From dc8877eb6ad89f991a69f335cd51741fcf117e0e Mon Sep 17 00:00:00 2001
From: Sean Rhea <sean.c.rhea@gmail.com>
Date: Sun, 6 Sep 2009 14:13:31 -0400
Subject: [PATCH] turn off tooltips in PowerHist

With some versions of Qt/Qwt, tooltips cause an infinite recursion.  We don't
know why this happens yet, but this patch at least prevents crashes while we
figure it out.
---
 src/PowerHist.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/PowerHist.cpp b/src/PowerHist.cpp
index f764ca2a8..711e82500 100644
--- a/src/PowerHist.cpp
+++ b/src/PowerHist.cpp
@@ -38,7 +38,10 @@ class penTooltip: public QwtPlotZoomer
          penTooltip(QwtPlotCanvas *canvas):
              QwtPlotZoomer(canvas)
          {
-                 setTrackerMode(AlwaysOn);
+                 // With some versions of Qt/Qwt, setting this to AlwaysOn
+                 // causes an infinite recursion.
+                 //setTrackerMode(AlwaysOn);
+                 setTrackerMode(AlwaysOff);
          }
     
          virtual QwtText trackerText(const QwtDoublePoint &pos) const