Performance optimizations for NatTableGraphExplorer

[simantics/platform.git] / bundles / org.simantics.browsing.ui.nattable / src / org / simantics / browsing / ui / nattable / TreeNode.java

diff --git a/bundles/org.simantics.browsing.ui.nattable/src/org/simantics/browsing/ui/nattable/TreeNode.java b/bundles/org.simantics.browsing.ui.nattable/src/org/simantics/browsing/ui/nattable/TreeNode.java
index ae7baa7c51715eb95cfa0c52658731e81a12b0d5..529d02f4916c3745ae9e6a56de4b51c296d0f425 100644 (file)
--- a/bundles/org.simantics.browsing.ui.nattable/src/org/simantics/browsing/ui/nattable/TreeNode.java
+++ b/bundles/org.simantics.browsing.ui.nattable/src/org/simantics/browsing/ui/nattable/TreeNode.java
@@ -114,24 +114,37 @@ public class TreeNode implements IAdaptable {
        Map<String, String> runtimeLabels;
        
        public String getValueString(int column) {
-               if (column == 0)
+               if (labels == null)
                        initData();
                if (labeler != null) {
                        String key = explorerContext.getGe().getColumns()[column].getKey();
-                       String s = null;
-                       if (runtimeLabels != null)
-                               s = runtimeLabels.get(key);
-                       if (s == null)
-                               s = labels.get(key);
-                       if (labelDecorators != null && !labelDecorators.isEmpty()) {
-                               int index = 0;
-                               for (LabelDecorator ld : labelDecorators) {
-                                       String ds = ld.decorateLabel(s, key, index);
-                                       if (ds != null)
-                                               s = ds;
-                               }
+                       return getValue(key);
+               }
+               return null;
+       }
+       
+       private String getValue(String key) {
+               String s = null;
+               if (runtimeLabels != null)
+                       s = runtimeLabels.get(key);
+               if (s == null)
+                       s = labels.get(key);
+               if (labelDecorators != null && !labelDecorators.isEmpty()) {
+                       int index = 0;
+                       for (LabelDecorator ld : labelDecorators) {
+                               String ds = ld.decorateLabel(s, key, index);
+                               if (ds != null)
+                                       s = ds;
                        }
-                       return s;
+               }
+               return s;
+       }
+       
+       public String getValueString(String key) {
+               if (labels == null)
+                       initData();
+               if (labeler != null) {
+                       return getValue(key);
                }
                return null;
        }
@@ -282,6 +295,25 @@ public class TreeNode implements IAdaptable {
                manager = null; 
        }
        
+       /**
+        * Fast dispose is used to wipe the whole tree.
+        * 
+        * ContextToNodeMap is cleared with one command, so we do not need to remove nodes one by one from the map.
+        */
+       public void fastDispose() {
+               if (DEBUG)      System.out.println("dispose " + this);
+               parent = null;
+               for (TreeNode n : children) {
+                       n.fastDispose();
+               }
+               clearCache();
+               children.clear();
+               context = null;
+               explorerContext = null;
+               manager.dispose();
+               manager = null; 
+       }
+       
        private void clearCache() {
                if (explorerContext != null) {
                        GECache2 cache = explorerContext.cache;