kdefrontend/worksheet/DynamicPresenterWidget_mac.mm

0001 /***************************************************************************
0002 File                 : DynamicPresenterWidget_mac.mm
0003 Project              : LabPlot
0004 Description          : Reimplementation of QWidget::closeEvent() to workaround QTBUG-46701
0005 --------------------------------------------------------------------
0006 Copyright            : (C) 2019 by Alexander Semke (alexander.semke@web.de)
0007 ***************************************************************************/
0008
0009 /***************************************************************************
0010 *                                                                         *
0011 *  This program is free software; you can redistribute it and/or modify   *
0012 *  it under the terms of the GNU General Public License as published by   *
0013 *  the Free Software Foundation; either version 2 of the License, or      *
0014 *  (at your option) any later version.                                    *
0015 *                                                                         *
0016 *  This program is distributed in the hope that it will be useful,        *
0017 *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
0018 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
0019 *  GNU General Public License for more details.                           *
0020 *                                                                         *
0021 *   You should have received a copy of the GNU General Public License     *
0022 *   along with this program; if not, write to the Free Software           *
0023 *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
0024 *   Boston, MA  02110-1301  USA                                           *
0025 *                                                                         *
0026 ***************************************************************************/
0027 #include "DynamicPresenterWidget.h"
0028 #include <AppKit/AppKit.h>
0029
0030 //After closing a widget/window where showFullScreen() was called before, we are left on macOS
0031 //with a black screen (https://bugreports.qt.io/browse/QTBUG-46701).
0032 //Explicitly close the native window to workaround this problem.
0033
0034 void DynamicPresenterWidget::closeEvent(QCloseEvent* event) {
0035         QWidget::closeEvent(event);
0036
0037         NSView* view = reinterpret_cast<NSView*>(winId());
0038         if (view == nil)
0039                 return;
0040
0041         NSWindow* window = view.window;
0042         if (window == nil)
0043                 return;
0044
0045         [window close];
0046 }