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/* 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 AGI_KEYBOARD_H
#define AGI_KEYBOARD_H

namespace Agi {

#define keyEnqueue(k) do { _keyQueue[_keyQueueEnd++] = (k); \
	_keyQueueEnd %= KEY_QUEUE_SIZE; } while (0)
#define keyDequeue(k) do { (k) = _keyQueue[_keyQueueStart++]; \
	_keyQueueStart %= KEY_QUEUE_SIZE; } while (0)

// Class to turn on synthetic events temporarily. Usually until the end of the
// current function.

class AllowSyntheticEvents {
private:
	AgiEngine *_vm;
public:
	AllowSyntheticEvents(AgiEngine *vm) : _vm(vm) {
		_vm->allowSynthetic(true);
	}

	~AllowSyntheticEvents() {
		_vm->allowSynthetic(false);
	}
};

// QNX4 has a KEY_DOWN defined which we don't need to care about
#undef KEY_DOWN

// Allegro defines these
#undef KEY_BACKSPACE
#undef KEY_ENTER
#undef KEY_LEFT
#undef KEY_RIGHT
#undef KEY_UP
#undef KEY_PGUP
#undef KEY_PGDN
#undef KEY_HOME
#undef KEY_END

#define KEY_BACKSPACE	0x08
#define	KEY_ESCAPE	0x1B
#define KEY_ENTER	0x0D
#define KEY_UP		0x4800
#define	KEY_DOWN	0x5000
#define KEY_LEFT	0x4B00
#define KEY_STATIONARY	0x4C00
#define KEY_RIGHT	0x4D00

#define KEY_DOWN_LEFT	0x4F00
#define KEY_DOWN_RIGHT	0x5100
#define KEY_UP_LEFT	0x4700
#define KEY_UP_RIGHT	0x4900

#define KEY_STATUSLN	0xd900	// F11
#define KEY_PRIORITY	0xda00	// F12

#define KEY_PGUP	0x4900	// Page Up (fixed by Ziv Barber)
#define KEY_PGDN	0x5100	// Page Down
#define KEY_HOME	0x4700	// Home
#define KEY_END		0x4f00	// End *

#define BUTTON_LEFT	0xF101	// Left mouse button
#define BUTTON_RIGHT	0xF202	// Right mouse button
#define WHEEL_UP	0xF203	// Mouse wheel up
#define WHEEL_DOWN	0xF204	// Mouse wheel down

#define KEY_SCAN(k)	(k >> 8)
#define KEY_ASCII(k)	(k & 0xff)

extern const uint8 scancodeTable[];

} // End of namespace Agi

#endif /* AGI_KEYBOARD_H */