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annotate scripts/plot/__uiobject_init_figure__.in @ 6257:44c91c5dfe1d

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[project @ 2007-01-30 19:16:52 by jwe]
author jwe
date Tue, 30 Jan 2007 19:16:55 +0000
parents
children b649aa46950d
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1 ## Copyright (C) 2005 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 2, or (at your option)
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8 ## 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, write to the Free
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17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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18 ## 02110-1301, USA.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {@var{f} =} __uiobject_init_figure__ (@var{f})
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22 ## Create figure in __uiobject_list__ and make it the current figure.
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23 ## If @var{f} already exists, make it the current figure but don't
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24 ## reinitialize it. If @var{f} is not specified, allocate a new
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25 ## figure handle and initialize it.
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26 ## @end deftypefn
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27
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28 ## Author: jwe
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29
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30 function f = __uiobject_init_figure__ (f)
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31
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32 __uiobject_globals__;
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33
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34 if (nargin == 0 || nargin == 1)
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35
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36 if (nargin == 0)
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37 if (isempty (__uiobject_figure_handles_free_list__))
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38 f = max (__uiobject_handles__) + 1;
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39 else
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40 f = __uiobject_figure_handles_free_list__(1);
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41 __uiobject_figure_handles_free_list__(1) = [];
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42 endif
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43 endif
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44
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45 __uiobject_handles__ = union (__uiobject_handles__, f);
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46
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47 if (! ishandle (f))
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48 idx = __uiobject_alloc__ ();
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49 __uiobject_list__(idx).handle = f;
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50 __uiobject_list__(idx).object = __uiobject_figure_ctor__ ();
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51 __uiobject_adopt__ (0, f);
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52 endif
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53 set (0, "currentfigure", f);
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54 else
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55 print_usage ();
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56 endif
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57
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58 endfunction