comparison layer/WaveformLayer.h @ 316:c0b9eec70639

* Make XmlExportable::toXml the function that is universally overridden (and
  pure virtual) instead of toXmlString.  Tidies up some classes, notably the
  model classes, significantly.  Closes #1794561.

                                 float &value, QString &unit) const;
     
     virtual bool getYScaleDifference(const View *v, int y0, int y1,
                                      float &diff, QString &unit) const;
 
-    virtual QString toXmlString(QString indent = "",
-				QString extraAttributes = "") const;
+    virtual void toXml(QTextStream &stream, QString indent = "",
+                       QString extraAttributes = "") const;
 
     virtual void setProperties(const QXmlAttributes &attributes);
 
     virtual int getVerticalZoomSteps(int &defaultStep) const;
     virtual int getCurrentVerticalZoomStep() const;