diff options
Diffstat (limited to 'src/cairo-path-bounds.c')
| -rw-r--r-- | src/cairo-path-bounds.c | 65 |
1 files changed, 61 insertions, 4 deletions
diff --git a/src/cairo-path-bounds.c b/src/cairo-path-bounds.c index 1fadd84d..1a3cdf06 100644 --- a/src/cairo-path-bounds.c +++ b/src/cairo-path-bounds.c @@ -173,7 +173,7 @@ _cairo_path_bounder_close_path (void *closure) * the control points of the curves, not the flattened path). */ void -_cairo_path_fixed_approximate_clip_extents (cairo_path_fixed_t *path, +_cairo_path_fixed_approximate_clip_extents (const cairo_path_fixed_t *path, cairo_rectangle_int_t *extents) { cairo_path_bounder_t bounder; @@ -203,7 +203,7 @@ _cairo_path_fixed_approximate_clip_extents (cairo_path_fixed_t *path, * Bezier, but we continue to ignore winding. */ void -_cairo_path_fixed_approximate_fill_extents (cairo_path_fixed_t *path, +_cairo_path_fixed_approximate_fill_extents (const cairo_path_fixed_t *path, cairo_rectangle_int_t *extents) { cairo_path_bounder_t bounder; @@ -229,9 +229,37 @@ _cairo_path_fixed_approximate_fill_extents (cairo_path_fixed_t *path, _cairo_path_bounder_fini (&bounder); } +void +_cairo_path_fixed_fill_extents (const cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_rectangle_int_t *extents) +{ + cairo_path_bounder_t bounder; + cairo_status_t status; + + _cairo_path_bounder_init (&bounder); + + status = _cairo_path_fixed_interpret_flat (path, CAIRO_DIRECTION_FORWARD, + _cairo_path_bounder_move_to, + _cairo_path_bounder_line_to, + _cairo_path_bounder_close_path, + &bounder, tolerance); + assert (status == CAIRO_STATUS_SUCCESS); + + if (bounder.has_point) { + _cairo_box_round_to_rectangle (&bounder.extents, extents); + } else { + extents->x = extents->y = 0; + extents->width = extents->height = 0; + } + + _cairo_path_bounder_fini (&bounder); +} + /* Adjusts the fill extents (above) by the device-space pen. */ void -_cairo_path_fixed_approximate_stroke_extents (cairo_path_fixed_t *path, +_cairo_path_fixed_approximate_stroke_extents (const cairo_path_fixed_t *path, cairo_stroke_style_t *style, const cairo_matrix_t *ctm, cairo_rectangle_int_t *extents) @@ -268,8 +296,37 @@ _cairo_path_fixed_approximate_stroke_extents (cairo_path_fixed_t *path, _cairo_path_bounder_fini (&bounder); } +cairo_status_t +_cairo_path_fixed_stroke_extents (const cairo_path_fixed_t *path, + cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_rectangle_int_t *extents) +{ + cairo_traps_t traps; + cairo_box_t bbox; + cairo_status_t status; + + _cairo_traps_init (&traps); + + status = _cairo_path_fixed_stroke_to_traps (path, + stroke_style, + ctm, + ctm_inverse, + tolerance, + &traps); + + _cairo_traps_extents (&traps, &bbox); + _cairo_traps_fini (&traps); + + _cairo_box_round_to_rectangle (&bbox, extents); + + return status; +} + void -_cairo_path_fixed_bounds (cairo_path_fixed_t *path, +_cairo_path_fixed_bounds (const cairo_path_fixed_t *path, double *x1, double *y1, double *x2, double *y2) { |