Animato: Added 'experimental' grouping schemes for F-Curves

When inserting keyframes on previous un-animated Objects/bones, F-Curves will be added into Action Groups into either "Object Transform" or <PoseChannel Name>. Ob->Material settings are not grouped for now to illustrate what's possible.

Old files are currently not patched to use do this, as it's still not clear whether this will be ideal.   

1 files changed, 186 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/action.c b/source/blender/blenkernel/intern/action.c
index 72fd0259b89..4e66d5f0ab8 100644
--- a/source/blender/blenkernel/intern/action.c
+++ b/source/blender/blenkernel/intern/action.c
@@ -188,6 +188,192 @@ bAction *copy_action (bAction *src)
 }
 
 
+/* Get the active action-group for an Action */
+bActionGroup *get_active_actiongroup (bAction *act)
+{
+	bActionGroup *agrp= NULL;
+	
+	if (act && act->groups.first) {	
+		for (agrp= act->groups.first; agrp; agrp= agrp->next) {
+			if (agrp->flag & AGRP_ACTIVE)
+				break;
+		}
+	}
+	
+	return agrp;
+}
+
+/* Make the given Action-Group the active one */
+void set_active_action_group (bAction *act, bActionGroup *agrp, short select)
+{
+	bActionGroup *grp;
+	
+	/* sanity checks */
+	if (act == NULL)
+		return;
+	
+	/* Deactive all others */
+	for (grp= act->groups.first; grp; grp= grp->next) {
+		if ((grp==agrp) && (select))
+			grp->flag |= AGRP_ACTIVE;
+		else	
+			grp->flag &= ~AGRP_ACTIVE;
+	}
+}
+
+/* Add given channel into (active) group 
+ *	- assumes that channel is not linked to anything anymore
+ *	- always adds at the end of the group 
+ */
+void action_groups_add_channel (bAction *act, bActionGroup *agrp, FCurve *fcurve)
+{
+	FCurve *fcu;
+	short done=0;
+	
+	/* sanity checks */
+	if (ELEM3(NULL, act, agrp, fcurve))
+		return;
+	
+	/* if no channels, just add to two lists at the same time */
+	if (act->curves.first == NULL) {
+		fcurve->next = fcurve->prev = NULL;
+		
+		agrp->channels.first = agrp->channels.last = fcurve;
+		act->curves.first = act->curves.last = fcurve;
+		
+		fcurve->grp= agrp;
+		return;
+	}
+	
+	/* try to find a channel to slot this in before/after */
+	for (fcu= act->curves.first; fcu; fcu= fcu->next) {
+		/* if channel has no group, then we have ungrouped channels, which should always occur after groups */
+		if (fcu->grp == NULL) {
+			BLI_insertlinkbefore(&act->curves, fcu, fcurve);
+			
+			if (agrp->channels.first == NULL)
+				agrp->channels.first= fcurve;
+			agrp->channels.last= fcurve;
+			
+			done= 1;
+			break;
+		}
+		
+		/* if channel has group after current, we can now insert (otherwise we have gone too far) */
+		else if (fcu->grp == agrp->next) {
+			BLI_insertlinkbefore(&act->curves, fcu, fcurve);
+			
+			if (agrp->channels.first == NULL)
+				agrp->channels.first= fcurve;
+			agrp->channels.last= fcurve;
+			
+			done= 1;
+			break;
+		}
+		
+		/* if channel has group we're targeting, check whether it is the last one of these */
+		else if (fcu->grp == agrp) {
+			if ((fcu->next) && (fcu->next->grp != agrp)) {
+				BLI_insertlinkafter(&act->curves, fcu, fcurve);
+				agrp->channels.last= fcurve;
+				done= 1;
+				break;
+			}
+			else if (fcu->next == NULL) {
+				BLI_addtail(&act->curves, fcurve);
+				agrp->channels.last= fcurve;
+				done= 1;
+				break;
+			}
+		}
+		
+		/* if channel has group before target, check whether the next one is something after target */
+		else if (fcu->grp == agrp->prev) {
+			if (fcu->next) {
+				if ((fcu->next->grp != fcu->grp) && (fcu->next->grp != agrp)) {
+					BLI_insertlinkafter(&act->curves, fcu, fcurve);
+					
+					agrp->channels.first= fcurve;
+					agrp->channels.last= fcurve;
+					
+					done= 1;
+					break;
+				}
+			}
+			else {
+				BLI_insertlinkafter(&act->curves, fcu, fcurve);
+				
+				agrp->channels.first= fcurve;
+				agrp->channels.last= fcurve;
+				
+				done= 1;
+				break;
+			}
+		}
+	}
+	
+	/* only if added, set channel as belonging to this group */
+	if (done)
+		fcurve->grp= agrp;
+	else 
+		printf("Error: FCurve '%s' couldn't be added to Group '%s' \n", fcurve->rna_path, agrp->name);
+}	
+
+/* Remove the given channel from all groups */
+void action_groups_remove_channel (bAction *act, FCurve *fcu)
+{
+	/* sanity checks */
+	if (ELEM(NULL, act, fcu))	
+		return;
+	
+	/* check if any group used this directly */
+	if (fcu->grp) {
+		bActionGroup *agrp= fcu->grp;
+		
+		if (agrp->channels.first == agrp->channels.last) {
+			if (agrp->channels.first == fcu) {
+				agrp->channels.first= NULL;
+				agrp->channels.last= NULL;
+			}
+		}
+		else if (agrp->channels.first == fcu) {
+			if ((fcu->next) && (fcu->next->grp==agrp))
+				agrp->channels.first= fcu->next;
+			else
+				agrp->channels.first= NULL;
+		}
+		else if (agrp->channels.last == fcu) {
+			if ((fcu->prev) && (fcu->prev->grp==agrp))
+				agrp->channels.last= fcu->prev;
+			else
+				agrp->channels.last= NULL;
+		}
+		
+		fcu->grp= NULL;
+	}
+	
+	/* now just remove from list */
+	BLI_remlink(&act->curves, fcu);
+}
+
+/* Find a group with the given name */
+bActionGroup *action_groups_find_named (bAction *act, const char name[])
+{
+	bActionGroup *grp;
+	
+	/* sanity checks */
+	if (ELEM3(NULL, act, act->groups.first, name) || (name[0] == 0))
+		return NULL;
+		
+	/* do string comparisons */
+	for (grp= act->groups.first; grp; grp= grp->next) {
+		if (strcmp(grp->name, name) == 0)
+			return grp;
+	}
+	
+	/* not found */
+	return NULL;
+}
 
 /* ************************ Pose channels *************** */