aboutsummaryrefslogtreecommitdiff
path: root/common/config-manager.h
blob: 75e6ee644970a54aaa6d467cc389f6ea268c4a82 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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"
#include "common/hash-str.h"

namespace Common {

class WriteStream;
class SeekableReadStream;

/**
 * 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;

#ifdef ENABLE_KEYMAPPER
	/** The name of keymapper domain used to store the key maps */
	static const String kKeymapperDomain;
#endif

#else
	static const char *kApplicationDomain;
	static const char *kTransientDomain;

	const String _emptyString;

#ifdef ENABLE_KEYMAPPER
	/** The name of keymapper domain used to store the key maps */
	static const char *kKeymapperDomain;
#endif

#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()) const;
	bool				getBool(const String &key, const String &domName = String()) const;
	void				setInt(const String &key, int value, const String &domName = String());
	void				setBool(const String &key, bool value, const String &domName = String());


	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; }
	DomainMap &			getGameDomains() { return _gameDomains; }

private:
	friend class Singleton<SingletonBaseType>;
	ConfigManager();

	void			loadFromStream(SeekableReadStream &stream);
	void			writeDomain(WriteStream &stream, const String &name, const Domain &domain);

	Domain			_transientDomain;
	DomainMap		_gameDomains;
	Domain			_appDomain;
	Domain			_defaultsDomain;

#ifdef ENABLE_KEYMAPPER
	Domain			_keymapperDomain;
#endif

	StringList		_domainSaveOrder;

	String			_activeDomainName;
	Domain *		_activeDomain;

	String			_filename;
};

}	// End of namespace Common

/** Shortcut for accessing the configuration manager. */
#define ConfMan		Common::ConfigManager::instance()

#endif