Mercurial > octave
view scripts/gui/setappdata.m @ 31221:f5755dbacd8d
maint: merge stable to default
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Wed, 31 Aug 2022 22:04:02 +0200 |
parents | 796f54d4ddbf |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 2010-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} setappdata (@var{h}, @var{name}, @var{value}) ## @deftypefnx {} {} setappdata (@var{h}, @var{name1}, @var{value1}, @var{name2}, @var{value3}, @dots{}) ## @deftypefnx {} {} setappdata (@var{h}, @{@var{name1}, @var{name2}, @dots{}@}, @{@var{value1}, @var{value2}, @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. Alternatively, a ## cell array of @var{names} and a corresponding cell array of @var{values} can ## be specified. For details on obtaining a list of valid application data ## properties, @pxref{XREFgetappdata,,@code{getappdata}}. ## ## @seealso{getappdata, isappdata, rmappdata, guidata, get, set, getpref, ## setpref} ## @end deftypefn function setappdata (h, varargin) if (nargin < 3) print_usage (); endif h = h(:).'; if (! all (ishghandle (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 if (iscellstr (varargin{1})) if (nargin != 3) error ("setappdata: only 3 arguments possible when NAME is a cellstr"); elseif (! iscell (varargin{2})) varargin{2} = varargin(2); # convert to cell endif names = varargin{1}; values = varargin{2}; n_names = numel (names); n_value = numel (values); if (n_value == 1 && n_names > 1) values = repmat (values, [1, n_names]); elseif (n_names != n_value) error ("setappdata: number of NAME and VALUE arguments must match"); endif varargin = cell (1, 2*numel (names)); varargin(1:2:end) = names; varargin(2:2:end) = values; elseif (! all (cellfun ("isclass", varargin(1:2:end), "char"))) error ("setappdata: NAME must be a string or cellstr"); endif for hg = h appdata = get (hg, "__appdata__"); ## Slow, but not likely to be that many elements in loop for narg = 1:2:numel (varargin) appdata.(varargin{narg}) = varargin{narg+1}; 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 %! unwind_protect %! setappdata (0, {"%data1%", "%data2%"}, {ones(3), "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)); %! rmappdata (0, "%data1%", "%data2%"); %! setappdata (0, {"%data1%", "%data2%"}, pi); %! assert (getappdata (0, "%data1%"), pi); %! assert (getappdata (0, "%data2%"), pi); %! unwind_protect_cleanup %! rmappdata (0, "%data1%", "%data2%"); %! end_unwind_protect ## Test input validation %!error <Invalid call> setappdata () %!error <Invalid call> setappdata (0) %!error <Invalid call> setappdata (0, "name") %!error <H must be a scalar .* graphic handle> setappdata (-1, "foo", "bar") %!error <NAME/VALUE arguments must occur in pairs> setappdata (0, "1", 2, "3") %!error <only 3 arguments possible> setappdata (0, {"1"}, 2, "3", 4) %!error <number of NAME and VALUE arguments must match> %! setappdata (0, {"1", "2"}, {2, 3, 4}) %!error <NAME must be a string> setappdata (0, 1, 2)