## Copyright (C) 2007-2012 David Bateman
##
## 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} {} __axes_limits__ (@var{fcn}, @dots{})
## Undocumented internal function.
## @end deftypefn

function retval = __axes_limits__ (fcn, varargin)

  retval = [];

  fcnmode = sprintf ("%smode", fcn);

  [h, varargin, nargin] = __plt_get_axis_arg__ (fcn, varargin{:});

  if (nargin == 0)
    retval = get (h, fcn);
  else
    arg = varargin{1};

    if (ischar (arg))
      if (strcmpi (arg, "mode"))
        retval = get (h, fcnmode);
      elseif (strcmpi (arg, "auto") ||  strcmpi (arg, "manual"))
        set (h, fcnmode, arg);
      endif
    else
      if (!isnumeric (arg) && any (size (arg(:)) != [2, 1]))
        error ("%s: argument must be a 2 element vector", fcn);
      else
        if (arg(1) >= arg(2))
          error ("%s: axis limits must be increasing", fcn);
        else
          set (h, fcn, arg(:));
        endif
      endif
    endif
  endif

endfunction