--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/plot/private/__uiobject_split_args__.m	Thu Oct 06 23:39:05 2011 +0100
@@ -0,0 +1,63 @@
+## Copyright (C) 2011 Michael Goffioul
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn  {Function File} {[@var{p}, @var{args}] =} __uiobject_split_args__ (@var{who}, @dots{})
+## @end deftypefn
+
+## Author: goffioul
+
+function [parent, args] = __uiobject_split_args__ (who, varargin)
+
+  parent = [];
+  args = {};
+  offset = 1;
+
+  if (nargin > 1)
+    if (ishandle (varargin{1}))
+      parent = varargin{1};
+      offset = 2;
+    elseif (! ischar (varargin{1}))
+      error ("%s: invalid parent handle.", who);
+    endif
+
+    if (nargin > offset)
+      args = varargin(offset:end);
+    endif
+  endif
+
+  if (! isempty (args))
+    i = find (strcmpi (args(1:2:end), "parent"), 1, "first");
+    if (! isempty (i) && length (args) >= 2*i)
+      parent = args{2*i};
+      if (! ishandle (parent))
+        error ("%s: invalid parent handle.", who);
+      endif
+      args([2*i-1, 2*i]) = [];
+    endif
+  endif
+
+  if (! isempty (parent))
+    if (isempty (find (strcmpi (get (parent, "type"), {"figure", "uipanel", "uibuttongroup"}))))
+      error ("%s: invalid parent, the parent must be a figure, uipanel or uibuttongroup handle", who);
+    endif
+  else
+    parent = gcf ();
+  endif
+
+endfunction