Beyhan Oğur
103 lines
2.6 KiB
C#
103 lines
2.6 KiB
C#
#region License
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// Copyright (C) 2020 Reetus
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#endregion
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using System.Collections.Concurrent;
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using System.Linq;
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namespace ClassicAssist.UO.Objects
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{
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public class MenuCollection
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{
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public delegate void dCollectionChanged( Menu[] menus );
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private readonly ConcurrentDictionary<int, Menu> _dictionary;
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public MenuCollection()
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{
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_dictionary = new ConcurrentDictionary<int, Menu>();
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}
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public event dCollectionChanged CollectionChangedEvent;
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public void Add( Menu menu )
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{
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bool result = _dictionary.AddOrUpdate( menu.ID, menu, ( k, v ) => menu ) != null;
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if ( result )
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{
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OnCollectionChanged();
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}
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}
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public bool Remove( int id )
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{
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bool result = _dictionary.TryRemove( id, out Menu m );
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if ( result )
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{
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OnCollectionChanged();
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}
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return result;
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}
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public bool GetMenu( int id, out Menu menu )
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{
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return _dictionary.TryGetValue( id, out menu );
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}
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public bool FindMenu( int serial, out Menu menu )
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{
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menu = _dictionary.Values.FirstOrDefault( g => g.Serial == serial );
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return menu != null;
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}
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public bool GetMenus( out Menu[] menus )
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{
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menus = null;
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if ( _dictionary.Values.Count == 0 )
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{
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return false;
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}
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menus = _dictionary.Values.ToArray();
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return menus.Length > 0;
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}
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public void Clear()
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{
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int previousCount = _dictionary.Count;
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_dictionary.Clear();
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if ( previousCount > 0 )
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{
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OnCollectionChanged();
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}
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}
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private void OnCollectionChanged()
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{
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CollectionChangedEvent?.Invoke( _dictionary.Values.ToArray() );
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}
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}
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} |