aboutsummaryrefslogtreecommitdiff
path: root/common/keyboard.h
blob: bdd0a2d4afdc72cb0629e756db13ebe95191f63c (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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
/* 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_KEYBOARD_H
#define COMMON_KEYBOARD_H

#include "common/scummsys.h"

#if defined(__amigaos4__)
// KEYCODE_LESS and KEYCODE_GREATER are already defined in AmigaOS, inside
// include/include_h/intuition/intuition.h (bug #3121350)
#if defined(KEYCODE_LESS) && defined(KEYCODE_GREATER)
#undef KEYCODE_LESS
#undef KEYCODE_GREATER
#endif
#endif

namespace Common {

enum KeyCode {
	KEYCODE_INVALID     = 0,

	KEYCODE_BACKSPACE   = 8,
	KEYCODE_TAB         = 9,
	KEYCODE_CLEAR       = 12,
	KEYCODE_RETURN      = 13,
	KEYCODE_PAUSE       = 19,
	KEYCODE_ESCAPE      = 27,
	KEYCODE_SPACE       = 32,
	KEYCODE_EXCLAIM     = 33,      // !
	KEYCODE_QUOTEDBL    = 34,      // "
	KEYCODE_HASH        = 35,      // #
	KEYCODE_DOLLAR      = 36,      // $
	KEYCODE_AMPERSAND   = 38,      // &
	KEYCODE_QUOTE       = 39,      // '
	KEYCODE_LEFTPAREN   = 40,
	KEYCODE_RIGHTPAREN  = 41,
	KEYCODE_ASTERISK    = 42,      // *
	KEYCODE_PLUS        = 43,
	KEYCODE_COMMA       = 44,
	KEYCODE_MINUS       = 45,
	KEYCODE_PERIOD      = 46,
	KEYCODE_SLASH       = 47,
	KEYCODE_0           = 48,
	KEYCODE_1           = 49,
	KEYCODE_2           = 50,
	KEYCODE_3           = 51,
	KEYCODE_4           = 52,
	KEYCODE_5           = 53,
	KEYCODE_6           = 54,
	KEYCODE_7           = 55,
	KEYCODE_8           = 56,
	KEYCODE_9           = 57,
	KEYCODE_COLON       = 58,
	KEYCODE_SEMICOLON   = 59,
	KEYCODE_LESS        = 60,
	KEYCODE_EQUALS      = 61,
	KEYCODE_GREATER     = 62,
	KEYCODE_QUESTION    = 63,
	KEYCODE_AT          = 64,

	KEYCODE_LEFTBRACKET = 91,
	KEYCODE_BACKSLASH   = 92,
	KEYCODE_RIGHTBRACKET= 93,
	KEYCODE_CARET       = 94,
	KEYCODE_UNDERSCORE  = 95,
	KEYCODE_BACKQUOTE   = 96,
	KEYCODE_a           = 97,
	KEYCODE_b           = 98,
	KEYCODE_c           = 99,
	KEYCODE_d           = 100,
	KEYCODE_e           = 101,
	KEYCODE_f           = 102,
	KEYCODE_g           = 103,
	KEYCODE_h           = 104,
	KEYCODE_i           = 105,
	KEYCODE_j           = 106,
	KEYCODE_k           = 107,
	KEYCODE_l           = 108,
	KEYCODE_m           = 109,
	KEYCODE_n           = 110,
	KEYCODE_o           = 111,
	KEYCODE_p           = 112,
	KEYCODE_q           = 113,
	KEYCODE_r           = 114,
	KEYCODE_s           = 115,
	KEYCODE_t           = 116,
	KEYCODE_u           = 117,
	KEYCODE_v           = 118,
	KEYCODE_w           = 119,
	KEYCODE_x           = 120,
	KEYCODE_y           = 121,
	KEYCODE_z           = 122,
	KEYCODE_DELETE      = 127,
	KEYCODE_TILDE       = 176,      // ~

	// Numeric keypad
	KEYCODE_KP0         = 256,
	KEYCODE_KP1         = 257,
	KEYCODE_KP2         = 258,
	KEYCODE_KP3         = 259,
	KEYCODE_KP4         = 260,
	KEYCODE_KP5         = 261,
	KEYCODE_KP6         = 262,
	KEYCODE_KP7         = 263,
	KEYCODE_KP8         = 264,
	KEYCODE_KP9         = 265,
	KEYCODE_KP_PERIOD   = 266,
	KEYCODE_KP_DIVIDE   = 267,
	KEYCODE_KP_MULTIPLY = 268,
	KEYCODE_KP_MINUS    = 269,
	KEYCODE_KP_PLUS     = 270,
	KEYCODE_KP_ENTER    = 271,
	KEYCODE_KP_EQUALS   = 272,

	// Arrows + Home/End pad
	KEYCODE_UP          = 273,
	KEYCODE_DOWN        = 274,
	KEYCODE_RIGHT       = 275,
	KEYCODE_LEFT        = 276,
	KEYCODE_INSERT      = 277,
	KEYCODE_HOME        = 278,
	KEYCODE_END         = 279,
	KEYCODE_PAGEUP      = 280,
	KEYCODE_PAGEDOWN    = 281,

	// Function keys
	KEYCODE_F1          = 282,
	KEYCODE_F2          = 283,
	KEYCODE_F3          = 284,
	KEYCODE_F4          = 285,
	KEYCODE_F5          = 286,
	KEYCODE_F6          = 287,
	KEYCODE_F7          = 288,
	KEYCODE_F8          = 289,
	KEYCODE_F9          = 290,
	KEYCODE_F10         = 291,
	KEYCODE_F11         = 292,
	KEYCODE_F12         = 293,
	KEYCODE_F13         = 294,
	KEYCODE_F14         = 295,
	KEYCODE_F15         = 296,

	// Key state modifier keys
	KEYCODE_NUMLOCK     = 300,
	KEYCODE_CAPSLOCK    = 301,
	KEYCODE_SCROLLOCK   = 302,
	KEYCODE_RSHIFT      = 303,
	KEYCODE_LSHIFT      = 304,
	KEYCODE_RCTRL       = 305,
	KEYCODE_LCTRL       = 306,
	KEYCODE_RALT        = 307,
	KEYCODE_LALT        = 308,
	KEYCODE_RMETA       = 309,
	KEYCODE_LMETA       = 310,
	KEYCODE_LSUPER      = 311,      // Left "Windows" key
	KEYCODE_RSUPER      = 312,      // Right "Windows" key
	KEYCODE_MODE        = 313,      // "Alt Gr" key
	KEYCODE_COMPOSE     = 314,      // Multi-key compose key

	// Miscellaneous function keys
	KEYCODE_HELP        = 315,
	KEYCODE_PRINT       = 316,
	KEYCODE_SYSREQ      = 317,
	KEYCODE_BREAK       = 318,
	KEYCODE_MENU        = 319,
	KEYCODE_POWER       = 320,      // Power Macintosh power key
	KEYCODE_EURO        = 321,      // Some european keyboards
	KEYCODE_UNDO        = 322       // Atari keyboard has Undo
};

/**
 * List of certain special and some fake 'ascii' values used in keyboard events.
 * The values for the function keys listed here are based on what certain SCUMM
 * games expect in their scripts.
 * @todo Get rid of the function key values, and instead enforce that engines use
 * the keycode value to handle these.
 */
enum {
	ASCII_BACKSPACE     = 8,
	ASCII_TAB           = 9,
	ASCII_RETURN        = 13,
	ASCII_ESCAPE        = 27,
	ASCII_SPACE         = 32,

	ASCII_F1            = 315,
	ASCII_F2            = 316,
	ASCII_F3            = 317,
	ASCII_F4            = 318,
	ASCII_F5            = 319,
	ASCII_F6            = 320,
	ASCII_F7            = 321,
	ASCII_F8            = 322,
	ASCII_F9            = 323,
	ASCII_F10           = 324,
	ASCII_F11           = 325,
	ASCII_F12           = 326
};

/**
 * Keyboard modifier flags, used for Event::kbd::flags.
 */
enum {
	// Non-sticky modifier flags
	KBD_CTRL  = 1 << 0,
	KBD_ALT   = 1 << 1,
	KBD_SHIFT = 1 << 2,

	// Sticky modifier flags
	KBD_NUM   = 1 << 3,
	KBD_CAPS  = 1 << 4,
	KBD_SCRL  = 1 << 5
};

/**
 * Keyboard status, as used in the Event struct.
 */
struct KeyState {
	/**
	 * Abstract key code (will be the same for any given key regardless
	 * of modifiers being held at the same time.
	 */
	KeyCode keycode;

	/**
	 * ASCII-value of the pressed key (if any).
	 * This depends on modifiers, i.e. pressing the 'A' key results in
	 * different values here depending on the status of shift, alt and
	 * caps lock.
	 */
	uint16 ascii;

	/**
	 * Status of the modifier keys. Bits are set in this for each
	 * pressed modifier.
	 * We distinguish 'non-sticky' and 'sticky' modifiers flags. The former
	 * are only set while certain keys (ctrl, alt, shift) are pressed by the
	 * user; the latter (num lock, caps lock, scroll lock) are activated when
	 * certain keys are pressed and released; and deactivated when that key
	 * is pressed and released a second time.
	 *
	 * @see KBD_CTRL, KBD_ALT, KBD_SHIFT, KBD_NUM, KBD_CAPS, KBD_SCRL
	 */
	byte flags;

	KeyState(KeyCode kc = KEYCODE_INVALID) {
		keycode = kc;
		ascii = (uint16)kc;
		flags = 0;
	}

	KeyState(KeyCode kc, uint16 asc, byte f = 0) {
		keycode = kc;
		ascii = asc;
		flags = f;
	}

	void reset() {
		keycode = KEYCODE_INVALID;
		ascii = flags = 0;
	}

	/**
	 * Check whether the non-sticky flags are *exactly* as specified by f.
	 * This ignors the sticky flags (KBD_NUM, KBD_CAPS, KBD_SCRL).
	 * If you just want to check whether a modifier flag is set, just bit-and
	 * the flag. E.g. to check whether the control key modifier is set,
	 * you can write
	 *    if (keystate.flags & KBD_CTRL) { ... }
	 */
	bool hasFlags(byte f) const {
		return f == (flags & ~(KBD_NUM|KBD_CAPS|KBD_SCRL));
	}

	bool operator==(const KeyState &x) const {
		return keycode == x.keycode && ascii == x.ascii && flags == x.flags;
	}
};

} // End of namespace Common

#endif