From af72450afad9fef0adfc891347c5197dad14dbbb Mon Sep 17 00:00:00 2001
From: Konstantin Bulenkov <kb@jetbrains.com>
Date: Fri, 11 Nov 2011 10:06:42 +0100
Subject: [PATCH] show fqn in tooltip

---
 .../src/com/intellij/internal/psiView/PsiViewerDialog.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/platform/lang-impl/src/com/intellij/internal/psiView/PsiViewerDialog.java b/platform/lang-impl/src/com/intellij/internal/psiView/PsiViewerDialog.java
index 0ddd9911b863..5a5ed00e1d21 100644
--- a/platform/lang-impl/src/com/intellij/internal/psiView/PsiViewerDialog.java
+++ b/platform/lang-impl/src/com/intellij/internal/psiView/PsiViewerDialog.java
@@ -24,6 +24,7 @@ import com.intellij.formatting.Block;
 import com.intellij.formatting.FormattingModel;
 import com.intellij.formatting.FormattingModelBuilder;
 import com.intellij.ide.ui.ListCellRendererWrapper;
+import com.intellij.ide.util.treeView.NodeRenderer;
 import com.intellij.internal.psiView.formattingblocks.BlockTreeBuilder;
 import com.intellij.internal.psiView.formattingblocks.BlockTreeNode;
 import com.intellij.internal.psiView.formattingblocks.BlockTreeStructure;
@@ -261,6 +262,9 @@ public class PsiViewerDialog extends DialogWrapper implements DataProvider, Disp
           final Object userObject = ((DefaultMutableTreeNode)value).getUserObject();
           if (userObject instanceof ViewerNodeDescriptor) {
             final Object element = ((ViewerNodeDescriptor)userObject).getElement();
+            if (c instanceof NodeRenderer) {
+              ((NodeRenderer)c).setToolTipText(element == null ? null : element.getClass().getName());
+            }
             if ((element instanceof PsiElement && FileContextUtil.getFileContext(((PsiElement)element).getContainingFile()) != null) ||
                 element instanceof ViewerTreeStructure.Inject) {
               final TextAttributes attr = EditorColorsManager.getInstance().getGlobalScheme().getAttributes(EditorColors.INJECTED_LANGUAGE_FRAGMENT);