test-Factory.C

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/*! @file
    @author 
    @copyright GNU Public License (GPL v3)
    @section License
    @verbatim
    // ////////////////////////////////////////////////////////////////////////
    //              The iLab Neuromorphic Robotics Toolkit (NRT)             //
    // Copyright 2010-2012 by the University of Southern California (USC)    //
    //                          and the iLab at USC.                         //
    //                                                                       //
    //                iLab - University of Southern California               //
    //                Hedco Neurociences Building, Room HNB-10               //
    //                    Los Angeles, Ca 90089-2520 - USA                   //
    //                                                                       //
    //      See http://ilab.usc.edu for information about this project.      //
    // ////////////////////////////////////////////////////////////////////////
    // This file is part of The iLab Neuromorphic Robotics Toolkit.          //
    //                                                                       //
    // The iLab Neuromorphic Robotics Toolkit is free software: you can      //
    // redistribute it and/or modify it under the terms of the GNU General   //
    // Public License as published by the Free Software Foundation, either   //
    // version 3 of the License, or (at your option) any later version.      //
    //                                                                       //
    // The iLab Neuromorphic Robotics Toolkit is distributed in the hope     //
    // that it will be useful, but WITHOUT ANY WARRANTY; without even the    //
    // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR       //
    // PURPOSE.  See the GNU General Public License for more details.        //
    //                                                                       //
    // You should have received a copy of the GNU General Public License     //
    // along with The iLab Neuromorphic Robotics Toolkit.  If not, see       //
    // <http://www.gnu.org/licenses/>.                                       //
    // ////////////////////////////////////////////////////////////////////////
    @endverbatim */



#include <nrt/Core/Design/Singleton.H>
#include <nrt/Core/Design/Factory.H>

// ######################################################################
class WidgetBase
{
  public:
    virtual void printName() {NRT_INFO("WidgetBase");}
};

typedef nrt::Factory<WidgetBase, std::string, std::function<std::shared_ptr<WidgetBase> ()> > WidgetFactory;

// ######################################################################
class SmartWidget : public WidgetBase
{
  public:
    SmartWidget() { NRT_INFO("Creating Smart Widget"); }
    void printName() {NRT_INFO("SmartWidget");}
};

std::shared_ptr<WidgetBase> createSmartWidget()
{ return std::shared_ptr<WidgetBase>(new SmartWidget); }

bool addSmartWidget()
{
  WidgetFactory::instance().registerType("smart", createSmartWidget);
  return true;
}
const bool smartWidgetAdded = addSmartWidget();

// ######################################################################
class DumbWidget : public WidgetBase
{
  public:
    DumbWidget() { NRT_INFO("Creating Dumb Widget"); }
    void printName() {NRT_INFO("DumbWidget");}
};

std::shared_ptr<WidgetBase> createDumbWidget()
{ return std::shared_ptr<WidgetBase>(new DumbWidget); }

bool addDumbWidget()
{
  WidgetFactory::instance().registerType("dumb", createDumbWidget);
  return true;
}
const bool dumbWidgetAdded = addDumbWidget();

int main()
{
  std::shared_ptr<WidgetBase> smartWid = WidgetFactory::instance().create("smart");
  smartWid->printName();
  std::shared_ptr<WidgetBase> dumbWid  = WidgetFactory::instance().create("dumb");
  dumbWid->printName();
  smartWid = smartWid;
  dumbWid = dumbWid;


  return 0;
}