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annotate gui/src/OctaveLink.cpp @ 13517:86adc9c4ec4b

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author Jacob Dawid <jacob.dawid@googlemail.com>
date Tue, 19 Jul 2011 15:18:47 +0200
parents c70511cf64ee
children bace956a3724
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1 /*
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2
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3 Copyright (C) 2007,2008,2009 John P. Swensen
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4 Copyright (C) 2010, 2011 Jacob Dawid
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5
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6 Octave is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 Octave is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with Octave; see the file COPYING. If not, write to the Free
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18 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 02110-1301, USA.
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20
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21 */
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22
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23 // Born July 13, 2007.
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24
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25 #include "OctaveLink.h"
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26
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27 OctaveLink
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28 OctaveLink::m_singleton;
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29
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30
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31 OctaveLink::OctaveLink ():QObject (), m_previousHistoryLength (0)
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32 {
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33 m_symbolTableSemaphore = new QSemaphore (1);
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34 m_historySemaphore = new QSemaphore (1);
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35 }
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36
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37 OctaveLink::~OctaveLink ()
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38 {
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39 }
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40
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41 int
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42 OctaveLink::readlineEventHook ()
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43 {
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44 OctaveLink::instance ()->processOctaveServerData ();
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45 return 0;
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46 }
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47
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48 QString
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49 OctaveLink::octaveValueAsQString (OctaveValue octaveValue)
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50 {
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51 // Convert single qouted string.
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52 if (octaveValue.is_sq_string ())
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53 {
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54 return QString ("\'%1\'").arg (octaveValue.string_value ().c_str ());
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55
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56 // Convert double qouted string.
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57 }
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58 else if (octaveValue.is_dq_string ())
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59 {
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60 return QString ("\"%1\"").arg (octaveValue.string_value ().c_str ());
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61
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62 // Convert real scalar.
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63 }
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64 else if (octaveValue.is_real_scalar ())
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65 {
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66 return QString ("%1").arg (octaveValue.scalar_value ());
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67
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68 // Convert complex scalar.
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69 }
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70 else if (octaveValue.is_complex_scalar ())
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71 {
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72 return QString ("%1 + %2i").arg (octaveValue.scalar_value ()).
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73 arg (octaveValue.complex_value ().imag ());
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74
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75 // Convert range.
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76 }
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77 else if (octaveValue.is_range ())
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78 {
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79 return QString ("%1 : %2 : %3").arg (octaveValue.range_value ().
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80 base ()).arg (octaveValue.
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81 range_value ().
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82 inc ()).
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83 arg (octaveValue.range_value ().limit ());
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84
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85 // Convert real matrix.
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86 }
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87 else if (octaveValue.is_real_matrix ())
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88 {
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89 // TODO: Convert real matrix into a string.
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90 return QString ("{matrix}");
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91
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92 // Convert complex matrix.
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93 }
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94 else if (octaveValue.is_complex_matrix ())
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95 {
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96 // TODO: Convert complex matrix into a string.
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97 return QString ("{complex matrix}");
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98
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99 // If everything else does not fit, we could not recognize the type.
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100 }
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101 else
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102 {
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103 return QString ("<Type not recognized>");
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104 }
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105 }
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106
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107 void
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108 OctaveLink::fetchSymbolTable ()
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109 {
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110 m_symbolTableSemaphore->acquire ();
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111 m_symbolTableBuffer.clear ();
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112 std::list < SymbolRecord > allVariables = symbol_table::all_variables ();
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113 std::list < SymbolRecord >::iterator iterator;
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114 for (iterator = allVariables.begin (); iterator != allVariables.end ();
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115 iterator++)
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116 m_symbolTableBuffer.append (iterator->dup ());
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117 m_symbolTableSemaphore->release ();
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118 emit symbolTableChanged ();
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119 }
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120
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121
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122 void
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123 OctaveLink::fetchHistory ()
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124 {
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125 int currentLen = command_history::length ();
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126 if (currentLen != m_previousHistoryLength)
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127 {
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128 m_historySemaphore->acquire ();
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129 for (int i = m_previousHistoryLength; i < currentLen; i++)
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130 {
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131 QString entry = QString(command_history::get_entry (i).c_str());
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132 if (!entry.startsWith ("#"))
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133 m_historyBuffer.append (entry);
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134 }
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135 m_historySemaphore->release ();
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136 m_previousHistoryLength = currentLen;
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137 emit historyChanged ();
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138 }
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139 }
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140
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141 QList < SymbolRecord > OctaveLink::currentSymbolTable ()
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142 {
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143 QList < SymbolRecord > m_symbolTableCopy;
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144
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145 // Generate a deep copy of the current symbol table.
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146 m_symbolTableSemaphore->acquire ();
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147 foreach (SymbolRecord symbolRecord, m_symbolTableBuffer)
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148 m_symbolTableCopy.append (symbolRecord.dup ());
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149 m_symbolTableSemaphore->release ();
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150
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151 return m_symbolTableCopy;
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152 }
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153
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154 QStringList
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155 OctaveLink::currentHistory ()
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156 {
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157 m_historySemaphore->acquire ();
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158 QStringList historyBuffer = m_historyBuffer;
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159 m_historySemaphore->release ();
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160 return historyBuffer;
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161 }
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162
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163 void
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164 OctaveLink::processOctaveServerData ()
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165 {
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166 fetchSymbolTable ();
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167 fetchHistory ();
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168 }