static ICssValue Extract(Tuple <ICssValue, ICssValue> src, Int32 index)
{
var hv = src.Item1;
var vv = src.Item2;
var h = hv as CssValueList;
var v = vv as CssValueList;
if (h != null)
{
hv = Find(h, index);
}
if (vv == null)
{
return(hv);
}
var value = new CssValueList();
value.Add(hv);
if (v != null)
{
vv = Find(v, index);
}
value.Add(vv);
return(value);
}
static ICssValue Transform(Tuple <BgLayer[], FinalBgLayer> data, Func <BgLayer, ICssValue> selector)
{
var final = new BgLayer(data.Item2.Item1, data.Item2.Item2, data.Item2.Item3, data.Item2.Item4, data.Item2.Item5, data.Item2.Item6);
if (data.Item1.Length == 0)
{
return(selector(final));
}
var list = new CssValueList();
foreach (var item in data.Item1)
{
list.Add(selector(item));
}
list.Add(selector(final));
return(list);
}
protected static Boolean ExpandPeriodic(CssValueList list)
{
if (list.Length == 0 || list.Length > 4)
{
return(false);
}
if (list.Length == 1)
{
list.Add(list[0]);
}
if (list.Length == 2)
{
list.Add(list[0]);
}
if (list.Length == 3)
{
list.Add(list[1]);
}
return(true);
}