Mercurial > octave
annotate libgui/src/command-widget.cc @ 31222:1a0756f7c90a
disable experimental terminal widget when building without qscintilla
* command-widget.cc: inlcude into #if defined (HAVE_QSCINTILLA)
* main-window.cc: include command-widget.h only if HAVE_QSCINTILLA
* module.mk: only build moc-command-widget.cc if HAVE_QSCINTILLA
* octave-qobject.cc: include command-widget.h only if HAVE_QSCINTILLA,
(base_qobject::terminal_widget): use conditional compilation where
referring to new terminal widget
* terminal-dock-widget.cc: include command-widget.h only if HAVE_QSCINTILLA,
(terminal_dock_widget, init_command_prompt): use conditional compilation
where referring to new terminal widget
* terminal-dock-widget.h: use conditional compilation where referring to
new terminal widget Thu Sep 01 02:34:37 2022 +0200
* octave.cc (cmdline_options): only return true on experimental terminal
widget option if built with scintilla
author | Torsten Lilge <ttl-octave@mailbox.org> |
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date | Sat, 03 Sep 2022 00:18:49 +0200 |
parents | d5696a4efa84 |
children | ed7b17c7ddf3 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2021-2022 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 (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 #if defined (HAVE_QSCINTILLA) |
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31 |
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32 #include <QGroupBox> |
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33 #include <QHBoxLayout> |
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34 #include <QLabel> |
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35 #include <QLineEdit> |
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36 #include <QPushButton> |
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37 #include <QTextEdit> |
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38 #include <QTextBlock> |
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39 #include <QVBoxLayout> |
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40 |
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41 #include "command-widget.h" |
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42 |
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43 #include "cmd-edit.h" |
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44 #include "event-manager.h" |
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45 #include "gui-preferences-cs.h" |
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46 #include "gui-preferences-global.h" |
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47 #include "gui-utils.h" |
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48 #include "input.h" |
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49 #include "interpreter.h" |
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50 |
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51 namespace octave |
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52 { |
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53 command_widget::command_widget (base_qobject& oct_qobj, QWidget *p) |
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54 : QWidget (p), m_incomplete_parse (false), |
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55 m_prompt (QString ()), |
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56 m_console (new console (this, oct_qobj)) |
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57 { |
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58 QPushButton *pause_button = new QPushButton (tr("Pause"), this); |
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59 QPushButton *stop_button = new QPushButton (tr("Stop"), this); |
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60 QPushButton *resume_button = new QPushButton (tr("Continue"), this); |
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61 |
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62 QGroupBox *input_group_box = new QGroupBox (); |
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63 QHBoxLayout *input_layout = new QHBoxLayout; |
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64 input_layout->addWidget (pause_button); |
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65 input_layout->addWidget (stop_button); |
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66 input_layout->addWidget (resume_button); |
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67 input_group_box->setLayout (input_layout); |
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68 |
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69 QVBoxLayout *main_layout = new QVBoxLayout (); |
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70 main_layout->addWidget (m_console); |
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71 main_layout->addWidget (input_group_box); |
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72 |
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73 setLayout (main_layout); |
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74 |
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75 setFocusProxy (m_console); |
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76 |
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77 connect (pause_button, &QPushButton::clicked, |
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78 this, &command_widget::interpreter_pause); |
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79 |
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80 connect (resume_button, &QPushButton::clicked, |
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81 this, &command_widget::interpreter_resume); |
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82 |
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83 connect (stop_button, &QPushButton::clicked, |
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84 this, &command_widget::interpreter_stop); |
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85 |
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86 connect (this, &command_widget::new_command_line_signal, |
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87 m_console, &console::new_command_line); |
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88 |
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89 insert_interpreter_output ("\n\n Welcome to Octave\n\n"); |
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90 |
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91 } |
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92 |
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93 void command_widget::init_command_prompt () |
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94 { |
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95 emit interpreter_event |
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96 ([=] (interpreter& interp) |
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97 { |
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98 // INTERPRETER THREAD |
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99 |
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100 event_manager& evmgr = interp.get_event_manager (); |
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101 input_system& input_sys = interp.get_input_system (); |
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102 std::string prompt = input_sys.PS1 (); |
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103 evmgr.update_prompt (command_editor::decode_prompt_string (prompt)); |
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104 |
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105 emit new_command_line_signal (); |
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106 }); |
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107 } |
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108 |
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109 void command_widget::update_prompt (const QString& prompt) |
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110 { |
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111 m_prompt = prompt; |
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112 } |
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113 |
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114 QString command_widget::prompt () |
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115 { |
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116 return m_prompt; |
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117 } |
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118 |
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119 void command_widget::insert_interpreter_output (const QString& msg) |
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120 { |
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121 m_console->append (msg); |
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122 } |
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123 |
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124 void command_widget::process_input_line (const QString& input_line) |
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125 { |
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126 emit interpreter_event |
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127 ([=] (interpreter& interp) |
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128 { |
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129 // INTERPRETER THREAD |
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130 |
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131 interp.parse_and_execute (input_line.toStdString (), |
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132 m_incomplete_parse); |
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133 |
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134 event_manager& evmgr = interp.get_event_manager (); |
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135 input_system& input_sys = interp.get_input_system (); |
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136 |
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137 std::string prompt |
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138 = m_incomplete_parse ? input_sys.PS2 () : input_sys.PS1 (); |
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139 |
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140 evmgr.update_prompt (command_editor::decode_prompt_string (prompt)); |
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141 |
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142 emit new_command_line_signal (); |
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143 }); |
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144 |
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145 } |
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146 |
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147 void command_widget::notice_settings (const gui_settings *settings) |
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148 { |
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149 // Set terminal font: |
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150 QFont term_font = QFont (); |
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151 term_font.setStyleHint (QFont::TypeWriter); |
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152 QString default_font = settings->value (global_mono_font).toString (); |
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153 term_font.setFamily |
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154 (settings->value (cs_font.key, default_font).toString ()); |
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155 term_font.setPointSize |
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156 (settings->value (cs_font_size).toInt ()); |
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157 |
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158 m_console->setFont (term_font); |
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159 |
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160 // Colors |
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161 int mode = settings->value (cs_color_mode).toInt (); |
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162 QColor fgc = settings->color_value (cs_colors[0], mode); |
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163 QColor bgc = settings->color_value (cs_colors[1], mode); |
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164 |
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165 m_console->setStyleSheet (QString ("color: %1; background-color:%2;") |
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166 .arg (fgc.name ()).arg (bgc.name ())); |
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167 } |
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168 |
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169 |
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170 // The console itself using QScintilla. |
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171 // This implementation is partly based on the basic concept of |
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172 // "qpconsole" as proposed by user "DerManu" in the Qt-forum thread |
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173 // https://forum.qt.io/topic/28765/command-terminal-using-qtextedit |
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174 |
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175 console::console (command_widget *p, base_qobject&) |
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176 : QsciScintilla (p), |
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177 m_command_position (-1), |
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178 m_cursor_position (0), |
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179 m_text_changed (false), |
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180 m_command_widget (p), |
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181 m_last_key_string (QString ()) |
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182 { |
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183 setMargins (0); |
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184 setWrapMode (QsciScintilla::WrapWord); |
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185 |
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186 connect (this, SIGNAL (cursorPositionChanged (int, int)), |
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187 this, SLOT (cursor_position_changed (int, int))); |
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188 |
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189 connect (this, SIGNAL (textChanged (void)), |
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190 this, SLOT (text_changed (void))); |
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191 |
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192 connect (this, SIGNAL (modificationAttempted (void)), |
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193 this, SLOT (move_cursor_to_end (void))); |
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194 } |
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195 |
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196 // Prepare a new command line with the current prompt |
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197 void console::new_command_line (const QString& command) |
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198 { |
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199 if (! text (lines () -1).isEmpty ()) |
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200 append ("\n"); |
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201 |
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202 append_string (m_command_widget->prompt ()); |
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203 |
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204 int line, index; |
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205 getCursorPosition (&line,&index); |
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206 m_command_position = positionFromLineIndex (line, index); |
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207 |
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208 append_string (command); |
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209 } |
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210 |
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211 // Accept the current command line (or block) |
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212 void console::accept_command_line () |
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213 { |
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214 QString input_line = text (lines () - 1); |
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215 |
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216 if (input_line.startsWith (m_command_widget->prompt ())) |
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217 input_line.remove(0, m_command_widget->prompt ().length ()); |
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218 |
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219 input_line = input_line.trimmed (); |
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220 |
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221 append_string ("\n"); |
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222 |
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223 if (input_line.isEmpty ()) |
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224 new_command_line (); |
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225 else |
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226 m_command_widget->process_input_line (input_line); |
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227 } |
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228 |
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229 // Execute a command |
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230 void console::execute_command (const QString& command) |
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231 { |
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232 if (command.trimmed ().isEmpty ()) |
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233 return; |
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234 |
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235 new_command_line (command); |
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236 accept_command_line (); |
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237 } |
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238 |
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239 // Append a string and update the curdor püosition |
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240 void console::append_string (const QString& string) |
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241 { |
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242 setReadOnly (false); |
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243 append (string); |
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244 |
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245 int line, index; |
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246 lineIndexFromPosition (text ().length (), &line, &index); |
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247 |
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248 setCursorPosition (line, index); |
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249 } |
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250 |
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251 // Cursor position changed: Are we in the command line or not? |
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252 void console::cursor_position_changed (int line, int col) |
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253 { |
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254 m_cursor_position = positionFromLineIndex (line, col); |
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255 if (m_cursor_position < m_command_position) |
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256 { |
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257 // We are in the read only area |
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258 if (m_text_changed && (m_cursor_position == m_command_position - 1)) |
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259 { |
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260 setReadOnly (false); |
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261 insert (m_command_widget->prompt ().right (1)); // And here we have tried to remove the prompt by Backspace |
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262 setCursorPosition (line+1, col); |
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263 } |
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264 setReadOnly (true); |
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265 } |
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266 else |
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267 setReadOnly (false); // Writable area |
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268 |
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269 m_text_changed = false; |
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270 } |
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271 |
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272 // User attempted to type on read only mode: move cursor at end and allow |
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273 // editing |
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274 void console::move_cursor_to_end (void) |
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275 { |
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276 if ((! m_last_key_string.isEmpty ()) && (m_last_key_string.at (0).isPrint ())) |
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277 { |
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278 append_string (m_last_key_string); |
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279 setReadOnly (true); // Avoid that changing read only text is done afterwards |
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280 } |
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281 } |
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282 |
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283 // Text has changed: is cursor still in "writable" area? |
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284 // This signal seems to be emitted before cursor position changed. |
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285 void console::text_changed (void) |
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286 { |
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287 m_text_changed = true; |
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288 } |
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289 |
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290 // Re-implement key event |
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291 void console::keyPressEvent (QKeyEvent *e) |
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292 { |
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293 if (e->key () == Qt::Key_Return) |
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294 // On "return", accept the current command line |
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295 accept_command_line (); |
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296 else |
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297 { |
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298 // Otherwise, store text process the expected event |
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299 m_last_key_string = e->text (); |
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300 QsciScintilla::keyPressEvent(e); |
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301 } |
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302 } |
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303 |
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304 } |
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305 |
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306 #endif |