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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 (octave_display_h)
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28 #define octave_display_h 1
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29
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30 #include "octave-config.h"
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31
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32 #include <string>
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34 class Matrix;
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36 namespace octave
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37 {
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38 class display_info
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39 {
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40 public:
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41
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42 // Create object with default values. To be useful, you must call
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43 // initialize to find the actual system parameters for the given
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44 // display.
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45
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46 display_info (void)
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47 : m_rx (72), m_ry (72), m_ht (1), m_wd (1), m_dp (0),
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48 m_dpy_avail (false), m_msg ()
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49 { }
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50
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51 ~display_info (void) = default;
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52
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53 display_info (const display_info&) = default;
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54
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55 display_info& operator = (const display_info&) = default;
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56
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57 void initialize (void);
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58
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59 double x_dpi (void) const { return m_rx; }
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60
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61 double y_dpi (void) const { return m_ry; }
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62
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63 int height (void) const { return m_ht; }
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64
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65 int width (void) const { return m_wd; }
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66
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67 int depth (void) const { return m_dp; }
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68
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69 bool display_available (void) const { return m_dpy_avail; }
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71 std::string message (void) const { return m_msg; }
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73 private:
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74
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75 // X- and Y- Resolution of the display in dots (pixels) per inch.
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76 double m_rx;
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77 double m_ry;
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78
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79 // Height, width, and depth of the display.
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80 int m_ht;
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81 int m_wd;
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82 int m_dp;
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83
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84 bool m_dpy_avail;
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85
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86 // Message associated with any initiailization failure. Set if
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87 // m_dpy_avail is false.
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88 std::string m_msg;
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89 };
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90 }
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91
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92 #endif