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/*      _______   __   __   __   ______   __   __   _______   __   __
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
 *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
 *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
 *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
 *
 * Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson
 * Copyright (C) 2011-2012  The ManaPlus Developers
 *
 *
 * Per Larsson a.k.a finalman
 * Olof Naess�n a.k.a jansem/yakslem
 *
 * Visit: http://guichan.sourceforge.net
 *
 * License: (BSD)
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name of Guichan nor the names of its contributors may
 *    be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef GCN_KEY_HPP
#define GCN_KEY_HPP

#include "guichan/platform.hpp"

#include "localconsts.h"

// windows.h defines DELETE which breaks this file as we have a constant named
// DELETE, hence we undefine DELETE if it is defined and hope people don't use
// that windows define with Guichan.
#if defined (_WIN32) && defined(DELETE)
#undef DELETE
#endif

namespace gcn
{
    /**
     * Represents a key or a character.
     */
    class GCN_CORE_DECLSPEC Key final
    {
    public:

        /**
         * Constructor.
         *
         * @param value The ascii or enum value for the key.
         */
        Key(const int value = 0);

        /**
         * Checks if a key is a character.
         *
         * @return True if the key is a letter, number or whitespace,
         *         false otherwise.
         */
        bool isCharacter() const A_WARN_UNUSED;

        /**
         * Checks if a key is a number.
         *
         * @return True if the key is a number (0-9),
         *         false otherwise.
         */
        bool isNumber() const A_WARN_UNUSED;

        /**
         * Checks if a key is a letter.
         *
         * @return True if the key is a letter (a-z,A-Z),
         *         false otherwise.
         */
        bool isLetter() const A_WARN_UNUSED;

        /**
         * Gets the value of the key. If an ascii value exists it 
         * will be returned. Otherwise an enum value will be returned.
         *
         * @return the value of the key.
         */
        int getValue() const A_WARN_UNUSED;

        /**
         * Compares two keys.
         *
         * @param key The key to compare this key with.
         * @return True if the keys are equal, false otherwise.
         */
        bool operator==(const Key& key) const;

        /**
         * Compares two keys.
         *
         * @param key The key to compare this key with.
         * @return True if the keys are not equal, false otherwise.
         */
        bool operator!=(const Key& key) const;

        /**
         * An enum with key values.
         */
        enum
        {
            SPACE              = ' ',
            TAB                = '\t',
            ENTER              = '\n',
            LEFT_ALT           = 1000,
            RIGHT_ALT,
            LEFT_SHIFT,
            RIGHT_SHIFT,
            LEFT_CONTROL,
            RIGHT_CONTROL,
            LEFT_META,
            RIGHT_META,
            LEFT_SUPER,
            RIGHT_SUPER,
            INSERT,
            HOME,
            PAGE_UP,
            DELETE,
            END,
            PAGE_DOWN,
            ESCAPE,
            CAPS_LOCK,
            BACKSPACE,
            F1,
            F2,
            F3,
            F4,
            F5,
            F6,
            F7,
            F8,
            F9,
            F10,
            F11,
            F12,
            F13,
            F14,
            F15,
            PRINT_SCREEN,
            SCROLL_LOCK,
            PAUSE,
            NUM_LOCK,
            ALT_GR,
            LEFT,
            RIGHT,
            UP,
            DOWN
        };

    protected:
        /**
         * Holds the value of the key. It may be an ascii value
         * or an enum value.
         */
        int mValue;
    };
}

#endif // end GCN_KEY_HPP