int traceConicBezier(FT_VECTOR_PARAMETER *control, FT_VECTOR_PARAMETER *to, void *obj)
{
Glyph *glyph = reinterpret_cast<Glyph *>(obj);
Affine &affine = glyph->affine();
BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
int index = path->m_array.count();
if(!(index > 0))
return -1;
path->m_array.resize(index + 1);
ArtBpath *s = &path->m_array[index - 1];
ArtBpath *e = &path->m_array[index];
e->code = ART_CURVETO;
Point c = affine.mapPoint(Point(control->x, control->y));
Point p = affine.mapPoint(Point(to->x, to->y));
e->x3 = p.x();
e->y3 = p.y();
path->m_array[index].x1 = c.x() - (c.x() - s->x3) / 3;
path->m_array[index].y1 = c.y() - (c.y() - s->y3) / 3;
path->m_array[index].x2 = c.x() + (e->x3 - c.x()) / 3;
path->m_array[index].y2 = c.y() + (e->y3 - c.y()) / 3;
return 0;
}
int traceLineto(FT_VECTOR_PARAMETER *to, void *obj)
{
Glyph *glyph = reinterpret_cast<Glyph *>(obj);
Affine &affine = glyph->affine();
BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
Point p = affine.mapPoint(Point(to->x, to->y));
int index = path->m_array.count();
ArtBpath *last = &path->m_array[index - 1];
if((p.x() != last->x3) || (p.y() != last->y3))
{
path->m_array.resize(index + 1);
path->m_array[index].code = ART_LINETO;
path->m_array[index].x3 = p.x();
path->m_array[index].y3 = p.y();
}
return 0;
}
int traceCubicBezier(FT_VECTOR_PARAMETER *control1, FT_VECTOR_PARAMETER *control2, FT_VECTOR_PARAMETER *to, void *obj)
{
Glyph *glyph = reinterpret_cast<Glyph *>(obj);
Affine &affine = glyph->affine();
BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
Point p = affine.mapPoint(Point(to->x, to->y));
Point c1 = affine.mapPoint(Point(control1->x, control1->y));
Point c2 = affine.mapPoint(Point(control2->x, control2->y));
int index = path->m_array.count();
path->m_array.resize(index + 1);
path->m_array[index].code = ART_CURVETO;
path->m_array[index].x1 = c1.x();
path->m_array[index].y1 = c1.y();
path->m_array[index].x2 = c2.x();
path->m_array[index].y2 = c2.y();
path->m_array[index].x3 = p.x();
path->m_array[index].y3 = p.y();
return 0;
}