SL-374 - don't allow sliders to modify joint positions if there's already a...

SL-374 - don't allow sliders to modify joint positions if there's already a mesh-imposed override in place.

indra/llappearance/llpolyskeletaldistortion.cpp

@@ -226,7 +226,8 @@ void LLPolySkeletalDistortion::apply( ESex avatar_sex )
                 LLVector3 positionDelta = iter->second;				
                 newPosition = newPosition + (effective_weight * positionDelta) - (mLastWeight * positionDelta);		
                 // SL-315
-                joint->setPosition(newPosition);
+                // BENTO - allow attachment positions to override requests from the params.
+                joint->setPosition(newPosition, true);
         }
 
         if (mLastWeight != mCurWeight && !mIsAnimating)

indra/llcharacter/lljoint.cpp

@@ -336,8 +336,22 @@ bool do_debug_joint(const std::string& name)
 //--------------------------------------------------------------------
 // setPosition()
 //--------------------------------------------------------------------
-void LLJoint::setPosition( const LLVector3& pos )
+void LLJoint::setPosition( const LLVector3& requested_pos, bool apply_attachment_overrides )
 {
+    LLVector3 pos(requested_pos);
+
+    LLVector3 active_override;
+    LLUUID mesh_id;
+    if (apply_attachment_overrides && m_attachmentOverrides.findActiveOverride(mesh_id,active_override))
+    {  
+        if (pos != active_override && do_debug_joint(getName()))
+        {
+            LLScopedContextString str("setPosition");
+            LL_DEBUGS("Avatar") << " joint " << getName() << " requested_pos " << requested_pos
+                                << " overriden by attachment " << active_override << LL_ENDL;
+        }
+        pos = active_override;
+    }
 	if ((pos != getPosition()) && do_debug_joint(getName()))
 	{
         LLScopedContextString str("setPosition");

indra/llcharacter/lljoint.h

@@ -209,7 +209,7 @@ class LLJoint
 
 	// get/set local position
 	const LLVector3& getPosition();
-	void setPosition( const LLVector3& pos );
+	void setPosition( const LLVector3& pos, bool apply_attachment_overrides = false );
 
     // Tracks the default position defined by the skeleton
 	void setDefaultPosition( const LLVector3& pos );