Mercurial > hg > octave-lyh

annotate gui/src/octave-adapter/octave-link.h @ 14713:565ddd85565e gui

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Added comments for the octave-adapter module. * octave-adapter/octave-link.h: Added comments. * octave-adapter/octave-main-thread.h: Added comments. * octave-adapter/symbol-information.h: Added comments.
author Jacob Dawid <jacob.dawid@googlemail.com>
date Sat, 02 Jun 2012 13:57:51 +0200
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children 4ff6c21c18c4
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1 /* OctaveGUI - A graphical user interface for Octave
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2 * Copyright (C) 2011 John P. Swensen, Jacob Dawid (jacob.dawid@googlemail.com)
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3 *
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4 * This program is free software: you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as
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6 * published by the Free Software Foundation, either version 3 of the
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7 * License, or (at your option) any later version.
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8 *
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9 * This program is distributed in the hope that it will be useful,
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 * GNU General Public License for more details.
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13 *
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14 * You should have received a copy of the GNU General Public License
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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16 */
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17
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18 #ifndef OCTAVELINK_H
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19 #define OCTAVELINK_H
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20
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21 // Octave includes
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22 #undef PACKAGE_BUGREPORT
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23 #undef PACKAGE_NAME
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24 #undef PACKAGE_STRING
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25 #undef PACKAGE_TARNAME
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26 #undef PACKAGE_VERSION
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27 #undef PACKAGE_URL
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28 #include "octave/config.h"
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29 #include "octave/cmd-edit.h"
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30 #include "octave/error.h"
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31 #include "octave/file-io.h"
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32 #include "octave/input.h"
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33 #include "octave/lex.h"
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34 #include "octave/load-path.h"
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35 #include "octave/octave.h"
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36 #include "octave/oct-hist.h"
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37 #include "octave/oct-map.h"
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38 #include "octave/oct-obj.h"
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39 #include "octave/ops.h"
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40 #include "octave/ov.h"
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41 #include "octave/ov-usr-fcn.h"
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42 #include "octave/symtab.h"
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43 #include "octave/pt.h"
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44 #include "octave/pt-eval.h"
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45 #include "octave/config.h"
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46 #include "octave/Range.h"
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47 #include "octave/toplev.h"
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48 #include "octave/procstream.h"
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49 #include "octave/sighandlers.h"
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50 #include "octave/debug.h"
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51 #include "octave/sysdep.h"
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52 #include "octave/ov.h"
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53 #include "octave/unwind-prot.h"
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54 #include "octave/utils.h"
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55 #include "octave/variables.h"
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56
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57 // Standard includes
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58 #include <iostream>
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59 #include <string>
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60 #include <vector>
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61 #include <readline/readline.h>
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62
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63 // Qt includes
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64 #include <QMutexLocker>
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65 #include <QMutex>
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66 #include <QFileInfo>
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67 #include <QList>
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68 #include <QString>
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69 #include <QStringList>
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70 #include <QVector>
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71 #include <QSemaphore>
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72 #include <QObject>
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73 #include <QStringListModel>
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74 #include <QTimer>
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75
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76 #include "workspace-model.h"
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77 #include "octave-main-thread.h"
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78 #include "symbol-information.h"
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79
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80 /**
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81 * \class OctaveLink
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82 * \brief Provides threadsafe access to octave.
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83 * \author Jacob Dawid
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84 * This class is a wrapper around octave and provides threadsafety by
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85 * buffering access operations to octave and executing them in the readline
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86 * even hook, which lives in the octave thread.
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87 */
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88 class octave_link : public QObject
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89 {
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90 Q_OBJECT
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91 public:
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92 /** Provides a way to access the unique octave_link object. */
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93 static octave_link *
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94 instance () { return &_singleton; }
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95
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96 /** Starts octave. */
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97 void launch_octave ();
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98
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99 /** Attempts to close octave. */
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100 void terminate_octave ();
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101
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102 /** Returns the current history model. */
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103 QStringListModel *get_history_model ();
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104
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105 /** Returns the current workspace model. */
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106 workspace_model *get_workspace_model ();
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107
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108 /** Triggers an update of the history model. */
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109 void trigger_update_history_model ();
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110
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111 /** Updates the current working directory. */
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112 void update_current_working_directory ();
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113
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114 /** Acquires the symbol information. You need to acquire that before
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115 * actually accessing it. Make sure that you release it properly in order
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116 * to avoid deadlocks. */
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117 void acquire_symbol_information ();
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118
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119 /** Releases access to the symbol information. */
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120 void release_symbol_information ();
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121
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122 /** Update symbol information from octave's symboltable. */
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123 void build_symbol_information ();
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124
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125 /** Provides acces to the current symbol information.
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126 * WARNING: Always acquire the symbol information before actually
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127 * using it and make sure you release it properly afterwards.
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128 */
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129 const QList <symbol_information>& get_symbol_information () const;
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130
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131 signals:
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132 /** Emitted, whenever the working directory of octave changed. */
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133 void working_directory_changed (QString directory);
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134
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135 private:
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136 /** Singleton. */
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137 octave_link ();
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138 ~octave_link ();
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139
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140 /** Stores the current history_model. */
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141 QStringListModel *_history_model;
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142
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143 /** Stores the current workspace model. */
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144 workspace_model *_workspace_model;
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145
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146 /** Thread running octave_main. */
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147 octave_main_thread *_octave_main_thread;
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148
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149 /** Timer for periodically updating the workspace model from the current
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150 * symbol information. */
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151 QTimer _update_workspace_model_timer;
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152
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153 /** Semaphore to lock access to the symbol information. */
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154 QSemaphore *_symbol_information_semaphore;
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155
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156 /** Stores the current symbol information. */
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157 QList <symbol_information> _symbol_information;
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158
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159 /** Stores the last known current working directory of octave. */
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160 QString _current_working_directory;
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161
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162 /** Unique instance. Singelton! */
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163 static octave_link _singleton;
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164 };
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165 #endif // OCTAVELINK_H