/*      _______   __   __   __   ______   __   __   _______   __   __
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
 *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
 *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
 *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
 *
 * Copyright (c) 2004, 2005, 2006, 2007 Olof Naessén and Per Larsson
 *
 *                                                         Js_./
 * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
 * Olof Naessén a.k.a jansem/yakslem                _asww7!uY`>  )\a//
 *                                                 _Qhm`] _f "'c  1!5m
 * Visit: http://guichan.darkbits.org             )Qk<P ` _: :+' .'  "{[
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 */

#ifndef GCN_KEYINPUT_HPP
#define GCN_KEYINPUT_HPP

#include "guisan/key.hpp"
#include "guisan/platform.hpp"

namespace gcn
{
    /**
     * Internal class that represents key input. Generally you won't have to
     * bother using this class unless you implement an Input class for
     * a back end.
     *
     * @since 0.1.0
     */
    class GCN_CORE_DECLSPEC KeyInput
    {
    public:

        /**
         * Constructor.
         */
        KeyInput() = default;

        /**
         * Constructor.
         *
         * @param key The key of the key input.
         * @param type The type of key input.
         */
        KeyInput(const Key& key, unsigned int type);

        /**
         * Sets the type of the key input.
         *
         * @param type The type of key input.
         * @see getType
         */
        void setType(unsigned int type);

        /**
         * Gets the type of the key input.
         *
         * @return the input type.
         * @see setType
         */
        int getType() const;

        /**
         * Sets the key of the key input.
         *
         * @param key The key of the key input.
         * @see getKey
         */
        void setKey(const Key& key);

        /**
         * Gets the key of the key input.
         *
         * @return The key of the key input.
         * @see setKey
         */
        const Key& getKey() const;

        /**
         * Checks if shift is pressed.
         *
         * @return True if shift was pressed at the same
         *         time as the key, false otherwise.
         * @see setShiftPressed
         * @since 0.6.0
         */
        bool isShiftPressed() const;

        /**
         * Sets shift to be pressed at the same time as the key,
         * or not.
         *
         * @param pressed True if shift is pressed, false otherwise.
         * @see isShiftPressed
         * @since 0.6.0
         */
        void setShiftPressed(bool pressed);

        /**
         * Checks if control is pressed.
         *
         * @return True if control was pressed at the same
         *         time as the key, false otherwise.
         * @see setControlPressed
         * @since 0.6.0
         */
        bool isControlPressed() const;

        /**
         * Sets control to be pressed at the same time as the key,
         * or not.
         *
         * @param pressed True if control is pressed, false otherwise.
         * @see isControlPressed
         * @since 0.6.0
         */
        void setControlPressed(bool pressed);

        /**
         * Checks if alt is pressed.
         *
         * @return True if alt was pressed at the same
         *         time as the key, false otherwise.
         * @see setAltPressed
         * @since 0.6.0
         */
        bool isAltPressed() const;

        /**
         * Sets the alt to be pressed at the same time as the key,
         * or not.
         *
         * @param pressed True if alt is pressed at the same 
         *                time as the key, , false otherwise.
         * @see isAltPressed
         * @since 0.6.0
         */
        void setAltPressed(bool pressed);

        /**
         * Checks if meta is pressed.
         *
         * @return True if meta was pressed at the same
         *         time as the key, false otherwise.
         * @see setMetaPressed
         * @since 0.6.0
         */
        bool isMetaPressed() const;

        /**
         * Sets meta to be pressed at the same time as the key,
         * or not.
         *
         * @param pressed True if meta is pressed at the same
         *                time as the key, false otherwise.
         * @see isMetaPressed
         * @since 0.6.0
         */
        void setMetaPressed(bool pressed);

        /**
         * Checks if the key was pressed at the numeric pad.
         *
         * @return True if key pressed at the numeric pad,
         *         false otherwise.
         * @setNumericPad
         * @since 0.6.0
         */
        bool isNumericPad() const;

        /**
         * Sets the key to be pressed at the numeric pad.
         *
         * @param numpad True if the key was pressed at the numeric
         *               pad, false otherwise.
         * @see isNumericPad
         * @since 0.6.0
         */
        void setNumericPad(bool numpad);

        /**
         * Key input types. This enum corresponds to the enum with event
         * types on KeyEvent for easy mapping.
         */
        enum
        {
            Pressed = 0,
            Released
        };

    protected:
        /**
         * Holds the key of the key input.
         */
        Key mKey;

        /**
         * Holds the type of the key input.
         */
        unsigned int mType = 0;

        /**
         * True if shift was pressed at the same time as the key,
         * false otherwise.
         */
        bool mShiftPressed = false;

        /**
         * True if control was pressed at the same time as the key,
         * false otherwise.
         */
        bool mControlPressed = false;

        /**
         * True if alt was pressed at the same time as the key,
         * false otherwise.
         */
        bool mAltPressed = false;

        /**
         * True if meta was pressed at the same time as the key,
         * false otherwise.
         */
        bool mMetaPressed = false;

        /**
         * True if the numeric pad was used when the key was pressed,
         * false otherwise.
         */
        bool mNumericPad = false;
    };
}

#endif // end GCN_KEYINPUT_HPP
