void BezierCurveN<3>::feed(PathSink &sink, bool moveto_initial) const
{
if (moveto_initial) {
sink.moveTo(controlPoint(0));
}
sink.curveTo(controlPoint(1), controlPoint(2), controlPoint(3));
}
void BezierCurveN<1>::feed(PathSink &sink, bool moveto_initial) const
{
if (moveto_initial) {
sink.moveTo(controlPoint(0));
}
sink.lineTo(controlPoint(1));
}
void BezierCurve::feed(PathSink &sink, bool moveto_initial) const
{
if (size() > 4) {
Curve::feed(sink, moveto_initial);
return;
}
Point ip = controlPoint(0);
if (moveto_initial) {
sink.moveTo(ip);
}
switch (size()) {
case 2:
sink.lineTo(controlPoint(1));
break;
case 3:
sink.quadTo(controlPoint(1), controlPoint(2));
break;
case 4:
sink.curveTo(controlPoint(1), controlPoint(2), controlPoint(3));
break;
default:
// TODO: add a path sink method that accepts a vector of control points
// and converts to cubic spline by default
assert(false);
break;
}
}
void Curve::feed(PathSink &sink, bool moveto_initial) const
{
std::vector<Point> pts;
sbasis_to_bezier(pts, toSBasis(), 2); //TODO: use something better!
if (moveto_initial) {
sink.moveTo(initialPoint());
}
sink.curveTo(pts[0], pts[1], pts[2]);
}
static void
StreamPathToSinkApplierFunc(void *vinfo, const CGPathElement *element)
{
PathSink *sink = reinterpret_cast<PathSink*>(vinfo);
switch (element->type) {
case kCGPathElementMoveToPoint:
{
CGPoint pt = element->points[0];
sink->MoveTo(CGPointToPoint(pt));
break;
}
case kCGPathElementAddLineToPoint:
{
CGPoint pt = element->points[0];
sink->LineTo(CGPointToPoint(pt));
break;
}
case kCGPathElementAddQuadCurveToPoint:
{
CGPoint cpt = element->points[0];
CGPoint pt = element->points[1];
sink->QuadraticBezierTo(CGPointToPoint(cpt),
CGPointToPoint(pt));
break;
}
case kCGPathElementAddCurveToPoint:
{
CGPoint cpt1 = element->points[0];
CGPoint cpt2 = element->points[1];
CGPoint pt = element->points[2];
sink->BezierTo(CGPointToPoint(cpt1),
CGPointToPoint(cpt2),
CGPointToPoint(pt));
break;
}
case kCGPathElementCloseSubpath:
{
sink->Close();
break;
}
}
}