Send double parameters with full precision

Sometimes doubles must be transferred with more digits than the Qt
default of 6. This increases the number of transmitted digits to the
maximum reasonable value (DBL_DIG).

Author: olafmandel

maiaObject.cpp

@@ -27,6 +27,7 @@
  */
 
 #include "maiaObject.h"
+#include <cfloat>
 
 MaiaObject::MaiaObject(QObject* parent) : QObject(parent){
 	QDomImplementation::setInvalidDataPolicy(QDomImplementation::DropInvalidChars);
@@ -63,7 +64,7 @@ QDomElement MaiaObject::toXml(QVariant arg) {
 	} case QVariant::Double: {
 
 		QDomElement tagDouble = doc.createElement("double"); 
-		QDomText textDouble = doc.createTextNode(QString::number(arg.toDouble()));
+		QDomText textDouble = doc.createTextNode(QString::number(arg.toDouble(), 'g', DBL_DIG));
 
 		tagValue.appendChild(tagDouble);
 		tagDouble.appendChild(textDouble);