/// <summary>
/// Compares two <see cref="RequirementsSpecification"/>
/// </summary>
/// <param name="x">The first <see cref="RequirementsSpecification"/> to compare</param>
/// <param name="y">The second <see cref="RequirementsSpecification"/> to compare</param>
/// <returns>
/// Less than zero : x is "lower" than y
/// Zero: x "equals" y.
/// Greater than zero: x is "greater" than y.
/// </returns>
public int Compare(IRowViewModelBase <Thing> x, IRowViewModelBase <Thing> y)
{
if (x == null || y == null)
{
throw new ArgumentNullException();
}
var xspec = x.Thing as RequirementsSpecification;
var yspec = y.Thing as RequirementsSpecification;
if (xspec == null || yspec == null)
{
return(0);
}
if (RequirementsModule.PluginSettings?.OrderSettings != null && RequirementsModule.PluginSettings.OrderSettings.ParameterType != Guid.Empty)
{
var xOrder = xspec.ParameterValue.FirstOrDefault(z => z.ParameterType.Iid == RequirementsModule.PluginSettings.OrderSettings.ParameterType)?.Value.FirstOrDefault();
var yOrder = yspec.ParameterValue.FirstOrDefault(z => z.ParameterType.Iid == RequirementsModule.PluginSettings.OrderSettings.ParameterType)?.Value.FirstOrDefault();
int xOrderKey, yOrderKey;
if (xOrder != null && int.TryParse(xOrder, out xOrderKey) && yOrder != null && int.TryParse(yOrder, out yOrderKey))
{
return(xOrderKey > yOrderKey
? 1
: xOrderKey < yOrderKey
? -1
: shortNameThingComparer.Compare(xspec, yspec));
}
return(shortNameThingComparer.Compare(xspec, yspec));
}
return(shortNameThingComparer.Compare(xspec, yspec));
}
/// <summary>
/// Compares two <see cref="IRowViewModelBase{Thing}"/>
/// </summary>
/// <param name="x">The first <see cref="IRowViewModelBase{Thing}"/> to compare</param>
/// <param name="y">The second <see cref="IRowViewModelBase{Thing}"/> to compare</param>
/// <returns>
/// Less than zero : x is "lower" than y
/// Zero: x "equals" y.
/// Greater than zero: x is "greater" than y.
/// </returns>
public int Compare(IRowViewModelBase <Thing> x, IRowViewModelBase <Thing> y)
{
if (x == null || y == null)
{
throw new ArgumentNullException();
}
var xType = x.GetType();
var yType = y.GetType();
if (!PermissibleRowTypes.Any(type => type.IsAssignableFrom(xType)) || !PermissibleRowTypes.Any(type => type.IsAssignableFrom(yType)))
{
throw new NotSupportedException("The list contains other types of row than the specified ones.");
}
if (typeof(RequirementRowViewModel).IsAssignableFrom(xType) && typeof(RequirementsGroupRowViewModel).IsAssignableFrom(yType))
{
return(-1);
}
if (typeof(RequirementsGroupRowViewModel).IsAssignableFrom(xType) && typeof(RequirementRowViewModel).IsAssignableFrom(yType))
{
return(1);
}
if (xType == yType)
{
return(shortNameThingComparer.Compare((IShortNamedThing)x.Thing, (IShortNamedThing)y.Thing));
}
// x is a group, y is ElementUsageRow
return(1);
}
