//CurveTo adds a cubic Bézier spline to the path from the current point to p3
//in user space coordinates, using p1 and p2 as the control points.
//After calling CurveTo, the current point will be p3.
//
//If there is no current point, CurveTo will behave as if preceded by a call
//to MoveTo(p1)
//
//Originally cairo_curve_to.
func (c *Context) CurveTo(p1, p2, p3 Point) *Context {
x0, y0 := p1.c()
x1, y1 := p2.c()
x2, y2 := p3.c()
C.cairo_curve_to(c.c, x0, y0, x1, y1, x2, y2)
return c
}
func (self *Surface) CurveTo(x1, y1, x2, y2, x3, y3 float64) {
C.cairo_curve_to(self.context,
C.double(x1), C.double(y1),
C.double(x2), C.double(y2),
C.double(x3), C.double(y3))
}
// CurveTo is a wrapper around cairo_curve_to().
func (v *Context) CurveTo(x1, y1, x2, y2, x3, y3 float64) {
C.cairo_curve_to(v.native(), C.double(x1), C.double(y1), C.double(x2), C.double(y2), C.double(x3), C.double(y3))
}