Revision control
++ // Copyright (C) 2021 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 "qclipperutils_p.h"
++ #include <clip2tri.h>
++
++ QT_BEGIN_NAMESPACE
++
++ class QClipperUtilsPrivate
++ {
++ public:
++ c2t::clip2tri m_clipper;
++ Path m_cachedPolygon;
++ };
++
++ static const double kClipperScaleFactor = 281474976710656.0; // 48 bits of precision
++ static const double kClipperScaleFactorInv = 1.0 / kClipperScaleFactor;
++
++ static IntPoint toIntPoint(const QDoubleVector2D &p)
++ {
++ return IntPoint(cInt(p.x() * kClipperScaleFactor), cInt(p.y() * kClipperScaleFactor));
++ }
++
++ static QDoubleVector2D toVector2D(const IntPoint &p)
++ {
++ return QDoubleVector2D(double(p.X) * kClipperScaleFactorInv, double(p.Y) * kClipperScaleFactorInv);
++ }
++
++ static QList<QDoubleVector2D> pathToQList(const Path &path)
++ {
++ QList<QDoubleVector2D> res;
++ res.reserve(int(path.size()));
++ for (const IntPoint &ip: path)
++ res.append(toVector2D(ip));
++ return res;
++ }
++
++ static QList<QList<QDoubleVector2D>> pathsToQList(const Paths &paths)
++ {
++ QList<QList<QDoubleVector2D> > res;
++ res.reserve(int(paths.size()));
++ for (const Path &p: paths) {
++ res.append(pathToQList(p));
++ }
++ return res;
++ }
++
++ static Path qListToPath(const QList<QDoubleVector2D> &list)
++ {
++ Path res;
++ res.reserve(list.size());
++ for (const QDoubleVector2D &p: list)
++ res.push_back(toIntPoint(p));
++ return res;
++ }
++
++ QClipperUtils::QClipperUtils() : d_ptr(new QClipperUtilsPrivate)
++ {
++ }
++
++ QClipperUtils::QClipperUtils(const QClipperUtils &other) : d_ptr(new QClipperUtilsPrivate)
++ {
++ d_ptr->m_cachedPolygon = other.d_ptr->m_cachedPolygon;
++ }
++
++ QClipperUtils::~QClipperUtils()
++ {
++ delete d_ptr;
++ }
++
++ double QClipperUtils::clipperScaleFactor()
++ {
++ return kClipperScaleFactor;
++ }
++
++ int QClipperUtils::pointInPolygon(const QDoubleVector2D &point, const QList<QDoubleVector2D> &polygon)
++ {
++ if (polygon.isEmpty())
++ qWarning("No vertices are specified for the polygon!");
++ return c2t::clip2tri::pointInPolygon(toIntPoint(point), qListToPath(polygon));
++ }
++
++ void QClipperUtils::clearClipper()
++ {
++ d_ptr->m_clipper.clearClipper();
++ }
++
++ void QClipperUtils::addSubjectPath(const QList<QDoubleVector2D> &path, bool closed)
++ {
++ d_ptr->m_clipper.addSubjectPath(qListToPath(path), closed);
++ }
++
++ void QClipperUtils::addClipPolygon(const QList<QDoubleVector2D> &path)
++ {
++ d_ptr->m_clipper.addClipPolygon(qListToPath(path));
++ }
++
++ QList<QList<QDoubleVector2D>> QClipperUtils::execute(QClipperUtils::Operation op,
++ QClipperUtils::PolyFillType subjFillType,
++ QClipperUtils::PolyFillType clipFillType)
++ {
++ auto result = d_ptr->m_clipper.execute(static_cast<c2t::clip2tri::Operation>(op),
++ static_cast<QtClipperLib::PolyFillType>(subjFillType),
++ static_cast<QtClipperLib::PolyFillType>(clipFillType));
++ return pathsToQList(result);
++ }
++
++ void QClipperUtils::setPolygon(const QList<QDoubleVector2D> &polygon)
++ {
++ d_ptr->m_cachedPolygon = qListToPath(polygon);
++ }
++
++ int QClipperUtils::pointInPolygon(const QDoubleVector2D &point) const
++ {
++ if (d_ptr->m_cachedPolygon.empty())
++ qWarning("No vertices are specified for the polygon!");
++ return c2t::clip2tri::pointInPolygon(toIntPoint(point), d_ptr->m_cachedPolygon);
++ }
++
++ QT_END_NAMESPACE