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annotate scripts/plot/guihandles.m @ 13699:dd9b32af0a01

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Implement guidata/guihandles. * graphics.h.in (figure::properties::__guidata__): New hidden property. * plot/modules.mk (plot_FCN_FILES): Add guidata.m and guihandles.m. * plot/guidata.m: New file. * plot/guihandles.m: Likewise.
author Michael Goffioul <michael.goffioul@gmail.com>
date Thu, 13 Oct 2011 23:01:44 +0100
parents
children 72c96de7a403
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13699
dd9b32af0a01 Implement guidata/guihandles.
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1 ## Copyright (C) 2011 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} {@var{hdata} =} guihandles (@var{handle})
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21 ## @deftypefnx {Function File} {@var{hdata} =} guihandles
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22 ## @end deftypefn
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23
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24 ## Author: goffioul
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25
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26 function hdata = guihandles (varargin)
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27
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28 hdata = [];
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29
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30 if (nargin == 0 || nargin == 1)
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31 if (nargin == 1)
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32 h = varargin{1};
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33 if (ishandle (h))
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34 h = ancestor (h, "figure");
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35 if (isempty (h))
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36 error ("no ancestor figure found");
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37 endif
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38 else
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39 error ("invalid object handle");
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40 endif
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41 else
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42 h = gcf ();
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43 endif
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44 hdata = __make_guihandles_struct__ (h, hdata);
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45 else
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46 print_usage ();
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47 endif
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48
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49 endfunction
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50
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51 function hdata = __make_guihandles_struct__ (h, hdata)
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52
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53 tag = get (h, "tag");
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54 if (! isempty (tag))
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55 if (isfield (hdata, tag))
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56 hdata.(tag) = [hdata.(tag), h];
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57 else
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58 try
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59 hdata.(tag) = h;
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60 catch
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61 end_try_catch
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62 endif
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63 endif
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64
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65 kids = allchild (h);
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66 for i = 1 : length (kids)
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67 hdata = __make_guihandles_struct__ (kids(i), hdata);
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68 endfor
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69
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70 endfunction