baselistener.hpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2014-2019 The ManaPlus Developers
 * Copyright (C) 2019-2021 Andrei Karas
 *
 * This file is part of The ManaPlus Client.
 *
 * This program 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 2 of the License, or
 * any later version.
 *
 * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef LISTENERS_BASELISTENER_HPP
#define LISTENERS_BASELISTENER_HPP
 
#include "utils/vector.h"
 
#define defineListener(name) \
 STD_VECTOR<name*> name::mListeners; \
 \
 name::name() \
 { \
 addListener(this); \
 } \
 \
 name::~name() \
 { \
 removeListener(this); \
 } \
 \
 void name::addListener(name *const listener) \
 { \
 if (listener) \
 mListeners.push_back(listener); \
 } \
 \
 void name::removeListener(const name *const listener) \
 { \
 STD_VECTOR<name*>::iterator it = mListeners.begin(); \
 while (it != mListeners.end()) \
 { \
 if (*it == listener) \
 it = mListeners.erase(it); \
 else \
 ++ it; \
 } \
 }
 
#define defineListenerHeader(name) \
 public: \
 name(); \
 \
 virtual ~name(); \
 \
 static void addListener(name *const listener); \
 \
 static void removeListener(const name *const listener); \
 \
 private: \
 static STD_VECTOR<name*> mListeners;
 
#endif // LISTENERS_BASELISTENER_HPP