public bool ClearOptionValue(string optionId)
{
if (this.Parent == null)
{
// Can't clear options on the Global options
return(false);
}
if (OptionsSetLocally.Contains(optionId))
{
object currentValue = OptionsSetLocally[optionId];
OptionsSetLocally.Remove(optionId);
EditorOptionDefinition definition = _factory.GetOptionDefinitionOrThrow(optionId);
object inheritedValue = this.GetOptionValue(definition);
// See what the inherited option value was. If it isn't changing,
// then we don't need to raise an event.
if (!object.Equals(currentValue, inheritedValue))
{
RaiseChangedEvent(definition);
}
return(true);
}
return(false);
}
/// <summary>
/// Get the given option from this (or its ancestors). The caller should have already checked to ensure
/// the given option is valid in the scope being requested.
/// </summary>
/// <param name="definition">Definition of the option to find.</param>
/// <returns>The option's current value.</returns>
internal object GetOptionForChild(EditorOptionDefinition definition)
{
if (OptionsSetLocally.Contains(definition.Name))
{
return(OptionsSetLocally[definition.Name]);
}
if (_parent == null)
{
return(definition.DefaultValue);
}
return(_parent.GetOptionForChild(definition));
}
public bool IsOptionDefined(string optionId, bool localScopeOnly)
{
if (localScopeOnly && (_parent != null)) //All options with valid definitions are set for the root.
{
return(OptionsSetLocally.Contains(optionId));
}
EditorOptionDefinition definition = _factory.GetOptionDefinition(optionId);
if ((definition != null) &&
(Scope == null || definition.IsApplicableToScope(Scope)))
{
return(true);
}
return(false);
}
public bool IsOptionDefined <T>(EditorOptionKey <T> key, bool localScopeOnly)
{
if (localScopeOnly && (_parent != null)) //All options with valid definitions are set for the root.
{
return(OptionsSetLocally.Contains(key.Name));
}
EditorOptionDefinition definition = _factory.GetOptionDefinition(key.Name);
if ((definition != null) &&
(Scope == null || definition.IsApplicableToScope(Scope)) &&
definition.ValueType.IsEquivalentTo(typeof(T)))
{
return(true);
}
return(false);
}
