move section handling to base component interface

do analysis in background thread

diylc/diylc-core/src/org/diylc/components/AbstractComponent.java

@@ -291,5 +291,11 @@ public abstract class AbstractComponent<T> implements IDIYComponent<T> {
   @Override
   public String getInternalLinkName(int index1, int index2) {   
     return null;
-  }
+  }
+  
+  @Override
+  public String getSectionName(int pointIndex) {   
+    return null;
+  }
+  
 }

diylc/diylc-core/src/org/diylc/core/IDIYComponent.java

@@ -24,7 +24,7 @@ package org.diylc.core;
 import java.awt.Graphics2D;
 import java.awt.Point;
 import java.io.Serializable;
-
+
 import org.diylc.core.annotations.ComponentDescriptor;
 import org.diylc.core.annotations.EditableProperty;
 
@@ -128,7 +128,13 @@ public interface IDIYComponent<T> extends Serializable {
    * @param index2
    * @return name of the internal linked formed by the two control points, null if they do not form an internal link
    */
-  String getInternalLinkName(int index1, int index2);
+  String getInternalLinkName(int index1, int index2);
+  
+  /**   
+   * @param pointIndex name of the internal section containing the specified point, or null if the component does not have internal sections. 
+   * @return
+   */
+  String getSectionName(int pointIndex);
 
   /**
    * Draws the component onto the {@link Graphics2D}.

diylc/diylc-core/src/org/diylc/netlist/Node.java

@@ -48,7 +48,8 @@ public class Node implements Comparable<Node> {
   }
   
   public String getDisplayName() {
-    return component.getControlPointNodeName(pointIndex);
+    String section = component.getSectionName(pointIndex);
+    return (section == null ? "" : section + ".") + component.getControlPointNodeName(pointIndex);
   }
 
   @Override