.Seconds, Seconds, ref dmsCoordinateFormatHelper);
}
if (dmsCoordinateFormatHelper.HemisphereRequested)
{
FormatHemisphere(ref dmsCoordinateFormatHelper);
}
return(dmsCoordinateFormatHelper);
}
private static void UpdateFormatString(DmsCoordinateFormatHelper helper, char charToReplace, double value)
{
var degreesElementHelpers = helper.Format.FindConsecutiveChars(charToReplace);
foreach (var degreesElementHelper in degreesElementHelpers)
{
helper.FormattedString = helper.FormattedString
.Replace(degreesElementHelper.StringReplacement,
value.ToString(degreesElementHelper.FormatSpecifier, helper.FormatProvider));
}
}
private void FormatDegreesOnly(ref DmsCoordinateFormatHelper dmsCoordinateFormatHelper)
{
const char charToReplaceInFormatString = 'D';
var factor = NegationOfDegreesRequired(dmsCoordinateFormatHelper) ? -1 : 1;
var valueInDecimalDegreesToFormat = (Degrees + Minutes / 60.0 + Seconds / 3600.0) * factor;
UpdateFormatString(dmsCoordinateFormatHelper, charToReplaceInFormatString, valueInDecimalDegreesToFormat);
if (dmsCoordinateFormatHelper.HemisphereRequested)
{
FormatHemisphere(ref dmsCoordinateFormatHelper);
}
}
private void FormatDegreesMinutes(ref DmsCoordinateFormatHelper helper)
{
FormatElement(DmsElement.Degrees, Degrees, ref helper);
if (NegationOfDegreesRequired(helper))
{
helper.FormattedString = "-" + helper.FormattedString;
}
const char charToReplace = 'M';
var minutesValue = Minutes + Seconds / 60.0;
UpdateFormatString(helper, charToReplace, minutesValue);
if (helper.HemisphereRequested)
{
FormatHemisphere(ref helper);
}
}
private string FormatString(string format, IFormatProvider formatProvider)
{
var formatHelper = new DmsCoordinateFormatHelper(format, formatProvider, format.ToUpper());
if (DegreesOnlyRequested(formatHelper))
{
FormatDegreesOnly(ref formatHelper);
}
else if (DegreesAndMinutesOnlyRequested(formatHelper))
{
FormatDegreesMinutes(ref formatHelper);
}
else
{
formatHelper = FormatDefault(formatHelper);
}
return(formatHelper.FormattedString);
}
private static bool DegreesOnlyRequested(DmsCoordinateFormatHelper dmsCoordinateFormatHelper)
{
return(dmsCoordinateFormatHelper.DegreesRequested && !dmsCoordinateFormatHelper.MinutesRequested && !dmsCoordinateFormatHelper.SecondsRequested);
}
private void FormatHemisphere(ref DmsCoordinateFormatHelper helper)
{
var replacement = Hemisphere.ToString().Substring(0, 1);
helper.FormattedString = helper.FormattedString.Replace("H", replacement);
}
private static void FormatElement(DmsElement element, double elementSource, ref DmsCoordinateFormatHelper helper)
{
var charToReplace = char.Parse(element.ToString().Substring(0, 1));
UpdateFormatString(helper, charToReplace, elementSource);
}
private bool NegationOfDegreesRequired(DmsCoordinateFormatHelper helper)
{
return(helper != null && (!helper.HemisphereRequested && (Hemisphere == Hemisphere.South || Hemisphere == Hemisphere.West)));
}