Code Cleanup: Separate out the logic for stashing actions into a separate function

1 files changed, 37 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/nla.c b/source/blender/blenkernel/intern/nla.c
index f117dcfe0ff..060a9d4b9c7 100644
--- a/source/blender/blenkernel/intern/nla.c
+++ b/source/blender/blenkernel/intern/nla.c
@@ -1575,6 +1575,43 @@ void BKE_nla_action_pushdown(AnimData *adt)
 	}
 }
 
+/* "Stash" an action (i.e. store it as a track/layer in the NLA, but non-contributing)
+ * to retain it in the file for future uses
+ */
+bool BKE_nla_action_stash(AnimData *adt)
+{
+	const char *STASH_TRACK_NAME = DATA_("[Action Stash]");
+	
+	NlaTrack *prev_track = NULL;
+	NlaTrack *nlt;
+	NlaStrip *strip;
+	
+	/* create a new track, and add this immediately above the previous stashing track */
+	for (prev_track = adt->nla_tracks.last; prev_track; prev_track = prev_track->prev) {
+		if (strstr(prev_track->name, STASH_TRACK_NAME)) {
+			break;
+		}
+	}
+	
+	nlt = add_nlatrack(adt, prev_track);
+	nlt->flag |= NLATRACK_MUTED; /* so that stash track doesn't disturb the stack animation */
+	
+	BLI_strncpy(nlt->name, STASH_TRACK_NAME, sizeof(nlt->name));
+	BLI_uniquename(&adt->nla_tracks, nlt, STASH_TRACK_NAME, '.', offsetof(NlaTrack, name), sizeof(nlt->name));
+	
+	/* add the action as a strip in this new track
+	 * NOTE: a new user is created here
+	 */
+	strip = add_nlastrip(adt->action);
+	
+	BKE_nlatrack_add_strip(nlt, strip);
+	BKE_nlastrip_validate_name(adt, strip);
+	BKE_nlastrip_set_active(adt, strip);
+	
+	/* succeeded */
+	return true;
+}
+
 
 /* Find the active strip + track combo, and set them up as the tweaking track,
  * and return if successful or not.