/***************************************************
  This is our GFX example for the Adafruit ILI9341 Breakout and Shield
  ----> http://www.adafruit.com/products/1651

  Check out the links above for our tutorials and wiring diagrams
  These displays use SPI to communicate, 4 or 5 pins are required to
  interface (RST is optional)
  Adafruit invests time and resources providing this open source code,
  please support Adafruit and open-source hardware by purchasing
  products from Adafruit!

  Written by Limor Fried/Ladyada for Adafruit Industries.
  MIT license, all text above must be included in any redistribution
 ****************************************************/


#include "SPI.h"
#include "Adafruit_GFX.h"
#include "Adafruit_ILI9341.h"

// For the Adafruit shield, these are the default.
#define TFT_DC 9
#define TFT_CS 10
#define GREY 0x7D5A
#define DARKRED 0x8000
#define BRIGHT 0XCFFF

// Use hardware SPI (on Uno, #13, #12, #11) and the above for CS/DC
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
// If using the breakout, change pins as desired
//Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_MOSI, TFT_CLK, TFT_RST, TFT_MISO);

const byte buttonPins[] = {7, 8, A0, A1,A2,A3,A4,A5};

String buttonName;

const unsigned char myBitmap [] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 
0x0f, 0xbe, 0xf7, 0xc0, 0x00, 0x00, 0x01, 0xc0, 0x02, 0x20, 0x81, 0x00, 0x00, 0x00, 0x01, 0xc0, 
0x02, 0x3e, 0xf1, 0x00, 0x00, 0x00, 0x01, 0xc0, 0x02, 0x20, 0x11, 0x00, 0x00, 0x00, 0x0e, 0x00, 
0x02, 0x20, 0x11, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x02, 0x3e, 0xf1, 0x00, 0x00, 0x00, 0x0e, 0x00, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x80, 0x00, 
0x00, 0x00, 0x00, 0x07, 0xfe, 0x03, 0x80, 0x00, 0x0f, 0xfe, 0x00, 0x08, 0x01, 0x03, 0x80, 0x00, 
0x0f, 0xfe, 0x00, 0x14, 0x02, 0x80, 0x70, 0x00, 0x0f, 0xfe, 0x00, 0x12, 0x04, 0x80, 0x70, 0x00, 
0x0e, 0x0e, 0x00, 0x11, 0x08, 0x80, 0x70, 0x00, 0x0e, 0x0e, 0x00, 0x10, 0xf0, 0x80, 0x0e, 0x00, 
0x0e, 0x0e, 0x00, 0x10, 0x90, 0x80, 0x0e, 0x00, 0x0e, 0x0e, 0x00, 0x10, 0x90, 0x80, 0x0e, 0x00, 
0x0f, 0xfe, 0x00, 0x10, 0xf0, 0x80, 0x01, 0xc0, 0x0f, 0xfe, 0x00, 0x11, 0x08, 0x80, 0x01, 0xc0, 
0x0f, 0xfe, 0x00, 0x12, 0x04, 0x80, 0x01, 0xc0, 0x0e, 0x0e, 0x00, 0x14, 0x02, 0x80, 0x00, 0x38, 
0x0e, 0x0e, 0x00, 0x08, 0x01, 0x00, 0x00, 0x38, 0x0e, 0x0e, 0x00, 0x07, 0xfe, 0x00, 0x00, 0x38, 
0x0e, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x0e, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 
0x0e, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x0e, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0x0e, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 

};

void setup() {
  Serial.begin(9600);
  Serial.println("ILI9341 Test!"); 
   for (byte i = 0; i < 8; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }
 
  tft.begin();

  tft.setRotation(1);
  tft.setTextSize(2);
  Serial.println(F("Done!"));

}


void loop(void) {
    // check buttons
    byte actualButton = readButtons();
     Serial.print(F("Button "));
     Serial.print(actualButton);
     switch (actualButton){
       case 1:
         buttonName = "SELECT";
         break;
       case 0:
         buttonName = "START";
         break;
       case 3:
         buttonName = "LEFT";
         break;
       case 4:
         buttonName = "DOWN";
         break;
       case 5:
         buttonName = "RIGHT";
         break; 
       case 6:
         buttonName = "A";
         break;             
       case 7:
         buttonName = "B";
         break;    
       case 2:
         buttonName = "UP";
         break;                      
         }
         Serial.println(buttonName);
        
         tft.fillRect(100, 180, 90, 20, ILI9341_BLACK);
         tft.setCursor(100, 180);
         tft.setTextColor(ILI9341_YELLOW);
         tft.println(buttonName);
         rect();
         for(int i=0;i<8;i++){
            drawTrack(i) ;
         }
     delay(500);
}

byte readButtons() {
  while (true) {
    for (byte i = 0; i < 8; i++) {
      byte buttonPin = buttonPins[i];
      if (digitalRead(buttonPin) == LOW) {
        return i;
      }
    }
    delay(1);
  }
}

unsigned long testFillScreen() {
  unsigned long start = micros();
  
  yield();
  tft.fillScreen(ILI9341_RED);
  yield();
  tft.fillScreen(ILI9341_GREEN);
  yield();
  tft.fillScreen(ILI9341_BLUE);
  yield();
  tft.fillScreen(ILI9341_BLACK);
  yield();
  return micros() - start;
}

unsigned long rect() {
  //tft.drawRect(0, 0, 320, 240, ILI9341_YELLOW);
  testText();
  tft.fillRoundRect(0, 220, 102, 18, 3, ILI9341_WHITE);
  tft.fillRoundRect(2, 222, 98, 14, 3, ILI9341_BLACK);

  //tft.drawBitmap(80, 130, myBitmap, 64, 64, ILI9341_BLUE);
  for (int i=4;i<95;i=i+6) {
    if (i >75){
      drawBar(i,ILI9341_WHITE);
    }else{
      drawBar(i, GREY);
    }
  }

}

void drawBar(uint16_t x, uint16_t color){
  tft.drawFastVLine(x, 223, 12, color);
  tft.drawFastVLine(x+1, 223, 12, color);
  tft.drawFastVLine(x+2, 223, 12, color);
}
void drawTrackBars(int track){
  for (int y=0;y<17;y++){
    tft.drawFastHLine(track*32+4, y*2+26, 22, GREY);
  }
}
void drawTrack(int num) {
  tft.fillRoundRect(num*32, 20,30, 70, 3, ILI9341_WHITE);
  tft.fillRoundRect(num*32+2, 22, 26, 66, 3, ILI9341_BLACK);
  tft.fillRect(num*32+4, 62, 22, 22, GREY);
  drawTrackBars(num);

}

unsigned long testText() {
  //tft.fillScreen(ILI9341_BLACK);
  unsigned long start = micros();
    tft.setTextSize(2);
  tft.setCursor(0, 0);
  tft.setTextColor(GREY);  
  tft.println("SYSTEMPO");

    tft.setCursor(95, 0);
  tft.setTextColor(BRIGHT);
  tft.println("SOLO");

    tft.setCursor(189, 0);
  tft.setTextColor(GREY);
  tft.println("SONGSTE");

  tft.setTextColor(DARKRED);
  tft.setCursor(142, 0);
  tft.println("EDIT");

tft.setCursor(272, 0);
  tft.setTextColor(BRIGHT);
  tft.println("PART");
  
  return micros() - start;
}