#region License Information
/* HeuristicLab
* Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
*
* This file is part of HeuristicLab.
*
* HeuristicLab is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* HeuristicLab is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with HeuristicLab. If not, see .
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using HeuristicLab.Core;
using HeuristicLab.Data;
namespace HeuristicLab.Constraints {
public class ItemTypeConstraint : ConstraintBase {
private Type type;
public Type Type {
get { return type; }
set {
type = value;
OnChanged();
}
}
public override string Description {
get {
return @"The ItemTypeConstraint limits the type of a given item.
If the item is a ConstrainedItemList, any containing elements are limited to the type and not the ConstrainedItemList itself.";
}
}
public ItemTypeConstraint() {
type = typeof(ItemBase);
}
public ItemTypeConstraint(Type type) {
this.type = type;
}
public override bool Check(IItem data) {
ConstrainedItemList list = (data as ConstrainedItemList);
if (list != null) {
for (int i = 0; i < list.Count; i++)
if (!list[i].GetType().Equals(type)) return false;
return true;
}
return data.GetType().Equals(type);
}
public override IView CreateView() {
return new ItemTypeConstraintView(this);
}
public override void Accept(IConstraintVisitor visitor) {
visitor.Visit(this);
}
#region clone & persistence
public override object Clone(IDictionary clonedObjects) {
ItemTypeConstraint clone = new ItemTypeConstraint(type);
clonedObjects.Add(Guid, clone);
return clone;
}
//public override XmlNode GetXmlNode(string name, XmlDocument document, IDictionary persistedObjects) {
// XmlNode node = base.GetXmlNode(name, document, persistedObjects);
// XmlAttribute itemTypeAttribute = document.CreateAttribute("ItemType");
// itemTypeAttribute.Value = PersistenceManager.BuildTypeString(Type);
// node.Attributes.Append(itemTypeAttribute);
// return node;
//}
public override void Persist(string name, XmlWriter writer, IDictionary persistedObjects) {
base.Persist(name, writer, persistedObjects);
writer.WriteAttributeString("ItemType", PersistenceManager.BuildTypeString(Type));
}
public override void Populate(XmlNode node, IDictionary restoredObjects) {
base.Populate(node, restoredObjects);
XmlAttribute itemTypeAttribute = node.Attributes["ItemType"];
type = Type.GetType(itemTypeAttribute.Value);
}
#endregion
}
}