comparison data/model/ImageModel.h @ 314:70a232b1f12a

* 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.

     
     long frame;
     QString image;
     QString label;
     
-    QString toXmlString(QString indent = "",
-			QString extraAttributes = "") const
+    void toXml(QTextStream &stream,
+               QString indent = "",
+               QString extraAttributes = "") const
     {
-	return QString("%1<point frame=\"%2\" image=\"%3\" label=\"%4\" %5/>\n")
+	stream <<
+            QString("%1<point frame=\"%2\" image=\"%3\" label=\"%4\" %5/>\n")
 	    .arg(indent).arg(frame)
             .arg(encodeEntities(image))
             .arg(encodeEntities(label))
             .arg(extraAttributes);
     }