func (self *Surface) ClipRectangleList() ([]Rectangle, Status) {
list := C.cairo_copy_clip_rectangle_list(self.context)
defer C.cairo_rectangle_list_destroy(list)
rects := make([]Rectangle, int(list.num_rectangles))
C.memcpy(unsafe.Pointer(&rects[0]), unsafe.Pointer(list.rectangles), C.size_t(list.num_rectangles*8))
return rects, Status(list.status)
}
//ClipRectangles reports the current clip region as a list of rectangles
//in user coordinates or an error if the clip region cannot be so represented.
//
//Originally cairo_copy_clip_rectangle_list.
func (c *Context) ClipRectangles() (list []Rectangle, err error) {
rects := C.cairo_copy_clip_rectangle_list(c.c)
if err := toerr(rects.status); err != nil {
return nil, err
}
n := int(rects.num_rectangles)
if n == 0 {
return nil, nil
}
rs := (*[1 << 30]C.cairo_rectangle_t)(unsafe.Pointer(rects.rectangles))[:n:n]
list = make([]Rectangle, n)
for i, v := range rs {
list[i] = cRect(v.x, v.y, v.x+v.width, v.y+v.height)
}
C.cairo_rectangle_list_destroy(rects)
return
}