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annotate libinterp/corefcn/gtk-manager.cc @ 33617:ec2635a02328 bytecode-interpreter tip

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maint: Merge default to bytecode-interpreter.
author Markus Mützel <markus.muetzel@gmx.de>
date Tue, 21 May 2024 18:29:03 +0200
parents 2e484f9f1f18
children
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2007-2024 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
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include "error.h"
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31 #include "interpreter.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
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36 OCTAVE_BEGIN_NAMESPACE(octave)
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37
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38 graphics_toolkit
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39 gtk_manager::get_toolkit () const
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40 {
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41 graphics_toolkit retval;
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42
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43 if (m_dtk.empty ())
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44 error ("no graphics toolkits are available!");
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45
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46 auto pl = m_loaded_toolkits.find (m_dtk);
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47
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48 if (pl == m_loaded_toolkits.end ())
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49 {
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50 auto pa = m_available_toolkits.find (m_dtk);
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51
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52 if (pa == m_available_toolkits.end ())
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53 error ("default graphics toolkit '%s' is not available!",
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54 m_dtk.c_str ());
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55
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56 octave_value_list args;
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57 args(0) = m_dtk;
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58 m_interpreter.feval ("graphics_toolkit", args);
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59
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60 pl = m_loaded_toolkits.find (m_dtk);
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61
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62 if (pl == m_loaded_toolkits.end ())
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63 error ("failed to load %s graphics toolkit", m_dtk.c_str ());
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64
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65 retval = pl->second;
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66 }
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67 else
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68 retval = pl->second;
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69
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70 return retval;
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71 }
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72
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73 void
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74 gtk_manager::register_toolkit (const std::string& name)
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75 {
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76 if (m_dtk.empty () || name == "qt"
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77 || (name == "fltk"
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78 && m_available_toolkits.find ("qt") == m_available_toolkits.end ()))
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79 m_dtk = name;
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80
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81 m_available_toolkits.insert (name);
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82 }
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83
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84 void
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85 gtk_manager::unregister_toolkit (const std::string& name)
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86 {
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87 m_available_toolkits.erase (name);
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88
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89 if (m_dtk == name)
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90 {
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91 if (m_available_toolkits.empty ())
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92 m_dtk.clear ();
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93 else
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94 {
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95 auto pa = m_available_toolkits.cbegin ();
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96
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97 m_dtk = *pa++;
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98
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99 while (pa != m_available_toolkits.cend ())
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100 {
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101 std::string tk_name = *pa++;
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102
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103 if (tk_name == "qt"
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104 || (tk_name == "fltk"
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105 && (m_available_toolkits.find ("qt")
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106 == m_available_toolkits.cend ())))
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107 m_dtk = tk_name;
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108 }
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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 OCTAVE_END_NAMESPACE(octave)