Mercurial > jwe > octave
view libgui/src/release-notes.cc @ 29841:56465c0739fa
allow release notes window to be opened from command line
* main-window.h, main-window.cc (main_window::m_release_notes_windoow,
main_window::m_release_notes_icon): Delete member variables and all uses.
(main_window::display_release_notes): Delete.
(main_window::show_release_notes_signal): New signal.
(main_window::construct_news_menu): Use lambda function to emit
show_release_notes_signal.
* release-notes.h, release-notes.cc: New files.
* libgui/src/module.mk: Update.
* octave-qobject.h, octave-qobject.cc (base_qobject::base_qobject):
Connect main_window show_release_notes_signal to base_qobject
show_release_notes slot. If gui_app is true, connect main_window
show_release_notes_signal to base_qobject show_release_notes slot.
(base_qobject::start_gui): Also connect main_window
show_release_notes_signal to base_qobject show_release_notes slot
here.
(base_qobject::m_release_notes): New member variable.
(base_qobject::release_notes_widget,
base_qobject::show_release_notes): New functions.
* qt-interpreter-events.h, qt-interpreter-events.cc
(qt_interpreter_events::show_release_notes): New function.
(qt_interpreter_events::show_release_notes_signal): New signal.
* event-manager.h, event-manager.cc
(event_manager::show_release_notes): New function.
(interpreter_events::show_release_notes): New virtual function.
(F__event_manager_show_release_notes__): New function.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Sat, 26 Jun 2021 07:59:17 -0400 |
parents | |
children | d4d83344d653 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2011-2021 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <QDesktopWidget> #include <QFile> #include <QIcon> #include <QLayout> #include <QTextBrowser> #include <QTextStream> #include <QThread> #include "release-notes.h" #include "gui-preferences-nr.h" #include "news-reader.h" #include "octave-qobject.h" #include "defaults.h" namespace octave { release_notes::release_notes (void) : QWidget (nullptr), m_browser (nullptr), m_release_notes_icon (":/actions/icons/logo.png") { #if 0 // The following code was in main-window.cc. How should that be // handled here? if (dw_icon_set_names[icon_set_found].name != "NONE") m_release_notes_icon = dw_icon_set_names[icon_set_found].path + "ReleaseWidget.png"; else m_release_notes_icon = ":/actions/icons/logo.png"; #endif std::string news_file = config::oct_etc_dir () + "/NEWS"; QString news; QFile *file = new QFile (QString::fromStdString (news_file)); if (file->open (QFile::ReadOnly)) { QTextStream *stream = new QTextStream (file); news = stream->readAll (); if (! news.isEmpty ()) { // Convert '<', '>' which would be interpreted as HTML news.replace ("<", "<"); news.replace (">", ">"); // Add HTML tags for pre-formatted text news.prepend ("<pre>"); news.append ("</pre>"); } else news = (tr ("The release notes file '%1' is empty.") . arg (QString::fromStdString (news_file))); } else news = (tr ("The release notes file '%1' cannot be read.") . arg (QString::fromStdString (news_file))); m_browser = new QTextBrowser (this); m_browser->setText (news); QVBoxLayout *vlayout = new QVBoxLayout; vlayout->addWidget (m_browser); setLayout (vlayout); setWindowTitle (tr ("Octave Release Notes")); m_browser->document ()->adjustSize (); int win_x, win_y; get_screen_geometry (win_x, win_y); resize (win_x*2/5, win_y*2/3); move (20, 20); // move to the top left corner } void release_notes::display (void) { if (! isVisible ()) show (); else if (isMinimized ()) showNormal (); setWindowIcon (QIcon (m_release_notes_icon)); raise (); activateWindow (); } // FIXME: This function is duplicated in main_window.cc. Maybe it // should be a utility function? void release_notes::get_screen_geometry (int& width, int& height) { QRect screen_geometry = QApplication::desktop ()->availableGeometry (this); width = screen_geometry.width (); height = screen_geometry.height (); } }