X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling.ui%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Fui%2FdiagramEditor%2FDiagramViewer.java;h=d7e66deb4ecc5ce590227f7a9709846d186acd12;hb=d4ae50a56473513bfa680c7ba8c0ac5786761abb;hp=000689309636911a54e8c2b3e6e15a9da4299a71;hpb=a18337dc03c999c2bda582822d53c10ebdd9a9ef;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewer.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewer.java
index 000689309..d7e66deb4 100644
--- a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewer.java
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramViewer.java
@@ -236,6 +236,7 @@ public class DiagramViewer
     protected GridSnapAdvisor            snapAdvisor;
 
     private RuntimeDiagramManager        runtimeDiagramManager;
+    private Resource                     runtimeDiagramResourceCache;
     private HasDiagramSourceListener     hasDiagramSourceListener;
 
     /**
@@ -245,11 +246,18 @@ public class DiagramViewer
      */
     protected WorkbenchSelectionProvider selectionProvider;
 
-    public Resource getRuntime() {
+    protected Resource getRuntimeFromManager() {
         RuntimeDiagramManager rtdm = runtimeDiagramManager;
         return (rtdm == null) ? null : rtdm.getRuntimeDiagram();
     }
 
+    public Resource getRuntime() {
+        if (runtimeDiagramResourceCache != null)
+            return runtimeDiagramResourceCache;
+        runtimeDiagramResourceCache = getRuntimeFromManager();
+        return runtimeDiagramResourceCache;
+    }
+
     public ParametrizedRead<IResourceEditorInput, Boolean> getInputValidator() {
         return INPUT_VALIDATOR;
     }