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