source: branches/ParameterConfigurationEncoding/HeuristicLab.Encodings.ParameterConfigurationEncoding.Views/3.3/OptimizableView.cs @ 15287

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2012 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 HeuristicLab.Core.Views;
using HeuristicLab.Data;
using HeuristicLab.MainForm;

namespace HeuristicLab.Encodings.ParameterConfigurationEncoding.Views {
  [View("IOptimizable View")]
  [Content(typeof(IOptimizable), IsDefaultView = false)]
  [Content(typeof(ParameterConfiguration), IsDefaultView = true)]
  [Content(typeof(ValueConfiguration), IsDefaultView = true)]
  public sealed partial class OptimizableView : ItemView {
    public new IOptimizable Content {
      get { return (IOptimizable)base.Content; }
      set { base.Content = value; }
    }

    public OptimizableView() {
      InitializeComponent();
    }

    protected override void DeregisterContentEvents() {
      Content.OptimizeChanged -= new EventHandler(Content_OptimizeChanged);
      Content.IsOptimizableChanged -= new EventHandler(Content_IsOptimizabeChanged);
      base.DeregisterContentEvents();
    }

    protected override void RegisterContentEvents() {
      base.RegisterContentEvents();
      Content.IsOptimizableChanged += new EventHandler(Content_IsOptimizabeChanged);
      Content.OptimizeChanged += new EventHandler(Content_OptimizeChanged);
    }

    #region Event Handlers (Content)
    void Content_OptimizeChanged(object sender, EventArgs e) {
      if (InvokeRequired) {
        Invoke(new EventHandler(Content_OptimizeChanged), sender, e);
      } else {
        optimizeCheckBox.Checked = Content.Optimize;
        if (Content.Optimize) {
          viewHost.ViewType = null;

          var pc = Content as IParameterConfiguration;
          var vc = Content as IValueConfiguration;

          if (pc != null) {
            if (pc is SingleValuedParameterConfiguration) {
              viewHost.Content = ((ParameterizedValueConfiguration)pc.ValueConfigurations.Single()).ParameterConfigurations;
            } else {
              viewHost.Content = pc.ValueConfigurations;
              viewHost.ViewType = typeof(ValueConfigurationCheckedItemListView);
            }
          } else if (vc != null) {
            var rvc = Content as RangeValueConfiguration;
            if (rvc != null) {
              if (Content.ActualValue.ValueDataType == typeof(IntValue) ||
                Content.ActualValue.ValueDataType == typeof(DoubleValue) ||
                Content.ActualValue.ValueDataType == typeof(PercentValue)) {
                viewHost.ViewsLabelVisible = true;
                viewHost.Content = rvc.RangeConstraint;
              } else if (Content.ActualValue.ValueDataType == typeof(BoolValue)) {
                viewHost.Content = null; // no configuration required
              }
            }

            var pvc = Content as ParameterizedValueConfiguration;
            if (pvc != null) {
              viewHost.ViewsLabelVisible = false;
              viewHost.Content = pvc.ParameterConfigurations;
            }
          } else {
            throw new NotSupportedException("Only IParameterConfiguration and IValueConfiguration types are allowed.");
          }
        } else {
          viewHost.ViewsLabelVisible = false;
          if (Content.ValuesReadOnly) {
            viewHost.Content = new MessageItem("Cannot modify value directly. Please modify the value in the list of problems.");
          } else {
            // the content's valid values get lost after optimize is set to true because the constrained value
            // does not contain the earlier valid values; therefore, the same constrained value with the correct
            // set of valid values is created before the assignment below
            var configuration = viewHost.Content as CheckedValueConfigurationList;
            if (configuration != null && configuration.ValidValues.Any(x => x.GetType() == Content.ActualValue.ValueDataType)) {
              Content.ActualValue = new ConstrainedValue(Content.ActualValue.Value,
                Content.ActualValue.ValueDataType,
                configuration.ValidValues,
                Content.ActualValue.IsNullable);
            }
            viewHost.Content = Content.ActualValue;
          }
        }
      }
      SetEnabledStateOfControls();
    }
    void Content_IsOptimizabeChanged(object sender, EventArgs e) {
      if (InvokeRequired) {
        Invoke(new EventHandler(Content_IsOptimizabeChanged), sender, e);
      } else {
        SetEnabledStateOfControls();
      }
    }
    #endregion

    protected override void OnContentChanged() {
      base.OnContentChanged();
      if (Content != null) {
        Content_OptimizeChanged(this, EventArgs.Empty);
      } else {
        viewHost.Content = null;
      }
    }

    protected override void SetEnabledStateOfControls() {
      base.SetEnabledStateOfControls();
      if (Content != null) {
        optimizeCheckBox.Enabled = !ReadOnly && Content.IsOptimizable;
      }
    }

    #region Event Handlers (child controls)
    private void optimizeCheckBox_CheckedChanged(object sender, EventArgs e) {
      Content.Optimize = optimizeCheckBox.Checked;
    }
    #endregion
  }
}