RPCWrappers.hh

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#pragma once
 
 
#include <vector>
#include <QVariant>
#include <OpenFlipper/common/Types.hh>
 
 
namespace RPC {
 
//===========================================================================
//===========================================================================
 
DLLEXPORT
void callFunctionQVariant( const QString& _plugin, const QString& _functionName , const std::vector< QVariant >& _parameters , QGenericReturnArgument _returnArg = QGenericReturnArgument());
 
//===========================================================================
//===========================================================================
 
 
DLLEXPORT
void callFunction( QString _plugin, QString _functionName);
 
template <class... Ts>
void callFunction(QString _plugin, QString _functionName, Ts const&... args) {
 
 
    QGenericReturnArgument unused;
    std::vector<QVariant> parameters( { QVariant::fromValue( args ) ... } );
 
    callFunctionQVariant(_plugin,_functionName,parameters);
}
 
 
//===========================================================================
//===========================================================================
 
template <typename ReturnValue >
ReturnValue callFunctionValue( QString _plugin, QString _functionName) {
 
    // Intermediate storage for the return value as we have to pass it through the GenericReturnargument to hide the type
    ReturnValue tmpValue = 0;
 
    // Two variants of getting the type mapping for the Returnvalue:
    // 1. via qvariant (which is rather ugly
    //   QVariant::fromValue<ReturnValue>(tmpValue).typeName()
    // 2. via the metatype system (Does not seem to work!)
    //   QMetaType::fromType<ReturnValue>().name().data()
 
    // Return argument encapsulation for the final call to the function
    QGenericReturnArgument argument1 = QGenericReturnArgument(QVariant::fromValue<ReturnValue>(tmpValue).typeName(),&tmpValue);
 
    std::vector<QVariant> parameters;
 
    callFunctionQVariant(_plugin,_functionName,parameters,argument1);
 
    return tmpValue;
}
 
template <typename ReturnValue ,class... Ts>
ReturnValue callFunctionValue(QString _plugin, QString _functionName, Ts const&... args) {
 
    // Intermediate storage for the return value as we have to pass it through the GenericReturnargument to hide the type
    ReturnValue tmpValue = 0;
 
    // Return argument encapsulation for the final call to the function
    QGenericReturnArgument argument1 = QGenericReturnArgument(QVariant::fromValue<ReturnValue>(tmpValue).typeName(),&tmpValue);
 
    std::vector<QVariant> parameters( { QVariant::fromValue( args ) ... } );
 
    callFunctionQVariant(_plugin,_functionName,parameters,argument1);
 
    return tmpValue;
}
 
}