diff options
Diffstat (limited to 'src/cairo-polygon.c')
| -rw-r--r-- | src/cairo-polygon.c | 56 |
1 files changed, 23 insertions, 33 deletions
diff --git a/src/cairo-polygon.c b/src/cairo-polygon.c index 97f074a33..fbda73211 100644 --- a/src/cairo-polygon.c +++ b/src/cairo-polygon.c @@ -35,9 +35,6 @@ static cairo_status_t _cairo_polygon_grow_by (cairo_polygon_t *polygon, int additional); -static void -_cairo_polygon_set_last_point (cairo_polygon_t *polygon, cairo_point_t *point); - void _cairo_polygon_init (cairo_polygon_t *polygon) { @@ -46,10 +43,7 @@ _cairo_polygon_init (cairo_polygon_t *polygon) polygon->edges_size = 0; polygon->edges = NULL; - polygon->first_point_defined = 0; - polygon->last_point_defined = 0; - - polygon->closed = 0; + polygon->has_current_point = 0; } void @@ -62,10 +56,7 @@ _cairo_polygon_fini (cairo_polygon_t *polygon) polygon->num_edges = 0; } - polygon->first_point_defined = 0; - polygon->last_point_defined = 0; - - polygon->closed = 0; + polygon->has_current_point = 0; } static cairo_status_t @@ -92,25 +83,12 @@ _cairo_polygon_grow_by (cairo_polygon_t *polygon, int additional) return CAIRO_STATUS_SUCCESS; } -static void -_cairo_polygon_set_last_point (cairo_polygon_t *polygon, cairo_point_t *point) -{ - polygon->last_point = *point; - polygon->last_point_defined = 1; -} - cairo_status_t _cairo_polygon_add_edge (cairo_polygon_t *polygon, cairo_point_t *p1, cairo_point_t *p2) { cairo_status_t status; cairo_edge_t *edge; - if (! polygon->first_point_defined) { - polygon->first_point = *p1; - polygon->first_point_defined = 1; - polygon->closed = 0; - } - /* drop horizontal edges */ if (p1->y == p2->y) { goto DONE; @@ -137,20 +115,31 @@ _cairo_polygon_add_edge (cairo_polygon_t *polygon, cairo_point_t *p1, cairo_poin polygon->num_edges++; DONE: - _cairo_polygon_set_last_point (polygon, p2); + _cairo_polygon_move_to (polygon, p2); + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_polygon_move_to (cairo_polygon_t *polygon, cairo_point_t *point) +{ + if (! polygon->has_current_point) + polygon->first_point = *point; + polygon->current_point = *point; + polygon->has_current_point = 1; return CAIRO_STATUS_SUCCESS; } cairo_status_t -_cairo_polygon_add_point (cairo_polygon_t *polygon, cairo_point_t *point) +_cairo_polygon_line_to (cairo_polygon_t *polygon, cairo_point_t *point) { cairo_status_t status = CAIRO_STATUS_SUCCESS; - if (polygon->last_point_defined) { - status = _cairo_polygon_add_edge (polygon, &polygon->last_point, point); + if (polygon->has_current_point) { + status = _cairo_polygon_add_edge (polygon, &polygon->current_point, point); } else { - _cairo_polygon_set_last_point (polygon, point); + _cairo_polygon_move_to (polygon, point); } return status; @@ -161,13 +150,14 @@ _cairo_polygon_close (cairo_polygon_t *polygon) { cairo_status_t status; - if (polygon->closed == 0 && polygon->last_point_defined) { - status = _cairo_polygon_add_edge (polygon, &polygon->last_point, &polygon->first_point); + if (polygon->has_current_point) { + status = _cairo_polygon_add_edge (polygon, + &polygon->current_point, + &polygon->first_point); if (status) return status; - polygon->closed = 1; - polygon->first_point_defined = 0; + polygon->has_current_point = 0; } return CAIRO_STATUS_SUCCESS; |