/// <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);
}
/// <summary>
/// Compares two <see cref="IRowViewModelBase{Thing}"/> of the same type
/// </summary>
/// <param name="x">The First <see cref="IRowViewModelBase{Thing}"/></param>
/// <param name="y">The second <see cref="IRowViewModelBase{Thing}"/></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)
{
var xType = x.GetType();
var yType = y.GetType();
if (!PermissibleRowTypes.Contains(xType) || !PermissibleRowTypes.Contains(yType))
{
throw new NotSupportedException("The list contains other types of row than the specified ones.");
}
var isxRowPrameterRow = typeof(ParameterOrOverrideBaseRowViewModel).IsAssignableFrom(xType);
var isyRowParameterRow = typeof(ParameterOrOverrideBaseRowViewModel).IsAssignableFrom(yType);
if ((isxRowPrameterRow && isyRowParameterRow) || (xType == yType))
{
return(this.CompareSameType(x, y, yType));
}
if (typeof(ParameterOrOverrideBaseRowViewModel).IsAssignableFrom(xType))
{
return(-1);
}
// xtype is ParameterGroupRow, y parameterOrOverrideBase
return(1);
}
/// <summary>
/// Tries to add values to a <see cref="List{T}"/> from a <see cref="IRowViewModelBase{Thing}"/>
/// and its childrows
/// </summary>
/// <typeparam name="T">
/// The type of object the <see cref="List{T}"/> holds data for.
/// </typeparam>
/// <param name="rowViewModel">
/// The <see cref="IRowViewModelBase{Thing}"/> to be searched.
/// </param>
/// <param name="values">
/// The <see cref="List{T}"/> containing all the found values.
/// </param>
private void TryAddValuesFromRowViewModel <T>(IRowViewModelBase <Thing> rowViewModel, ref List <T> values)
{
var propInfo = rowViewModel.GetType().GetProperty(this.FieldName);
if (propInfo != null)
{
var value = propInfo.GetValue(rowViewModel);
if (value is T typedValue)
{
values.Add(typedValue);
}
}
this.TryAddValuesFromRowViewModels(rowViewModel.ContainedRows, ref values);
}
/// <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 (xType == yType)
{
return(this.CompareSameType(x, y, yType));
}
if ((typeof(ParameterOrOverrideBaseRowViewModel).IsAssignableFrom(xType) || typeof(ParameterSubscriptionRowViewModel).IsAssignableFrom(xType)) &&
(typeof(ParameterOrOverrideBaseRowViewModel).IsAssignableFrom(yType) || typeof(ParameterSubscriptionRowViewModel).IsAssignableFrom(yType)))
{
return(this.CompareSameType(x, y, yType));
}
if (typeof(ParameterOrOverrideBaseRowViewModel).IsAssignableFrom(xType) ||
typeof(ParameterSubscriptionRowViewModel).IsAssignableFrom(xType))
{
return(-1);
}
if (typeof(ElementUsageRowViewModel).IsAssignableFrom(xType))
{
return(1);
}
// x is a ParameterGroupRow
if (typeof(ParameterOrOverrideBaseRowViewModel).IsAssignableFrom(yType) ||
typeof(ParameterSubscriptionRowViewModel).IsAssignableFrom(yType))
{
return(1);
}
// x is ParameterGroupRow, y is ElementUsageRow
return(-1);
}
/// <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)))
{
throw new ArgumentException(string.Format("argument x is of type {0} which is not supported", xType.Name));
}
if (!PermissibleRowTypes.Any(type => type.IsAssignableFrom(yType)))
{
throw new ArgumentException(string.Format("argument y is of type {0} which is not supported", yType.Name));
}
return(BreadCrumbComparer.Compare((IBreadCrumb)x, (IBreadCrumb)y));
}
