diff options
Diffstat (limited to 'src/cairo-region.c')
| -rw-r--r-- | src/cairo-region.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/src/cairo-region.c b/src/cairo-region.c index a2a7a825..55898d9c 100644 --- a/src/cairo-region.c +++ b/src/cairo-region.c @@ -178,6 +178,28 @@ cairo_region_subtract (cairo_region_t *dst, cairo_region_t *other) } cairo_status_t +cairo_region_subtract_rectangle (cairo_region_t *dst, + cairo_rectangle_int_t *rectangle) +{ + cairo_status_t status = CAIRO_STATUS_SUCCESS; + pixman_region32_t region; + + if (dst->status) + return dst->status; + + pixman_region32_init_rect (®ion, + rectangle->x, rectangle->y, + rectangle->width, rectangle->height); + + if (!pixman_region32_subtract (&dst->rgn, &dst->rgn, ®ion)) + status = cairo_region_set_error (dst, CAIRO_STATUS_NO_MEMORY); + + pixman_region32_fini (®ion); + + return status; +} + +cairo_status_t cairo_region_intersect (cairo_region_t *dst, cairo_region_t *other) { if (dst->status) @@ -193,6 +215,27 @@ cairo_region_intersect (cairo_region_t *dst, cairo_region_t *other) } cairo_status_t +cairo_region_intersect_rectangle (cairo_region_t *dst, + const cairo_rectangle_int_t *rect) +{ + cairo_status_t result = CAIRO_STATUS_SUCCESS; + pixman_region32_t region; + + if (dst->status) + return dst->status; + + pixman_region32_init_rect (®ion, + rect->x, rect->y, rect->width, rect->height); + + if (!pixman_region32_intersect (&dst->rgn, &dst->rgn, ®ion)) + result = _cairo_error (CAIRO_STATUS_NO_MEMORY); + + pixman_region32_fini (®ion); + + return result; +} + +cairo_status_t cairo_region_union (cairo_region_t *dst, cairo_region_t *other) { @@ -210,7 +253,7 @@ cairo_region_union (cairo_region_t *dst, cairo_status_t cairo_region_union_rectangle (cairo_region_t *dst, - cairo_rectangle_int_t *rect) + const cairo_rectangle_int_t *rect) { if (!pixman_region32_union_rect (&dst->rgn, &dst->rgn, rect->x, rect->y, |