Project Pampa request: FCurves normalized display

Added two options to a header of FCurve editor:

- Normalize which makes it so every individual
  curve is fit into -1..1 space.

- Auto-normalize, which probably is to be called
  "Lock" which "locks" curve normalization scale.
  This is useful to prevent curves from jumping
  around when tweaking it.

It's debatable whether it need to be a button to
normalize curves n purpose only, and it's fully
depends on animator's workflow.

Here during Project Pampa we've got Francesco
who get used to auto-renormalization and Hjalti
who prefers locked behavior.

Docs are to be ready soon by Francesco.
Thanks Brecht for the review!

1 files changed, 9 insertions, 4 deletions

diff --git a/source/blender/editors/transform/transform_conversions.c b/source/blender/editors/transform/transform_conversions.c
index 41d04c85f44..573c4f15657 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -3714,12 +3714,14 @@ static void createTransGraphEditData(bContext *C, TransInfo *t)
 	float mtx[3][3], smtx[3][3];
 	const bool use_handle = !(sipo->flag & SIPO_NOHANDLES);
 	const bool use_local_center = checkUseLocalCenter_GraphEdit(t);
-	const short anim_map_flag = ANIM_UNITCONV_ONLYSEL | ANIM_UNITCONV_SELVERTS;
+	short anim_map_flag = ANIM_UNITCONV_ONLYSEL | ANIM_UNITCONV_SELVERTS;
 	
 	/* determine what type of data we are operating on */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return;
-	
+
+	anim_map_flag |= ANIM_get_normalization_flags(&ac);
+
 	/* filter data */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_FOREDIT | ANIMFILTER_CURVE_VISIBLE);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
@@ -3854,8 +3856,8 @@ static void createTransGraphEditData(bContext *C, TransInfo *t)
 
 		copy_m3_m3(scaled_mtx, mtx);
 		copy_m3_m3(scaled_smtx, smtx);
-		mul_v3_fl(scaled_mtx[1], 1.0f / unit_scale);
-		mul_v3_fl(scaled_smtx[1],  unit_scale);
+		mul_v3_fl(scaled_mtx[1], unit_scale);
+		mul_v3_fl(scaled_smtx[1],  1.0f / unit_scale);
 
 		/* only include BezTriples whose 'keyframe' occurs on the same side of the current frame as mouse (if applicable) */
 		for (i = 0, bezt = fcu->bezt; i < fcu->totvert; i++, bezt++) {
@@ -5861,6 +5863,9 @@ int special_transform_moving(TransInfo *t)
 	if (t->spacetype == SPACE_SEQ) {
 		return G_TRANSFORM_SEQ;
 	}
+	else if (t->spacetype == SPACE_IPO) {
+		return G_TRANSFORM_FCURVES;
+	}
 	else if (t->obedit || ((t->flag & T_POSE) && (t->poseobj))) {
 		return G_TRANSFORM_EDIT;
 	}