aboutsummaryrefslogtreecommitdiff
path: root/backends/keymapper/hardware-input.h
blob: 064d7e9da0409e1834bf296ae0fdfe295782e152 (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
/* 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.
 *
 */

#ifndef COMMON_HARDWARE_KEY_H
#define COMMON_HARDWARE_KEY_H

#include "common/scummsys.h"

#ifdef ENABLE_KEYMAPPER

#include "common/keyboard.h"
#include "common/list.h"
#include "common/str.h"
#include "common/textconsole.h"

namespace Common {

typedef uint32 HardwareInputCode;

enum HardwareInputType {
	/** Input that sends single events */
	kHardwareInputTypeGeneric,
	/** Input that usually send -up and -down events */
	kHardwareInputTypeKeyboard
};

/**
* Describes an available hardware input
*/
struct HardwareInput {
	/** unique id used for saving/loading to config */
	String id;

	/** Human readable description */
	String description;

	const HardwareInputType type;

	/**
	 * A platform specific unique identifier for an input event
	 * generated when this input is triggered.
	 * This is only relevant when type == kHardwareInputTypeGeneric
	 */
	HardwareInputCode inputCode;

	/**
	 * The KeyState that is generated by the back-end
	 * when this hardware key is pressed.
	 * This is only relevant when type == kHardwareInputTypeKeyboard
	 */
	KeyState key;

	HardwareInput(String i, HardwareInputCode ic = 0, String desc = "")
		: id(i), inputCode(ic), description(desc), type(kHardwareInputTypeGeneric) { }

	HardwareInput(String i, KeyState ky, String desc = "")
		: id(i), key(ky), description(desc), type(kHardwareInputTypeKeyboard) { }
};

struct HardwareInputTableEntry {
	const char *hwId;
	HardwareInputCode code;
	const char *desc;
};

/**
 * Entry in a static table of available non-modifier keys
 */
struct KeyTableEntry {
	const char *hwId;
	KeyCode keycode;
	uint16 ascii;
	const char *desc;
	bool shiftable;
};

/**
 * Entry in a static table of available key modifiers
 */
struct ModifierTableEntry {
	byte flag;
	const char *id;
	const char *desc;
	bool shiftable;
};

/**
 * Simple class to encapsulate a device's set of HardwareInputs.
 * Each device should instantiate this and call addHardwareInput a number of times
 * in its constructor to define the device's available keys.
 */
class HardwareInputSet {
public:

	/**
	 * Add hardware input keys to the set out of key and modifier tables.
	 * @param useDefault	auto-add the built-in default inputs
	 * @param keys       	table of available keys
	 * @param modifiers  	table of available modifiers
	 */
	HardwareInputSet(bool useDefault = false, const KeyTableEntry keys[] = 0, const ModifierTableEntry modifiers[] = 0);

	virtual ~HardwareInputSet();

	void addHardwareInput(const HardwareInput *input);

	const HardwareInput *findHardwareInput(String id) const;

	const HardwareInput *findHardwareInput(const HardwareInputCode code) const;

	const HardwareInput *findHardwareInput(const KeyState& keystate) const;

	const List<const HardwareInput *> &getHardwareInputs() const { return _inputs; }

	uint size() const { return _inputs.size(); }

	/**
	 * Add hardware inputs to the set out of a table.
	 * @param inputs       table of available inputs
	 */
	void addHardwareInputs(const HardwareInputTableEntry inputs[]);

	/**
	 * Add hardware inputs to the set out of key and modifier tables.
	 * @param keys       table of available keys
	 * @param modifiers  table of available modifiers
	 */
	void addHardwareInputs(const KeyTableEntry keys[], const ModifierTableEntry modifiers[]);

	void removeHardwareInput(const HardwareInput *input);

private:

	List<const HardwareInput *> _inputs;
};

} // End of namespace Common

#endif // #ifdef ENABLE_KEYMAPPER

#endif // #ifndef COMMON_HARDWARE_KEY_H