/*
Copyright (C) 2012, University of Cambridge, Department of Psychiatry.
Created by Rudolf Cardinal (rnc1001@cam.ac.uk).
This file is part of CamCOPS.
CamCOPS 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.
CamCOPS 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 CamCOPS. If not, see <https://www.gnu.org/licenses/>.
*/
// #define DEBUG_FOCUS
#include "focuswatcher.h"
#include <QDebug>
#include <QEvent>
FocusWatcher::FocusWatcher(QObject* parent) :
QObject(parent) // owned by parent henceforth
{
Q_ASSERT(parent);
parent->installEventFilter(this);
}
bool FocusWatcher::eventFilter(QObject* obj, QEvent* event)
{
Q_UNUSED(obj)
const QEvent::Type type = event->type();
if (type == QEvent::FocusIn) {
#ifdef DEBUG_FOCUS
qDebug() << obj->objectName() << "FocusIn";
#endif
emit focusChanged(true);
} else if (type == QEvent::FocusOut) {
#ifdef DEBUG_FOCUS
qDebug() << obj->objectName() << "FocusOut";
#endif
emit focusChanged(false);
}
return false; // continue processing the event
}