QGIS API Documentation 3.99.0-Master (2fe06baccd8)
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qgsfocuswatcher.cpp
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1/***************************************************************************
2 qgsfocuswatcher.h
3 -----------------
4 Date : April 2016
5 Copyright : (C) 2016 by Nyall Dawson
6 Email : nyall dot dawson at gmail 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 "qgsfocuswatcher.h"
17
18#include <QEvent>
19
20#include "moc_qgsfocuswatcher.cpp"
21
23 : QObject( parent )
24{
25 Q_ASSERT( parent );
26 parent->installEventFilter( this );
27}
28
29bool QgsFocusWatcher::eventFilter( QObject *, QEvent *event )
30{
31 switch ( event->type() )
32 {
33 case QEvent::FocusIn:
34 emit focusChanged( true );
35 emit focusIn();
36 break;
37 case QEvent::FocusOut:
38 emit focusChanged( false );
39 emit focusOut();
40 break;
41 default:
42 break;
43 }
44 return false;
45}
void focusIn()
Emitted when parent object gains focus.
void focusChanged(bool focused)
Emitted when parent object's focus changes.
void focusOut()
Emitted when parent object loses focus.
bool eventFilter(QObject *obj, QEvent *event) override
QgsFocusWatcher(QObject *parent)
Constructor for QgsFocusWatcher.