source: branches/DataPreprocessing/HeuristicLab.DataPreprocessing.Views/3.3/ComparisonFilterView.cs @ 10637

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2013 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.Linq;
using HeuristicLab.Core.Views;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.DataPreprocessing.Filter;
using HeuristicLab.MainForm;
using System.Collections;
using System;

namespace HeuristicLab.DataPreprocessing.Views {
  [View("Comparison Filter View")]
  [Content(typeof(ComparisonFilter), false)]
  public partial class ComparisonFilterView : ItemView {
    public ComparisonFilterView() {
      InitializeComponent();
    }

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


    protected override void OnContentChanged()
    {
      base.OnContentChanged();
      cbAttr.Items.Clear(); //cmbConstraintColumn.Items.Clear();
      cbFilterOperation.Items.Clear(); //cmbConstraintOperation.Items.Clear();
      tbFilterData.Text = string.Empty;
      if (Content != null)
      {
        cbFilterOperation.Items.AddRange(Content.AllowedConstraintOperations.ToArray());
        if (Content.ConstraintOperation != null)
          cbFilterOperation.SelectedItem = Content.ConstraintOperation;
        else if (cbFilterOperation.Items.Count != 0)
          cbFilterOperation.SelectedIndex = 0;
        UpdateColumnComboBox();
        ReadOnly = Content.Active;
        if (Content.ConstraintData != null)
        {
          tbFilterData.Text = Content.ConstraintData.GetValue();
        }
      }
    }

    protected virtual void UpdateColumnComboBox()
    {
      this.cbAttr.Items.Clear();
      if (Content.ConstrainedValue != null)
      {
        this.cbAttr.Items.AddRange(Content.ConstrainedValue.VariableNames.ToArray<string>());
        //if (!string.IsNullOrEmpty(Content.ConstraintColumn))
        this.cbAttr.SelectedItem = Content.ConstraintColumn;
      }
    }

    protected override void RegisterContentEvents()
    {
      base.RegisterContentEvents();
      this.Content.ActiveChanged += new EventHandler(Content_ActiveChanged);
      this.Content.ConstraintOperationChanged += new EventHandler(Content_ComparisonOperationChanged);
      this.Content.ConstraintColumnChanged += new EventHandler(Content_ConstraintColumnChanged);
      this.Content.ConstrainedValueChanged += new EventHandler(Content_ConstrainedValueChanged);
    }

    protected override void DeregisterContentEvents()
    {
      base.DeregisterContentEvents();
      this.Content.ActiveChanged -= new EventHandler(Content_ActiveChanged);
      this.Content.ConstraintOperationChanged -= new EventHandler(Content_ComparisonOperationChanged);
      this.Content.ConstraintColumnChanged -= new EventHandler(Content_ConstraintColumnChanged);
      this.Content.ConstrainedValueChanged += new EventHandler(Content_ConstrainedValueChanged);
    }

    protected virtual void Content_ConstrainedValueChanged(object sender, EventArgs e)
    {
      this.UpdateColumnComboBox();
    }

    protected virtual void Content_ConstraintColumnChanged(object sender, EventArgs e)
    {
      if (Content.ConstrainedValue != null)
      {
          cbAttr.SelectedItem = Content.ConstraintColumn;
      }
    }

    protected virtual void Content_ComparisonOperationChanged(object sender, EventArgs e)
    {
      if (Content.ConstraintOperation != (ConstraintOperation)this.cbFilterOperation.SelectedItem)
        this.cbFilterOperation.SelectedItem = Content.ConstraintOperation;
    }

    protected override void SetEnabledStateOfControls()
    {
      base.SetEnabledStateOfControls();
      cbAttr.Enabled = !this.ReadOnly && Content != null;
      cbFilterOperation.Enabled = !this.ReadOnly && Content != null;
    }

    private void cbAttr_SelectedIndexChanged(object sender, EventArgs e)
    {
      if (Content.ConstrainedValue != null)
      {
        Content.ConstraintColumn = Content.ConstrainedValue.GetColumnIndex(cbAttr.SelectedItem.ToString());
      }
    }

    private void cbFilterOperation_SelectedIndexChanged(object sender, EventArgs e)
    {
      Content.ConstraintOperation = (ConstraintOperation)this.cbFilterOperation.SelectedItem;
    }

    protected virtual void Content_ActiveChanged(object sender, EventArgs e)
    {
      this.ReadOnly = Content.Active;
    }

  }
}