#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2016 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 <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.Linq;
using System.Windows.Forms;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Core.Views;
using HeuristicLab.MainForm;
using HeuristicLab.MainForm.WindowsForms;
using HeuristicLab.Problems.DataAnalysis;

namespace HeuristicLab.DatastreamAnalysis.Views {
  [View("Ensemble Models")]
  [Content(typeof(RegressionEnsembleModel), true)]
  internal sealed partial class RegressionEnsembleModelView : NamedItemView {
    //private ItemCollectionView<IRegressionModel> view;
    private ItemCollection<IRegressionModel> models = new ItemCollection<IRegressionModel>();

    public RegressionEnsembleModelView() {
      InitializeComponent();
      models = new ItemCollection<IRegressionModel>();

      models.ItemsAdded += Models_ItemsAdded;
      models.ItemsRemoved += Models_ItemsRemoved;
      models.CollectionReset += Models_CollectionReset;

    }

    public new RegressionEnsembleModel Content {
      get { return (RegressionEnsembleModel)base.Content; }
      set { base.Content = value; }
    }

 
    protected override void OnContentChanged() {
      base.OnContentChanged();
      if (Content != null) {
        models.ItemsAdded -= Models_ItemsAdded;
        models.ItemsRemoved -= Models_ItemsRemoved;
        models.CollectionReset -= Models_CollectionReset;

        models.Clear();
        models.AddRange(Content.Models);
        modelsView.Content = models;

        models.ItemsAdded += Models_ItemsAdded;
        models.ItemsRemoved += Models_ItemsRemoved;
        models.CollectionReset += Models_CollectionReset;
      } else {
        modelsView.Content = null;
      }
    }

    private void Models_CollectionReset(object sender, Collections.CollectionItemsChangedEventArgs<IRegressionModel> e) {
      Content = null;
    }

    private void Models_ItemsAdded(object sender, Collections.CollectionItemsChangedEventArgs<IRegressionModel> e) {
      Content.AddRange(e.Items);
    }

    private void Models_ItemsRemoved(object sender, Collections.CollectionItemsChangedEventArgs<IRegressionModel> e) {
      Content.RemoveRange(e.Items);
    }

    private class ModelsView : ItemCollectionView<IRegressionModel> {
      public ModelsView() : base() {
      }
    }

    //private class ModelsView : ItemCollectionView<IRegressionModel> {
    //  protected override void SetEnabledStateOfControls() {
    //    base.SetEnabledStateOfControls();
    //    addButton.Enabled = false;
    //    removeButton.Enabled = Content != null && !Content.IsReadOnly && !Locked && !ReadOnly && itemsListView.SelectedItems.Count > 0;
    //    itemsListView.Enabled = Content != null && !Locked;
    //    detailsGroupBox.Enabled = Content != null && itemsListView.SelectedItems.Count == 1;
    //    sortAscendingButton.Enabled = false;
    //    sortDescendingButton.Enabled = false;
    //  }

    //  protected override void SortItemsListView(SortOrder sortOrder) { }


    //  protected override void itemsListView_DragEnter(object sender, DragEventArgs e) {
    //    validDragOperation = false;
    //    if (ReadOnly || Locked) return;
    //    if (Content.IsReadOnly) return;

    //    var dropData = e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat);
    //    validDragOperation = dropData.GetObjectGraphObjects().OfType<IRegressionModel>().Any();
    //  }
    //  protected override void itemsListView_DragDrop(object sender, DragEventArgs e) {
    //    if (e.Effect != DragDropEffects.None) {
    //      var dropData = e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat);
    //      var solutions = dropData.GetObjectGraphObjects().OfType<IRegressionModel>();
    //      if (e.Effect.HasFlag(DragDropEffects.Copy)) {
    //        Cloner cloner = new Cloner();
    //        solutions = solutions.Select(s => cloner.Clone(s));
    //      }
    //      var solutionCollection = Content as ItemCollection<IRegressionModel>;
    //      if (solutionCollection != null) {
    //        solutionCollection.AddRange(solutions);
    //      } else {
    //        foreach (var solution in solutions)
    //          Content.Add(solution);
    //      }
    //    }
    //  }
    //  protected override void itemsListView_KeyDown(object sender, KeyEventArgs e) {
    //    var solutionCollection = Content as ItemCollection<IRegressionModel>;
    //    if (e.KeyCode == Keys.Delete && solutionCollection != null) {
    //      if ((itemsListView.SelectedItems.Count > 0) && !Content.IsReadOnly && !ReadOnly) {
    //        solutionCollection.RemoveRange(itemsListView.SelectedItems.Cast<ListViewItem>().Select(x => (IRegressionModel)x.Tag));
    //      }
    //    } else {
    //      base.itemsListView_KeyDown(sender, e);
    //    }
    //  }
    //  protected override void removeButton_Click(object sender, EventArgs e) {
    //    var solutionCollection = Content as ItemCollection<IRegressionModel>;
    //    if (itemsListView.SelectedItems.Count > 0 && solutionCollection != null) {
    //      solutionCollection.RemoveRange(itemsListView.SelectedItems.Cast<ListViewItem>().Select(x => (IRegressionModel)x.Tag));
    //      itemsListView.SelectedItems.Clear();
    //    } else {
    //      base.removeButton_Click(sender, e);
    //    }
    //  }
    //}

  }
}