public void Remove(DrawObject obj)
{
if (ehObjectChanged != null)
{
ehObjectChanged(obj, OBJ_OPERATE.remove);
}
obj.Clear();
graphicsList.Remove(obj);
}
/// <summary>
/// Remove object by index.
/// Used for Undo.
/// </summary>
public void RemoveAt(int index)
{
DrawObject o = graphicsList[index];
o.Clear();
if (ehObjectChanged != null)
{
ehObjectChanged(o, OBJ_OPERATE.remove);
}
graphicsList.RemoveAt(index);
}