//NewRadialGradient creates a new radial gradient between the circles
//start and end, with specified color stops.
//
//Originally cairo_pattern_create_radial and cairo_pattern_add_color_stop_rgba.
func NewRadialGradient(start, end Circle, colorStops ...ColorStop) RadialGradient {
x0, y0, r0 := start.c()
x1, y1, r1 := end.c()
p := C.cairo_pattern_create_radial(x0, y0, r0, x1, y1, r1)
P := patternGradient{
XtensionPattern: XtensionNewPattern(p),
}
P.addColorStops(colorStops)
return RadialGradient{
patternGradient: P,
start: start,
end: end,
}
}
// cairo_pattern_t* cairo_pattern_create_radial (double cx0, double cy0, double radius0, double cx1, double cy1, double radius1);
func RadialGradient(cx0, cy0, radius0, cx1, cy1, radius1 float64) (pattern *Pattern) {
return &Pattern{C.cairo_pattern_create_radial(C.double(cx0), C.double(cy0), C.double(radius0),
C.double(cx1), C.double(cy1), C.double(radius1))}
}