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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QPaintEvent>
#include <QPainter>
namespace src_gui_painting_qregion {
struct MyWidget : public QPaintDevice
{
void paintEvent(QPaintEvent *);
};
//! [0]
void MyWidget::paintEvent(QPaintEvent *)
{
QRegion r1(QRect(100, 100, 200, 80), // r1: elliptic region
QRegion::Ellipse);
QRegion r2(QRect(100, 120, 90, 30)); // r2: rectangular region
QRegion r3 = r1.intersected(r2); // r3: intersection
QPainter painter(this);
painter.setClipRegion(r3);
// ... // paint clipped graphics
}
//! [0]
} // src_gui_painting_qregion
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