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annotate libgui/qterminal/libqterminal/QTerminal.h @ 27288:0a2e5c808709

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allow editing and showing help on selected text in console (bug #41276) * QTerminal.cc (handleCustomContextMenuRequested): make new context menu action visible depending on selected text and on the occurrance of a word within the selection, set menu text and action data accordingly; (edit_selected): new slot for editing a selected function; (help_on_expression): new slot for showing help on selected expressions; (doc_on_expression): new slot for showing documentation on selected expr. * QTerminal.h: new signal show_doc_signal, new slots edit_selected, help_on_expression, doc_on_expression and new actions m_edit_selected_action, m_help_selected_action, and m_doc_selected_action; (ctor): add new actions on editing or showing help/doc on selected expressions, connect new signal show_doc_signal to the already existing slot in main_window
author Torsten Lilge <ttl-octave@mailbox.org>
date Wed, 24 Jul 2019 07:47:33 +0200
parents 7455523fdf01
children 315c35e6037c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 2012-2019 Michael Goffioul.
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4 Copyright (C) 2012-2019 Jacob Dawid.
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5
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6 This file is part of QTerminal.
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7
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8 This program is free software: you can redistribute it and/or modify
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License 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 this program. If not,
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20 see <https://www.gnu.org/licenses/>.
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21
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22 */
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24 #ifndef QTERMINAL_H
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25 #define QTERMINAL_H
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26
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27 #include <QSettings>
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28 #include <QKeySequence>
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29 #include <QWidget>
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30 #include <QStringList>
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31 #include <QColor>
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32 #include <QList>
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33 #include <QMenu>
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34 #include <QClipboard>
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35 #include <QApplication>
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36 #include <QAction>
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38 #include "resource-manager.h"
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39
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40 class QTerminal : public QWidget
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41 {
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42 Q_OBJECT
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43
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44 public:
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45
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46 static QTerminal *create (QWidget *xparent = nullptr);
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47
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48 static QList<QColor> default_colors (void);
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49
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50 static QStringList color_names (void);
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51
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52 virtual ~QTerminal (void) = default;
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53
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54 virtual void setTerminalFont (const QFont& font) = 0;
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55
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56 virtual void setSize (int h, int v) = 0;
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57
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58 virtual void sendText (const QString& text) = 0;
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59
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60 virtual QString selectedText () = 0;
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61
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62 virtual void has_extra_interrupt (bool extra) = 0;
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63
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64 virtual QList<QAction*> get_hotspot_actions (const QPoint&)
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65 { return QList<QAction*> (); }
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66
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67 enum CursorType
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68 {
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69 UnderlineCursor,
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70 BlockCursor,
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71 IBeamCursor
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72 };
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73
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74 virtual void setCursorType (CursorType type, bool blinking)
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75 {
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76 // Provide empty default impl in order to avoid conflicts with the
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77 // win impl.
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78
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79 Q_UNUSED (type);
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80 Q_UNUSED (blinking);
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81 }
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82
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83 virtual void setBackgroundColor (const QColor& color) = 0;
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84
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85 virtual void setForegroundColor (const QColor& color) = 0;
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86
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87 virtual void setSelectionColor (const QColor& color) = 0;
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88
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89 virtual void setCursorColor (bool useForegroundColor,
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90 const QColor& color) = 0;
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91
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92 virtual void setScrollBufferSize(int value=1000) = 0;
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94 signals:
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95
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96 void report_status_message (const QString&);
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97
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98 void interrupt_signal (void);
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99
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100 void edit_mfile_request (const QString&, int);
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102 void show_doc_signal (const QString&);
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103
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104 void execute_command_in_terminal_signal (const QString&);
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105
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106 public slots:
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107
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108 virtual void copyClipboard (void) = 0;
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109
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110 virtual void pasteClipboard (void) = 0;
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111
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112 virtual void selectAll (void) = 0;
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114 virtual void handleCustomContextMenuRequested (const QPoint& at);
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115
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116 void notice_settings (const QSettings *settings);
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117
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118 virtual void init_terminal_size (void) { }
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119
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120 void terminal_interrupt (void) { emit interrupt_signal (); }
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121
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122 void set_global_shortcuts (bool focus_out);
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123
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124 void run_selection (void);
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125
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126 void edit_file (void);
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127
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128 void edit_selected (void);
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129
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130 void help_on_expression (void);
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131
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132 void doc_on_expression (void);
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133
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134 virtual void handle_visibility_changed (bool) { };
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135
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136 protected:
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137
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138 QTerminal (QWidget *xparent = nullptr) : QWidget (xparent)
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139 {
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140 // context menu
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141 setContextMenuPolicy (Qt::CustomContextMenu);
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142
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143 _contextMenu = new QMenu (this);
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144
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145 _copy_action
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146 = _contextMenu->addAction (octave::resource_manager::icon ("edit-copy"),
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147 tr ("Copy"), this, SLOT (copyClipboard ()));
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148
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149 _paste_action
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150 = _contextMenu->addAction (octave::resource_manager::icon ("edit-paste"),
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151 tr ("Paste"), this, SLOT (pasteClipboard ()));
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152
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153 _contextMenu->addSeparator ();
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154
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155 _selectall_action
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156 = _contextMenu->addAction (tr ("Select All"), this, SLOT (selectAll ()));
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157
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158 _run_selection_action
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159 = _contextMenu->addAction (tr ("Run Selection"), this,
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160 SLOT (run_selection ()));
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161
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162 m_edit_selected_action
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163 = _contextMenu->addAction (tr ("Edit selection"), this,
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164 SLOT (edit_selected ()));
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165 m_help_selected_action
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166 = _contextMenu->addAction (tr ("Help on selection"), this,
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167 SLOT (help_on_expression ()));
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168 m_doc_selected_action
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169 = _contextMenu->addAction (tr ("Documentation on selection"), this,
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170 SLOT (doc_on_expression ()));
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171
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172 _edit_action = _contextMenu->addAction (tr (""), this, SLOT (edit_file ()));
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173
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174 _contextMenu->addSeparator ();
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175
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176 _contextMenu->addAction (tr ("Clear Window"), parent (),
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177 SLOT (handle_clear_command_window_request ()));
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178
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179 connect (this, SIGNAL (customContextMenuRequested (QPoint)),
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180 this, SLOT (handleCustomContextMenuRequested (QPoint)));
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181
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182 connect (this, SIGNAL (report_status_message (const QString&)),
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183 xparent, SLOT (report_status_message (const QString&)));
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184
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185 connect (this, SIGNAL (show_doc_signal (const QString&)),
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186 xparent, SLOT (handle_show_doc (const QString&)));
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187
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188 connect (this, SIGNAL (edit_mfile_request (const QString&, int)),
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189 xparent, SLOT (edit_mfile (const QString&, int)));
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190
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191 connect (this, SIGNAL (execute_command_in_terminal_signal (const QString&)),
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192 xparent, SLOT (execute_command_in_terminal (const QString&)));
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193
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194 connect (xparent, SIGNAL (settings_changed (const QSettings *)),
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195 this, SLOT (notice_settings (const QSettings *)));
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196
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197 connect (xparent, SIGNAL (init_terminal_size_signal ()),
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198 this, SLOT (init_terminal_size ()));
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199
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200 connect (xparent, SIGNAL (copyClipboard_signal ()),
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201 this, SLOT (copyClipboard ()));
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202
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203 connect (xparent, SIGNAL (pasteClipboard_signal ()),
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204 this, SLOT (pasteClipboard ()));
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205
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206 connect (xparent, SIGNAL (selectAll_signal ()),
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207 this, SLOT (selectAll ()));
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208
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209 // extra interrupt action
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210 _interrupt_action = new QAction (this);
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211 addAction (_interrupt_action);
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212
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213 _interrupt_action->setShortcut
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214 (QKeySequence (Qt::ControlModifier + Qt::Key_C));
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215
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216 connect (_interrupt_action, SIGNAL (triggered ()),
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217 this, SLOT (terminal_interrupt ()));
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218
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219 // dummy (nop) action catching Ctrl-D in terminal, no connection
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220 _nop_action = new QAction (this);
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221 addAction (_nop_action);
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222
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223 _nop_action->setShortcut (QKeySequence (Qt::ControlModifier + Qt::Key_D));
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224 }
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225
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226 private:
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227
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228 QMenu *_contextMenu;
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229 QAction * _copy_action;
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230 QAction * _paste_action;
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231 QAction * _selectall_action;
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232 QAction * _edit_action;
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233 QAction * _run_selection_action;
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234 QAction * m_edit_selected_action;
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235 QAction * m_help_selected_action;
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236 QAction * m_doc_selected_action;
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237
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238 QAction *_interrupt_action;
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239 QAction *_nop_action;
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240 };
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241
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242 #endif // QTERMINAL_H