Avoid empty "ptr" traits in the area tree.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_Accessibility@764926 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/layoutmgr/inline/BasicLinkLayoutManager.java

@@ -19,13 +19,14 @@
 
 package org.apache.fop.layoutmgr.inline;
 
+import org.apache.fop.area.LinkResolver;
+import org.apache.fop.area.Trait;
+import org.apache.fop.area.inline.InlineArea;
 import org.apache.fop.datatypes.URISpecification;
-import org.apache.fop.fo.flow.BasicLink;
 import org.apache.fop.fo.Constants;
+import org.apache.fop.fo.flow.BasicLink;
 import org.apache.fop.layoutmgr.PageSequenceLayoutManager;
-import org.apache.fop.area.inline.InlineArea;
-import org.apache.fop.area.Trait;
-import org.apache.fop.area.LinkResolver;
+import org.apache.fop.layoutmgr.TraitSetter;
 
 /**
  * LayoutManager for the fo:basic-link formatting object
@@ -56,7 +57,7 @@ public class BasicLinkLayoutManager extends InlineLayoutManager {
     private void setupBasicLinkArea(InlineArea area) {
         BasicLink fobj = (BasicLink) this.fobj;
         // internal destinations take precedence:
-        area.addTrait(Trait.PTR, fobj.getPtr());  // used for accessibility
+        TraitSetter.addPtr(area, fobj.getPtr()); // used for accessibility
         if (fobj.hasInternalDestination()) {
             String idref = fobj.getInternalDestination();
             PageSequenceLayoutManager pslm = getPSLM();

src/java/org/apache/fop/layoutmgr/inline/TextLayoutManager.java

@@ -506,7 +506,7 @@ public class TextLayoutManager extends LeafNodeLayoutManager {
         }
         TraitSetter.addFontTraits(textArea, font);
         textArea.addTrait(Trait.COLOR, this.foText.getColor());
-        textArea.addTrait(Trait.PTR, getPtr());  // used for accessibility
+        TraitSetter.addPtr(textArea, getPtr()); // used for accessibility
         TraitSetter.addTextDecoration(textArea, this.foText.getTextDecoration());
 
         return textArea;