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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++
++ #include "qquickclipnode_p.h"
++
++ #include <QtGui/qvector2d.h>
++ #include <QtCore/qmath.h>
++
++ QT_BEGIN_NAMESPACE
++
++ QQuickDefaultClipNode::QQuickDefaultClipNode(const QRectF &rect)
++ : m_rect(rect)
++ , m_radius(0)
++ , m_dirty_geometry(true)
++ , m_geometry(QSGGeometry::defaultAttributes_Point2D(), 0)
++ {
++ Q_UNUSED(m_reserved);
++ setGeometry(&m_geometry);
++ setIsRectangular(true);
++ }
++
++ void QQuickDefaultClipNode::setRect(const QRectF &rect)
++ {
++ m_rect = rect;
++ m_dirty_geometry = true;
++ }
++
++ void QQuickDefaultClipNode::setRadius(qreal radius)
++ {
++ m_radius = radius;
++ m_dirty_geometry = true;
++ setIsRectangular(radius == 0);
++ }
++
++ void QQuickDefaultClipNode::update()
++ {
++ if (m_dirty_geometry) {
++ updateGeometry();
++ m_dirty_geometry = false;
++ }
++ }
++
++ void QQuickDefaultClipNode::updateGeometry()
++ {
++ QSGGeometry *g = geometry();
++
++ if (qFuzzyIsNull(m_radius)) {
++ g->allocate(4);
++ QSGGeometry::updateRectGeometry(g, m_rect);
++
++ } else {
++ int vertexCount = 0;
++
++ // Radius should never exceeds half of the width or half of the height
++ qreal radius = qMin(qMin(m_rect.width() / 2, m_rect.height() / 2), m_radius);
++ QRectF rect = m_rect;
++ rect.adjust(radius, radius, -radius, -radius);
++
++ int segments = qMin(30, qCeil(radius)); // Number of segments per corner.
++
++ g->allocate((segments + 1) * 4);
++
++ QVector2D *vertices = (QVector2D *)g->vertexData();
++
++ for (int part = 0; part < 2; ++part) {
++ for (int i = 0; i <= segments; ++i) {
++ //### Should change to calculate sin/cos only once.
++ qreal angle = qreal(0.5 * M_PI) * (part + i / qreal(segments));
++ qreal s = qFastSin(angle);
++ qreal c = qFastCos(angle);
++ qreal y = (part ? rect.bottom() : rect.top()) - radius * c; // current inner y-coordinate.
++ qreal lx = rect.left() - radius * s; // current inner left x-coordinate.
++ qreal rx = rect.right() + radius * s; // current inner right x-coordinate.
++
++ vertices[vertexCount++] = QVector2D(rx, y);
++ vertices[vertexCount++] = QVector2D(lx, y);
++ }
++ }
++
++ }
++ #ifdef QSG_RUNTIME_DESCRIPTION
++ #ifndef QT_NO_DEBUG_STREAM
++ QString desc;
++ {
++ QDebug dbg(&desc);
++ dbg << m_rect;
++ if (!qFuzzyIsNull(m_radius))
++ dbg << "radius" << m_radius;
++ }
++ qsgnode_set_description(this, desc);
++ #endif
++ #endif
++ setClipRect(m_rect);
++ markDirty(DirtyGeometry);
++ }
++
++ QT_END_NAMESPACE