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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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children bd51beb6205e
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1 /*
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2
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3 Copyright (C) 2007-2020 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 "error.h"
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32 #include "graphics-toolkit.h"
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33 #include "gtk-manager.h"
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34 #include "ovl.h"
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35 #include "parse.h"
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36
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37 namespace octave
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38 {
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39 graphics_toolkit
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40 gtk_manager::get_toolkit (void) const
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41 {
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42 graphics_toolkit retval;
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43
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44 if (dtk.empty ())
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45 error ("no graphics toolkits are available!");
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46
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47 auto pl = loaded_toolkits.find (dtk);
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48
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49 if (pl == loaded_toolkits.end ())
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50 {
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51 auto pa = available_toolkits.find (dtk);
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52
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53 if (pa == available_toolkits.end ())
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54 error ("default graphics toolkit '%s' is not available!",
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55 dtk.c_str ());
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56
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57 octave_value_list args;
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58 args(0) = dtk;
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59 feval ("graphics_toolkit", args);
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60
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61 pl = loaded_toolkits.find (dtk);
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62
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63 if (pl == loaded_toolkits.end ())
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64 error ("failed to load %s graphics toolkit", dtk.c_str ());
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65
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66 retval = pl->second;
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67 }
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68 else
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69 retval = pl->second;
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70
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71 return retval;
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72 }
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73
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74 void
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75 gtk_manager::register_toolkit (const std::string& name)
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76 {
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77 if (dtk.empty () || name == "qt"
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78 || (name == "fltk"
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79 && available_toolkits.find ("qt") == available_toolkits.end ()))
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80 dtk = name;
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81
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82 available_toolkits.insert (name);
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83 }
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84
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85 void
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86 gtk_manager::unregister_toolkit (const std::string& name)
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87 {
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88 available_toolkits.erase (name);
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89
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90 if (dtk == name)
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91 {
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92 if (available_toolkits.empty ())
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93 dtk.clear ();
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94 else
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95 {
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96 auto pa = available_toolkits.cbegin ();
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97
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98 dtk = *pa++;
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99
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100 while (pa != available_toolkits.cend ())
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101 {
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102 std::string tk_name = *pa++;
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103
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104 if (tk_name == "qt"
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105 || (tk_name == "fltk"
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106 && (available_toolkits.find ("qt")
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107 == available_toolkits.cend ())))
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108 dtk = tk_name;
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109 }
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110 }
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111 }
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112 }
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113 }