//  *****************************************************************************************************************
//  *                                                                                                               *
//  *                                         SpikenzieLabs.com                                                     *
//  *                                                                                                               *
//  *                                           Message Pump                                                        *
//  *                                                                                                               *
//  *                                Demo Program for USB-LCD Interface                                             *
//  *                                                                                                               *
//  *****************************************************************************************************************
//
// BY: MARK DEMERS 
// Sept 2008
// VERSION: 0.1
//
// DESCRIPTION:
// This is a demo program to specifically drive the Message Pump from Spikenzielabs.com. The hard ware uses an FTDI
// USB UART to send serial data to a Microchip PIC 16F689 that drives an LCD.
//
// The default serial configuration is 9600 8N1
//
// FUNCTION:
// A. User selects a serial port form a list.
// B. Splash screen is displayed.
// C. User is asked to type.
// D. Splash screen is cleared and key-strokes are sent to display.
//



import processing.serial.*;

Serial port;  // Create object from Serial class

String[] lines;
int index = 0;
int state =3;
int i = 0;
String ports[] =  Serial.list();

void setup()
{
  size(512, 500);
  textFont(createFont("Arial", 12));
  background(255);
  selectport();
}

void draw()
{

  if (state==3){
  }
  else
  {
    background(255);
    text("Hit any key to send it to the dispay:", 15, 25, 600, 350);
  }
}


void selectport() 
{
  background(255);
  fill(0);
  stroke(50);
  text("Please press the number key that matches your serial Port:", 15, 25, 600, 350);
    fill(50);
  for(i=0; i <Serial.list().length; i=i+1)
  {
    text("Port ["+i+"] :    "+ports[i], 15, 75+(i*25), 600, 350);
  }
}

void keyPressed() {
  if(state==3){
    state=2;
    background(255);
    println(key);
    println(ports[key-48]);
    port = new Serial(this,ports[key-48], 9600);

    port.write(char(128));            // Start byte
    port.write(char(5));              // Hitchi command
    port.write(char(1));              // Clear display

    delay(50);

    port.write("Welcome to the Message Pump");   
  }
  else 
  {
    if(state==2){
      state=0;
      port.write(char(128));            // Start byte
      port.write(char(5));              // Hitchi command
      port.write(char(1));              // Clear display

      delay(50);
    }
    delay(50);
    if (key == CODED)                   // Don't print out shift key ...
    {
    }
    else
    {
    port.write(key);
    }
  }
}