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annotate libgui/src/release-notes.cc @ 31649:deb553ac2c54

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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Dec 2022 15:45:27 -0500
parents 431f80aba37a 29d734430e5f
children 5f11de0e7440
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2011-2022 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 #include <QApplication>
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31 #include <QFile>
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32 #include <QIcon>
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33 #include <QLayout>
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34 #include <QScreen>
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35 #include <QTextBrowser>
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36 #include <QTextStream>
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37 #include <QThread>
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38
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39 #include "release-notes.h"
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40 #include "gui-utils.h"
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41 #include "gui-preferences-dw.h"
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42 #include "gui-preferences-nr.h"
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43 #include "gui-settings.h"
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44 #include "news-reader.h"
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45
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46 #include "defaults.h"
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47
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48 OCTAVE_BEGIN_NAMESPACE(octave)
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49
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50 release_notes::release_notes (void)
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51 : QWidget (nullptr), m_browser (nullptr)
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52 {
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53
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54 gui_settings settings;
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55
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56 // The icon
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57 QString icon_set = settings.value (dw_icon_set).toString ();
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58
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59 if (icon_set != "NONE")
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60 m_release_notes_icon = dw_icon_set_names[icon_set]
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61 + "ReleaseWidget.png";
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62 else
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63 m_release_notes_icon = dw_icon_set_names[icon_set];
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64
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65 std::string news_file = config::oct_etc_dir () + "/NEWS";
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66
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67 QString news;
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68
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69 QFile *file = new QFile (QString::fromStdString (news_file));
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70 if (file->open (QFile::ReadOnly))
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71 {
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72 QTextStream *stream = new QTextStream (file);
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73 news = stream->readAll ();
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74 if (! news.isEmpty ())
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75 {
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76 // Convert '<', '>' which would be interpreted as HTML
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77 news.replace ("<", "&lt;");
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78 news.replace (">", "&gt;");
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79 // Add HTML tags for pre-formatted text
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80 news.prepend ("<pre>");
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81 news.append ("</pre>");
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82 }
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83 else
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84 news = (tr ("The release notes file '%1' is empty.")
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85 . arg (QString::fromStdString (news_file)));
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86 }
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87 else
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88 news = (tr ("The release notes file '%1' cannot be read.")
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89 . arg (QString::fromStdString (news_file)));
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90
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91 m_browser = new QTextBrowser (this);
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92 m_browser->setText (news);
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93
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94 QVBoxLayout *vlayout = new QVBoxLayout;
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95 vlayout->addWidget (m_browser);
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96
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97 setLayout (vlayout);
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98 setWindowTitle (tr ("Octave Release Notes"));
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99
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100 m_browser->document ()->adjustSize ();
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101
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102 int win_x, win_y;
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103 get_screen_geometry (win_x, win_y);
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104
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105 resize (win_x*2/5, win_y*2/3);
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106 move (20, 20); // move to the top left corner
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107 }
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108
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109 void release_notes::display (void)
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110 {
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111 if (! isVisible ())
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112 show ();
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113 else if (isMinimized ())
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114 showNormal ();
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115
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116 setWindowIcon (QIcon (m_release_notes_icon));
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117
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118 raise ();
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119 activateWindow ();
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120 }
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121
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122 OCTAVE_END_NAMESPACE(octave)