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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "fullscreennotification.h"
#include <QGraphicsOpacityEffect>
#include <QPropertyAnimation>
#include <QSequentialAnimationGroup>
FullScreenNotification::FullScreenNotification(QWidget *parent)
: QLabel(parent)
, m_previouslyVisible(false)
{
setText(tr("You are now in full screen mode. Press ESC to quit!"));
setStyleSheet(
"font-size: 24px;"
"color: white;"
"background-color: black;"
"border-color: white;"
"border-width: 2px;"
"border-style: solid;"
"padding: 100px");
setAttribute(Qt::WA_TransparentForMouseEvents);
auto effect = new QGraphicsOpacityEffect;
effect->setOpacity(1);
setGraphicsEffect(effect);
auto animations = new QSequentialAnimationGroup(this);
animations->addPause(3000);
auto opacityAnimation = new QPropertyAnimation(effect, "opacity", animations);
opacityAnimation->setDuration(2000);
opacityAnimation->setStartValue(1.0);
opacityAnimation->setEndValue(0.0);
opacityAnimation->setEasingCurve(QEasingCurve::OutQuad);
animations->addAnimation(opacityAnimation);
connect(this, &FullScreenNotification::shown,
[animations](){ animations->start(); });
connect(animations, &QAbstractAnimation::finished,
[this](){ this->hide(); });
}
void FullScreenNotification::showEvent(QShowEvent *event)
{
QLabel::showEvent(event);
if (!m_previouslyVisible && isVisible())
emit shown();
m_previouslyVisible = isVisible();
}
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