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// #region License
// /*
// Microsoft Public License (Ms-PL)
// MonoGame - Copyright © 2009 The MonoGame Team
//
// All rights reserved.
//
// This license governs use of the accompanying software. If you use the software, you accept this license. If you do not
// accept the license, do not use the software.
//
// 1. Definitions
// The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning here as under
// U.S. copyright law.
//
// A "contribution" is the original software, or any additions or changes to the software.
// A "contributor" is any person that distributes its contribution under this license.
// "Licensed patents" are a contributor's patent claims that read directly on its contribution.
//
// 2. Grant of Rights
// (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations in section 3,
// each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution or any derivative works that you create.
// (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in section 3,
// each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution in the software or derivative works of the contribution in the software.
//
// 3. Conditions and Limitations
// (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
// (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software,
// your patent license from such contributor to the software ends automatically.
// (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution
// notices that are present in the software.
// (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
// a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or object
// code form, you may only do so under a license that complies with this license.
// (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees
// or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the extent
// permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a particular
// purpose and non-infringement.
// */
// #endregion License
//
using System;
using System.Collections.Generic;
namespace Microsoft.Xna.Framework.Content
{
internal class DictionaryReader<TKey, TValue> : ContentTypeReader<Dictionary<TKey, TValue>>
{
ContentTypeReader keyReader;
ContentTypeReader valueReader;
Type keyType;
Type valueType;
internal DictionaryReader()
{
}
protected internal override void Initialize(ContentTypeReaderManager manager)
{
keyType = typeof(TKey);
valueType = typeof(TValue);
keyReader = manager.GetTypeReader(keyType);
valueReader = manager.GetTypeReader(valueType);
}
protected internal override Dictionary<TKey, TValue> Read(ContentReader input, Dictionary<TKey, TValue> existingInstance)
{
int count = input.ReadInt32();
Dictionary<TKey, TValue> dictionary = existingInstance;
if (dictionary == null) dictionary = new Dictionary<TKey, TValue>();
for (int i = 0; i < count; i++)
{
TKey key;
TValue value;
if(keyType.IsValueType)
{
key = input.ReadObject<TKey>(keyReader);
}
else
{
int readerType = input.ReadByte();
key = input.ReadObject<TKey>(input.TypeReaders[readerType - 1]);
}
if(valueType.IsValueType)
{
value = input.ReadObject<TValue>(valueReader);
}
else
{
int readerType = input.ReadByte();
value = input.ReadObject<TValue>(input.TypeReaders[readerType - 1]);
}
dictionary.Add(key, value);
}
return dictionary;
}
}
}
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