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annotate scripts/java/msgbox.m @ 15750:05c781cca57e

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use numel instead of length in newly imported java functions
author John W. Eaton <jwe@octave.org>
date Fri, 07 Dec 2012 18:03:01 -0500
parents 54e8c2527a9e
children 0f1a143e5002
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1 ## Copyright (C) 2010 Martin Hepperle
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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} {@var{p} =} msgbox (@var{msg}, @var{title}, @var{ICON})
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21 ## Display @var{msg} using a message dialog.
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22 ##
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23 ## The message may have multiple lines separated by newline characters
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24 ## (@code{"\n"}), or it may be a cellstr array with one element for each
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25 ## line. The optional @var{title} (character string) can be used to
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26 ## decorate the dialog caption.
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27 ##
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28 ## The optional argument @var{icon} selects a dialog icon.
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29 ## It can be one of @code{"error"}, @code{"help"} or @code{"warn"}.
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30 ##
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31 ## The return value is always 1.
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32 ## @seealso{helpdlg, questdlg, warndlg}
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33 ## @end deftypefn
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34
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35 function retval = msgbox (message, varargin)
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36
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37 if (! ischar (message))
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38 if (iscell (message))
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39 message = cell2mlstr (message);
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40 else
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41 error ("msgbox: character string or cellstr array expected for message");
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42 endif
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43 endif
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44
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45 switch (numel (varargin))
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46 case 0
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47 title = "";
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48 dlg = "emptydlg";
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49
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50 case 1
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51 title = varargin{1};
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52 dlg = "emptydlg";
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53
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54 otherwise
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55 ## two or more arguments
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56 title = varargin{1};
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57 icon = varargin{2};
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58 if (strcmp (icon, "error"))
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59 dlg = "errordlg";
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60 elseif (strcmp (icon, "help"))
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61 dlg = "helpdlg";
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62 elseif (strcmp (icon, "warn"))
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63 dlg = "warndlg";
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64 else
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65 dlg = "emptydlg";
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66 end
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67 endswitch
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68
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69 if (! ischar (title))
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70 error ("msgbox: character string expected for title");
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71 endif
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72
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73 retval = java_invoke ("org.octave.JDialogBox", dlg, message, title );
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74
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75 endfunction