QGIS API Documentation 3.41.0-Master (d5b93354e9c)
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qgsfocuskeeper.cpp
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1/***************************************************************************
2 qgsfocuskeeper.cpp
3 -----------------
4 Date : May 2020
5 Copyright : (C) 2020 Even Rouault
6 Email : even dot rouault at spatialys dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#include "qgsfocuskeeper.h"
17#include "moc_qgsfocuskeeper.cpp"
18
19#include <QApplication>
20#include <QEvent>
21#include <QWidget>
22
24 : mWidgetToKeepFocused( QApplication::focusWidget() )
25{
26 if ( mWidgetToKeepFocused )
27 mWidgetToKeepFocused->installEventFilter( this );
28}
29
31{
32 if ( mWidgetToKeepFocused )
33 mWidgetToKeepFocused->removeEventFilter( this );
34}
35
36bool QgsFocusKeeper::eventFilter( QObject *obj, QEvent *event )
37{
38 if ( obj == mWidgetToKeepFocused && event && ( event->type() == QEvent::FocusOut || event->type() == QEvent::FocusAboutToChange ) )
39 {
40 return true;
41 }
42 return QObject::eventFilter( obj, event );
43}
~QgsFocusKeeper() override
bool eventFilter(QObject *obj, QEvent *event) override