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annotate libinterp/corefcn/gtk-manager.h @ 31225:3eab70385569

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sparse-xpow.cc: Use faster multiplication technique, this time for complex
author Arun Giridhar <arungiridhar@gmail.com>
date Sun, 11 Sep 2022 13:53:38 -0400
parents 796f54d4ddbf
children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2007-2022 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 (octave_gtk_manager_h)
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27 #define octave_gtk_manager_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <map>
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32 #include <set>
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33 #include <string>
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34
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35 #include "Cell.h"
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36 #include "graphics-toolkit.h"
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37
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38 namespace octave
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39 {
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40 class OCTINTERP_API gtk_manager
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41 {
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42 public:
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43
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44 gtk_manager (void) { }
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45
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46 ~gtk_manager (void)
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47 {
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48 unload_all_toolkits ();
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49 }
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50
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51 graphics_toolkit get_toolkit (void) const;
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52
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53 void register_toolkit (const std::string& name);
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54
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55 void unregister_toolkit (const std::string& name);
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56
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57 void load_toolkit (const graphics_toolkit& tk)
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58 {
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59 m_loaded_toolkits[tk.get_name ()] = tk;
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60 }
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61
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62 void unload_toolkit (const std::string& name)
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63 {
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64 m_loaded_toolkits.erase (name);
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65 }
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66
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67 graphics_toolkit find_toolkit (const std::string& name) const
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68 {
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69 auto p = m_loaded_toolkits.find (name);
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70
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71 if (p != m_loaded_toolkits.end ())
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72 return p->second;
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73 else
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74 return graphics_toolkit ();
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75 }
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76
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77 Cell available_toolkits_list (void) const
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78 {
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79 Cell m (1, m_available_toolkits.size ());
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80
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81 octave_idx_type i = 0;
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82 for (const auto& tkit : m_available_toolkits)
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83 m(i++) = tkit;
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84
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85 return m;
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86 }
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87
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88 Cell loaded_toolkits_list (void) const
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89 {
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90 Cell m (1, m_loaded_toolkits.size ());
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91
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92 octave_idx_type i = 0;
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93 for (const auto& nm_tkit_p : m_loaded_toolkits)
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94 m(i++) = nm_tkit_p.first;
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95
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96 return m;
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97 }
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98
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99 void unload_all_toolkits (void)
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100 {
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101 while (! m_loaded_toolkits.empty ())
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102 {
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103 auto p = m_loaded_toolkits.begin ();
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104
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105 std::string name = p->first;
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106
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107 p->second.close ();
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108
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109 // The toolkit may have unloaded itself. If not, we'll do it here.
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110 if (m_loaded_toolkits.find (name) != m_loaded_toolkits.end ())
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111 unload_toolkit (name);
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112 }
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113 }
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114
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115 std::string default_toolkit (void) const { return m_dtk; }
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116
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117 private:
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118
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119 // The name of the default toolkit.
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120 std::string m_dtk;
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121
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122 // The list of toolkits that we know about.
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123 std::set<std::string> m_available_toolkits;
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124
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125 // The list of toolkits we have actually loaded.
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126 std::map<std::string, graphics_toolkit> m_loaded_toolkits;
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127 };
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128 }
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129
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130 #endif