#region License Information /* HeuristicLab * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab 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. * * HeuristicLab 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 HeuristicLab. If not, see . */ #endregion using System; using System.Collections.Generic; using System.Text; using System.Xml; using System.Linq; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; using HeuristicLab.Common; using HeuristicLab.Collections; namespace HeuristicLab.Core { /// /// Represents a graph of operators. /// [Item("Operator Graph", "Represents a graph of operators.")] [Creatable("Algorithm Design")] [StorableClass] public class OperatorGraph : Item { [Storable] private OperatorSet operators; /// /// Gets all operators of the current instance. /// public OperatorSet Operators { get { return operators; } } [Storable] private IOperator initialOperator; /// /// Gets or sets the initial operator (the starting one). /// /// Calls in the setter. public IOperator InitialOperator { get { return initialOperator; } set { if (initialOperator != value) { if (value != null) Operators.Add(value); initialOperator = value; OnInitialOperatorChanged(); } } } [Storable] private IDeepCloneable visualizationInfo; /// /// Gets or sets the visualizationInfo. /// /// /// The VisualizationInfo can only be set once and fires afterwards and InvalidOperationException public IDeepCloneable VisualizationInfo { get { return visualizationInfo; } set { if (visualizationInfo != null) throw new InvalidOperationException("The value of the property VisualizationInfo is already set and cannot be set again."); visualizationInfo = value; } } /// /// Initializes a new instance of . /// public OperatorGraph() { operators = new OperatorSet(); initialOperator = null; visualizationInfo = null; Initialize(); } [StorableConstructor] protected OperatorGraph(bool deserializing) : base(deserializing) { } //mkommend: IMPORTANT DO NOT REMOVE THIS PRIVATE EVENT //needed to register OperatorGraph events in GraphVisualizationInfo public event EventHandler DeserializationFinished; private void OnOperatorGraphDeserializationFinished() { EventHandler handler = DeserializationFinished; if(handler != null) handler(this,EventArgs.Empty); } [StorableHook(HookType.AfterDeserialization)] private void Initialize() { RegisterOperatorsEvents(); OnOperatorGraphDeserializationFinished(); } /// /// Clones the current instance (deep clone). /// /// Deep clone through method of helper class /// . /// Dictionary of all already cloned objects. (Needed to avoid cycles.) /// The cloned object as . public override IDeepCloneable Clone(Cloner cloner) { OperatorGraph clone = (OperatorGraph)base.Clone(cloner); clone.operators = (OperatorSet)cloner.Clone(operators); clone.initialOperator = (IOperator)cloner.Clone(initialOperator); clone.visualizationInfo = cloner.Clone(visualizationInfo); clone.Initialize(); return clone; } /// public event EventHandler InitialOperatorChanged; /// /// Fires a new InitialOperatorChanged event. /// protected virtual void OnInitialOperatorChanged() { if (InitialOperatorChanged != null) InitialOperatorChanged(this, EventArgs.Empty); } #region Operators Events private void AddOperator(IOperator op) { RegisterOperatorEvents(op); foreach (IParameter param in op.Parameters) AddParameter(param); } private void RemoveOperator(IOperator op) { foreach (IParameter param in op.Parameters) RemoveParameter(param); DeregisterOperatorEvents(op); // remove edges to removed operator var opParams = from o in Operators from p in o.Parameters where p is IValueParameter where typeof(IOperator).IsAssignableFrom(((IValueParameter)p).DataType) where (((IValueParameter)p).Value != null) && (((IValueParameter)p).Value == op) select (IValueParameter)p; foreach (IValueParameter opParam in opParams) opParam.Value = null; } private void AddParameter(IParameter param) { IValueParameter valueParam = param as IValueParameter; if ((valueParam != null) && (typeof(IOperator).IsAssignableFrom(valueParam.DataType))) { RegisterOperatorParameterEvents(valueParam); if (valueParam.Value != null) Operators.Add((IOperator)valueParam.Value); } } private void RemoveParameter(IParameter param) { IValueParameter valueParam = param as IValueParameter; if ((valueParam != null) && (typeof(IOperator).IsAssignableFrom(valueParam.DataType))) { DeregisterOperatorParameterEvents(valueParam); } } private void RegisterOperatorsEvents() { if (operators != null) { operators.ItemsAdded += new CollectionItemsChangedEventHandler(Operators_ItemsAdded); operators.ItemsRemoved += new CollectionItemsChangedEventHandler(Operators_ItemsRemoved); operators.CollectionReset += new CollectionItemsChangedEventHandler(Operators_CollectionReset); foreach (IOperator op in operators) { RegisterOperatorEvents(op); var opParams = from p in op.Parameters where p is IValueParameter where typeof(IOperator).IsAssignableFrom(((IValueParameter)p).DataType) select (IValueParameter)p; foreach (IValueParameter opParam in opParams) RegisterOperatorParameterEvents(opParam); } } } private void RegisterOperatorEvents(IOperator op) { op.Parameters.ItemsAdded += new CollectionItemsChangedEventHandler(Parameters_ItemsAdded); op.Parameters.ItemsRemoved += new CollectionItemsChangedEventHandler(Parameters_ItemsRemoved); op.Parameters.ItemsReplaced += new CollectionItemsChangedEventHandler(Parameters_ItemsReplaced); op.Parameters.CollectionReset += new CollectionItemsChangedEventHandler(Parameters_CollectionReset); } private void DeregisterOperatorEvents(IOperator op) { op.Parameters.ItemsAdded -= new CollectionItemsChangedEventHandler(Parameters_ItemsAdded); op.Parameters.ItemsRemoved -= new CollectionItemsChangedEventHandler(Parameters_ItemsRemoved); op.Parameters.ItemsReplaced -= new CollectionItemsChangedEventHandler(Parameters_ItemsReplaced); op.Parameters.CollectionReset -= new CollectionItemsChangedEventHandler(Parameters_CollectionReset); } private void RegisterOperatorParameterEvents(IValueParameter opParam) { opParam.ValueChanged += new EventHandler(opParam_ValueChanged); } private void DeregisterOperatorParameterEvents(IValueParameter opParam) { opParam.ValueChanged -= new EventHandler(opParam_ValueChanged); } private void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs e) { foreach (IOperator op in e.Items) AddOperator(op); } private void Operators_ItemsRemoved(object sender, CollectionItemsChangedEventArgs e) { foreach (IOperator op in e.Items) RemoveOperator(op); if (!Operators.Contains(InitialOperator)) InitialOperator = null; } private void Operators_CollectionReset(object sender, CollectionItemsChangedEventArgs e) { foreach (IOperator op in e.OldItems) RemoveOperator(op); foreach (IOperator op in e.Items) AddOperator(op); if (!Operators.Contains(InitialOperator)) InitialOperator = null; } private void Parameters_ItemsAdded(object sender, CollectionItemsChangedEventArgs e) { foreach (IParameter param in e.Items) AddParameter(param); } private void Parameters_ItemsRemoved(object sender, CollectionItemsChangedEventArgs e) { foreach (IParameter param in e.Items) RemoveParameter(param); } private void Parameters_ItemsReplaced(object sender, CollectionItemsChangedEventArgs e) { foreach (IParameter param in e.OldItems) RemoveParameter(param); foreach (IParameter param in e.Items) AddParameter(param); } private void Parameters_CollectionReset(object sender, CollectionItemsChangedEventArgs e) { foreach (IParameter param in e.OldItems) RemoveParameter(param); foreach (IParameter param in e.Items) AddParameter(param); } private void opParam_ValueChanged(object sender, EventArgs e) { IValueParameter opParam = (IValueParameter)sender; if (opParam.Value != null) Operators.Add((IOperator)opParam.Value); } #endregion } }