Mobile: transform DiveObjectHelper into value-type

Instead of handing a reference-to-dive to QML, prerender all the needed
properties and store them as values in DiveObjectHelper. Exception:
 - date(): generated from timestamp
 - time(): generated from timestamp
 - cylinderList(): does not depend on dive anyway and should be made
   static.

This hopefully avoids the random mobile crashes that we are seeing.
Clearly, this code needs to be optimized, but it is a start.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

desktop-widgets/templatelayout.h

@@ -145,77 +145,77 @@ GRANTLEE_END_LOOKUP
 // exists. Remove in due course.
 GRANTLEE_BEGIN_LOOKUP(DiveObjectHelper)
 if (property == "number") {
-	return object.number();
+	return object.number;
 } else if (property == "id") {
-	return object.id();
+	return object.id;
 } else if (property == "rating") {
-	return object.rating();
+	return object.rating;
 } else if (property == "visibility") {
-	return object.visibility();
+	return object.visibility;
 } else if (property == "date") {
 	return object.date();
 } else if (property == "time") {
 	return object.time();
 } else if (property == "timestamp") {
-	return QVariant::fromValue(object.timestamp());
+	return QVariant::fromValue(object.timestamp);
 } else if (property == "location") {
-	return object.location();
+	return object.location;
 } else if (property == "gps") {
-	return object.gps();
+	return object.gps;
 } else if (property == "gps_decimal") {
-	return object.gps_decimal();
+	return object.gps_decimal;
 } else if (property == "dive_site") {
-	return object.dive_site();
+	return object.dive_site;
 } else if (property == "duration") {
-	return object.duration();
+	return object.duration;
 } else if (property == "noDive") {
-	return object.noDive();
+	return object.noDive;
 } else if (property == "depth") {
-	return object.depth();
+	return object.depth;
 } else if (property == "divemaster") {
-	return object.divemaster();
+	return object.divemaster;
 } else if (property == "buddy") {
-	return object.buddy();
+	return object.buddy;
 } else if (property == "airTemp") {
-	return object.airTemp();
+	return object.airTemp;
 } else if (property == "waterTemp") {
-	return object.waterTemp();
+	return object.waterTemp;
 } else if (property == "notes") {
-	return object.notes();
+	return object.notes;
 } else if (property == "tags") {
-	return object.tags();
+	return object.tags;
 } else if (property == "gas") {
-	return object.gas();
+	return object.gas;
 } else if (property == "sac") {
-	return object.sac();
+	return object.sac;
 } else if (property == "weightList") {
-	return object.weightList();
+	return object.weightList;
 } else if (property == "weights") {
-	return object.weights();
+	return object.weights;
 } else if (property == "singleWeight") {
-	return object.singleWeight();
+	return object.singleWeight;
 } else if (property == "suit") {
-	return object.suit();
+	return object.suit;
 } else if (property == "cylinderList") {
 	return object.cylinderList();
 } else if (property == "cylinders") {
-	return object.cylinders();
+	return object.cylinders;
 } else if (property == "cylinderObjects") {
-	return QVariant::fromValue(object.cylinderObjects());
+	return QVariant::fromValue(object.cylinderObjects);
 } else if (property == "maxcns") {
-	return object.maxcns();
+	return object.maxcns;
 } else if (property == "otu") {
-	return object.otu();
+	return object.otu;
 } else if (property == "sumWeight") {
-	return object.sumWeight();
+	return object.sumWeight;
 } else if (property == "getCylinder") {
-	return object.getCylinder();
+	return object.getCylinder;
 } else if (property == "startPressure") {
-	return object.startPressure();
+	return object.startPressure;
 } else if (property == "endPressure") {
-	return object.endPressure();
+	return object.endPressure;
 } else if (property == "firstGas") {
-	return object.firstGas();
+	return object.firstGas;
 }
 GRANTLEE_END_LOOKUP
 #endif