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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "audiolevel.h"
#include <QPainter>
AudioLevel::AudioLevel(QWidget *parent) : QWidget(parent)
{
setMinimumHeight(15);
setMaximumHeight(50);
}
void AudioLevel::setLevel(qreal level)
{
if (m_level != level) {
m_level = level;
update();
}
}
void AudioLevel::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
QPainter painter(this);
// draw level
qreal widthLevel = m_level * width();
painter.fillRect(0, 0, widthLevel, height(), Qt::red);
// clear the rest of the control
painter.fillRect(widthLevel, 0, width(), height(), Qt::black);
}
#include "moc_audiolevel.cpp"
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