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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "widget.h"
#include "helper.h"
#include <QPainter>
#include <QTimer>
//! [0]
Widget::Widget(Helper *helper, QWidget *parent)
: QWidget(parent), helper(helper)
{
elapsed = 0;
setFixedSize(200, 200);
}
//! [0]
//! [1]
void Widget::animate()
{
elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000;
update();
}
//! [1]
//! [2]
void Widget::paintEvent(QPaintEvent *event)
{
QPainter painter;
painter.begin(this);
painter.setRenderHint(QPainter::Antialiasing);
helper->paint(&painter, event, elapsed);
painter.end();
}
//! [2]
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