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annotate libgui/graphics/Logger.cc @ 30398:d4d83344d653 stable

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maint: style check C++ files in src/ and libgui/ ahead of 7.1 release. * ButtonGroup.cc, Canvas.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc, EditControl.cc, Figure.cc, Figure.h, FigureWindow.cc, GenericEventNotify.h, ListBoxControl.cc, ListBoxControl.h, Logger.cc, Menu.cc, Object.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, RadioButtonControl.cc, SliderControl.cc, Table.cc, Table.h, TextControl.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, annotation-dialog.cc, qt-graphics-toolkit.cc, documentation-bookmarks.cc, documentation-bookmarks.h, documentation-dock-widget.h, documentation.cc, documentation.h, dw-main-window.h, files-dock-widget.cc, files-dock-widget.h, find-files-dialog.cc, find-files-model.cc, gui-preferences-dw.h, gui-preferences-ed.h, gui-preferences-global.h, gui-settings.h, interpreter-qobject.cc, led-indicator.cc, file-editor-interface.h, file-editor-tab.cc, file-editor-tab.h, file-editor.cc, file-editor.h, find-dialog.cc, find-dialog.h, marker.cc, octave-qscintilla.cc, octave-qscintilla.h, main-window.cc, main-window.h, octave-dock-widget.cc, octave-dock-widget.h, octave-qobject.cc, octave-qobject.h, octave-qtutils.h, qt-interpreter-events.cc, release-notes.cc, resource-manager.cc, set-path-dialog.cc, settings-dialog.cc, settings-dialog.h, shortcut-manager.cc, shortcut-manager.h, tab-bar.cc, tab-bar.h, variable-editor-model.cc, variable-editor-model.h, variable-editor.cc, variable-editor.h, workspace-model.cc, workspace-view.cc, mkoctfile.in.cc, octave-config.in.cc: Style check C++ files in src/ and libgui/ ahead of 7.1 release.
author Rik <rik@octave.org>
date Mon, 29 Nov 2021 15:58:51 -0800
parents 6ea4a84df9c7
children 796f54d4ddbf
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2011-2021 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 <cstdio>
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31
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32 #include <QMutex>
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33 #include <QMutexLocker>
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34 #include <QProcessEnvironment>
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35
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36 #include "Logger.h"
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37
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38 namespace octave
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39 {
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40
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41 Logger *Logger::s_instance = nullptr;
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42 QMutex *Logger::s_mutex = nullptr;
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43
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44 Logger::Logger (void)
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45 : m_debugEnabled (false)
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46 {
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47 QProcessEnvironment pe (QProcessEnvironment::systemEnvironment ());
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48
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49 if (pe.value ("QTHANDLES_DEBUG", "0") != "0")
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50 m_debugEnabled = true;
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51 }
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52
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53 Logger::~Logger (void)
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54 { }
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55
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56 Logger *
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57 Logger::instance (void)
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58 {
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59 if (! s_instance)
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60 {
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61 s_instance = new Logger ();
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62 s_mutex = new QMutex ();
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63 }
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64
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65 return s_instance;
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66 }
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67
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68 #define STATIC_LOGGER(fun) \
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69 void Logger::fun (const char *fmt, ...) \
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70 { \
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71 QMutexLocker lock (s_mutex); \
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72 va_list vl; \
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73 va_start (vl, fmt); \
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74 instance ()->fun ## V (fmt, vl); \
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75 va_end (vl); \
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76 }
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78 STATIC_LOGGER (debug)
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80 void
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81 Logger::debugV (const char *fmt, va_list arg)
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82 {
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83 if (m_debugEnabled)
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84 {
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85 vfprintf (stderr, fmt, arg);
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86 fprintf (stderr, "\n");
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87 }
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88 }
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89
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90 }