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

using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel.Design;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Drawing.Design;

namespace Aga.Controls.Tree.NodeControls{
  internal class NodeControlsCollection : Collection<NodeControl>
  {
    private TreeViewAdv _tree;

    public NodeControlsCollection(TreeViewAdv tree)
    {
      _tree = tree;
    }

    protected override void ClearItems()
    {
      _tree.BeginUpdate();
      try
      {
        while (this.Count != 0)
          this.RemoveAt(this.Count - 1);
      }
      finally
      {
        _tree.EndUpdate();
      }
    }

    protected override void InsertItem(int index, NodeControl item)
    {
      if (item == null)
        throw new ArgumentNullException("item");

      if (item.Parent != _tree)
      {
        if (item.Parent != null)
        {
          item.Parent.NodeControls.Remove(item);
        }
        base.InsertItem(index, item);
        item.AssignParent(_tree);
        _tree.FullUpdate();
      }
    }

    protected override void RemoveItem(int index)
    {
      NodeControl value = this[index];
      value.AssignParent(null);
      base.RemoveItem(index);
      _tree.FullUpdate();
    }

    protected override void SetItem(int index, NodeControl item)
    {
      if (item == null)
        throw new ArgumentNullException("item");

      _tree.BeginUpdate();
      try
      {
        RemoveAt(index);
        InsertItem(index, item);
      }
      finally
      {
        _tree.EndUpdate();
      }
    }
  }

  internal class NodeControlCollectionEditor : CollectionEditor
  {
    private Type[] _types;

    public NodeControlCollectionEditor(Type type)
      : base(type)
    {
      _types = new Type[] { typeof(NodeTextBox), typeof(NodeIntegerTextBox), typeof(NodeDecimalTextBox), 
        typeof(NodeComboBox), typeof(NodeCheckBox),
        typeof(NodeStateIcon), typeof(NodeIcon), typeof(NodeNumericUpDown), typeof(ExpandingIcon)  };
    }

    protected override System.Type[] CreateNewItemTypes()
    {
      return _types;
    }
  }
}