/// <summary>
/// Produce a style for the given context.
/// </summary>
/// <param name="ic2sc">Context.</param>
/// <returns>Style or NULL.</returns>
public override Style For(ICategory2StyleContext ic2sc)
{
if (BasedOn == null)
{
return(null);
}
var match = Entries.SingleOrDefault(xx => xx.Compare(ic2sc.Values[0]));
if (match == null)
{
return(null);
}
var style = BasedOn.Override(Path.FillProperty, match.Color);
return(style);
}
/// <summary>
/// Create a style or NULL.
/// </summary>
/// <param name="ic2sc">Item context.</param>
/// <returns>Style or NULL.</returns>
public override Style For(ICategory2StyleContext ic2sc)
{
if (BasedOn == null)
{
return(null);
}
InfoFor(ic2sc.ValueExtents.Minimum, ic2sc.ValueExtents.Maximum, ic2sc.Values[0], out int red, out int green, out int blue);
string skey = $"r{red}_g{green}_b{blue}";
if (StyleMap.TryGetValue(skey, out Style stx))
{
return(stx);
}
var brush = BrushFor(red, green, blue);
var style = BasedOn.Override(Path.FillProperty, brush);
StyleMap.Add(skey, style);
return(style);
}
