/**
 *  ALFANUMERIC.cpp
 *  Jan Dvorak z Vozerovic - dvorkaman@centrum.cz - dvorkaman.php5.cz
 */   
 
#ifndef alfanumeric_cpp
#define alfanumeric_cpp

#include "WProgram.h"
#include "alfanumeric.h"
#include "alfadigits.h"

/**************************************/
/**
 * Constructor
 * @param int[] array of 17pins of display A1 -> P + DP; see A825RD datasheet for scheme
 */
Alfanumeric::Alfanumeric(int pins[])
{
  for( int i=0; i<17; i++ )
  {
      usedPins[i]=pins[i];
  }
  
  init();
}

/**************************************/
/**
 * Inicializes pins as OUTPUT, sets as HIGH - diodes are turned OFF
 * PRIVATE
 */
void Alfanumeric::init()
{
  for( int i=0; i<17; i++ )
  {
     pinMode( usedPins[i],OUTPUT );
     digitalWrite( usedPins[i], HIGH );
  }
}

/**************************************/
/**
 * Shows number
 * @param int number to be displayed: 0 -> 9 ; A -> F 
 */
 void Alfanumeric::showNumber(int number)
 {
   char l;
   if(number<10) l=number+'0';
     else if(number<16) l=number-10+'A';
       else l=-1;
   show( l );
 }
 
/**************************************/
/**
 * Shows letter and dot
 * @param char letter to be displayed with dot 
 */
 void Alfanumeric::showLetterAndDot(char letter)
 {
   show(letter);
   digitalWrite(usedPins[16],LOW);
 }

/**************************************/
/**
 * Shows letter
 * @param char letter to be displayed 
 */
void Alfanumeric::show(char letter)
{
  long l=alfa16_null;
    
  //vyber pismene
  switch( letter )
  {
    case 'A': l=alfa16A;break;
    case 'B': l=alfa16B;break;
    case 'C': l=alfa16C;break;
    case 'D': l=alfa16D;break;
    case 'E': l=alfa16E;break;
    case 'F': l=alfa16F;break;
    case 'G': l=alfa16G;break;
    case 'H': l=alfa16H;break;
    case 'I': l=alfa16I;break;
    case 'J': l=alfa16J;break;
    case 'K': l=alfa16K;break;    
    case 'L': l=alfa16L;break;
    case 'M': l=alfa16M;break;
    case 'N': l=alfa16N;break;
    case 'O': l=alfa16O;break;    
    case 'P': l=alfa16P;break;
    case 'Q': l=alfa16Q;break;
    case 'R': l=alfa16R;break;
    case 'S': l=alfa16S;break;
    case 'T': l=alfa16T;break;    
    case 'U': l=alfa16U;break;
    case 'V': l=alfa16V;break;
    case 'W': l=alfa16W;break;
    case 'X': case '*': l=alfa16X;break;    
    case 'Y': l=alfa16Y;break;
    case 'Z': l=alfa16Z;break;
    
    case '0': l=alfa160;break;    
    case '1': l=alfa161;break;    
    case '2': l=alfa162;break;    
    case '3': l=alfa163;break;    
    case '4': l=alfa164;break;    
    case '5': l=alfa165;break;    
    case '6': l=alfa166;break;    
    case '7': l=alfa167;break;    
    case '8': l=alfa168;break;    
    case '9': l=alfa169;break;        
    
    case '.': l=alfa16DP;break;    
    case '-': l=alfa16MI;break;    
    case '_': l=alfa16UL;break;    
    case '\\': l=alfa16BS;break;    
    case '/': l=alfa16NS;break;    
    case '+': l=alfa16PL;break;    
    case '[': l=alfa16LB;break;    
    case ']': l=alfa16RB;break;    
    case '%': l=alfa16PR;break;    
    case '=': l=alfa16EQ;break;    
    case '>': l=alfa16GT;break;    
    case '<': l=alfa16LT;break;    
    case '?': l=alfa16QM;break;    
    case ',': l=alfa16CM;break;        
    case '|': l=alfa16DT;break;        
    case '°': l=alfa16DG;break;        
    case '@': l=alfa16AT;break;            

  }  
  
  showOwnLetter(l);  
}

/**************************************/
/**
 * Shows own letter
 * @param long 17bit number, whose bits (A1 = MSB, DP = LSB) represents state of each diods: 1 = ON, 0 = OFF
 */
void Alfanumeric::showOwnLetter(long letter)
{
  long l=letter;
  //nastaveni jednotlivych pinu - posunuju binarne pismeno do leva a vymaskuju vzdy posledni bit...
  for( int i=16; i>=0; i-- )
  {    
    digitalWrite( usedPins[i], 1- (l & 1) ); //aktivni nula
    l = l >> 1;
  }
}

#endif