static void copyClosingSubpathsApplierFunction(void* info, const CGPathElement* element)
{
CGMutablePathRef path = static_cast<CGMutablePathRef>(info);
CGPoint* points = element->points;
switch (element->type) {
case kCGPathElementMoveToPoint:
if (!CGPathIsEmpty(path)) // to silence a warning when trying to close an empty path
CGPathCloseSubpath(path); // This is the only change from CGPathCreateMutableCopy
CGPathMoveToPoint(path, 0, points[0].x, points[0].y);
break;
case kCGPathElementAddLineToPoint:
CGPathAddLineToPoint(path, 0, points[0].x, points[0].y);
break;
case kCGPathElementAddQuadCurveToPoint:
CGPathAddQuadCurveToPoint(path, 0, points[0].x, points[0].y, points[1].x, points[1].y);
break;
case kCGPathElementAddCurveToPoint:
CGPathAddCurveToPoint(path, 0, points[0].x, points[0].y, points[1].x, points[1].y, points[2].x, points[2].y);
break;
case kCGPathElementCloseSubpath:
CGPathCloseSubpath(path);
break;
}
}
Point
PathBuilderCG::CurrentPoint() const
{
Point ret;
if (!CGPathIsEmpty(mCGPath)) {
CGPoint pt = CGPathGetCurrentPoint(mCGPath);
ret.MoveTo(pt.x, pt.y);
}
return ret;
}
void
PathBuilderCG::LineTo(const Point &aPoint)
{
if (!aPoint.IsFinite()) {
return;
}
if (CGPathIsEmpty(mCGPath))
MoveTo(aPoint);
else
CGPathAddLineToPoint(mCGPath, nullptr, aPoint.x, aPoint.y);
}
void
PathBuilderCG::QuadraticBezierTo(const Point &aCP1,
const Point &aCP2)
{
if (!aCP1.IsFinite() || !aCP2.IsFinite()) {
return;
}
if (CGPathIsEmpty(mCGPath))
MoveTo(aCP1);
CGPathAddQuadCurveToPoint(mCGPath, nullptr,
aCP1.x, aCP1.y,
aCP2.x, aCP2.y);
}
bool Path::isEmpty() const
{
return CGPathIsEmpty(m_path);
}
void
PathBuilderCG::Close()
{
if (!CGPathIsEmpty(mCGPath))
CGPathCloseSubpath(mCGPath);
}
void Path::closeSubpath()
{
if (!CGPathIsEmpty(m_path)) // to silence a warning when trying to close an empty path
CGPathCloseSubpath(m_path);
}
bool Path::isEmpty() const
{
return isNull() || CGPathIsEmpty(m_path);
}
