2.5 - Keyframing Bugfixes + Code Cleanups

* DopeSheet + Graph Editor - 'Sample Keyframes' option now tags newly created keyframes as being breakdowns. Also moved reduced the code duplication here by moving the core code for this to the animation module.

* Keyframing (Standard/Auto) - Added proper 'replace' option
Keyframes can now be rekeyed non-destructively when the INSERTKEY_REPLACE flag is provided to the keyframing API functions, since this option will make sure that only the values of the handles get altered.

For the Auto-Keyframing 'Replace/Edit Keys' option, this means that it truly works as it describes now, since it will now only replace the values of the keyframes on the current frame, and won't create new keyframes in the process or destroy the tangents already created for those keys.

For things like the sliders in animation editors, keyframes changing the value won't destroy existing tangents.

1 files changed, 3 insertions, 2 deletions

diff --git a/source/blender/editors/include/ED_keyframing.h b/source/blender/editors/include/ED_keyframing.h
index 4bc24a0adeb..c492143751c 100644
--- a/source/blender/editors/include/ED_keyframing.h
+++ b/source/blender/editors/include/ED_keyframing.h
@@ -65,13 +65,14 @@ struct FCurve *verify_fcurve(struct bAction *act, const char group[], const char
  *	Use this when validation of necessary animation data isn't necessary as it already
  * 	exists, and there is a beztriple that can be directly copied into the array.
  */
-int insert_bezt_fcurve(struct FCurve *fcu, struct BezTriple *bezt);
+int insert_bezt_fcurve(struct FCurve *fcu, struct BezTriple *bezt, short flag);
 
 /* Main Keyframing API call: 
  *	Use this when validation of necessary animation data isn't necessary as it
  *	already exists. It will insert a keyframe using the current value being keyframed.
+ * 	Returns the index at which a keyframe was added (or -1 if failed)
  */
-void insert_vert_fcurve(struct FCurve *fcu, float x, float y, short flag);
+int insert_vert_fcurve(struct FCurve *fcu, float x, float y, short flag);
 
 /* -------- */