1 files changed, 39 insertions, 3 deletions
diff --git a/src/com/jsyn/unitgen/Circuit.java b/src/com/jsyn/unitgen/Circuit.java
index a501600..c5a1dcf 100644
--- a/src/com/jsyn/unitgen/Circuit.java
+++ b/src/com/jsyn/unitgen/Circuit.java
@@ -4,9 +4,9 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -17,17 +17,21 @@
 package com.jsyn.unitgen;
 
 import java.util.ArrayList;
+import java.util.LinkedHashMap;
 
 import com.jsyn.engine.SynthesisEngine;
+import com.jsyn.ports.UnitPort;
 
 /**
  * Contains a list of units that are executed together.
- * 
+ *
  * @author Phil Burk (C) 2009 Mobileer Inc
  */
 public class Circuit extends UnitGenerator {
     private ArrayList<UnitGenerator> units = new ArrayList<UnitGenerator>();
 
+    private final LinkedHashMap<String, UnitPort> portAliases = new LinkedHashMap<String, UnitPort>();
+
     @Override
     public void generate(int start, int limit) {
         for (UnitGenerator unit : units) {
@@ -57,6 +61,11 @@ public class Circuit extends UnitGenerator {
         }
     }
 
+    /**
+     * @deprecated ignored, frameRate comes from the SynthesisEngine
+     * @param rate
+     */
+    @Deprecated
     @Override
     public void setFrameRate(int frameRate) {
         super.setFrameRate(frameRate);
@@ -83,4 +92,31 @@ public class Circuit extends UnitGenerator {
 
     public void usePreset(int presetIndex) {
     }
+
+
+    /**
+     * Add an alternate name for looking up a port.
+     * @param port
+     * @param alias
+     */
+    public void addPortAlias(UnitPort port, String alias) {
+        // Store in a hash table by an alternate name.
+        portAliases.put(alias.toLowerCase(), port);
+    }
+
+
+    /**
+     * Case-insensitive search for a port by its name or alias.
+     * @param portName
+     * @return matching port or null
+     */
+    @Override
+    public UnitPort getPortByName(String portName) {
+        UnitPort port = super.getPortByName(portName);
+        if (port == null) {
+            port = portAliases.get(portName.toLowerCase());
+        }
+        return port;
+    }
+
 }