337 lines
12 KiB
C#
337 lines
12 KiB
C#
#region Using Statements
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using System;
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using System.Runtime.Serialization;
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using System.IO;
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using System.Reflection;
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using System.Collections.Generic;
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using System.Resources;
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using System.Collections;
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using System.Linq;
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using ANX.Framework.NonXNA.InputSystem;
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#endregion
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#region License
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//
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// This file is part of the ANX.Framework created by the "ANX.Framework developer group".
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//
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// This file is released under the Ms-PL license.
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//
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//
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//
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// Microsoft Public License (Ms-PL)
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//
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// This license governs use of the accompanying software. If you use the software, you accept this license.
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// If you do not accept the license, do not use the software.
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//
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// 1.Definitions
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// The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning
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// here as under U.S. copyright law.
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// A "contribution" is the original software, or any additions or changes to the software.
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// A "contributor" is any person that distributes its contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read directly on its contribution.
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//
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// 2.Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations
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// in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to
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// reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution
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// or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in
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// section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed
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// patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution
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// in the software or derivative works of the contribution in the software.
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//
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// 3.Conditions and Limitations
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// (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends automatically.
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// (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source code form, you may do so only under this license by including
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// a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or
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// object code form, you may only do so under a license that complies with this license.
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// (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees,
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// or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the
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// extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a
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// particular purpose and non-infringement.
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#endregion // License
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namespace ANX.Framework.NonXNA
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{
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public class AddIn : IComparable<AddIn>
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{
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#region Private Members
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private string fileName;
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private List<string> platforms = new List<string>();
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private Assembly assembly;
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private Type creatorType;
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private ICreator instance;
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private AddInType addInType;
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#endregion // Private Members
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#region Constructor
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public AddIn(string fileName)
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{
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if (String.IsNullOrEmpty(fileName))
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{
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throw new ArgumentNullException("fileName");
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}
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if (File.Exists(fileName) == false)
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{
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throw new InvalidOperationException(
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String.Format("The AddIn '{0}' does not exist.", fileName));
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}
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this.fileName = fileName;
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try
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{
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this.assembly = Assembly.LoadFrom(fileName);
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}
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catch { }
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if (this.assembly != null)
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{
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Type[] allTypes;
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try
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{
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allTypes = this.assembly.GetTypes();
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}
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catch (ReflectionTypeLoadException ex)
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{
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allTypes = ex.Types;
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}
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foreach (Type t in allTypes.Where(p =>
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typeof(IInputSystemCreator).IsAssignableFrom(p) ||
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typeof(IRenderSystemCreator).IsAssignableFrom(p) ||
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typeof(ISoundSystemCreator).IsAssignableFrom(p) ||
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typeof(IMediaSystemCreator).IsAssignableFrom(p)))
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{
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this.creatorType = t;
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this.addInType = AddInSystemFactory.GetAddInType(t);
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break;
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}
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if (this.creatorType != null)
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{
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try
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{
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this.platforms.AddRange(FetchSupportedPlattforms(this.assembly));
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}
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catch { }
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}
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//
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// Scan the addin for InputDeviceCreators and register them
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//
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foreach (Type t in allTypes.Where(p =>
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typeof(IGamePadCreator).IsAssignableFrom(p)))
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{
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InputDeviceFactory.Instance.AddCreator(Activator.CreateInstance(t) as IGamePadCreator);
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}
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foreach (Type t in allTypes.Where(p =>
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typeof(IKeyboardCreator).IsAssignableFrom(p)))
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{
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InputDeviceFactory.Instance.AddCreator(Activator.CreateInstance(t) as IKeyboardCreator);
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}
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foreach (Type t in allTypes.Where(p =>
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typeof(IMouseCreator).IsAssignableFrom(p)))
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{
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InputDeviceFactory.Instance.AddCreator(Activator.CreateInstance(t) as IMouseCreator);
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}
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#if XNAEXT
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foreach (Type t in allTypes.Where(p =>
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typeof(IMotionSensingDeviceCreator).IsAssignableFrom(p)))
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{
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InputDeviceFactory.Instance.AddCreator(Activator.CreateInstance(t) as IMotionSensingDeviceCreator);
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}
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#endif
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}
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}
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#endregion // Constructor
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#region Puplic Methods
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#endregion // Public Methods
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#region Properties
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/// <summary>
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/// Returns whether this is a valid AddIn of the ANX.Framework.
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/// </summary>
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public bool IsValid
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{
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get
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{
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return this.assembly != null && this.creatorType != null;
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}
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}
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/// <summary>
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/// The filename of the current AddIn assembly
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/// </summary>
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public string FileName
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{
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get
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{
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return this.fileName;
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}
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}
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/// <summary>
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/// Returns true if this AddIn is supported by the current Platform
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/// </summary>
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public bool IsSupported
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{
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get
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{
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if (this.assembly != null && this.platforms != null && this.platforms.Count > 0)
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{
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foreach (string platform in this.platforms)
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{
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if (string.Equals(Environment.OSVersion.Platform.ToString(), platform, StringComparison.InvariantCultureIgnoreCase))
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{
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return true;
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}
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}
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}
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return false;
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}
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}
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/// <summary>
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/// Returns the version of the AddIn
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/// </summary>
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public Version Version
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{
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get
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{
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if (this.assembly != null)
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{
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return this.assembly.GetName().Version;
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}
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return null;
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}
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}
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public string Name
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{
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get
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{
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if (this.assembly != null)
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{
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return this.Instance.Name;
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}
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return String.Empty;
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}
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}
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public int Priority
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{
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get
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{
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if (this.assembly != null)
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{
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return this.Instance.Priority;
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}
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return int.MaxValue;
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}
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}
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public AddInType Type
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{
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get
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{
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return this.addInType;
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}
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}
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/// <summary>
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/// Returns the concrete instance of the creator of this AddIn. The instance is cached and
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/// only created on first access.
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/// </summary>
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/// <remarks>
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/// If this AddIn is not supported on this platform the instance will be null.
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/// </remarks>
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public ICreator Instance
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{
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get
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{
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if (instance == null && IsSupported)
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{
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this.instance = this.assembly.CreateInstance(this.creatorType.FullName) as ICreator;
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if (this.instance != null)
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{
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this.instance.RegisterCreator(AddInSystemFactory.Instance);
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}
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}
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return this.instance;
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}
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}
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#endregion // Properties
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#region Private Helpers
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#region FetchSupportedPlattforms
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private string[] FetchSupportedPlattforms(Assembly assembly)
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{
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string[] platforms = null;
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string[] res = assembly.GetManifestResourceNames();
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if (res != null)
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{
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foreach (string ressource in res)
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{
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Stream manifestResourceStream = assembly.GetManifestResourceStream(ressource);
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if (manifestResourceStream != null)
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{
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using (ResourceReader resourceReader = new ResourceReader(manifestResourceStream))
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{
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IDictionaryEnumerator dict = resourceReader.GetEnumerator();
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while (dict.MoveNext())
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{
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if (string.Equals(dict.Key.ToString(), "SupportedPlatforms", StringComparison.InvariantCultureIgnoreCase) &&
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dict.Value.GetType() == typeof(string))
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{
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platforms = dict.Value.ToString().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
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return platforms;
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}
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}
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resourceReader.Close();
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}
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}
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}
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}
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return platforms;
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}
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#endregion
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#endregion // Private Helpers
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public int CompareTo(AddIn other)
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{
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return this.Priority.CompareTo(other.Priority);
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}
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}
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}
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