From 1b2eaac58a5a6a3fdd94a680c944a797cd9e61db Mon Sep 17 00:00:00 2001
From: Carlos Lopez <genetita@gmail.com>
Date: Wed, 1 Sep 2010 20:03:06 +0200
Subject: [PATCH] Add one extra parameter to Value Description (Scale) to allow
 distinguish tangent value nodes from BLine Points

---
 synfig-studio/src/gui/duckmatic.cpp      | 10 +++++-----
 synfig-studio/src/synfigapp/value_desc.h | 14 +++++++++++---
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/synfig-studio/src/gui/duckmatic.cpp b/synfig-studio/src/gui/duckmatic.cpp
index fe2d6a3..18c3d50 100644
--- a/synfig-studio/src/gui/duckmatic.cpp
+++ b/synfig-studio/src/gui/duckmatic.cpp
@@ -1614,7 +1614,7 @@ Duckmatic::add_to_ducks(const synfigapp::ValueDesc& value_desc,etl::handle<Canva
 				return false;
 			etl::handle<Duck> vertex_duck(last_duck());
 			vertex_duck->set_type(Duck::TYPE_VERTEX);
-			if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
+			if(!add_to_ducks(synfigapp::ValueDesc(value_node,4,-TANGENT_HANDLE_SCALE),canvas_view,transform_stack))
 				return false;
 			etl::handle<Duck> t1_duck(last_duck());
 
@@ -1627,7 +1627,7 @@ Duckmatic::add_to_ducks(const synfigapp::ValueDesc& value_desc,etl::handle<Canva
 			// If the tangents are split
 			if((*value_node->get_link("split"))(get_time()).get(bool()))
 			{
-				if(!add_to_ducks(synfigapp::ValueDesc(value_node,5),canvas_view,transform_stack))
+				if(!add_to_ducks(synfigapp::ValueDesc(value_node,5,TANGENT_HANDLE_SCALE),canvas_view,transform_stack))
 					return false;
 				t2_duck=last_duck();
 				t2_duck->set_origin(vertex_duck);
@@ -1636,7 +1636,7 @@ Duckmatic::add_to_ducks(const synfigapp::ValueDesc& value_desc,etl::handle<Canva
 			}
 			else
 			{
-				if(!add_to_ducks(synfigapp::ValueDesc(value_node,4),canvas_view,transform_stack))
+				if(!add_to_ducks(synfigapp::ValueDesc(value_node,4,TANGENT_HANDLE_SCALE),canvas_view,transform_stack))
 					return false;
 				t2_duck=last_duck();
 				t2_duck->set_origin(vertex_duck);
@@ -1791,7 +1791,7 @@ Duckmatic::add_to_ducks(const synfigapp::ValueDesc& value_desc,etl::handle<Canva
 					// Add the tangent1 duck
 					if(composite_vertex_value_node)
 					{
-						if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4),canvas_view,transform_stack))
+						if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,4,-TANGENT_BEZIER_SCALE),canvas_view,transform_stack))
 							return false;
 						tduck=last_duck();
 					}
@@ -1848,7 +1848,7 @@ Duckmatic::add_to_ducks(const synfigapp::ValueDesc& value_desc,etl::handle<Canva
 				if(composite_vertex_value_node)
 				{
 					int i=bline_point.get_split_tangent_flag()?5:4;
-					if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,i),canvas_view,transform_stack,0,2))
+					if(!add_to_ducks(synfigapp::ValueDesc(composite_vertex_value_node,i,TANGENT_BEZIER_SCALE),canvas_view,transform_stack,0,2))
 						return false;
 					tduck=last_duck();
 				}
diff --git a/synfig-studio/src/synfigapp/value_desc.h b/synfig-studio/src/synfigapp/value_desc.h
index 99b4604..621788c 100644
--- a/synfig-studio/src/synfigapp/value_desc.h
+++ b/synfig-studio/src/synfigapp/value_desc.h
@@ -59,6 +59,9 @@ class ValueDesc
 	// Info for exported ValueNode
 	synfig::Canvas::Handle canvas;
 
+	// Info for visual editon
+	synfig::Real scalar;
+
 public:
 	bool operator==(const ValueDesc &rhs)const
 	{
@@ -70,7 +73,9 @@ public:
 			return true;
 		if((canvas||rhs.canvas) && canvas!=rhs.canvas)
 			return false;
-		if((parent_value_node||rhs.parent_value_node) && parent_value_node!=rhs.parent_value_node)
+		if((parent_value_node||rhs.parent_value_node) && (parent_value_node!=rhs.parent_value_node))
+			return false;
+		if(scalar!=rhs.scalar)
 			return false;
 		if(index!=rhs.index)
 			return false;
@@ -90,9 +95,10 @@ public:
 		layer(layer),
 		name(param_name) { }
 
-	ValueDesc(synfig::LinkableValueNode::Handle parent_value_node,int index):
+	ValueDesc(synfig::LinkableValueNode::Handle parent_value_node,int index, synfig::Real s=1.12):
 		parent_value_node(parent_value_node),
-		index(index) { }
+		index(index),
+		scalar(s) { }
 
 //	ValueDesc(synfig::LinkableValueNode::Handle parent_value_node,const synfig::String& param_name):
 //		parent_value_node(parent_value_node),
@@ -131,6 +137,7 @@ public:
 
 	synfig::ValueNode::Handle get_parent_value_node()const { assert(parent_is_value_node()); return parent_value_node; }
 	int get_index()const { assert(parent_is_linkable_value_node()); return index; }
+	synfig::Real get_scalar()const { assert(parent_is_linkable_value_node()); return scalar; }
 	synfig::String get_name()const { assert(parent_is_linkable_value_node()); return (synfig::LinkableValueNode::Handle::cast_reinterpret(parent_value_node))->link_name(index); }
 	synfig::Time get_waypoint_time()const { assert(parent_is_waypoint()); return waypoint_time; }
 
@@ -194,6 +201,7 @@ public:
 
 	synfig::String
 	get_description(bool show_exported_name = true)const;
+
 }; // END of class ValueDesc
 
 }; // END of namespace synfigapp_instance
-- 
2.7.4