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annotate scripts/prefs/rmpref.m @ 17420:95bfa04ab514

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Fix bug in colorbar demo #24. set() is broken from deep within listener hierarchy. Workaround it. * scripts/plot/colorbar.m(update_colorbar_clim): Set axis limits in listener and then jiggle the axis position to force a redraw.
author Rik <rik@octave.org>
date Wed, 11 Sep 2013 16:05:40 -0700
parents ac8520c03fc9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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72c96de7a403 maint: update copyright notices for 2012
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1 ## Copyright (C) 2012 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} rmpref (@var{group})
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21 ## @deftypefnx {Function File} {} rmpref (@var{group}, @var{pref})
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22 ## Remove the named preference @var{pref} from the preference group
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23 ## @var{group}.
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24 ##
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25 ## The named preference group must be a character string.
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26 ##
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27 ## The preference @var{pref} may be a character string or cell array
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28 ## of strings.
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29 ##
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30 ## If @var{pref} is not specified, remove the preference group
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31 ## @var{group}.
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32 ##
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33 ## It is an error to remove a nonexistent preference or group.
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34 ## @seealso{addpref, ispref, setpref, getpref}
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35 ## @end deftypefn
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36
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37 ## Author: jwe
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38
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39 function retval = rmpref (group, pref)
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40
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41 if (nargin < 1 || nargin > 2)
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42 print_usage ();
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43 elseif (! ischar (group))
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44 error ("rmpref: GROUP must be a string");
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45 elseif (nargin == 2 && ! (ischar (pref) || iscellstr (pref)))
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46 error ("rmpref: PREF must be a string or cell array of strings");
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47 endif
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48
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49 if (nargin == 1)
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50 if (ispref (group))
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51 prefs = loadprefs ();
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52 prefs = rmfield (prefs, group);
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53 saveprefs (prefs);
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54 else
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55 error ("rmpref: group <%s> does not exist", group);
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56 endif
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57 else
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58 valid = ispref (group, pref);
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59 if (all (valid))
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60 prefs = loadprefs ();
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61 prefs.(group) = rmfield (prefs.(group), pref);
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62 saveprefs (prefs);
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63 else
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64 if (! ispref (group))
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65 error ("rmpref: group <%s> does not exist", group);
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66 else
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67 idx = find (! valid, 1);
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68 error ("rmpref: pref <%s> does not exist", (cellstr (pref)){idx} );
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69 endif
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70 endif
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71 endif
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72
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73 endfunction
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74
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75
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76 ## Testing these functions will require some care to avoid wiping out
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77 ## existing (or creating unwanted) preferences for the user running the
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78 ## tests.
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79
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80 ## Test input validation
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81 %!error rmpref ()
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82 %!error rmpref (1,2,3)
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83 %!error rmpref ({"__group1__"})
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84 %!error rmpref ("__group1__", 1)
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85