bars2symfactory.cpp

barcode readers [ from Image]

//
// CBars2SymFactory
//   Provide access to all the CBars2Sym decoders
//
// Copyright (C) 2006 by Jon A. Webb
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library 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
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
//

#include "Bars2SymFactory.h"

//#include "Bars2SymEan.h"
#include "Bars2SymUpc.h"

using namespace Barcode;

CBars2SymFactory::CBars2SymFactory() :
    iCurrent(0),
	iDecoders(NULL)
	{}

EXPORT_C CBars2SymFactory* CBars2SymFactory::NewL()
	{
		CBars2SymFactory* pMe = new (ELeave) CBars2SymFactory;
		CleanupStack::PushL(pMe);
		pMe->ConstructL();
		CleanupStack::Pop(pMe);
		return pMe;
	}

void CBars2SymFactory::ConstructL()
{
	iDecoders = new (ELeave) RArray<CBars2Sym*>(3);
	iDecoders->Append(CBars2SymUpc::NewL());
}

CBars2SymFactory::~CBars2SymFactory(void)
{
		int i;
		for (i=0; i<iDecoders->Count(); i++) {
			delete (*iDecoders)[i];
			(*iDecoders)[i] = NULL;
		}
		iDecoders->Reset();
		delete iDecoders;
		iDecoders = NULL;
}

void CBars2SymFactory::Reset()
{
	iCurrent = 0;
}

CBars2Sym* CBars2SymFactory::Next()
{
	if (iCurrent < iDecoders->Count()) {
        return (*iDecoders)[iCurrent++];
	} else {
		return NULL;
	}
}

int CBars2SymFactory::Count() const
{
	return iDecoders->Count();
}