private void OnItemBeginDrop(object sender, ItemDropCancelArgs e)
{
if (e.IsExternal)
{
}
else
{
RuntimeUndo.BeginRecord();
for (int i = 0; i < e.DragItems.Length; ++i)
{
Transform dragT = ((GameObject)e.DragItems[i]).transform;
RuntimeUndo.RecordTransform(dragT, dragT.parent, dragT.GetSiblingIndex());
RuntimeUndo.RecordObject(dragT.gameObject, m_treeView.IndexOf(dragT.gameObject), RestoreIndexFromUndoRecord);
}
RuntimeUndo.EndRecord();
}
}
private void OnItemDrop(object sender, ItemDropArgs e)
{
if (e.IsExternal)
{
}
else
{
Transform dropT = ((GameObject)e.DropTarget).transform;
if (e.Action == ItemDropAction.SetLastChild)
{
RuntimeUndo.BeginRecord();
for (int i = 0; i < e.DragItems.Length; ++i)
{
Transform dragT = ((GameObject)e.DragItems[i]).transform;
dragT.SetParent(dropT, true);
dragT.SetAsLastSibling();
RuntimeUndo.RecordTransform(dragT, dropT, dragT.GetSiblingIndex());
RuntimeUndo.RecordObject(dragT.gameObject, m_treeView.IndexOf(dragT.gameObject), RestoreIndexFromUndoRecord);
}
RuntimeUndo.EndRecord();
}
else if (e.Action == ItemDropAction.SetNextSibling)
{
RuntimeUndo.BeginRecord();
for (int i = e.DragItems.Length - 1; i >= 0; --i)
{
Transform dragT = ((GameObject)e.DragItems[i]).transform;
int dropTIndex = dropT.GetSiblingIndex();
if (dragT.parent != dropT.parent)
{
dragT.SetParent(dropT.parent, true);
dragT.SetSiblingIndex(dropTIndex + 1);
}
else
{
int dragTIndex = dragT.GetSiblingIndex();
if (dropTIndex < dragTIndex)
{
dragT.SetSiblingIndex(dropTIndex + 1);
}
else
{
dragT.SetSiblingIndex(dropTIndex);
}
}
RuntimeUndo.RecordTransform(dragT, dropT.parent, dragT.GetSiblingIndex());
RuntimeUndo.RecordObject(dragT.gameObject, m_treeView.IndexOf(dragT.gameObject), RestoreIndexFromUndoRecord);
}
RuntimeUndo.EndRecord();
}
else if (e.Action == ItemDropAction.SetPrevSibling)
{
RuntimeUndo.BeginRecord();
for (int i = 0; i < e.DragItems.Length; ++i)
{
Transform dragT = ((GameObject)e.DragItems[i]).transform;
if (dragT.parent != dropT.parent)
{
dragT.SetParent(dropT.parent, true);
}
int dropTIndex = dropT.GetSiblingIndex();
int dragTIndex = dragT.GetSiblingIndex();
if (dropTIndex > dragTIndex)
{
dragT.SetSiblingIndex(dropTIndex - 1);
}
else
{
dragT.SetSiblingIndex(dropTIndex);
}
RuntimeUndo.RecordTransform(dragT, dropT.parent, dragT.GetSiblingIndex());
RuntimeUndo.RecordObject(dragT.gameObject, m_treeView.IndexOf(dragT.gameObject), RestoreIndexFromUndoRecord);
}
RuntimeUndo.EndRecord();
}
}
}