forked from BSB-WS23/mpstubs
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
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/*! \file
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* \brief \ref KeyDecoder decodes a keystroke to the corresponding \ref Key object
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*/
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#pragma once
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#include "object/key.h"
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/*! \brief Decoder for \ref ps2keyboardset1 "keyboard codes" received from the \ref PS2Controller
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* \ingroup io
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*
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* Extracts the make and break codes, modifier and scan codes from the pressed key.
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*/
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class KeyDecoder {
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unsigned char prefix; ///< Prefix byte for keys
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Key modifier; ///< activated modifier keys (e.g., caps lock)
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public:
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/*! \brief Current state (pressed or released) of all keys.
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*/
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bool status[Key::Scancode::KEYS];
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/*! \brief Default constructor
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*/
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KeyDecoder() {}
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/*! \brief Interprets the \ref ps2keyboardset1 "make and break codes" received from the
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* keyboard and derives the corresponding scan code and further information about
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* other pressed keys, such as \key{shift} and \key{ctrl}.
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*
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* \param code Byte from Keyboard to decode
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* \return Pressed key (\ref Key::valid returns `false` if the key is not yet complete)
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*/
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Key decode(unsigned char code);
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};
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