Define Layer::get_non_empty_description() which returns the layer's description if...

[synfig.git] / synfig-core / trunk / src / synfig / valuenode_reference.cpp

diff --git a/synfig-core/trunk/src/synfig/valuenode_reference.cpp b/synfig-core/trunk/src/synfig/valuenode_reference.cpp
index 84aa107..aa5dacc 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_reference.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode_reference.cpp
@@ -1,8 +1,8 @@
 /* === S Y N F I G ========================================================= */
 /*!    \file valuenode_reference.cpp
-**     \brief Template File
+**     \brief Implementation of the "Reference" valuenode conversion.
 **
-**     $Id: valuenode_reference.cpp,v 1.1.1.1 2005/01/04 01:23:15 darco Exp $
+**     $Id$
 **
 **     \legal
 **     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
@@ -80,7 +80,8 @@ ValueNode_Reference::~ValueNode_Reference()
 bool
 ValueNode_Reference::set_link_vfunc(int i,ValueNode::Handle x)
 {
-       assert(i==0);
+       assert(i>=0 && i<link_count());
+
        if(x->get_type()!=get_type() && !PlaceholderValueNode::Handle::cast_dynamic(x))
                return false;
        link_=x;
@@ -91,7 +92,8 @@ ValueNode_Reference::set_link_vfunc(int i,ValueNode::Handle x)
 ValueNode::LooseHandle
 ValueNode_Reference::get_link_vfunc(int i)const
 {
-       assert(i==0);
+       assert(i>=0 && i<link_count());
+
        return link_;
 }
 
@@ -104,14 +106,25 @@ ValueNode_Reference::link_count()const
 String
 ValueNode_Reference::link_local_name(int i)const
 {
-       assert(i==0);
-       return _("Link");
+       assert(i>=0 && i<link_count());
+
+       switch(i)
+       {
+       case 0: return _("Link");
+       }
+       return String();
 }
 
 String
 ValueNode_Reference::link_name(int i)const
 {
-       return "link";
+       assert(i>=0 && i<link_count());
+
+       switch(i)
+       {
+       case 0: return "link";
+       }
+       return String();
 }
 
 int