private void OnDrop_MoveNode(TreeTreeNode <T> _dst, TreeNode src, TreeNodeDDTarget target)
{
TreeTreeNode <T> _src = src as TreeTreeNode <T>;
if (_src == null)
{
return;
}
T dval = _dst.Value;
switch (target)
{
case TreeNodeDDTarget.Self:
dval.Nodes.Add(_src.Value);
_dst.Nodes.Add(_src);
break;
case TreeNodeDDTarget.Child:
dval.Nodes.Insert(0, _src.Value);
_dst.Nodes.Insert(0, _src);
break;
case TreeNodeDDTarget.Prev:
dval.Parent.Nodes.Insert(dval.Parent.Nodes.IndexOf(dval), _src.Value);
_dst.ParentNode.Nodes.InsertBefore(_dst, _src);
break;
case TreeNodeDDTarget.Next:
dval.Parent.Nodes.Insert(dval.Parent.Nodes.IndexOf(dval) + 1, _src.Value);
_dst.ParentNode.Nodes.InsertAfter(_dst, _src);
break;
}
}
//-----------------------------------------------------------------------
// OnDrop
//-----------------------------------------------------------------------
/// <summary>
/// ドロップ処理を実行します。
/// </summary>
/// <param name="node">処理対象のノードを指定します。</param>
/// <param name="e">ドラッグの情報を指定します。</param>
public override void OnDrop(TreeNode node, TreeNodeDragEventArgs e)
{
TreeTreeNode <T> _dst = node as TreeTreeNode <T>;
TreeNodeDDTarget target = this.GetTarget(node, e);
switch (e.Effect & this.GetEffect(node, e))
{
case Forms::DragDropEffects.Move: {
TreeNode node2 = e.Data.GetData("afh.Forms.TreeNode") as TreeNode;
if (node2 != null)
{
this.OnDrop_MoveNode(_dst, node2, target);
break;
}
Gen::List <TreeNode> list = e.Data.GetData("afh.Forms.TreeNode:List") as Gen::List <TreeNode>;
if (list != null)
{
this.OnDrop_MoveList(_dst, list, target);
break;
}
break;
}
case Forms::DragDropEffects.Link:
case Forms::DragDropEffects.Copy:
throw new System.NotImplementedException();
default:
break;
}
}
private void OnDrop_MoveList(TreeTreeNode <T> _dst, Gen::List <TreeNode> list, TreeNodeDDTarget target)
{
_todo.TreeNodeDisplayHeight("TreeNodeCollection.Suppress: ノードリストの幾何再計算・再描画を抑止");
_todo.TreeNodeDisplayHeight("target==Child の時は AddRange を利用する様にする?");
using (_dst.Nodes.SuppressLayout())
foreach (TreeNode node3 in list)
{
this.OnDrop_MoveNode(_dst, node3, target);
}
}
