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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2020.
author John W. Eaton <jwe@octave.org>
date Mon, 06 Jan 2020 22:29:51 -0500
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1 /*
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3 Copyright (C) 2009-2020 The Octave Project Developers
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4
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5 See the file COPYRIGHT.md in the top-level directory of this distribution
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6 or <https://octave.org/COPYRIGHT.html/>.
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7
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8
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9 This file is part of Octave.
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10
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11 Octave is free software: you can redistribute it and/or modify it
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12 under the terms of the GNU General Public License as published by
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13 the Free Software Foundation, either version 3 of the License, or
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14 (at your option) any later version.
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15
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16 Octave is distributed in the hope that it will be useful, but
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17 WITHOUT ANY WARRANTY; without even the implied warranty of
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18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 GNU General Public License for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with Octave; see the file COPYING. If not, see
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23 <https://www.gnu.org/licenses/>.
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24
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25 */
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26
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27 #if defined (HAVE_CONFIG_H)
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28 # include "config.h"
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29 #endif
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30
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31 #include "singleton-cleanup.h"
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32
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33 #include "cdisplay.h"
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34 #include "defun.h"
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35 #include "display.h"
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36 #include "error.h"
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37 #include "interpreter.h"
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38 #include "ov.h"
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39 #include "ovl.h"
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40
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41 namespace octave
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42 {
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43 void display_info::initialize (void)
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44 {
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45 int avail = 0;
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46
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47 const char *msg
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48 = octave_get_display_info (nullptr, &m_ht, &m_wd, &m_dp,
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49 &m_rx, &m_ry, &avail);
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50
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51 m_dpy_avail = avail;
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52
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53 if (msg)
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54 m_msg = msg;
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55 }
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56 }
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57
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58 DEFMETHOD (have_window_system, interp, , ,
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59 doc: /* -*- texinfo -*-
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60 @deftypefn {} {} have_window_system ()
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61 Return true if a window system is available (X11, Windows, or Apple OS X)
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62 and false otherwise.
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63 @seealso{isguirunning}
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64 @end deftypefn */)
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65 {
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66 octave::display_info& dpy_info = interp.get_display_info ();
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67
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68 return ovl (dpy_info.display_available ());
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69 }