/// <summary>
/// Builds the options entries from the type.
/// </summary>
/// <param name="forType">The type of the options class.</param>
/// <returns>A list of all public properties annotated for options dialogs.</returns>
internal static IDictionary <string, OptionsList> BuildOptions(Type forType)
{
var entries = new SortedList <string, OptionsList>(8);
OptionAttribute oa;
DynamicOptionAttribute doa;
foreach (var prop in forType.GetProperties())
{
// Must have the annotation
foreach (var attr in prop.GetCustomAttributes(false))
{
if ((oa = OptionAttribute.CreateFrom(attr)) != null)
{
// Attempt to find a class that will represent it
var entry = CreateOptions(prop, oa);
if (entry != null)
{
AddToCategory(entries, entry);
}
break;
}
else if ((doa = DynamicOptionAttribute.CreateFrom(attr)) != null)
{
AddToCategory(entries, DynamicOptionsEntry.Create(prop.Name, doa));
break;
}
}
}
return(entries);
}
/// <summary>
/// Creates a new dynamic options entry from a [DynamicOption] attribute.
/// </summary>
/// <param name="name">The property name.</param>
/// <param name="attr">The attribute giving the type of the handler.</param>
/// <returns>A dynamic options entry for that type.</returns>
internal static DynamicOptionsEntry Create(string name, DynamicOptionAttribute attr)
{
var targetType = attr.Handler;
object handler;
if (targetType == null)
{
throw new ArgumentNullException("targetType");
}
try {
handler = Activator.CreateInstance(targetType);
} catch (Exception e) {
// Log error
PUtil.LogError("Cannot create options handler for " + name + ":");
PUtil.LogException(e.GetBaseException() ?? e);
handler = null;
}
return(new DynamicOptionsEntry(name, attr.Category, handler));
}
