Jaye Evins
125 lines
2.7 KiB
C++
125 lines
2.7 KiB
C++
/* Factory.h
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*
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* Copyright (C) 2013-2014 Jaye Evins <evins@snaught.com>
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*
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* This file is part of glbarcode++.
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*
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* glbarcode++ is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* glbarcode++ is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with glbarcode++. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef glbarcode_Factory_h
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#define glbarcode_Factory_h
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#include "Barcode.h"
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#include <string>
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#include <map>
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#include "TypeIdList.h"
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namespace glbarcode
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{
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/**
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* @class Factory Factory.h glbarcode/Factory.h
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*
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* Singleton Barcode factory class.
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*/
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class Factory
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{
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public:
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/**
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* Barcode creation function signature.
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*/
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using BarcodeCreateFct = Barcode* (*)();
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private:
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/**
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* Barcode factory constructor
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*/
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Factory();
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public:
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/**
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* Initialize barcode factory.
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*
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* Initializes the barcode factory and registers all built-in Barcode types. It
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* is optional for an application to call init(), because glbarcode++ will automatically
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* initialize the factory on demand.
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*/
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static void init();
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/**
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* Create barcode based on type ID string.
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*
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* @param[in] typeId Barcode type ID string
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*/
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static Barcode* createBarcode( const std::string& typeId );
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/**
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* Register barcode type ID.
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*
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* @param[in] typeId Barcode type ID string
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* @param[in] fct Function to create barcode object of concrete Barcode class
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*/
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static void registerType( const std::string& typeId, BarcodeCreateFct fct );
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/**
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* Is barcode type supported?
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*
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* @param[in] typeId Barcode type ID string
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*/
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static bool isTypeSupported( const std::string& typeId );
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/**
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* Get list of supported types.
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*/
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static TypeIdList getSupportedTypes();
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private:
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/**
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* Internal register barcode type ID.
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*
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* @param[in] typeId Barcode type ID string
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* @param[in] fct Function to create barcode object of concrete Barcode class
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*/
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static void internalRegisterType( const std::string& typeId, BarcodeCreateFct fct );
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/**
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* Map barcode type strings to creation functions.
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*/
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using BarcodeTypeMap = std::map<std::string,BarcodeCreateFct>;
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static BarcodeTypeMap mBarcodeTypeMap;
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/**
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* Supported barcode types.
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*/
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static TypeIdList mSupportedTypes;
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};
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}
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#endif // glbarcode_Factory_h
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