Mercurial > octave
annotate libgui/src/interpreter-qobject.cc @ 29292:eb1e10abe9d5
use method in interpreter class to interrupt interpreter execution in GUI
* interpreter.h, interpreter.cc (interpreter::interrupt): New function.
* interpreter-qobject.h, interpreter-qobject.cc
(interpreter_qobject::interrupt): New function.
* octave-qobject.h, octave-qobject.cc
(octave_qobject::interpreter_interrupt): New slot.
* terminal-dock-widget.h, terminal-dock-widget.cc ():
(terminal_dock_widget::terminal_dock_widget): Connect m_terminal
interrupt_signal to oct_qobj interpreter_interrupt slot.
(terminal_dock_widget::terminal_interrupt): Delete slot. Action is
now performed in interpreter::interrupt method.
(terminal_dock_widget::interrupt_signal): Delete signal.
author | John W. Eaton <jwe@octave.org> |
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date | Tue, 12 Jan 2021 21:01:42 -0500 |
parents | c2f3a0832cf0 |
children | 7854d5752dd2 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2011-2020 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 "interpreter-qobject.h" |
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31 #include "octave-qobject.h" |
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32 #include "qt-application.h" |
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33 #include "qt-interpreter-events.h" |
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34 |
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35 #include "graphics-init.h" |
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36 #include "input.h" |
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37 #include "interpreter.h" |
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38 |
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39 namespace octave |
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40 { |
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41 interpreter_qobject::interpreter_qobject (base_qobject& oct_qobj) |
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42 : QObject (), m_octave_qobj (oct_qobj), m_interpreter (nullptr) |
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43 { } |
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44 |
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45 void interpreter_qobject::execute (void) |
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46 { |
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47 // The Octave application context owns the interpreter. |
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48 |
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49 qt_application& app_context = m_octave_qobj.app_context (); |
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50 |
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51 interpreter& interp = app_context.create_interpreter (); |
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52 |
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53 event_manager& evmgr = interp.get_event_manager (); |
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54 |
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55 evmgr.connect_link (m_octave_qobj.get_qt_interpreter_events ()); |
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56 evmgr.enable (); |
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57 |
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58 connect (this, SIGNAL (ready (void)), |
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59 &m_octave_qobj, SLOT (interpreter_ready (void))); |
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60 |
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61 int exit_status = 0; |
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62 |
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63 try |
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64 { |
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65 // Final initialization. |
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66 |
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67 interp.initialize (); |
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68 |
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69 if (app_context.start_gui_p ()) |
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70 { |
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71 input_system& input_sys = interp.get_input_system (); |
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72 |
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73 input_sys.PS1 (">> "); |
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74 input_sys.PS2 (""); |
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75 } |
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76 |
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77 if (interp.initialized ()) |
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78 { |
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79 // The interpreter should be completely ready at this point so let |
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80 // the GUI know. |
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81 |
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82 m_interpreter = &interp; |
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83 |
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84 emit ready (); |
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85 |
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86 graphics_init (interp, m_octave_qobj); |
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87 |
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88 // Start executing commands in the command window. |
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89 |
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90 exit_status = interp.execute (); |
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91 } |
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92 } |
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93 catch (const exit_exception& xe) |
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94 { |
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95 exit_status = xe.exit_status (); |
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96 } |
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97 |
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98 // Signal that the interpreter is done executing code in the main |
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99 // REPL, from script files, or command line eval arguments. By |
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100 // using a signal here, we give the GUI a chance to process any |
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101 // pending events, then signal that it is safe to shutdown the |
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102 // interpreter. Our notification here allows the GUI to insert the |
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103 // request to shutdown the interpreter in the event queue after any |
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104 // other pending signals. The application context owns the |
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105 // interpreter and will be responsible for deleting it later, when |
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106 // the application object destructor is executed. |
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107 |
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108 emit execution_finished (exit_status); |
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109 } |
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110 |
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111 // This function is expected to be executed when the GUI signals that |
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112 // it is finished processing events and ready for the interpreter to |
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113 // perform shutdown actions. |
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114 |
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115 void interpreter_qobject::shutdown (int exit_status) |
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116 { |
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117 if (m_interpreter) |
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118 m_interpreter->shutdown (); |
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119 |
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120 // Signal that the interpreter has executed shutdown actions. |
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121 |
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122 emit shutdown_finished (exit_status); |
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123 } |
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124 |
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125 void interpreter_qobject::interpreter_event (const fcn_callback& fcn) |
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126 { |
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127 if (! m_interpreter) |
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128 return; |
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129 |
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130 event_manager& evmgr = m_interpreter->get_event_manager (); |
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131 |
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132 evmgr.post_event (fcn); |
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133 } |
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134 |
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135 void interpreter_qobject::interpreter_event (const meth_callback& meth) |
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136 { |
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137 if (! m_interpreter) |
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138 return; |
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139 |
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140 event_manager& evmgr = m_interpreter->get_event_manager (); |
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141 |
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142 evmgr.post_event (meth); |
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143 } |
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144 |
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145 void interpreter_qobject::interrupt (void) |
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146 { |
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147 if (! m_interpreter) |
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148 return; |
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149 |
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150 m_interpreter->interrupt (); |
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151 } |
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152 |
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153 qt_interpreter_events * interpreter_qobject::qt_link (void) |
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154 { |
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155 return m_octave_qobj.qt_link (); |
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156 } |
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157 } |