From 013f787caa88617e8bdba30e1730ecf03f17c3a7 Mon Sep 17 00:00:00 2001
From: Vassiliy <vassiliy.kudryashov@jetbrains.com>
Date: Wed, 30 Oct 2013 19:10:28 +0400
Subject: [PATCH] http://ea.jetbrains.com/browser/ea_problems/51445

---
 .../com/intellij/openapi/editor/impl/EditorMarkupModelImpl.java  | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorMarkupModelImpl.java b/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorMarkupModelImpl.java
index 03a72ec2cb37..b17dc292ca51 100644
--- a/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorMarkupModelImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorMarkupModelImpl.java
@@ -156,6 +156,7 @@ public class EditorMarkupModelImpl extends MarkupModelImpl implements EditorMark
   }
 
   private boolean showToolTipByMouseMove(final MouseEvent e) {
+    if (myEditor.getVisibleLineCount() == 0) return false;
     MouseEvent me = new MouseEvent(e.getComponent(), e.getID(), e.getWhen(), e.getModifiers(), 0, e.getY() + 1, e.getClickCount(),
                                               e.isPopupTrigger());