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## Copyright (C) 2010-2015 Ben Abbott
##
## 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} {} setappdata (@var{h}, @var{name}, @var{value})
## @deftypefnx {Function File} {} setappdata (@var{h}, @var{name1}, @var{value1}, @var{name2}, @var{value3}, @dots{})
## Set the application data @var{name} to @var{value} for the graphics object
## with handle @var{h}.
##
## @var{h} may also be a vector of graphics handles. If the application data
## with the specified @var{name} does not exist, it is created. Multiple
## @var{name}/@var{value} pairs can be specified at a time.
##
## @seealso{getappdata, isappdata, rmappdata, guidata, get, set, getpref, setpref}
## @end deftypefn
## Author: Ben Abbott <bpabbott@mac.com>
## Created: 2010-07-15
function setappdata (h, varargin)
h = h(:).';
if (! all (ishandle (h)))
error ("setappdata: H must be a scalar or vector of graphic handles");
elseif (mod (numel (varargin), 2) != 0)
error ("setappdata: NAME/VALUE arguments must occur in pairs");
endif
for hg = h
try
appdata = get (hg, "__appdata__");
catch
appdata = struct ();
addproperty ("__appdata__", hg, "any", appdata);
end_try_catch
for narg = 1:2:numel (varargin)
if (ischar (varargin{narg}))
appdata.(varargin{narg}) = varargin{narg+1};
elseif (iscellstr (varargin{narg}))
## Handle cell arrays like set() does.
set (hg, "__appdata__", appdata);
setappdata (hg, vertcat (varargin{narg}', varargin{narg+1}'){:});
appdata = get (hg, "__appdata__");
else
error ("setappdata: NAME must be a string or cellstr");
endif
endfor
set (hg, "__appdata__", appdata);
endfor
endfunction
%!test
%! unwind_protect
%! setappdata (0, "%hello%", "world");
%! assert (isappdata (0, "%hello%"), true);
%! assert (getappdata (0, "%hello%"), "world");
%! unwind_protect_cleanup
%! rmappdata (0, "%hello%");
%! end_unwind_protect
%!test
%! unwind_protect
%! setappdata (0, "%data1%", ones (3), "%data2%", "hello world");
%! assert (getappdata (0, "%data1%"), ones (3));
%! assert (getappdata (0, "%data2%"), "hello world");
%! setappdata (0, "%data1%", zeros (3));
%! assert (getappdata (0, "%data1%"), zeros (3));
%! unwind_protect_cleanup
%! rmappdata (0, "%data1%", "%data2%");
%! end_unwind_protect
## Test input validation
%!error <H must be a scalar .* graphic handle> rmappdata (-1, "hello")
%!error <NAME must be a string> setappdata (0, 1, 2)
%!error <NAME/VALUE arguments must occur in pairs> setappdata (0, "1")
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