#region License Information /* HeuristicLab * Copyright (C) 2002-2010 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.Drawing; using HeuristicLab.Common; using HeuristicLab.Core; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; namespace HeuristicLab.Clients.OKB { [Item("ItemWrapper", "A wrapper which wraps an IItem.")] [StorableClass] public class ItemWrapper : IItem where T : class, IItem { private T wrappedItem; protected virtual T WrappedItem { get { return wrappedItem; } set { if (value == null) throw new ArgumentNullException("WrappedItem", "WrappedItem cannot be null."); if (value != wrappedItem) { DeregisterWrappedItemEvents(); wrappedItem = value; RegisterWrappedItemEvents(); OnToStringChanged(); OnItemImageChanged(); OnWrappedItemChanged(); } } } public virtual string ItemName { get { return wrappedItem.ItemName; } } public virtual string ItemDescription { get { return wrappedItem.ItemDescription; } } public Version ItemVersion { get { return wrappedItem.ItemVersion; } } public virtual Image ItemImage { get { return WrappedItem.ItemImage; } } #region Persistence Properties [Storable(Name = "WrappedItem")] private T StorableWrappedItem { get { return wrappedItem; } set { wrappedItem = value; RegisterWrappedItemEvents(); } } #endregion [StorableConstructor] protected ItemWrapper(bool deserializing) { } protected ItemWrapper(ItemWrapper original, Cloner cloner) { cloner.RegisterClonedObject(original, this); wrappedItem = cloner.Clone(original.wrappedItem); RegisterWrappedItemEvents(); } public ItemWrapper(T item) { if (item == null) throw new ArgumentNullException("item", "ItemWrapper cannot wrap a null reference."); wrappedItem = item; RegisterWrappedItemEvents(); } public object Clone() { return Clone(new Cloner()); } public virtual IDeepCloneable Clone(Cloner cloner) { return new ItemWrapper(this, cloner); } public override string ToString() { return wrappedItem.ToString(); } protected virtual void OnWrappedItemChanged() { } #region Events public event EventHandler ItemImageChanged; protected virtual void OnItemImageChanged() { EventHandler handler = ItemImageChanged; if (handler != null) handler(this, EventArgs.Empty); } public event EventHandler ToStringChanged; protected virtual void OnToStringChanged() { EventHandler handler = ToStringChanged; if (handler != null) handler(this, EventArgs.Empty); } protected virtual void RegisterWrappedItemEvents() { WrappedItem.ToStringChanged += new EventHandler(WrappedItem_ToStringChanged); WrappedItem.ItemImageChanged += new EventHandler(WrappedItem_ItemImageChanged); } protected virtual void DeregisterWrappedItemEvents() { WrappedItem.ToStringChanged -= new EventHandler(WrappedItem_ToStringChanged); WrappedItem.ItemImageChanged -= new EventHandler(WrappedItem_ItemImageChanged); } protected virtual void WrappedItem_ToStringChanged(object sender, EventArgs e) { OnToStringChanged(); } protected virtual void WrappedItem_ItemImageChanged(object sender, EventArgs e) { OnItemImageChanged(); } #endregion } }