split out bounding box computation

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/grail-gestures.h b/src/grail-gestures.h
index e716757..edd641b 100644
--- a/src/grail-gestures.h
+++ b/src/grail-gestures.h
@@ -68,6 +68,8 @@ void gru_event(struct grail *ge, int gid,
 void gru_end(struct grail *ge, int gid,
              const struct move_model *move,
              const grail_prop_t *prop, int nprop);
+void gru_compute_bbox(struct grail_coord *min, struct grail_coord *max,
+                      const struct touch_frame *frame);
 
 struct combo_model {
         int active, gid;