chovy-gm/Flobbster.Windows.Forms/PropertyBag.cs

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing.Design;

namespace Flobbster.Windows.Forms
{
	public class PropertyBag : ICustomTypeDescriptor
	{
		[Serializable]
		public class PropertySpecCollection : IList, ICollection, IEnumerable
		{
			private ArrayList innerArray;

			public int Count
			{
				get
				{
					return innerArray.Count;
				}
			}

			public bool IsFixedSize
			{
				get
				{
					return false;
				}
			}

			public bool IsReadOnly
			{
				get
				{
					return false;
				}
			}

			public bool IsSynchronized
			{
				get
				{
					return false;
				}
			}

			object ICollection.SyncRoot
			{
				get
				{
					return null;
				}
			}

			public PropertySpec this[int index]
			{
				get
				{
					return (PropertySpec)innerArray[index];
				}
				set
				{
					innerArray[index] = value;
				}
			}

			object IList.this[int index]
			{
				get
				{
					return this[index];
				}
				set
				{
					this[index] = (PropertySpec)value;
				}
			}

			public PropertySpecCollection()
			{
				innerArray = new ArrayList();
			}

			public int Add(PropertySpec value)
			{
				return innerArray.Add(value);
			}

			public void AddRange(PropertySpec[] array)
			{
				innerArray.AddRange(array);
			}

			public void Clear()
			{
				innerArray.Clear();
			}

			public bool Contains(PropertySpec item)
			{
				return innerArray.Contains(item);
			}

			public bool Contains(string name)
			{
				foreach (PropertySpec item in innerArray)
				{
					if (item.Name == name)
					{
						return true;
					}
				}
				return false;
			}

			public void CopyTo(PropertySpec[] array)
			{
				innerArray.CopyTo(array);
			}

			public void CopyTo(PropertySpec[] array, int index)
			{
				innerArray.CopyTo(array, index);
			}

			public IEnumerator GetEnumerator()
			{
				return innerArray.GetEnumerator();
			}

			public int IndexOf(PropertySpec value)
			{
				return innerArray.IndexOf(value);
			}

			public int IndexOf(string name)
			{
				int num = 0;
				foreach (PropertySpec item in innerArray)
				{
					if (item.Name == name)
					{
						return num;
					}
					num++;
				}
				return -1;
			}

			public void Insert(int index, PropertySpec value)
			{
				innerArray.Insert(index, value);
			}

			public void Remove(PropertySpec obj)
			{
				innerArray.Remove(obj);
			}

			public void Remove(string name)
			{
				int index = IndexOf(name);
				RemoveAt(index);
			}

			public void RemoveAt(int index)
			{
				innerArray.RemoveAt(index);
			}

			public PropertySpec[] ToArray()
			{
				return (PropertySpec[])innerArray.ToArray(typeof(PropertySpec));
			}

			void ICollection.CopyTo(Array array, int index)
			{
				CopyTo((PropertySpec[])array, index);
			}

			int IList.Add(object value)
			{
				return Add((PropertySpec)value);
			}

			bool IList.Contains(object obj)
			{
				return Contains((PropertySpec)obj);
			}

			int IList.IndexOf(object obj)
			{
				return IndexOf((PropertySpec)obj);
			}

			void IList.Insert(int index, object value)
			{
				Insert(index, (PropertySpec)value);
			}

			void IList.Remove(object value)
			{
				Remove((PropertySpec)value);
			}
		}

		private class PropertySpecDescriptor : PropertyDescriptor
		{
			private PropertyBag bag;

			private PropertySpec item;

			public override Type ComponentType
			{
				get
				{
					return item.GetType();
				}
			}

			public override bool IsReadOnly
			{
				get
				{
					return Attributes.Matches(ReadOnlyAttribute.Yes);
				}
			}

			public override Type PropertyType
			{
				get
				{
					return Type.GetType(item.TypeName);
				}
			}

			public PropertySpecDescriptor(PropertySpec item, PropertyBag bag, string name, Attribute[] attrs)
				: base(name, attrs)
			{
				this.bag = bag;
				this.item = item;
			}

			public override bool CanResetValue(object component)
			{
				if (item.DefaultValue == null)
				{
					return false;
				}
				return !GetValue(component).Equals(item.DefaultValue);
			}

			public override object GetValue(object component)
			{
				PropertySpecEventArgs propertySpecEventArgs = new PropertySpecEventArgs(item, null);
				bag.OnGetValue(propertySpecEventArgs);
				return propertySpecEventArgs.Value;
			}

			public override void ResetValue(object component)
			{
				SetValue(component, item.DefaultValue);
			}

			public override void SetValue(object component, object value)
			{
				PropertySpecEventArgs e = new PropertySpecEventArgs(item, value);
				bag.OnSetValue(e);
			}

			public override bool ShouldSerializeValue(object component)
			{
				object value = GetValue(component);
				if (item.DefaultValue == null && value == null)
				{
					return false;
				}
				return !value.Equals(item.DefaultValue);
			}
		}

		private string defaultProperty;

		private PropertySpecCollection properties;

		public string DefaultProperty
		{
			get
			{
				return defaultProperty;
			}
			set
			{
				defaultProperty = value;
			}
		}

		public PropertySpecCollection Properties
		{
			get
			{
				return properties;
			}
		}

		public event PropertySpecEventHandler GetValue;

		public event PropertySpecEventHandler SetValue;

		public PropertyBag()
		{
			defaultProperty = null;
			properties = new PropertySpecCollection();
		}

		protected virtual void OnGetValue(PropertySpecEventArgs e)
		{
			if (this.GetValue != null)
			{
				this.GetValue(this, e);
			}
		}

		protected virtual void OnSetValue(PropertySpecEventArgs e)
		{
			if (this.SetValue != null)
			{
				this.SetValue(this, e);
			}
		}

		AttributeCollection ICustomTypeDescriptor.GetAttributes()
		{
			return TypeDescriptor.GetAttributes(this, true);
		}

		string ICustomTypeDescriptor.GetClassName()
		{
			return TypeDescriptor.GetClassName(this, true);
		}

		string ICustomTypeDescriptor.GetComponentName()
		{
			return TypeDescriptor.GetComponentName(this, true);
		}

		TypeConverter ICustomTypeDescriptor.GetConverter()
		{
			return TypeDescriptor.GetConverter(this, true);
		}

		EventDescriptor ICustomTypeDescriptor.GetDefaultEvent()
		{
			return TypeDescriptor.GetDefaultEvent(this, true);
		}

		PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty()
		{
			PropertySpec propertySpec = null;
			if (defaultProperty != null)
			{
				int index = properties.IndexOf(defaultProperty);
				propertySpec = properties[index];
			}
			if (propertySpec != null)
			{
				return new PropertySpecDescriptor(propertySpec, this, propertySpec.Name, null);
			}
			return null;
		}

		object ICustomTypeDescriptor.GetEditor(Type editorBaseType)
		{
			return TypeDescriptor.GetEditor(this, editorBaseType, true);
		}

		EventDescriptorCollection ICustomTypeDescriptor.GetEvents()
		{
			return TypeDescriptor.GetEvents(this, true);
		}

		EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes)
		{
			return TypeDescriptor.GetEvents(this, attributes, true);
		}

		PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties()
		{
			return ((ICustomTypeDescriptor)this).GetProperties(new Attribute[0]);
		}

		PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
		{
			ArrayList arrayList = new ArrayList();
			foreach (PropertySpec property in properties)
			{
				ArrayList arrayList2 = new ArrayList();
				if (property.Category != null)
				{
					arrayList2.Add(new CategoryAttribute(property.Category));
				}
				if (property.Description != null)
				{
					arrayList2.Add(new DescriptionAttribute(property.Description));
				}
				if (property.EditorTypeName != null)
				{
					arrayList2.Add(new EditorAttribute(property.EditorTypeName, typeof(UITypeEditor)));
				}
				if (property.ConverterTypeName != null)
				{
					arrayList2.Add(new TypeConverterAttribute(property.ConverterTypeName));
				}
				if (property.Attributes != null)
				{
					arrayList2.AddRange(property.Attributes);
				}
				Attribute[] attrs = (Attribute[])arrayList2.ToArray(typeof(Attribute));
				PropertySpecDescriptor value = new PropertySpecDescriptor(property, this, property.Name, attrs);
				arrayList.Add(value);
			}
			PropertyDescriptor[] array = (PropertyDescriptor[])arrayList.ToArray(typeof(PropertyDescriptor));
			return new PropertyDescriptorCollection(array);
		}

		object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd)
		{
			return this;
		}
	}
}