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annotate libgui/src/octave-gui.cc @ 17744:d63878346099

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maint: Update copyright notices for release.
author John W. Eaton <jwe@octave.org>
date Wed, 23 Oct 2013 22:09:27 -0400
parents d3bb7f1e3971
children 5f2fb93bdc8b
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1 /*
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2
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3 Copyright (C) 2011-2013 Jacob Dawid
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include <QtGui/QApplication>
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28 #include <QTextCodec>
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29 #include <QTranslator>
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30
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31 #include <iostream>
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32
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33 #include <unistd.h>
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34 #include <fcntl.h>
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35
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36 #if defined (HAVE_SYS_IOCTL_H)
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37 #include <sys/ioctl.h>
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38 #endif
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39
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40 #include "lo-utils.h"
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41 #include "oct-env.h"
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42 #include "oct-syscalls.h"
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43 #include "syswait.h"
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44
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45 #include "sighandlers.h"
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46
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47 #include "welcome-wizard.h"
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48 #include "resource-manager.h"
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49 #include "main-window.h"
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50 #include "octave-gui.h"
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51
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52
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53 // custom message handler for filtering some messages from qt
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54 void message_handler (QtMsgType type, const char *msg)
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55 {
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56 switch (type) {
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57 case QtDebugMsg:
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58 if (strcmp(msg,"QFileSystemWatcher: skipping native engine") > 0)
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59 break;
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60 fprintf(stderr, "Debug: %s\n", msg);
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61 break;
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62 case QtWarningMsg:
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63 fprintf(stderr, "Warning: %s\n", msg);
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64 break;
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65 case QtCriticalMsg:
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66 fprintf(stderr, "Critical: %s\n", msg);
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67 break;
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68 case QtFatalMsg:
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69 fprintf(stderr, "Fatal: %s\n", msg);
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70 abort();
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71 }
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72 }
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73
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74
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75 // Dissociate from the controlling terminal, if any.
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76
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77 static void
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78 dissociate_terminal (void)
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79 {
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80 #if ! (defined (__WIN32__) || defined (__APPLE__)) || defined (__CYGWIN__)
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81
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82 pid_t pid = fork ();
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83
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84 if (pid < 0)
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85 {
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86 std::cerr << "fork failed!" << std::endl;;
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87 exit (1);
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88 }
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89 else if (pid == 0)
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90 {
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91 // Child.
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92
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93 if (setsid () < 0)
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94 {
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95 std::cerr << "setsid error" << std::endl;
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96 exit (1);
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97 }
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98 }
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99 else
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100 {
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101 // Parent
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102
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103 install_gui_driver_signal_handlers (pid);
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104
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105 int status;
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106
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107 waitpid (pid, &status, 0);
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108
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109 exit (octave_wait::ifexited (status)
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110 ? octave_wait::exitstatus (status) : 127);
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111 }
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112
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113 #endif
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114 }
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115
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116 int
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117 octave_start_gui (int argc, char *argv[], bool fork)
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118 {
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119 if (fork)
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120 dissociate_terminal ();
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121
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122 qInstallMsgHandler(message_handler);
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123
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124 QApplication application (argc, argv);
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125
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126 // Set the codec for all strings
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127 QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
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128
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129 // install translators for the gui and qt text
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130 QTranslator gui_tr, qt_tr, qsci_tr;
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131 resource_manager::config_translators (&qt_tr,&qsci_tr,&gui_tr);
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132 application.installTranslator (&qt_tr);
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133 application.installTranslator (&qsci_tr);
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134 application.installTranslator (&gui_tr);
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135
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136 while (true)
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137 {
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138 if (resource_manager::is_first_run ())
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139 {
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140 welcome_wizard welcomeWizard;
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141 welcomeWizard.exec ();
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142 resource_manager::reload_settings ();
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143 }
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144 else
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145 {
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146 // update network-settings
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147 resource_manager::update_network_settings ();
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148
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149 #if ! defined (__WIN32__) || defined (__CYGWIN__)
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150 // If we were started from a launcher, TERM might not be
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151 // defined, but we provide a terminal with xterm
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152 // capabilities.
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153
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154 std::string term = octave_env::getenv ("TERM");
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155
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156 if (term.empty ())
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157 octave_env::putenv ("TERM", "xterm");
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158 #else
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159 std::string term = octave_env::getenv ("TERM");
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160
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161 if (term.empty ())
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162 octave_env::putenv ("TERM", "cygwin");
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163 #endif
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164
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165 // create main window, read settings, and show window
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166 main_window w;
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167 w.read_settings (); // get widget settings and window layout
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168 w.focus_command_window ();
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169 w.connect_visibility_changed (); // connect signals for changes in
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170 // visibility not before w is shown
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171 return application.exec ();
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172 }
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173 }
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174 }