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annotate libgui/src/octave-adapter/octave-link.cc @ 15204:359098ad343e

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update copyright notices in libgui directory * documentation-dockwidget.cc, documentation-dockwidget.h, files-dockwidget.cc, files-dockwidget.h, history-dockwidget.cc, history-dockwidget.h, m-editor/file-editor-interface.h, m-editor/file-editor-tab.cc, m-editor/file-editor-tab.h, m-editor/file-editor.cc, m-editor/file-editor.h, m-editor/lexer-octave-gui.cc, m-editor/lexer-octave-gui.h, main-window.cc, main-window.h, octave-adapter/octave-event-listener.h, octave-adapter/octave-event-observer.h, octave-adapter/octave-event.cc, octave-adapter/octave-event.h, octave-adapter/octave-link.cc, octave-adapter/octave-link.h, octave-adapter/octave-main-thread.cc, octave-adapter/octave-main-thread.h, octave-gui.cc, octave-qt-event-listener.cc, octave-qt-event-listener.h, resource-manager.cc, resource-manager.h, settings-dialog.cc, settings-dialog.h, symbol-information.cc, symbol-information.h, terminal-dockwidget.cc, terminal-dockwidget.h, welcome-wizard.cc, welcome-wizard.h, workspace-model.cc, workspace-model.h, workspace-view.cc, workspace-view.h: Use copyright notice format that is consistent with other files in Octave.
author John W. Eaton <jwe@octave.org>
date Mon, 20 Aug 2012 14:02:08 -0400
parents 017f0b2e6933
children eec0d1fcba4f
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rev   line source
15204
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1 /*
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2
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3 Copyright (C) 2011-2012 Jacob Dawid
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4 Copyright (C) 2011-2012 John P. Swensen
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #ifdef HAVE_CONFIG_H
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25 #include <config.h>
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26 #endif
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27
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28 #include "cmd-edit.h"
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29 #include "oct-env.h"
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30 #include "oct-mutex.h"
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31 #include "symtab.h"
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32 #include "toplev.h"
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33
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34 #include "octave-link.h"
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35
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36 int octave_readline_hook ()
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37 {
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38 octave_link::instance ()->entered_readline_hook ();
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39 octave_link::instance ()->generate_events ();
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40 octave_link::instance ()->process_events ();
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41 octave_link::instance ()->finished_readline_hook ();
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42 return 0;
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43 }
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44
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45 void octave_exit_hook (int status)
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46 {
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47 (void) status;
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48 octave_link::instance ()->about_to_exit ();
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49 }
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50
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51 octave_link octave_link::_singleton;
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52
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53 octave_link::octave_link ()
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54 {
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55 _event_queue_mutex = new octave_mutex ();
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56 _last_working_directory = "";
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57 _debugging_mode_active = false;
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58 }
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59
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60 octave_link::~octave_link ()
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61 {
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62 }
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63
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64 void
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65 octave_link::launch_octave ()
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66 {
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67 // Create both threads.
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68 _octave_main_thread = new octave_main_thread ();
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69 command_editor::add_event_hook (octave_readline_hook);
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70 octave_exit = octave_exit_hook;
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71
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72 // Start the first one.
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73 _octave_main_thread->start ();
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74 }
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75
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76 void
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77 octave_link::register_event_listener (octave_event_listener *oel)
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78 { _octave_event_listener = oel; }
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79
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80 void
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81 octave_link::generate_events ()
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82 {
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83 std::string current_working_directory = octave_env::get_current_directory ();
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84 if (current_working_directory != _last_working_directory)
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85 {
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86 _last_working_directory = current_working_directory;
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87 if (_octave_event_listener)
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88 _octave_event_listener
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89 ->current_directory_has_changed (_last_working_directory);
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90 }
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91
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92 if (_debugging_mode_active != Vdebugging)
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93 {
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94 _debugging_mode_active = Vdebugging;
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95 if (_octave_event_listener)
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96 {
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97 if (_debugging_mode_active)
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98 _octave_event_listener->entered_debug_mode ();
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99 else
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100 _octave_event_listener->quit_debug_mode ();
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101 }
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102 }
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103 }
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104
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105 void
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106 octave_link::process_events ()
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107 {
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108 _event_queue_mutex->lock ();
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109
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110 while (_event_queue.size () > 0)
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111 {
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112 octave_event * e = _event_queue.front ();
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113 _event_queue.pop ();
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114 if (e->perform ())
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115 e->accept ();
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116 else
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117 e->reject ();
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118 }
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119 _event_queue_mutex->unlock ();
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120 }
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121
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122 void
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123 octave_link::post_event (octave_event *e)
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124 {
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125 if (e)
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126 {
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127 _event_queue_mutex->lock ();
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128 _event_queue.push (e);
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129 _event_queue_mutex->unlock ();
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130 }
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131 }
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132
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133 void
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134 octave_link::event_accepted (octave_event *e)
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135 { delete e; }
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136
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137 void
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138 octave_link::event_reject (octave_event *e)
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139 { delete e; }
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140
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141 void
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142 octave_link::about_to_exit ()
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143 {
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144 _event_queue_mutex->lock ();
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145 while (!_event_queue.empty ())
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146 _event_queue.pop ();
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147
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148 _event_queue_mutex->unlock ();
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149
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150 if (_octave_event_listener)
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151 _octave_event_listener->about_to_exit ();
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152 }
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153
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154 void
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155 octave_link::entered_readline_hook ()
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156 { }
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157
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158 void
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159 octave_link::finished_readline_hook ()
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160 {
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161 }
14804
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162
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163 std::string
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164 octave_link::get_last_working_directory ()
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165 {
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166 return _last_working_directory;
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167 }