Exposing a Qlist of Qlist from Qt to qml and Exposing functions from main.cpp to qml and Iterating Qlist in Qml

sruthihsr

Hi I Have the following class
@
class SourceSinkObj : public QObject
{
Q_OBJECT
Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
Q_PROPERTY(QString color READ color WRITE setColor NOTIFY colorChanged)
@

and

@
class ListofLists : public SourceSinkObj
{
Q_OBJECT
Q_PROPERTY(quint32 ident READ ident WRITE setident NOTIFY identChanged)
Q_PROPERTY( QList<SourceSinkObj*> sublist READ sublist WRITE setsublist NOTIFY sublistChanged)
@

in my Main .cpp i do the following

@
QList<ListofLists*> SinkMasterlist;

for (int i=0 ;i < listSinkClasses.size() ;i++)
{
am_SinkClass_s tempSinkClass;
tempSinkClass= listSinkClasses.at(i);
ListofLists* TempSinkMaster = new ListofLists();
quint32 TempID= tempSinkClass.SinkClassID;
TempSinkMaster->setident(TempID);
SinkMasterlist.append(TempSinkMaster);

}
@

and added the following to register metatypes

@
#ifndef REGISTER_METATYPES
#define REGISTER_METATYPES
qRegisterMetaType<ListofLists*>();
qRegisterMetaType<QList <ListofLists*> >(); \

#endif

Q_DECLARE_METATYPE(ListofLists*);
Q_DECLARE_METATYPE(QList<ListofLists*>);
@

When I try exposing the Qlist in main.pp I get a segmentation fault

@
ctxt->setContextProperty("SinkMasterlist", QVariant::fromValue(SinkMasterlist));
@

Please Help me with

correcting to avoid crash
2.How to expose functions in main to Qml. I am assuming I cannot use Q_Invokable in this case
3.How do I iterate through a Qlist in Qml
Thanks

[EDIT: fixed code formatting, Volker]

sruthihsr

I resolved the crash by QList<Qobject*> SinkMasterlist;.
help me resolve the rest