IControlConverter IConverterContext.Convert(object obj, XmlWriter writer, IConverterContext context, ConverterArguments args)
{
return HtmlFactory.Convert(obj, context ?? (this as IConverterContext), writer, args);
}
/// <summary>Creates a <see cref="ControlConverter"/> for a control.</summary>
/// <param name="obj">The control to convert.</param>
/// <param name="context">The context in which the conversion takes place.</param>
/// <param name="writer">XML writer to receive the converted HTML.</param>
/// <param name="args">Arguments for the conversion.</param>
/// <returns></returns>
public static IControlConverter Convert(object obj, IConverterContext context, XmlWriter writer, ConverterArguments args)
{
Type originaltype, type, convertertype = null;
// ascend the derivation path until ...
type = originaltype = obj.GetType();
while (null != type)
{
// a previously used converter matches
if (_typemap.TryGetValue(type, out convertertype))
{
break;
}
// or a converter existings in the Factory namespace.
if (null != (convertertype = LookupConverter(type)))
{
break;
}
type = type.BaseType;
}
if (null == convertertype)
{
throw new Exception("unable to convert [" + obj.GetType().FullName + "].");
}
// using a baseclass converter?
var baseclassconverter = type != originaltype;
/*if(originaltype.GetCustomAttributes(false).OfType<GeneratorIgnoreAttribute>().Any())
{
baseclassconverter = false;
}*/
// TraceTarget.Trace("using [{0}] to convert [{1}] ...", convertertype.FullName, originaltype.FullName);
// construct the converter object
var constructor = convertertype.GetConstructor(new Type[0]);
if (null == constructor)
{
throw new ConverterException(ErrorCode.InvalidConverterType,
"type [" + convertertype.FullName + "] constructor unavailable.");
}
var converter = constructor.Invoke(new object[0]) as IControlConverter;
if (null == converter)
{
throw new ConverterException(ErrorCode.InvalidConverterType,
"type [" + convertertype.FullName + "] does not support converter interface.");
}
converter.Context = context;
converter.IsSubClass = baseclassconverter;
converter.SetControl(obj);
converter.Convert(writer, args);
if (converter.IsTypeRegistrable)
{
// add reference ...
context.TriggerItemReference(originaltype.FullName);
}
return converter;
}
