From 6961daf29fe74947df260232fb82c0247629a9eb 2016-04-05 07:50:00
From: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>
Date: 2016-04-05 07:50:00
Subject: [PATCH] Fix crash when axis range is infinite.

Now instead print out a warning and ignore the invalid range.

Task-number: QTBUG-52320
Change-Id: I929f8f61eecaa23a0c61d143c5fa2e8431160d3f
Reviewed-by: Mika Salmela <mika.salmela@theqtcompany.com>
Reviewed-by: Tomi Korpipää <tomi.korpipaa@theqtcompany.com>
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

---

diff --git a/src/charts/axis/valueaxis/qvalueaxis.cpp b/src/charts/axis/valueaxis/qvalueaxis.cpp
index fec95fd..a8c2703 100644
--- a/src/charts/axis/valueaxis/qvalueaxis.cpp
+++ b/src/charts/axis/valueaxis/qvalueaxis.cpp
@@ -29,7 +29,7 @@
 #include <private/chartdataset_p.h>
 #include <private/chartpresenter_p.h>
 #include <private/charttheme_p.h>
-
+#include <private/charthelpers_p.h>
 
 QT_CHARTS_BEGIN_NAMESPACE
 /*!
@@ -382,6 +382,12 @@ void QValueAxisPrivate::setRange(qreal min, qreal max)
     if (min > max)
         return;
 
+    if (!isValidValue(min, max)) {
+        qWarning() << "Attempting to set invalid range for value axis: ["
+                   << min << " - " << max << "]";
+        return;
+    }
+
     bool changeMin = false;
     if (m_min == 0 || min == 0)
         changeMin = !qFuzzyCompare(1 + m_min, 1 + min);