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++ // Copyright (C) 2021 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "notificationclient.h"
++
++ #include <QApplication>
++ #include <QWidget>
++ #include <QPushButton>
++ #include <QHBoxLayout>
++ #include <QLabel>
++ #include <QFont>
++
++ int main(int argc, char *argv[])
++ {
++ QApplication a(argc, argv);
++
++ QWidget widget;
++ QPushButton happyButton;
++ happyButton.setIcon(QIcon(":/images/happy.png"));
++ happyButton.setIconSize(QSize(happyButton.width(), 120));
++
++ QPushButton sadButton;
++ sadButton.setIcon(QIcon(":/images/sad.png"));
++ sadButton.setIconSize(QSize(sadButton.width(), 120));
++
++ QVBoxLayout mainLayout;
++ QHBoxLayout labelLayout;
++ QLabel label = QLabel("Click a smiley to notify your mood");
++ QFont font = label.font();
++ font.setPointSize(20);
++ label.setFont(font);
++ labelLayout.addWidget(&label);
++ labelLayout.setAlignment(Qt::AlignHCenter);
++ mainLayout.addLayout(&labelLayout);
++
++ QHBoxLayout smileysLayout;
++ smileysLayout.addWidget(&sadButton);
++ smileysLayout.addWidget(&happyButton);
++ smileysLayout.setAlignment(Qt::AlignCenter);
++ mainLayout.addLayout(&smileysLayout);
++ widget.setLayout(&mainLayout);
++
++ //! [Connect button signals]
++ QObject::connect(&happyButton, &QPushButton::clicked, &happyButton, []() {
++ NotificationClient().setNotification("The user is happy!");
++ });
++
++ QObject::connect(&sadButton, &QPushButton::clicked, &happyButton, []() {
++ NotificationClient().setNotification("The user is sad!");
++ });
++ //! [Connect button signals]
++
++ widget.show();
++ return a.exec();
++ }
++