source: branches/OptimizationNetworks/HeuristicLab.Optimization.Networks.Views/3.3/InputPortView.cs @ 11431

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2014 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 HeuristicLab.MainForm;
using System;
using System.Windows.Forms;

namespace HeuristicLab.Optimization.Networks.Views {
  [View("InputPort View")]
  [Content(typeof(InputPort<>), true)]
  [Content(typeof(IInputPort<>), false)]
  [Content(typeof(IInputPort), false)]
  public partial class InputPortView : ValuePortView {
    public new IInputPort Content {
      get { return (IInputPort)base.Content; }
      set { base.Content = value; }
    }

    public InputPortView() {
      InitializeComponent();
    }

    private void UpdateOutputPortTextBoxText() {
      if ((Content == null) || (Content.OutputPort == null)) {
        outputPortTextBox.Text = string.Empty;
      } else {
        outputPortTextBox.Text = Content.OutputPort.Path + "." + Content.OutputPort.ToString();
      }
    }

    protected override void DeregisterContentEvents() {
      Content.OutputPortChanged -= Content_OutputPortChanged;
      base.DeregisterContentEvents();
    }
    protected override void RegisterContentEvents() {
      base.RegisterContentEvents();
      Content.OutputPortChanged += Content_OutputPortChanged;
    }

    protected override void OnContentChanged() {
      base.OnContentChanged();
      UpdateOutputPortTextBoxText();
    }

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

    protected virtual void Content_OutputPortChanged(object sender, EventArgs e) {
      if (InvokeRequired)
        Invoke(new EventHandler(Content_OutputPortChanged), sender, e);
      else {
        UpdateOutputPortTextBoxText();
      }
    }

    protected virtual void outputPortTextBox_DragEnterOver(object sender, DragEventArgs e) {
      e.Effect = DragDropEffects.None;
      if (!ReadOnly && (e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) is IOutputPort)) {
        e.Effect = DragDropEffects.Link;
      }
    }
    protected virtual void outputPortTextBox_DragDrop(object sender, DragEventArgs e) {
      if (e.Effect != DragDropEffects.None) {
        IOutputPort port = e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat) as IOutputPort;
        Content.OutputPort = port;
      }
    }
  }
}