File indexing completed on 2024-03-24 15:48:00
0001 /************************************************************************ 0002 * * 0003 * This file is part of Kooka, a scanning/OCR application using * 0004 * Qt <http://www.qt.io> and KDE Frameworks <http://www.kde.org>. * 0005 * * 0006 * Copyright (C) 2016 Jonathan Marten <jjm@keelhaul.me.uk> * 0007 * * 0008 * Kooka is free software; you can redistribute it and/or modify it * 0009 * under the terms of the GNU Library General Public License as * 0010 * published by the Free Software Foundation and appearing in the * 0011 * file COPYING included in the packaging of this file; either * 0012 * version 2 of the License, or (at your option) any later version. * 0013 * * 0014 * As a special exception, permission is given to link this program * 0015 * with any version of the KADMOS OCR/ICR engine (a product of * 0016 * reRecognition GmbH, Kreuzlingen), and distribute the resulting * 0017 * executable without including the source code for KADMOS in the * 0018 * source distribution. * 0019 * * 0020 * This program is distributed in the hope that it will be useful, * 0021 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 0022 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 0023 * GNU General Public License for more details. * 0024 * * 0025 * You should have received a copy of the GNU General Public * 0026 * License along with this program; see the file COPYING. If * 0027 * not, see <http://www.gnu.org/licenses/>. * 0028 * * 0029 ************************************************************************/ 0030 0031 #include "dialogstatewatcher.h" 0032 0033 #include <qdialog.h> 0034 #include <qevent.h> 0035 #include <qapplication.h> 0036 #include <qabstractbutton.h> 0037 0038 #include "dialogstatesaver.h" 0039 #include "libdialogutil_logging.h" 0040 0041 0042 DialogStateWatcher::DialogStateWatcher(QDialog *pnt) 0043 : QObject(pnt) 0044 { 0045 Q_ASSERT(pnt!=nullptr); 0046 mParent = pnt; 0047 mParent->installEventFilter(this); 0048 connect(mParent, &QDialog::accepted, this, &DialogStateWatcher::saveConfigInternal); 0049 0050 mStateSaver = new DialogStateSaver(mParent); // use our own as default 0051 mHaveOwnSaver = true; // note that we created it 0052 } 0053 0054 0055 void DialogStateWatcher::setSaveOnButton(QAbstractButton *but) 0056 { 0057 qCDebug(LIBDIALOGUTIL_LOG) << "button" << but->text(); 0058 connect(but, &QAbstractButton::clicked, this, &DialogStateWatcher::saveConfigInternal); 0059 } 0060 0061 0062 bool DialogStateWatcher::eventFilter(QObject *obj, QEvent *ev) 0063 { 0064 if (obj==mParent && ev->type()==QEvent::Show) // only interested in show event 0065 { 0066 restoreConfigInternal(); // restore size and config 0067 } 0068 return (false); // always pass the event on 0069 } 0070 0071 0072 void DialogStateWatcher::restoreConfigInternal() 0073 { 0074 if (mStateSaver==nullptr) return; // no saver set or provided 0075 mStateSaver->restoreConfig(); 0076 } 0077 0078 0079 void DialogStateWatcher::saveConfigInternal() const 0080 { 0081 if (mStateSaver==nullptr) return; // no saver set or provided 0082 mStateSaver->saveConfig(); 0083 } 0084 0085 0086 void DialogStateWatcher::setStateSaver(DialogStateSaver *saver) 0087 { 0088 // We only delete the existing saver if we created it. 0089 if (mStateSaver!=nullptr && mHaveOwnSaver) delete mStateSaver; 0090 0091 mStateSaver = saver; // set the new one 0092 mHaveOwnSaver = false; // note that it's not ours 0093 }