diff options
Diffstat (limited to 'src/cairo-rectangle.c')
| -rw-r--r-- | src/cairo-rectangle.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/cairo-rectangle.c b/src/cairo-rectangle.c index b1396248..e887c751 100644 --- a/src/cairo-rectangle.c +++ b/src/cairo-rectangle.c @@ -71,6 +71,29 @@ _cairo_box_from_rectangle (cairo_box_t *box, box->p2.y = _cairo_fixed_from_int (rect->y + rect->height); } +void +_cairo_boxes_get_extents (const cairo_box_t *boxes, + int num_boxes, + cairo_box_t *extents) +{ + int n; + + assert (num_boxes > 0); + *extents = *boxes; + + for (n = 1; n < num_boxes; n++) { + if (boxes[n].p1.x < extents->p1.x) + extents->p1.x = boxes[n].p1.x; + if (boxes[n].p2.x > extents->p2.x) + extents->p2.x = boxes[n].p2.x; + + if (boxes[n].p1.y < extents->p1.y) + extents->p1.y = boxes[n].p1.y; + if (boxes[n].p2.y > extents->p2.y) + extents->p2.y = boxes[n].p2.y; + } +} + /* XXX We currently have a confusing mix of boxes and rectangles as * exemplified by this function. A #cairo_box_t is a rectangular area * represented by the coordinates of the upper left and lower right |