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//
// System.ComponentModel.PropertyDescriptor.cs
//
// Author:
// Miguel de Icaza (miguel@ximian.com)
//
// (C) Ximian, Inc. http://www.ximian.com
//
using System;
using System.Collections;
namespace System.ComponentModel {
public abstract class PropertyDescriptor : MemberDescriptor {
protected PropertyDescriptor (MemberDescriptor reference)
: base (reference)
{
}
protected PropertyDescriptor (MemberDescriptor reference, Attribute [] attrs)
: base (reference, attrs)
{
}
protected PropertyDescriptor (string name, Attribute [] attrs)
: base (name, attrs)
{
}
public abstract Type ComponentType { get; }
[MonoTODO]
public virtual TypeConverter Converter {
get {
// FIXME: Implement me.
return null;
}
}
public virtual bool IsLocalizable {
get {
foreach (Attribute attr in AttributeArray){
if (attr is LocalizableAttribute){
return ((LocalizableAttribute) attr).IsLocalizable;
}
}
return false;
}
}
public abstract bool IsReadOnly { get; }
public abstract Type PropertyType { get; }
public DesignerSerializationVisibility SerializationVisibility {
get {
foreach (Attribute attr in AttributeArray){
if (attr is DesignerSerializationVisibilityAttribute){
DesignerSerializationVisibilityAttribute a;
a = (DesignerSerializationVisibilityAttribute) attr;
return a.Visibility;
}
}
//
// Is this a good default if we cant find the property?
//
return DesignerSerializationVisibility.Hidden;
}
}
Hashtable notifiers;
public virtual void AddValueChanged (object component, EventHandler handler)
{
EventHandler component_notifiers;
if (component == null)
throw new ArgumentNullException ("component");
if (handler == null)
throw new ArgumentNullException ("handler");
if (notifiers == null)
notifiers = new Hashtable ();
component_notifiers = (EventHandler) notifiers [component];
if (component_notifiers != null)
component_notifiers += handler;
else
notifiers [component] = handler;
}
protected virtual void OnValueChanged (object component, EventArgs e)
{
if (notifiers == null)
return;
EventHandler component_notifiers = (EventHandler) notifiers [component];
if (component_notifiers == null)
return;
component_notifiers (component, e);
}
}
}
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