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CSC112 Spring 2016 Examples

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/*

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 * File: keyStream.h

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 * Purpose: A small class which provides a nifty little tty aware input

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 *          stream.  This class only works with stdin. 

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 *          Also, it's probably a bad idea to touch cin if you're using this thing.

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 *          You've been warned!

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 * Author: Robert Lowe

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 *

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 * Revision: $Revision: 1.1 $

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 * Change Log

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 *   $Log: keystream.h,v $

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 *   Revision 1.1  2016/03/17 15:50:30  pngwen

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 *   Initial revision

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 *

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 */

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#ifndef KEYSTREAM_H

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#define KEYSTREAM_H

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#include <iostream>

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#include <termios.h>

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#include <cstdint>

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typedef std::uint32_t keycode;

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class KeyStream : public std::istream

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{

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public:

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  //constructor & Destructor

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  KeyStream();

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  ~KeyStream();

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  //macro modes

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  virtual void cookedMode();

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  virtual void rawMode();

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  virtual void cbreakMode();

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  //specific status flags

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  virtual bool echo();

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  virtual void echo(bool flag);

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  virtual bool canonical();

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  virtual void canonical(bool flag);

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  virtual bool signal();

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  virtual void signal(bool flag);

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  virtual bool special();

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  virtual void special(bool flag);

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  //extensions to the normal IO stuff

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  virtual keycode getKey();

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  virtual bool hasInput();

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private:

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  bool _echo;

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  bool _canonical;

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  bool _signal;

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  bool _special;

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  struct termios _originalTermios;

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  void setTermiosFlags();

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};

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extern KeyStream kin;  //the default keyboard stream kin!

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/*

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 * Keycodes of special keys as reported by getKey

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 *   ALT+key is detected by the ALT macro: ALT('a'), ALT('c') etc. 

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 *   The others are defined as constants

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 */

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#define ALT(k) (0x1B00 | (k))

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#define UP           0x1B5B41

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#define DOWN         0x1B5B42

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#define RIGHT        0x1B5B43

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#define LEFT         0x1B5B44

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#define INSERT       0x1B5B327E

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#define DELETE       0x1B5B337E

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#define PAGEUP       0x1B5B357E

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#define PAGEDOWN     0x1B5B367E

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#define HOME         0x1B4F48

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#define END          0x1B4F46

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#define F1           0x1B4F50

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#define F2           0x1B4F51

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#define F3           0x1B4F52

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#define F4           0x1B4F53

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#define ESC          0x1B

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#define ENTER        0x0A

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#define CTRL_Q       0x11

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#define CTRL_W       0x17

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#define CTRL_E       0x05

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#define CTRL_R       0x12

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#define CTRL_T       0x14

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#define CTRL_Y       0x19

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#define CTRL_U       0x15

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#define CTRL_I       0x09

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#define CTRL_O       0x0F

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#define CTRL_P       0x10

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#define CTRL_LSQUARE 0x1B

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#define CTRL_RSQUARE 0x1D

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#define CTRL_A       0x01

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#define CTRL_S       0x13

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#define CTRL_D       0x04

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#define CTRL_F       0x06

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#define CTRL_G       0x07

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#define CTRL_H       0x08

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#define CTRL_J       0x0A

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#define CTRL_K       0x0B

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#define CTRL_L       0x0C

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#define CTRL_SEMI    0x3B

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#define CTRL_QUOTE   0x27

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#define CTRL_ENTER   0x0A

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#define CTRL_Z       0x1A

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#define CTRL_X       0x18

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#define CTRL_C       0x03

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#define CTRL_V       0x16

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#define CTRL_B       0x02

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#define CTRL_N       0x0E

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#define CTRL_M       0x0D

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#define CTRL_COMMA   0x2C

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#define CTRL_PERIOD  0x2E

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#define CTRL_SLASH   0x1F

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#endif

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