/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="items"></param>
/// <param name="stringbuilder"></param>
/// <param name="rest"></param>
/// <param name="formatProvider"></param>
/// <returns>True if collection was shown completely</returns>
public static bool ShowCollectionValue <T>(ICollectionValue <T> items, StringBuilder stringbuilder, ref int rest, IFormatProvider formatProvider)
{
string startdelim = "{ ", enddelim = " }";
bool showIndexes = false;
bool showMultiplicities = false;
//TODO: do not test here at run time, but select code at compile time
// perhaps by delivering the print type to this metod
IList <T> list;
ICollection <T> coll = items as ICollection <T>;
if ((list = items as IList <T>) != null)
{
startdelim = "[ ";
enddelim = " ]";
//TODO: should have been (items as IIndexed<T>).IndexingSpeed
showIndexes = list.IndexingSpeed == Speed.Constant;
}
else if (coll != null)
{
if (coll.AllowsDuplicates)
{
startdelim = "{{ ";
enddelim = " }}";
if (coll.DuplicatesByCounting)
{
showMultiplicities = true;
}
}
}
stringbuilder.Append(startdelim);
rest -= 2 * startdelim.Length;
bool first = true;
bool complete = true;
int index = 0;
if (showMultiplicities)
{
foreach (KeyValuePair <T, int> p in coll.ItemMultiplicities())
{
complete = false;
if (rest <= 0)
{
break;
}
if (first)
{
first = false;
}
else
{
stringbuilder.Append(", ");
rest -= 2;
}
if (complete = Showing.Show(p.Key, stringbuilder, ref rest, formatProvider))
{
string multiplicityString = string.Format("(*{0})", p.Value);
stringbuilder.Append(multiplicityString);
rest -= multiplicityString.Length;
}
}
}
else
{
foreach (T x in items)
{
complete = false;
if (rest <= 0)
{
break;
}
if (first)
{
first = false;
}
else
{
stringbuilder.Append(", ");
rest -= 2;
}
if (showIndexes)
{
string indexString = string.Format("{0}:", index++);
stringbuilder.Append(indexString);
rest -= indexString.Length;
}
complete = Showing.Show(x, stringbuilder, ref rest, formatProvider);
}
}
if (!complete)
{
stringbuilder.Append("...");
rest -= 3;
}
stringbuilder.Append(enddelim);
return(complete);
}
/// <summary>
///
/// </summary>
/// <param name="format"></param>
/// <param name="formatProvider"></param>
/// <returns></returns>
public string ToString(string format, IFormatProvider formatProvider)
{
return(Showing.ShowString(this, format, formatProvider));
}