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| |
| #include "qclipperutils_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| static const double kClipperScaleFactor = 281474976710656.0; // 48 bits of precision |
| static const double kClipperScaleFactorInv = 1.0 / kClipperScaleFactor; |
| |
| double QClipperUtils::clipperScaleFactor() |
| { |
| return kClipperScaleFactor; |
| } |
| |
| QDoubleVector2D QClipperUtils::toVector2D(const IntPoint &p) |
| { |
| return QDoubleVector2D(double(p.X) * kClipperScaleFactorInv, double(p.Y) * kClipperScaleFactorInv); |
| } |
| |
| IntPoint QClipperUtils::toIntPoint(const QDoubleVector2D &p) |
| { |
| return IntPoint(cInt(p.x() * kClipperScaleFactor), cInt(p.y() * kClipperScaleFactor)); |
| } |
| |
| QList<QDoubleVector2D> QClipperUtils::pathToQList(const Path &path) |
| { |
| QList<QDoubleVector2D> res; |
| res.reserve(int(path.size())); |
| for (const IntPoint &ip: path) |
| res.append(toVector2D(ip)); |
| return res; |
| } |
| |
| QList<QList<QDoubleVector2D> > QClipperUtils::pathsToQList(const Paths &paths) |
| { |
| QList<QList<QDoubleVector2D> > res; |
| res.reserve(int(paths.size())); |
| for (const Path &p: paths) { |
| res.append(pathToQList(p)); |
| } |
| return res; |
| } |
| |
| Path QClipperUtils::qListToPath(const QList<QDoubleVector2D> &list) |
| { |
| Path res; |
| res.reserve(list.size()); |
| for (const QDoubleVector2D &p: list) |
| res.push_back(toIntPoint(p)); |
| return res; |
| } |
| |
| Paths QClipperUtils::qListToPaths(const QList<QList<QDoubleVector2D> > &lists) |
| { |
| Paths res; |
| res.reserve(lists.size()); |
| for (const QList<QDoubleVector2D> &l: lists) { |
| res.push_back(qListToPath(l)); |
| } |
| return res; |
| } |
| |
| QT_END_NAMESPACE |