SettingManager.h

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/*
Copyright (C) 2004 The Pentagram team

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 (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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#ifndef SETTINGMANAGER_H
#define SETTINGMANAGER_H

#include <string>
#include "istring.h"
#include <map>
#include <vector>

class ConfigFileManager;

class SettingManager
{
 public:
        SettingManager();
        ~SettingManager();

        static SettingManager* get_instance() { return settingmanager; }

        enum Domain {
                DOM_DEFAULTS = 0,
                DOM_GLOBAL   = 1,
                DOM_GAME     = 2,
                DOM_CURRENT  = 100
        };

        bool readConfigFile(std::string fname, bool readonly=false);

        void write();

        bool exists(Pentagram::istring key, Domain dom = DOM_CURRENT);

        bool get(Pentagram::istring key,std::string &ret,Domain dom = DOM_CURRENT);
        bool get(Pentagram::istring key, int &ret, Domain dom = DOM_CURRENT);
        bool get(Pentagram::istring key, bool &ret, Domain dom = DOM_CURRENT);

        void set(Pentagram::istring key,std::string value,Domain dom=DOM_CURRENT);
        void set(Pentagram::istring key,const char* value,Domain dom=DOM_CURRENT);
        void set(Pentagram::istring key, int value, Domain dom = DOM_CURRENT);
        void set(Pentagram::istring key, bool value, Domain dom = DOM_CURRENT);

        void unset(Pentagram::istring key, Domain dom = DOM_CURRENT);

        void setDefault(Pentagram::istring key, std::string value);
        void setDefault(Pentagram::istring key, const char* value);
        void setDefault(Pentagram::istring key, int value);
        void setDefault(Pentagram::istring key, bool value);

        void setCurrentDomain(Domain dom);
        void setDomainName(Domain dom, Pentagram::istring section);

        typedef void (*ConfigCallback)(Pentagram::istring key);

        void registerCallback(Pentagram::istring key, ConfigCallback callback);
        void unregisterCallback(Pentagram::istring key, ConfigCallback callback);

        std::vector<Pentagram::istring> listGames();

        std::vector<Pentagram::istring> listDataKeys(Pentagram::istring section);

        std::map<Pentagram::istring,std::string> listDataValues(
                Pentagram::istring section);

private:

        bool findKeyDomain(Pentagram::istring key, Domain dom, Domain& keydom);
        Pentagram::istring getConfigKey(Pentagram::istring key, Domain dom);
        void callCallbacks(Pentagram::istring key);

        std::map<Pentagram::istring, std::vector<ConfigCallback> > callbacks;
        std::vector<Pentagram::istring> domains;

        Domain currentDomain;

        ConfigFileManager* conffileman;

        static SettingManager* settingmanager;
};

#endif

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