public void CreateBefore(string name)
{
//--create
System.Xml.XmlElement elem = this.OwnerDocument.CreateElement("F");
elem.SetAttribute("name", name);
File newfile = new File(elem);
//--search target
File tgfile = this.Parent;
System.Xml.XmlElement tgelem = tgfile != null?tgfile.Element:OwnerDocument.DocumentElement;
//--insert
tgelem.InsertBefore(newfile.Element, this.Element);
if (tgfile == null)
{
OwnerDocument.RefreshFiles();
if (this.TreeView != null)
{
this.TreeView.Nodes.Insert(this.Index, newfile);
MemoTreeView tv = this.TreeView as MemoTreeView;
if (tv != null)
{
tv.RefreshFiles();
}
}
}
else
{
tgfile.Nodes.Insert(this.Index, newfile);
}
}
//===========================================================
// IOnInsert
//===========================================================
/// <summary>
/// DragDrop によって挿入される時の処理です。
/// </summary>
void NodeDragDrop.IOnInsert.BeforeInsert(System.Windows.Forms.TreeNode target, int index)
{
File tgfile = (File)target;
System.Xml.XmlElement scelem = this.ParentElement;
System.Xml.XmlElement tgelem = tgfile != null?tgfile.Element:OwnerDocument.DocumentElement;
if (index >= 0)
{
goto insert;
}
add:
scelem.RemoveChild(this.Element);
tgelem.AppendChild(this.Element);
return;
insert:
if (scelem == tgelem && this.ElementIndex == index)
{
return;
}
//--挿入位置参照用 File (兄弟 File)
File sibling;
if (tgfile != null)
{
if (index >= tgfile.Nodes.Count)
{
goto add;
}
sibling = (File)tgfile.Nodes[index];
}
else
{
if (index >= OwnerDocument.files.Count)
{
goto add;
}
sibling = (File)OwnerDocument.files[index];
}
//--移動元から削除
scelem.RemoveChild(this.Element);
//--移動先に挿入
tgelem.InsertBefore(this.Element, sibling.Element);
if (tgfile == null)
{
OwnerDocument.RefreshFiles();
}
return;
}
