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annotate scripts/gui/uiwait.m @ 18126:d76f790b4eec gui-release

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enable do_braindead_shortcircuit_evaluation by default and deprecate * octave.cc (maximum_braindamage): Don't call Fdo_brainded_shortcircuit_evaluation. * pt-exp.h (tree_expression::mark_braindead_shortcircuit): Eliminate file name argument. * pt-binop.h, pt-binop.cc (tree_binary_expression::mark_braindead_shortcircuit): Likewise. * oct-parse.in.yy (if_cmd_list1, elseif_clause, loop_command): Eliminate argument from call to mark_braindead_shortcircuit. * pt-binop.h, pt-binop.cc (Vdo_braindead_shortcircuit_evaluation): Initialize to true. (tree_binary_expression::matlab_style_short_circuit_warning): New function. (tree_binary_expression::rvalue1): Call matlab_style_short_circuit_warning if short circuit evaluation occurs. (Fdo_braindead_shortcircuit_evaluation): Display deprecated warning. Delete tests for do_braindead_shortcircuit_evaluation. (tree_binary_expression::braindead_shortcircuit_warning_issued): New member variable. * NEWS: Mention change in default value and deprecated function.
author John W. Eaton <jwe@octave.org>
date Wed, 11 Dec 2013 20:51:22 -0500
parents d63878346099
children 4197fc428c7d
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d63878346099 maint: Update copyright notices for release.
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1 ## Copyright (C) 2012-2013 Michael Goffioul
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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} {} uiwait
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21 ## @deftypefnx {Function File} {} uiwait (@var{h})
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22 ## @deftypefnx {Function File} {} uiwait (@var{h}, @var{timeout})
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23 ## Suspend program execution until the figure with handle @var{h} is
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24 ## deleted or @code{uiresume} is called. When no figure handle is specified,
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25 ## this function uses the current figure.
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26 ##
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27 ## If the figure handle is invalid or there is no current figure, this
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28 ## functions returns immediately.
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29 ##
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30 ## When specified, @var{timeout} defines the number of seconds to wait
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31 ## for the figure deletion or the @code{uiresume} call. The timeout value
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32 ## must be at least 1. If a smaller value is specified, a warning is issued
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33 ## and a timeout value of 1 is used instead. If a non-integer value is
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34 ## specified, it is truncated towards 0. If @var{timeout} is not specified,
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35 ## the program execution is suspended indefinitely.
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36 ## @seealso{uiresume, waitfor}
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37 ## @end deftypefn
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38
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39 ## Author: goffioul
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40
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41 function uiwait (varargin)
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42
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43 h = [];
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44 timeout = [];
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45
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46 if (nargin == 0)
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47 h = get (0, "currentfigure");
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48 else
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49 h = varargin{1};
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50 if (! isfigure (h))
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51 error ("uiwait: invalid figure handle H");
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52 endif
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53 if (nargin > 1)
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54 timeout = varargin{2};
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55 endif
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56 endif
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57
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58 if (! isempty (h))
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59 unwind_protect
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60 try
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61 addproperty ("__uiwait_state__", h, "radio", "none|{active}|triggered");
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62 catch
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63 if (! strcmp (get (h, "__uiwait_state__"), "none"))
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64 error ("uiwait: an active uiwait call for this figure already exists");
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65 endif
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66 set (h, "__uiwait_state__", "active");
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67 end_try_catch
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68 waitfor_args = {h, "__uiwait_state__", "triggered"};
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69 if (! isempty (timeout))
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70 waitfor_args(end+1:end+2) = {"timeout", timeout};
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71 endif
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72 waitfor (waitfor_args{:});
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73 unwind_protect_cleanup
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74 if (ishandle (h) && isprop (h, "__uiwait_state__"))
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75 set (h, "__uiwait_state__", "none");
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76 endif
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77 end_unwind_protect
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78 endif
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79
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80 endfunction
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81