Mercurial > octave-nkf
view scripts/miscellaneous/rmappdata.m @ 20611:40ed9b46a800
new octave_value::string_value method with optional error message
* ov.h (octave_value::string_vector): New method.
ov-base.cc, ov-base.h (octave_base_value::string_vector):
New default method.
ov-str-mat.cc, ov-str-mat.h (octave_char_matrix_str::string_value):
New method.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 08 Oct 2015 16:43:22 -0400 |
parents | 4197fc428c7d |
children |
line wrap: on
line source
## 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} {} rmappdata (@var{h}, @var{name}) ## @deftypefnx {Function File} {} rmappdata (@var{h}, @var{name1}, @var{name2}, @dots{}) ## Delete the application data @var{name} from the graphics object with handle ## @var{h}. ## ## @var{h} may also be a vector of graphics handles. Multiple application data ## names may be supplied to delete several properties at once. ## ## @seealso{setappdata, getappdata, isappdata} ## @end deftypefn ## Author: Ben Abbott <bpabbott@mac.com> ## Created: 2010-07-15 function rmappdata (h, varargin) if (nargin < 2) print_usage (); endif h = h(:).'; if (! all (ishandle (h))) error ("rmappdata: H must be a scalar or vector of graphic handles"); elseif (! iscellstr (varargin)) error ("rmappdata: NAME must be a string"); endif for hg = h if (isprop (hg, "__appdata__")) appdata = get (hg, "__appdata__"); vld = isfield (appdata, varargin); if (! all (vld)) ## FIXME: Should we bother to error out? Or just silently continue? missing = varargin{find (! vld, 1)}; error ("rmappdata: appdata '%s' is not present", missing); endif appdata = rmfield (appdata, varargin); set (hg, "__appdata__", appdata); endif endfor endfunction %!test %! setappdata (0, "%hello%", "world"); %! rmappdata (0, "%hello%"); %! assert (isappdata (0, "%hello%"), false); %!test %! setappdata (0, "%data1%", ones (3)); %! setappdata (0, "%data2%", {"hello", "world"}); %! rmappdata (0, "%data1%", "%data2%"); %! assert (isappdata (0, "%data1%"), false); %! assert (isappdata (0, "%data2%"), false); ## Test input validation %!error rmappdata () %!error rmappdata (1) %!error <H must be a scalar .* graphic handle> rmappdata (-1, "hello") %!error <NAME must be a string> rmappdata (0, 1) %!error <appdata 'foobar' is not present> rmappdata (0, "foobar")