/// <summary>Loads this counter systems symbols.</summary>
protected override void LoadSymbols(Css.Style style)
{
// Get a set:
Css.Value set=style[Css.Properties.AdditiveSymbols.GlobalProperty];
if(set==null){
return;
}
Symbols=new AdditiveTuple[set.Count];
for(int i=0;i<Symbols.Length;i++){
// Get both values:
Css.Value a=set[i][0];
Css.Value b=set[i][1];
// Allow them to be defined either way around:
int weight;
string symbol;
if(b is Css.Units.DecimalUnit){
weight=b.GetInteger(null,null);
symbol=a.Text;
}else{
weight=a.GetInteger(null,null);
symbol=b.Text;
}
Symbols[i]=new AdditiveTuple(symbol,weight);
}
}
/// <summary>Gets the given number as handled by this counter system.</summary>
protected override string GetPositive(int value)
{
if (value == 0)
{
// Got a tuple of weight 0? It'll always be the one at the end:
AdditiveTuple lastTuple = Symbols[Symbols.Length - 1];
if (lastTuple.Weight == 0)
{
return(lastTuple.Symbol);
}
return("");
}
// Index of the current tuple:
int currentTuple = -1;
int max = Symbols.Length - 1;
while (value > 0 && currentTuple < max)
{
// Pop a symbol from the list:
currentTuple++;
// Append the current symbol this many times:
int repeatCount = value / Symbols[currentTuple].Weight;
for (int i = 0; i < repeatCount; i++)
{
// Append:
Builder.Append(Symbols[currentTuple].Symbol);
}
// Decrement value:
value -= repeatCount * Symbols[currentTuple].Weight;
}
if (value != 0)
{
// Can't actually be represented by this counter style.
Builder.Length = 0;
// Fallback:
return(null);
}
return(Build());
}