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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2006 The ScummVM project
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#ifndef COMMON_CONFIG_MANAGER_H
#define COMMON_CONFIG_MANAGER_H
#include "common/array.h"
//#include "common/config-file.h"
#include "common/hashmap.h"
#include "common/singleton.h"
#include "common/str.h"
namespace Common {
struct IgnoreCase_Less {
bool operator()(const String& x, const String& y) const { return scumm_stricmp(x.c_str(), y.c_str()) < 0; }
};
struct IgnoreCase_EqualTo {
bool operator()(const String& x, const String& y) const { return scumm_stricmp(x.c_str(), y.c_str()) == 0; }
};
struct IgnoreCase_Hash {
uint operator()(const String& x) const { return hashit_lower(x.c_str()); }
};
typedef HashMap<String, String, IgnoreCase_Hash, IgnoreCase_EqualTo> StringMap;
/**
* The (singleton) configuration manager, used to query & set configuration
* values using string keys.
*
* @todo Implement the callback based notification system (outlined below)
* which sends out notifications to interested parties whenever the value
* of some specific (or any) configuration key changes.
*/
class ConfigManager : public Singleton<ConfigManager> {
public:
class Domain : public StringMap {
private:
StringMap _keyValueComments;
String _domainComment;
public:
const String &get(const String &key) const;
void setDomainComment(const String &comment);
const String &getDomainComment() const;
void setKVComment(const String &key, const String &comment);
const String &getKVComment(const String &key) const;
bool hasKVComment(const String &key) const;
};
typedef HashMap<String, Domain, IgnoreCase_Hash, IgnoreCase_EqualTo> DomainMap;
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
/** The name of the application domain (normally 'scummvm'). */
static const String kApplicationDomain;
/** The transient (pseudo) domain. */
static const String kTransientDomain;
#else
static const char *kApplicationDomain;
static const char *kTransientDomain;
const String _emptyString;
#endif
void loadDefaultConfigFile();
void loadConfigFile(const String &filename);
/**
* Retrieve the config domain with the given name.
* @param domName the name of the domain to retrieve
* @return pointer to the domain, or 0 if the domain doesn't exist.
*/
Domain * getDomain(const String &domName);
const Domain * getDomain(const String &domName) const;
//
// Generic access methods: No domain specified, use the values from the
// various domains in the order of their priority.
//
bool hasKey(const String &key) const;
const String & get(const String &key) const;
void set(const String &key, const String &value);
#if 1
//
// Domain specific access methods: Acces *one specific* domain and modify it.
// TODO: I'd like to get rid of most of those if possible, or at least reduce
// their usage, by using getDomain as often as possible. For example in the
// options dialog code...
//
bool hasKey(const String &key, const String &domName) const;
const String & get(const String &key, const String &domName) const;
void set(const String &key, const String &value, const String &domName);
void removeKey(const String &key, const String &domName);
#endif
//
// Some additional convenience accessors.
//
int getInt(const String &key, const String &domName = String::emptyString) const;
bool getBool(const String &key, const String &domName = String::emptyString) const;
void setInt(const String &key, int value, const String &domName = String::emptyString);
void setBool(const String &key, bool value, const String &domName = String::emptyString);
void registerDefault(const String &key, const String &value);
void registerDefault(const String &key, const char *value);
void registerDefault(const String &key, int value);
void registerDefault(const String &key, bool value);
void flushToDisk();
void setActiveDomain(const String &domName);
Domain * getActiveDomain() { return _activeDomain; }
const Domain * getActiveDomain() const { return _activeDomain; }
const String & getActiveDomainName() const { return _activeDomainName; }
void addGameDomain(const String &domName);
void removeGameDomain(const String &domName);
void renameGameDomain(const String &oldName, const String &newName);
bool hasGameDomain(const String &domName) const;
const DomainMap & getGameDomains() const { return _gameDomains; }
/*
TODO: Callback/change notification system
typedef void (*ConfigCallback)(const ConstString &key, void *refCon);
void registerCallback(ConfigCallback cfgc, void *refCon, const ConstString &key = String::emptyString)
void unregisterCallback(ConfigCallback cfgc, const ConstString &key = String::emptyString)
*/
private:
friend class Singleton<SingletonBaseType>;
ConfigManager();
void loadFile(const String &filename);
void writeDomain(FILE *file, const String &name, const Domain &domain);
Domain _transientDomain;
DomainMap _gameDomains;
Domain _appDomain;
Domain _defaultsDomain;
StringList _domainSaveOrder;
String _activeDomainName;
Domain * _activeDomain;
String _filename;
};
} // End of namespace Common
/** Shortcut for accessing the configuration manager. */
#define ConfMan Common::ConfigManager::instance()
#endif
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