TreePath.cs :  » GUI » TreeViewAdv » Aga » Controls » Tree » C# / CSharp Open Source

using System;
using System.Text;
using System.Collections.ObjectModel;

namespace Aga.Controls.Tree{
  public class TreePath
  {
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2104:DoNotDeclareReadOnlyMutableReferenceTypes")]
    public static readonly TreePath Empty = new TreePath();

    private object[] _path;
    public object[] FullPath
    {
      get { return _path; }
    }

    public object LastNode
    {
      get
      {
        if (_path.Length > 0)
          return _path[_path.Length - 1];
        else
          return null;
      }
    }

    public object FirstNode
    {
      get
      {
        if (_path.Length > 0)
          return _path[0];
        else
          return null;
      }
    }

    public TreePath()
    {
      _path = new object[0];
    }

    public TreePath(object node)
    {
      _path = new object[] { node };
    }

    public TreePath(object[] path)
    {
      _path = path;
    }

    public TreePath(TreePath parent, object node)
    {
      _path = new object[parent.FullPath.Length + 1];
      for (int i = 0; i < _path.Length - 1; i++)
        _path[i] = parent.FullPath[i];
      _path[_path.Length - 1] = node;
    }

    public bool IsEmpty()
    {
      return (_path.Length == 0);
    }
  }
}