108 lines
2.6 KiB
C#

//
// RIFFChunk.cs - represents a chunk in a Resource Interchange File Format file
//
// Author:
// Michael Becker <alcexhim@gmail.com>
//
// Copyright (c) 2020 Mike Becker's Software
//
// This program 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.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
using System;
namespace UniversalEditor.ObjectModels.Chunked
{
/// <summary>
/// Represents a chunk in a Resource Interchange File Format file.
/// </summary>
public abstract class RIFFChunk : ICloneable
{
public IChunkContainer Parent { get; private set; } = null;
public class RIFFChunkCollection : System.Collections.ObjectModel.Collection<RIFFChunk>
{
private IChunkContainer _parent = null;
public RIFFChunkCollection(IChunkContainer parent)
{
_parent = parent;
}
public RIFFChunk this[string Name]
{
get
{
RIFFChunk result;
foreach (RIFFChunk chunk in this)
{
if (chunk.ID == Name)
{
result = chunk;
return result;
}
}
result = null;
return result;
}
}
public RIFFChunk Add(byte[] Data)
{
return this.Add("", Data);
}
public RIFFChunk Add(string Name, byte[] Data)
{
RIFFDataChunk chunk = new RIFFDataChunk();
chunk.ID = Name;
chunk.Data = Data;
base.Add(chunk);
return chunk;
}
protected override void InsertItem(int index, RIFFChunk item)
{
base.InsertItem(index, item);
item.Parent = _parent;
}
protected override void RemoveItem(int index)
{
this[index].Parent = null;
base.RemoveItem(index);
}
protected override void SetItem(int index, RIFFChunk item)
{
this[index].Parent = null;
base.SetItem(index, item);
item.Parent = _parent;
}
protected override void ClearItems()
{
for (int i = 0; i < Count; i++)
{
this[i].Parent = null;
}
base.ClearItems();
}
}
private string mvarID = String.Empty;
public string ID { get { return mvarID; } set { mvarID = value; } }
public abstract object Clone();
public virtual long Size
{
get { return 4; }
}
}
}