From b3c3be84d629d56b355fc6bb8cee8ae16990d783 Mon Sep 17 00:00:00 2001
From: luukkainen <luukkainen@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Thu, 22 Jan 2009 16:12:03 +0000
Subject: [PATCH] git-svn-id:
 https://www.simantics.org/svn/simantics/3d/branches/dev@8819
 ac1ea38d-2e2b-0410-8846-a27921b304fc

---
 .../processeditor/monitors/PathContainer.java | 21 +++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/org.simantics.proconf.processeditor/src/org/simantics/processeditor/monitors/PathContainer.java b/org.simantics.proconf.processeditor/src/org/simantics/processeditor/monitors/PathContainer.java
index b0205f52..f41b4b1f 100644
--- a/org.simantics.proconf.processeditor/src/org/simantics/processeditor/monitors/PathContainer.java
+++ b/org.simantics.proconf.processeditor/src/org/simantics/processeditor/monitors/PathContainer.java
@@ -23,6 +23,7 @@ import org.simantics.utils.datastructures.MapList;
  * FIXME : singleton
  * TODO : removing paths
  * TODO : prevent adding same path multiple times
+ * TODO : how to handle multi-instances?
  * 
  * 
  * @author Marko Luukkainen
@@ -33,17 +34,29 @@ public class PathContainer {
 	private static PathContainer instance = new PathContainer();
 	
 	MapList<Resource, List<Resource>> paths;
+	//List<Pair<List<Resource>,List<Resource>>> multiInstancePaths;
 	
 	private PathContainer() {
 		paths = new MapList<Resource, List<Resource>>();
+		//multiInstancePaths = new ArrayList<Pair<List<Resource>,List<Resource>>>();
 	}
 	
 	public List<List<Resource>> getPaths(IEntity instance) {
 		Collection<IEntity> types = instance.getTypes();
-		if (types.size() != 1)
-			throw new UnsupportedOperationException("Multi-instances not supported!");
-		Resource type = types.iterator().next().getResource();
-		return paths.getValues(type);
+		if (types.size() != 1) {
+			// for multi-instances we check if any of the types have paths
+			// no we return paths for a single type (it is possible to combine paths for all types)
+			for (IEntity type : types) {
+				Resource r = type.getResource();
+				List<List<Resource>> path = paths.getValues(r);
+				if (path != null)
+					return path;
+			}
+			return null;
+		} else {
+			Resource type = types.iterator().next().getResource();
+			return paths.getValues(type);
+		}
 	}
 	
 	public void addPath(Resource type, List<Resource> path) {
-- 
2.45.2