missing const ref

src/gui/qgsdatumtransformdialog.cpp

@@ -268,15 +268,15 @@ void QgsDatumTransformDialog::mDatumTransformTreeWidget_currentItemChanged( QTre
   setOKButtonEnabled();
 }
 
-void QgsDatumTransformDialog::setSourceCrs( QgsCoordinateReferenceSystem sourceCrs )
+void QgsDatumTransformDialog::setSourceCrs( const QgsCoordinateReferenceSystem &sourceCrs )
 {
   mSourceCrs = sourceCrs;
   mDatumTransforms = QgsCoordinateTransform::datumTransformations( mSourceCrs, mDestinationCrs );
   load();
   setOKButtonEnabled();
 }
 
-void QgsDatumTransformDialog::setDestinationCrs( QgsCoordinateReferenceSystem destinationCrs )
+void QgsDatumTransformDialog::setDestinationCrs( const QgsCoordinateReferenceSystem &destinationCrs )
 {
   mDestinationCrs = destinationCrs;
   mDatumTransforms = QgsCoordinateTransform::datumTransformations( mSourceCrs, mDestinationCrs );

src/gui/qgsdatumtransformdialog.h

@@ -59,8 +59,8 @@ class GUI_EXPORT QgsDatumTransformDialog : public QDialog, private Ui::QgsDatumT
   private slots:
     void mHideDeprecatedCheckBox_stateChanged( int state );
     void mDatumTransformTreeWidget_currentItemChanged( QTreeWidgetItem *, QTreeWidgetItem * );
-    void setSourceCrs( QgsCoordinateReferenceSystem sourceCrs );
-    void setDestinationCrs( QgsCoordinateReferenceSystem destinationCrs );
+    void setSourceCrs( const QgsCoordinateReferenceSystem &sourceCrs );
+    void setDestinationCrs( const QgsCoordinateReferenceSystem &destinationCrs );
 
   private:
     bool gridShiftTransformation( const QString &itemText ) const;