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annotate gui/src/MainWindow.h @ 13528:8b116446a904

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Fixed race condition.
author Jacob Dawid <jacob.dawid@googlemail.com>
date Wed, 20 Jul 2011 23:32:19 +0200
parents 09d9cb7c3014
children 8c7390b78911
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1 /* OctaveGUI - A graphical user interface for Octave
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2 * Copyright (C) 2011 Jacob Dawid
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3 * jacob.dawid@googlemail.com
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4 *
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5 * This program is free software: you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation, either version 3 of the License, or
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18
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19 #ifndef MAINWINDOW_H
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20 #define MAINWINDOW_H
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21
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22 #include <QtGui/QMainWindow>
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23 #include <QThread>
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24 #include <QTabWidget>
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25 #include <QMdiArea>
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26 #include <QStatusBar>
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27 #include <QToolBar>
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28 #include <QQueue>
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29 #include "OctaveTerminal.h"
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30 #include "OctaveLink.h"
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31 #include "VariablesDockWidget.h"
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32 #include "HistoryDockWidget.h"
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33 #include "FilesDockWidget.h"
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34 #include "BrowserWidget.h"
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35 #include "IRCWidget.h"
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36
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37 class OctaveMainThread;
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38 class OctaveCallbackThread;
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39
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40 /**
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41 * \class MainWindow
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42 *
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43 * Represents the main window.
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44 */
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45 class MainWindow:public QMainWindow
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46 {
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47 Q_OBJECT public:
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48 MainWindow (QWidget * parent = 0);
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49 ~MainWindow ();
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50
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51 bool isRunning ()
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52 {
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53 return m_isRunning;
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54 }
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55 OctaveTerminal *octaveTerminal ()
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56 {
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57 return m_octaveTerminal;
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58 }
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59 VariablesDockWidget *variablesDockWidget ()
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60 {
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61 return m_variablesDockWidget;
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62 }
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63 HistoryDockWidget *historyDockWidget ()
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64 {
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65 return m_historyDockWidget;
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66 }
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67 FilesDockWidget *filesDockWidget ()
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68 {
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69 return m_filesDockWidget;
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70 }
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71
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72 public slots:void handleOpenFileRequest (QString fileName);
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73 void reportStatusMessage (QString statusMessage);
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74 void openWebPage (QString url);
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75 void handleSaveWorkspaceRequest ();
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76 void handleLoadWorkspaceRequest ();
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77 void handleClearWorkspaceRequest ();
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78 void handleCommandDoubleClicked (QString command);
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79 void alignMdiWindows ();
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80 void openBugTrackerPage ();
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81 void processSettingsDialogRequest ();
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82
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83 protected:
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84 void closeEvent (QCloseEvent * closeEvent);
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85 void readSettings ();
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86 void writeSettings ();
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87
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88 private:
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89 void construct ();
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90 void establishOctaveLink ();
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91 QMdiArea *m_centralMdiArea;
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92
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93 // Mdi sub windows.
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94 OctaveTerminal *m_octaveTerminal;
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95 BrowserWidget *m_documentationWidget;
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96 IRCWidget *m_ircWidget;
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97
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98 QMdiSubWindow *m_octaveTerminalSubWindow;
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99 QMdiSubWindow *m_documentationWidgetSubWindow;
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100 QMdiSubWindow *m_ircWidgetSubWindow;
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101
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102 // Dock widgets.
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103 VariablesDockWidget *m_variablesDockWidget;
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104 HistoryDockWidget *m_historyDockWidget;
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105 FilesDockWidget *m_filesDockWidget;
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106
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107 // Toolbars.
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108 QStatusBar *m_statusBar;
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109
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110 QString m_settingsFile;
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111
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112 // Threads for running octave and managing the data interaction.
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113 OctaveMainThread *m_octaveMainThread;
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114 OctaveCallbackThread *m_octaveCallbackThread;
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115 bool m_isRunning;
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116 };
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117
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118 class OctaveMainThread:public QThread
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119 {
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120 Q_OBJECT
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121 public:
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122 OctaveMainThread (QObject * parent):QThread (parent)
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123 {
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124 }
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125
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126 signals:
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127 void ready();
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128
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129 protected:
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130 void run ()
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131 {
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132 int argc = 3;
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133 const char *argv[] = { "octave", "--interactive", "--line-editing" };
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134 octave_main (argc, (char **) argv, 1);
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135 emit ready();
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136 main_loop ();
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137 clean_up_and_exit (0);
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138 }
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139 };
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140
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141 class OctaveCallbackThread:public QThread
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142 {
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143 Q_OBJECT public:
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144 OctaveCallbackThread (QObject * parent,
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145 MainWindow * mainWindow):QThread (parent),
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146 m_mainWindow (mainWindow)
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147 {
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148 }
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149
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150 protected:
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151 void run ()
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152 {
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153 while (m_mainWindow->isRunning ())
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154 {
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155 OctaveLink::instance ()->fetchSymbolTable ();
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156
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157 // Get a full variable list.
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158 QList < SymbolRecord > symbolTable =
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159 OctaveLink::instance ()->copyCurrentSymbolTable ();
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160 if (symbolTable.size ())
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161 {
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162 m_mainWindow->variablesDockWidget ()->
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163 setVariablesList (symbolTable);
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164 }
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165
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166 OctaveLink::instance ()->updateHistoryModel ();
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167 usleep (500000);
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168 }
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169 }
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170 private:
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171 MainWindow * m_mainWindow;
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172 };
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173
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174 #endif // MAINWINDOW_H