Fix crash when resetting axes

Selection label generation didn't account for case where category
axes are empty.

Change-Id: I3c41f14764f810b52c20c5fc8adce5f9d8dea4d5
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/examples/widget/chart.h b/examples/widget/chart.h
index 36766336..a4b6d78d 100644
--- a/examples/widget/chart.h
+++ b/examples/widget/chart.h
@@ -64,6 +64,7 @@ public:
     void restart(bool dynamicData);
     void selectBar();
     void swapAxis();
+    void releaseAxes();
 
 public slots:
     void changeShadowQuality(int quality);