skia/viewer/src/contour_measure.cpp

#include "contour_measure.hpp"
#include "to_skia.hpp"

#include "include/core/SkContourMeasure.h"

namespace rive {

ContourMeasure::ContourMeasure(const RawPath& path) {
    auto skpath = ToSkia::convert(path);
    m_meas = SkContourMeasureIter(skpath, false).next().release();
}

ContourMeasure::~ContourMeasure() {
    m_meas->unref();
}

float ContourMeasure::length() const { return m_meas->length(); }

bool ContourMeasure::computePosTan(float distance, Vec2D* pos, Vec2D* tan) const {
    return m_meas->getPosTan(distance, (SkPoint*)pos, (SkPoint*)tan);
}

RawPath ContourMeasure::warp(const RawPath& src) const {
    RawPath dst;

    RawPath::Iter iter(src);
    while (auto rec = iter.next()) {
        switch (rec.verb) {
            case PathVerb::move:
                dst.move(this->warp(rec.pts[0]));
                break;
            case PathVerb::line:
                dst.line(this->warp(rec.pts[0]));
                break;
            case PathVerb::quad:
                dst.quad(this->warp(rec.pts[0]), this->warp(rec.pts[1]));
                break;
            case PathVerb::cubic:
                dst.cubic(this->warp(rec.pts[0]), this->warp(rec.pts[1]), this->warp(rec.pts[2]));
                break;
            case PathVerb::close:
                dst.close();
                break;
        }
    }
    return dst;
}

}