Mercurial > hg > octave-nkf
annotate scripts/plot/isprop.m @ 15536:2e8eb9ac43a5 stable rc-3-6-4-0
3.6.4-rc0 release candidate
* configure.ac (AC_INIT): Version is now 3.6.2-rc0.
(OCTAVE_RELEASE_DATE): Now 2012-05-11.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 17 Oct 2012 10:05:44 -0400 |
| parents | 72c96de7a403 |
| children | f3d52523cde1 |
| rev | line source |
|---|---|
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maint: update copyright notices for 2012
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1 ## Copyright (C) 2010-2012 Ben Abbott |
| 11374 | 2 ## |
| 3 ## This file is part of Octave. | |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7 ## the Free Software Foundation; either version 3 of the License, or (at | |
| 8 ## your option) any later version. | |
| 9 ## | |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 16 ## along with Octave; see the file COPYING. If not, see | |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 ## -*- texinfo -*- | |
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20 ## @deftypefn {Function File} {@var{res} =} isprop (@var{h}, @var{prop}) |
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21 ## Return true if @var{prop} is a property of the object with handle @var{h}. |
| 11374 | 22 ## @seealso{get, set} |
| 23 ## @end deftypefn | |
| 24 | |
| 25 ## Author: Ben Abbott <bpabbott@mac.com> | |
| 26 | |
| 27 function res = isprop (h, prop) | |
| 28 ## Check input | |
| 29 if (nargin < 1 || nargin > 2) | |
| 30 print_usage (); | |
| 31 endif | |
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32 |
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33 if (! all (ishandle (h))) |
| 11374 | 34 error ("isprop: first input argument must be a handle"); |
| 35 elseif (! ischar (prop)) | |
| 36 error ("isprop: second input argument must be string"); | |
| 37 endif | |
| 38 | |
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39 res = false (size (h)); |
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40 for n = 1:numel(res) |
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41 res(n) = true; |
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42 try |
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43 v = get (h(n), prop); |
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44 catch |
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45 res(n) = false; |
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46 end_try_catch |
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47 endfor |
| 11374 | 48 endfunction |
| 49 | |
| 50 %!assert (isprop (0, "foobar"), false) | |
| 51 | |
| 52 %!assert (isprop (0, "screenpixelsperinch"), true) | |
| 53 | |
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54 %!assert (isprop (zeros (2, 3), "visible"), true (2, 3)) |
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55 |