Settings.h

/* Settings.h */
 
/* Copyright (C) 2011-2020 Michael Lugmair (Lucio Carreras)
 *
 * This file is part of sayonara player
 *
 * 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 3 of the License, or
 * (at your option) 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/>.
 */
#pragma once
#ifndef SAYONARA_SETTINGS_H_
#define SAYONARA_SETTINGS_H_
 
#include "Utils/Settings/SettingKey.h"
#include "Utils/Settings/Setting.h"
#include "Utils/Settings/SettingNotifier.h"
#include "Utils/Singleton.h"
 
#include <array>
 
#define GetSetting(x) Settings::instance()->get<x>()
#define SetSetting(x, y) Settings::instance()->set<x>(y)
#define ListenSetting(x, y) Set::listen<x>(this, &y)
#define ListenSettingNoCall(x, y) Set::listen<x>(this, &y, false)
 
using SettingArray=std::array<AbstrSetting*, static_cast<unsigned int>(SettingKey::Num_Setting_Keys)>;
 
class Settings
{
    SINGLETON(Settings)
    PIMPL(Settings)
 
    public:
        AbstrSetting* setting(SettingKey keyIndex) const;
 
        /* get all settings (used by database) */
        const SettingArray& settings();
 
        /* before you want to access a setting you have to register it */
        void registerSetting(AbstrSetting* s);
 
        /* checks if all settings are registered */
        bool checkSettings();
 
        /* get a setting, defined by a unique, REGISTERED key */
        template<typename KeyClass>
        const typename KeyClass::Data& get() const
        {
            using SettingPtr=Setting<KeyClass>*;
            SettingPtr s = static_cast<SettingPtr>( setting(KeyClass::key) );
            return s->value();
        }
 
        /* set a setting, define by a unique, REGISTERED key */
        template<typename KeyClass>
        void set(const typename KeyClass::Data& val)
        {
            using SettingPtr=Setting<KeyClass>*;
            SettingPtr s = static_cast<SettingPtr>( setting(KeyClass::key) );
 
            if( s->assignValue(val))
            {
                SettingNotifier< KeyClass >* sn = SettingNotifier< KeyClass >::instance();
                sn->valueChanged();
            }
        }
 
        /* get a setting, defined by a unique, REGISTERED key */
        template<typename KeyClass>
        void shout() const
        {
            SettingNotifier<KeyClass >* sn = SettingNotifier< KeyClass >::instance();
            sn->valueChanged();
        }
 
        void applyFixes();
};
 
 
#endif // SAYONARA_SETTINGS_H_