/****************************************************************************** * * Copyright (C) 1997-2019 by Dimitri van Heesch. * * Permission to use, copy, modify, and distribute this software and its * documentation under the terms of the GNU General Public License is hereby * granted. No representations are made about the suitability of this software * for any purpose. It is provided "as is" without express or implied warranty. * See the GNU General Public License for more details. * */ #ifndef HELPLABEL_H #define HELPLABEL_H #include #include class HelpLabel : public QLabel { Q_OBJECT public: HelpLabel(const QString &text) : QLabel(text) { setContextMenuPolicy(Qt::CustomContextMenu); connect(this,SIGNAL(customContextMenuRequested(const QPoint&)), this,SLOT(showMenu(const QPoint&))); } signals: void enter(); void reset(); private slots: void showMenu(const QPoint &p) { QMenu menu(this); QAction *a = menu.addAction(tr("Reset to default")); if (menu.exec(mapToGlobal(p))==a) { reset(); } } protected: void enterEvent( QEvent * event ) { enter(); QLabel::enterEvent(event); } }; #endif