From 5eb5ce9ed083c8778992f7a4866b6bf45e4ea806 2013-02-13 13:01:55
From: Miikka Heikkinen <miikka.heikkinen@digia.com>
Date: 2013-02-13 13:01:55
Subject: [PATCH] Fix crash when signals connected to deleted PieChartItem are emitted

Disconnect all signals connected to the PieChartItem when it is
destroyed.

Reviewed-by: Mika Salmela

---

diff --git a/src/piechart/piechartitem.cpp b/src/piechart/piechartitem.cpp
index 91b4c80..852fa81 100644
--- a/src/piechart/piechartitem.cpp
+++ b/src/piechart/piechartitem.cpp
@@ -58,6 +58,14 @@ PieChartItem::PieChartItem(QPieSeries *series, QGraphicsItem* item)
 PieChartItem::~PieChartItem()
 {
     // slices deleted automatically through QGraphicsItem
+    if (m_series) {
+        m_series->disconnect(this);
+        QPieSeriesPrivate::fromSeries(m_series)->disconnect(this);
+    }
+    foreach (QPieSlice *slice, m_sliceItems.keys()) {
+        slice->disconnect(this);
+        QPieSlicePrivate::fromSlice(slice)->disconnect(this);
+    }
 }
 
 void PieChartItem::setAnimation(PieAnimation *animation)