Construct objects in XmlLabelParser atomically.

glabels/LabelModelObject.h

@@ -57,7 +57,20 @@ namespace glabels
 		///////////////////////////////////////////////////////////////
 	protected:
 		LabelModelObject();
+		
+		LabelModelObject( const Distance&  x0,
+		                  const Distance&  y0,
+		                  const Distance&  w,
+		                  const Distance&  h,
+		                  const QMatrix&   matrix = QMatrix(),
+		                  bool             shadowState = false,
+		                  const Distance&  shadowX = 0,
+		                  const Distance&  shadowY = 0,
+		                  double           shadowOpacity = 1.0,
+		                  const ColorNode& shadowColorNode = ColorNode() );
+		
 		LabelModelObject( const LabelModelObject* object );
+		
 	public:
 		~LabelModelObject() override;