Fix #10956 (QgsSnapper crash/freeze/issues)

QgsMapSettings instance of QgsMapCanvas may have been prematurely deleted by SIP. The KeepReference annotation will force QgsMapCanvas wrapper to keep one more ref to it, so its reference count will not go to zero while map canvas is still alive.
qgis · Oct 20, 2014 · 43c4cd7 · 43c4cd7
1 parent 05157f8
commit 43c4cd7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/python/gui/qgsmapcanvas.sip b/python/gui/qgsmapcanvas.sip
@@ -58,7 +58,7 @@ class QgsMapCanvas : QGraphicsView
 
     //! Get access to properties used for map rendering
     //! @note added in 2.4
-    const QgsMapSettings& mapSettings() const;
+    const QgsMapSettings& mapSettings() const /KeepReference/;
 
     //! sets whether to use projections for this layer set
     //! @note added in 2.4