static cairo_status_t
_cairo_path_bounder_curve_to (void *closure,
const cairo_point_t *b,
const cairo_point_t *c,
const cairo_point_t *d)
{
cairo_path_bounder_t *bounder = closure;
/* If the bbox of the control points is entirely inside, then we
* do not need to further evaluate the spline.
*/
if (! bounder->has_point ||
b->x < bounder->extents.p1.x || b->x > bounder->extents.p2.x ||
b->y < bounder->extents.p1.y || b->y > bounder->extents.p2.y ||
c->x < bounder->extents.p1.x || c->x > bounder->extents.p2.x ||
c->y < bounder->extents.p1.y || c->y > bounder->extents.p2.y ||
d->x < bounder->extents.p1.x || d->x > bounder->extents.p2.x ||
d->y < bounder->extents.p1.y || d->y > bounder->extents.p2.y)
{
return _cairo_spline_bound (_cairo_path_bounder_line_to, bounder,
&bounder->current_point, b, c, d);
}
else
{
/* All control points are within the current extents. */
return CAIRO_STATUS_SUCCESS;
}
}
static cairo_status_t
_cairo_path_bounder_curve_to (void *closure,
const cairo_point_t *b,
const cairo_point_t *c,
const cairo_point_t *d)
{
cairo_path_bounder_t *bounder = closure;
return _cairo_spline_bound (_cairo_path_bounder_line_to, bounder,
&bounder->current_point, b, c, d);
}
/* assumes a has been previously added */
void
_cairo_box_add_curve_to (cairo_box_t *extents,
const cairo_point_t *a,
const cairo_point_t *b,
const cairo_point_t *c,
const cairo_point_t *d)
{
_cairo_box_add_point (extents, d);
if (!_cairo_box_contains_point (extents, b) ||
!_cairo_box_contains_point (extents, c))
{
cairo_status_t status;
status = _cairo_spline_bound (_cairo_box_add_spline_point,
extents, a, b, c, d);
assert (status == CAIRO_STATUS_SUCCESS);
}
}
