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annotate scripts/deprecated/mouse_wheel_zoom.m @ 20279:db30302bedc3

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Added tag rc-4-0-0-3 for changeset 065f933ef083
author John W. Eaton <jwe@octave.org>
date Fri, 10 Apr 2015 14:41:21 -0400
parents 47440b762547
children
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1 ## Copyright (C) 2007-2013 Shai Ayal
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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 {Loadable Function} {@var{old_val} =} mouse_wheel_zoom (@var{new_val})
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21 ## Query or set the mouse wheel zoom factor.
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22 ##
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23 ## The zoom factor is a number in the range (0,1) which is the
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24 ## percentage of the current axis limits that will be used when zooming.
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25 ## For example, if the current x-axis limits are [0, 50] and
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26 ## @code{mouse_wheel_zoom} is 0.4 (40%), then a zoom operation will
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27 ## change the limits by 20.
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28 #### @end deftypefn
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29
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30 ## Deprecated in 4.0
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31
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32 function retval = mouse_wheel_zoom (val)
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33
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34 persistent warned = false;
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35 if (! warned)
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36 warned = true;
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37 warning ("Octave:deprecated-function",
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38 "mouse_wheel_zoom is obsolete and will be removed from a future version of Octave, please use the mousehweelzoom axes property instead");
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39 endif
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40
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41 if (nargin != 1)
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42 print_usage ();
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43 endif
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44
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45 fig = get (0, "currentfigure");
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46 if (isempty (fig))
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47 retval = get (0, "defaultaxesmousewheelzoom");
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48 set (0, "defaultaxesmousewheelzoom", val);
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49 else
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50 retval = get (gca, "mousewheelzoom");
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51 set (gca, "mousewheelzoom", val);
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52 endif
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53
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54 endfunction
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55