118 lines
3.2 KiB
C#
118 lines
3.2 KiB
C#
//
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// Converter.cs - provides a structured mechanism for converting from one ObjectModel to another
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//
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// Author:
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// Michael Becker <alcexhim@gmail.com>
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//
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// Copyright (c) 2011-2020 Mike Becker's Software
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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 <http://www.gnu.org/licenses/>.
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using System;
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using System.Collections.Generic;
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namespace UniversalEditor
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{
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public struct ConverterCapability
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{
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public Type from;
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public Type to;
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public ConverterCapability(Type from, Type to)
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{
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this.from = from;
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this.to = to;
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}
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}
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public class ConverterCapabilityCollection
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{
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private List<ConverterCapability> caps = new List<ConverterCapability>();
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public void Add(Type from, Type to)
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{
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ConverterCapability cap = new ConverterCapability(from, to);
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caps.Add(cap);
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}
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public bool Contains(Type from, Type to)
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{
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ConverterCapability cap = new ConverterCapability(from, to);
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return caps.Contains(cap);
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}
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public bool Remove(Type from, Type to)
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{
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ConverterCapability cap = new ConverterCapability(from, to);
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if (caps.Contains(cap))
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{
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caps.Remove(cap);
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return true;
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}
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return false;
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}
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}
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public class ConverterReference : ReferencedBy<Converter>
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{
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private Type mvarType = null;
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public Type Type { get { return mvarType; } set { mvarType = value; } }
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private ConverterCapabilityCollection mvarCapabilities = new ConverterCapabilityCollection();
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public ConverterCapabilityCollection Capabilities { get { return mvarCapabilities; } }
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public ConverterReference(Type type)
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{
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if (!type.IsSubclassOf(typeof(Converter)))
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{
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throw new InvalidCastException("Cannot create a converter reference to a non-Converter type");
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}
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else if (type.IsAbstract)
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{
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throw new InvalidOperationException("Cannot create a converter reference to an abstract type");
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}
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mvarType = type;
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}
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public Converter Create()
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{
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if (mvarType != null) return (Converter)mvarType.Assembly.CreateInstance(mvarType.FullName);
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return null;
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}
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public string[] GetDetails()
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{
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throw new NotImplementedException();
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}
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public bool ShouldFilterObject(string filter)
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{
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throw new NotImplementedException();
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}
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}
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/// <summary>
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/// Provides a structured mechanism for converting from one <see cref="ObjectModel" /> to another.
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/// </summary>
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public abstract class Converter : References<ConverterReference>
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{
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public abstract void Convert(ObjectModel from, ObjectModel to);
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public ConverterReference MakeReference()
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{
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return MakeReferenceInternal();
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}
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protected virtual ConverterReference MakeReferenceInternal()
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{
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ConverterReference _cr = new ConverterReference(this.GetType());
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return _cr;
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}
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}
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}
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