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4da1ce8404
Run clang-tidy modernize-use-override to remove all the redundant virtual keywords from overridden methods, and add some missing overrides. Another benefit is that this has also added the overrides on destructors, which will cause a build failure if a base class is missing a virtual destructor.
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
/***************************************************************************
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qgsfocuswatcher.h
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-----------------
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Date : April 2016
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Copyright : (C) 2016 by Nyall Dawson
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Email : nyall dot dawson at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSFOCUSWATCHER_H
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#define QGSFOCUSWATCHER_H
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#include <QObject>
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#include "qgis.h"
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#include "qgis_gui.h"
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/**
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* \ingroup gui
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* \class QgsFocusWatcher
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* A event filter for watching for focus events on a parent object. Usually QObjects must
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* subclass and override methods like focusOutEvent to handle focus events. Using this class
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* as an event filter avoids the need to subclass objects and the focus events can be directly
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* caught using the emitted signals.
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* \since QGIS 2.16
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*/
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class GUI_EXPORT QgsFocusWatcher : public QObject
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{
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Q_OBJECT
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public:
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/**
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* Constructor for QgsFocusWatcher.
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* \param parent parent widget to catch focus events for. This class will automatically be
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* installed as an event filter for parent.
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*/
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explicit QgsFocusWatcher( QObject *parent SIP_TRANSFERTHIS );
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bool eventFilter( QObject *obj, QEvent *event ) override;
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signals:
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/**
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* Emitted when parent object's focus changes.
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* \param focused true if object gained focus, false if object lost focus
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*/
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void focusChanged( bool focused );
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//! Emitted when parent object gains focus.
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void focusIn();
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//! Emitted when parent object loses focus.
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void focusOut();
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};
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#endif //QGSFOCUSWATCHER_H
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