1 /* ScummVM - Graphic Adventure Engine
2  *
3  * ScummVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the COPYRIGHT
5  * file distributed with this source distribution.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef PARALLACTION_GUI_H
24 #define PARALLACTION_GUI_H
25 
26 #include "common/system.h"
27 #include "common/hashmap.h"
28 
29 #include "parallaction/input.h"
30 #include "parallaction/parallaction.h"
31 #include "parallaction/sound.h"
32 
33 
34 namespace Parallaction {
35 
36 class MenuInputState;
37 
38 class MenuInputHelper {
39 	typedef	Common::HashMap<Common::String, MenuInputState *> StateMap;
40 
41 	StateMap	_map;
42 	MenuInputState	*_state;
43 	MenuInputState *_newState;
44 
45 public:
MenuInputHelper()46 	MenuInputHelper() : _state(0), _newState(0) {
47 	}
48 
49 	~MenuInputHelper();
50 
setState(const Common::String & name)51 	void setState(const Common::String &name) {
52 		// bootstrap routine
53 		_newState = getState(name);
54 		assert(_newState);
55 	}
56 
addState(const Common::String & name,MenuInputState * state)57 	void addState(const Common::String &name, MenuInputState *state) {
58 		_map.setVal(name, state);
59 	}
60 
getState(const Common::String & name)61 	MenuInputState *getState(const Common::String &name) {
62 		return _map[name];
63 	}
64 
65 	bool run();
66 };
67 
68 class MenuInputState {
69 
70 protected:
71 	MenuInputHelper *_helper;
72 
73 public:
MenuInputState(const Common::String & name,MenuInputHelper * helper)74 	MenuInputState(const Common::String &name, MenuInputHelper *helper) : _helper(helper), _name(name) {
75 		debugC(3, kDebugExec, "MenuInputState(%s)", name.c_str());
76 		_helper->addState(name, this);
77 	}
78 
79 	Common::String	_name;
80 
~MenuInputState()81 	virtual ~MenuInputState() { }
82 
83 	virtual MenuInputState* run() = 0;
84 	virtual void enter() = 0;
85 };
86 
87 
88 } // namespace Parallaction
89 
90 #endif
91