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, 6 insertions, 2 deletions

diff --git a/source/blender/editors/space_graph/graph_select.c b/source/blender/editors/space_graph/graph_select.c
index ce036bec380..d0dcaf91e77 100644
--- a/source/blender/editors/space_graph/graph_select.c
+++ b/source/blender/editors/space_graph/graph_select.c
@@ -253,6 +253,8 @@ static void borderselect_graphkeys(bAnimContext *ac, rcti rect, short mode, shor
 	else
 		mapping_flag = ANIM_UNITCONV_ONLYKEYS;
 
+	mapping_flag |= ANIM_get_normalization_flags(ac);
+
 	/* loop over data, doing border select */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		AnimData *adt = ANIM_nla_mapping_get(ac, ale);
@@ -996,7 +998,8 @@ static void get_nearest_fcurve_verts_list(bAnimContext *ac, const int mval[2], L
 	
 	SpaceIpo *sipo = (SpaceIpo *)ac->sl;
 	View2D *v2d = &ac->ar->v2d;
-
+	short mapping_flag = 0;
+	
 	/* get curves to search through 
 	 *	- if the option to only show keyframes that belong to selected F-Curves is enabled,
 	 *	  include the 'only selected' flag...
@@ -1004,12 +1007,13 @@ static void get_nearest_fcurve_verts_list(bAnimContext *ac, const int mval[2], L
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_CURVE_VISIBLE | ANIMFILTER_NODUPLIS);
 	if (sipo->flag & SIPO_SELCUVERTSONLY)   // FIXME: this should really be check for by the filtering code...
 		filter |= ANIMFILTER_SEL;
+	mapping_flag |= ANIM_get_normalization_flags(ac);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
 	
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		FCurve *fcu = (FCurve *)ale->key_data;
 		AnimData *adt = ANIM_nla_mapping_get(ac, ale);
-		float unit_scale = ANIM_unit_mapping_get_factor(ac->scene, ale->id, fcu, 0);
+		float unit_scale = ANIM_unit_mapping_get_factor(ac->scene, ale->id, fcu, mapping_flag);
 
 		/* apply NLA mapping to all the keyframes */
 		if (adt)