From 29525db35714fb6f384f43ce9b0e504bf38383e5 Mon Sep 17 00:00:00 2001
From: ouv <oleg.uvarov@opencascade.com>
Date: Fri, 7 Apr 2017 12:05:10 +0300
Subject: [PATCH] USUL 0004209: External 622: Regression: tool-tips are not
 shown for "Chevelure" curves

---
 src/Plot2d/Plot2d_ToolTip.cxx | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/Plot2d/Plot2d_ToolTip.cxx b/src/Plot2d/Plot2d_ToolTip.cxx
index 1344edfb4..c0e28eac0 100644
--- a/src/Plot2d/Plot2d_ToolTip.cxx
+++ b/src/Plot2d/Plot2d_ToolTip.cxx
@@ -64,10 +64,19 @@ void Plot2d_ToolTip::onToolTip( QPoint p, QString& str, QFont& f, QRect& txtRect
     foreach(int j, aPnts)
     {
       aTxt = aCurves[i]->text( j );
-      if (!aTxt.isEmpty())
-      {
-        str += ("<p>" + aTxt + "</p>");
-      }
+      if( !aTxt.isEmpty() )
+        str += QString( "<p>%1</p>" ).arg( aTxt );
+    }
+  }
+
+  // Produce a tooltip containing titles of all found curves.
+  if( str.isEmpty() )
+  {
+    for(int i = 0; i < aCurves.length(); i++)
+    {
+      aTxt = aCurves[i]->getVerTitle();
+      if( !aTxt.isEmpty() )
+        str += QString( "<p>%1</p>" ).arg( aTxt );
     }
   }
 
-- 
2.39.2