/// <summary>
/// Constructor
/// </summary>
/// <param name="value">The value that the element should wrap.</param>
/// <param name="outputAttribute">The output attribute for the value.</param>
public ValueElement(object value, OutputAttribute outputAttribute)
{
bool gotValue = false;
this.RealValue = value;
if (value is bool b)
{
Keyword keyword = b
? (outputAttribute.TrueKeyword == Keyword.Undefined ? Keyword.On : outputAttribute.TrueKeyword)
: (outputAttribute.FalseKeyword == Keyword.Undefined ? Keyword.Off : outputAttribute.FalseKeyword);
if (keyword == Keyword.Null)
{
this.active = false;
return;
}
value = keyword;
}
if (outputAttribute.Rgb && value is Color color)
{
value = Color.ToRgb(color);
}
switch (value)
{
case Enum _:
KeywordAttribute attr =
value.GetType().GetField(value.ToString() !).GetCustomAttributeFast <KeywordAttribute>();
if (attr != null)
{
this.Value = KeywordAttribute.ToString(attr.Keyword);
if (string.IsNullOrEmpty(this.Value))
{
this.Value = null;
}
gotValue = true;
}
break;
case IValue v:
if (!v.HasValue)
{
this.Value = null;
gotValue = true;
}
break;
}
if (!gotValue)
{
this.Value = value.ToString();
}
}
public static string ToString(Keyword keyword)
{
string name;
lock (Names)
{
if (!Names.TryGetValue(keyword, out name))
{
FieldInfo field = typeof(Keyword).GetField(keyword.ToString());
KeywordAttribute attr = field.GetCustomAttributeFast <KeywordAttribute>();
name = attr.ToString();
Names.Add(keyword, name);
}
}
return(name);
}
/// <inheritdoc />
protected override string GetKeyword(ElementContext context)
{
return(this.active
? base.GetKeyword(context)
: KeywordAttribute.ToString(context.OutputAttribute.FalseKeyword));
}
/// <summary>Gets the keyword used by this element.</summary>
/// <param name="context"></param>
protected virtual string GetKeyword(ElementContext context)
{
return(KeywordAttribute.ToString(context.OutputAttribute.Keyword));
}
public override string ToString()
{
return(this.Content == null
? null
: string.Format("{0} {1}", KeywordAttribute.ToString(this.Keyword), this.Content));
}
