key.h

Linux系统下的《红色警戒》游戏

/*      _______   __   __   __   ______   __   __   _______   __   __                 
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\                
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 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /                    
 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/                      
 *
 * Copyright (c) 2004, 2005 darkbits                        Js_./
 * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
 * Olof Naess閚 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_KEY_HPP
#define GCN_KEY_HPP

#include <string>

#include "guichan/platform.h"

#ifdef DELETE
#undef DELETE
#endif

namespace gcn
{
    /**
     * Represents a key or a character.
     */
    class GCN_CORE_DECLSPEC Key
    {
    public:
        /**
         * Constructor.
         */
        Key();
    
        /**
         * Constructor.
         *
         * @param value the ascii or enum value for the key.
         */
        Key(int value);
    
        /**
         * Checks whether a key is a character.
         *
         * @return true if the key is a letter, number or whitespace.
         */
        bool isCharacter() const;

        /**
         * Checks whether a key is a number.
         *
         * @return true if the key is a number (0-9).
         */
        bool isNumber() const;
    
        /**
         * Checks whether a key is a letter.
         *
         * @return true if the key is a letter (a-z,A-Z). 
         */
        bool isLetter() const;

        /**
         * Checks whether shift is pressed.
         *
         * @return true if shift was pressed at the same time as the key.
         */
        bool isShiftPressed() const;
    
        /**
         * Sets the shift pressed flag.
         *
         * @param pressed the shift flag value.
         */
        void setShiftPressed(bool pressed);

        /**
         * Checks whether control is pressed.
         * @return true if control was pressed at the same time as the key.
         */    
        bool isControlPressed() const;
    
        /**
         * Sets the control pressed flag.
         *
         * @param pressed the control flag value.
         */
        void setControlPressed(bool pressed);

        /**
         * Checks whether alt is pressed.
         *
         * @return true if alt was pressed at the same time as the key.
         */
        bool isAltPressed() const;

        /**
         * Sets the alt pressed flag.
         *
         * @param pressed the alt flag value.
         */
        void setAltPressed(bool pressed);

        /**
         * Checks whether meta is pressed.
         *
         * @return true if meta was pressed at the same time as the key.
         */
        bool isMetaPressed() const;

        /**
         * Sets the meta pressed flag.
         *
         * @param pressed the meta flag value.
         */
        void setMetaPressed(bool pressed);
    
        /**
         * Checks whether the key was pressed at the numeric pad.
         *
         * @return true if key pressed at the numeric pad.
         */
        bool isNumericPad() const;

        /**
         * Sets the numeric pad flag.
         *
         * @param numpad the numeric pad flag value.
         */
        void setNumericPad(bool numpad);
    
        /**
         * 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;

        /**
         * Sets the value of the key. An ascii value or an enum value.
         *
         * @param value the key value.
         */
        void setValue(int value);

		/**
		 * Convert to a UTF8 string
		 */
		std::string toString() 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:
        int mValue;
        bool mShiftPressed;
        bool mControlPressed;
        bool mAltPressed;
        bool mMetaPressed;
        bool mNumericPad;    
    };
}

#endif // end GCN_KEY_HPP