## Copyright (C) 2005 John W. Eaton
##
## 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 2, 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, write to the Free
## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
## 02110-1301, USA.

## -*- texinfo -*-
## @deftypefn {Function File} {} set (@var{h}, @var{p}, @var{v}, @dots{})
## Set the named property @var{p} to the value @var{v} in the graphics
## handle @var{h}.
## @end deftypefn

## Author: jwe

function retval = set (h, varargin)

  __uiobject_globals__;
  
  if (rem (nargin-1, 2) == 0)
    if (ishandle (h))
      idx = __uiobject_handle2idx__ (h);
      obj = __uiobject_list__(idx).object;

      if (isfield (obj, "__setter__"))
        obj = feval (obj.__setter__, h, varargin{:});
      else
	for i = 1:2:nargin-1
	  property = varargin{i};
	  if (ischar (property))
	    key = tolower (property);
	    if (isfield (obj, key))
	      val = varargin{i+1};
	      if (isfield (obj, "__validators__"))
		validators = obj.__validators__;
		if (isfield (validators, key))
		  feval (validators.(key), val);
		endif
	      endif
	      obj.(key) = val; 
	    else
	      warning ("set: unrecognized property `%s' for uiobject `%s'",
		       property, obj.type);
	    endif
	  else
	    error ("set: expecting property name to be a character string");
	  endif
	endfor
      endif
      __uiobject_list__(idx).object = obj;
      __request_drawnow__ ();
      if (nargout > 0)
	retval = h;
      endif
    else
      error ("set: invalid handle");
    endif
  else
    print_usage ();
  endif

endfunction
