145 lines
3.7 KiB
C#
Executable File
145 lines
3.7 KiB
C#
Executable File
/* CommentPool.cs
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* part of zaaReloaded2
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*
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* Copyright 2015-2017 Daniel Kraus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace zaaReloaded2.Controller.Comments
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{
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/// <summary>
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/// A pool of comments.
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/// </summary>
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class CommentPool
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{
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#region Singleton
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/// <summary>
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/// Gets the singleton instance of the CommentPool.
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/// </summary>
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public static CommentPool Default
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{
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get
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{
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return _instance;
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}
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}
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private static readonly CommentPool _instance = new CommentPool();
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#endregion
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#region Properties
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/// <summary>
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/// Gets the number of ItemComments in the pool.
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/// </summary>
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public int Count { get { return _itemComments.Count; } }
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#endregion
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#region Event
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public event EventHandler<ItemCommentEventArgs> FillInComment;
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#endregion
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#region Constructor
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/// <summary>
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/// Static constructor to support the singleton implementation.
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/// </summary>
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/// <remarks>
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/// See http://csharpindepth.com/Articles/General/Singleton.aspx#cctor
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/// </remarks>
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static CommentPool() { }
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private CommentPool()
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{
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_itemComments = new List<ItemComment>();
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}
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#endregion
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#region Methods
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/// <summary>
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/// Clear the pool of ItemComments and sets the event handler
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/// to null.
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/// </summary>
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public void Reset()
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{
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_itemComments.Clear();
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FillInComment = null;
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}
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/// <summary>
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/// Retrieves the ItemComment for a given definitionString;
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/// creates a new ItemComment object if necessary.
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/// </summary>
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/// <param name="definitionString"></param>
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/// <returns>ItemComment derived from the
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/// <paramref name="definitionString"/></returns>
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public ItemComment GetCommentFor(string definitionString)
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{
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ItemComment itemComment = _itemComments.FirstOrDefault(
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i => i.Definition == definitionString);
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if (itemComment == null)
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{
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itemComment = ItemComment.FromDefinitionString(definitionString);
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if (itemComment != null)
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{
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_itemComments.Add(itemComment);
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itemComment.FillInComment += itemComment_FillInComment;
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}
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}
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return itemComment;
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}
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#endregion
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#region Private methods
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protected virtual void itemComment_FillInComment(object sender, ItemCommentEventArgs e)
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{
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OnFillInComment(e);
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}
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#endregion
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#region Protected methods
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protected virtual void OnFillInComment(ItemCommentEventArgs args)
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{
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EventHandler<ItemCommentEventArgs> h = FillInComment;
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if (h != null)
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{
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h(this, args);
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}
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}
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#endregion
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#region Fields
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List<ItemComment> _itemComments;
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#endregion
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}
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}
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