/// <summary>
/// Tests equality of property descriptor with object</summary>
/// <param name="obj">Object to compare to</param>
/// <returns>True iff property descriptors are identical</returns>
/// <remarks>Implements Equals() for organizing descriptors in grid controls</remarks>
public override bool Equals(object obj)
{
ChildPropertyDescriptor other = obj as ChildPropertyDescriptor;
if (other == null)
{
return(false);
}
return(m_childInfo == other.m_childInfo);
}
private static PropertyDescriptor GetDescriptor(
DomNodeType type,
XmlNode annotation,
string name,
string[] segments)
{
PropertyDescriptor desc = null;
// Get mandatory display name
XmlAttribute displayNameAttr = annotation.Attributes["displayName"];
if (displayNameAttr != null)
{
if (string.IsNullOrEmpty(name))
{
throw new AnnotationException(string.Format(
"Required name attribute is null or empty.\r\nType: {0}\r\nElement: {1}",
type.Name, annotation.Name));
}
string displayName = displayNameAttr.Value;
if (string.IsNullOrEmpty(displayName))
{
displayName = name;
}
// Get optional annotations
string category = GetAnnotation(annotation, "category");
string description = GetAnnotation(annotation, "description");
bool readOnly = GetAnnotation(annotation, "readOnly") == "true";
object editor = CreateObject <object>(type, annotation, "editor");
TypeConverter typeConverter = CreateObject <TypeConverter>(type, annotation, "converter");
if (annotation.Name == "scea.dom.editors.attribute")
{
// Attribute annotation
if (segments == null)
{
throw new AnnotationException("Unnamed attribute");
}
if (segments.Length == 1) // local attribute
{
AttributeInfo metaAttr = type.GetAttributeInfo(name);
if (metaAttr == null)
{
throw new AnnotationException("Type doesn't have this attribute");
}
desc = new AttributePropertyDescriptor(
displayName, metaAttr,
category, description, readOnly, editor, typeConverter);
}
else // descendant attribute
{
ChildInfo[] metaElements = GetPath(type, segments, segments.Length - 1);
DomNodeType childType = metaElements[segments.Length - 2].Type;
AttributeInfo metaAttr = childType.GetAttributeInfo(segments[segments.Length - 1]);
if (metaAttr == null)
{
throw new AnnotationException("Descendant type doesn't have this attribute");
}
desc = new ChildAttributePropertyDescriptor(
displayName, metaAttr, metaElements,
category, description, readOnly, editor, typeConverter);
}
}
else if (annotation.Name == "scea.dom.editors.child")
{
// Child value annotation
ChildInfo element = type.GetChildInfo(name);
if (element == null)
{
throw new AnnotationException("Type doesn't have this element");
}
desc = new ChildPropertyDescriptor(
displayName, element,
category, description, readOnly, editor, typeConverter);
}
}
return(desc);
}
