//Code By A.Tedds.
//Using Adafruit Library Files. Thank you.

//Usage of tft.drawRect(start position width 0-240,Start position Height 0-320,size 0-240,size 0-320, Color)

//#define DEBUG // Gives stats on serial display.

#include <Adafruit_GFX_AS.h>    // Core graphics library
#include <Adafruit_ILI9341_8bit_AS.h> // Hardware-specific library

#define LCD_CS A3 // Chip Select goes to Analog 3
#define LCD_CD A2 // Command/Data goes to Analog 2
#define LCD_WR A1 // LCD Write goes to Analog 1
#define LCD_RD A0 // LCD Read goes to Analog 0
#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin


// Assign human-readable names to some common 16-bit color values:

// With Changes for Graphic color inversion !!

#define	BLACK   0xFFFF
#define	BLUE    0xFFE0
#define	GREEN   0xF81F
#define CYAN    0xF800
#define GRAY1	0x8410  
#define	RED     0x07FF
//#define BRIGHT_RED 0x????
#define ORANGE          0xFD20
#define GREENYELLOW     0xAFE5 
#define DARKGREEN       0x03E0
#define GRAY2	0x4208
#define MAGENTA 0x07E0
#define YELLOW  0x001F
#define WHITE   0x0000

Adafruit_ILI9341_8bit_AS tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);

void setup(void)
{
  Serial.begin(9600);
  Serial.println("8 Bit LCD test!");
  tft.reset();
  delay(10);
  tft.begin(0x9341);
  tft.fillScreen(BLACK);
}

void loop(void) 
{
testtext(YELLOW); //Text Color
delay(4000);
testfillrects(BLUE,RED);//Color1,Color2
testFillRoundRect();
testRoundRect();
testtriangles();
testfilltriangles();
testdrawcircles(20,RED);//Size and Color
testfillcircles(20,GREEN);//size and color
testBars();
testlines(60);
}



void testFillRoundRect()
{
  tft.fillScreen(BLACK);
  
  for (uint16_t x=tft.width(); x > 20 ; x-=6)
 {
    tft.fillRoundRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, x/8,  tft.color565(0, x, 0));
 }
}

void testRoundRect() {
  tft.fillScreen(BLACK);
  
  for (uint16_t x=0; x < tft.width(); x+=6) {
    tft.drawRoundRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, x/8, tft.color565(x, 0, 0));
 }
}

void testtriangles() {
  tft.fillScreen(BLACK);
  for (uint16_t i=0; i<tft.width()/2; i+=5) {
    tft.drawTriangle(tft.width()/2, tft.height()/2-i,
                     tft.width()/2-i, tft.height()/2+i,
                     tft.width()/2+i, tft.height()/2+i, tft.color565(0, 0, i));
  }
}

void testfilltriangles() {
  tft.fillScreen(BLACK);
  
  for (uint16_t i=tft.width()/2; i>10; i-=5) {
    tft.fillTriangle(tft.width()/2, tft.height()/2-i,
                     tft.width()/2-i, tft.height()/2+i,
                     tft.width()/2+i, tft.height()/2+i, 
                     tft.color565(0, i, i));
    tft.drawTriangle(tft.width()/2, tft.height()/2-i,
                     tft.width()/2-i, tft.height()/2+i,
                     tft.width()/2+i, tft.height()/2+i, tft.color565(i, i, 0));    
  }
}
void testtext(uint16_t color)
 {
  tft.fillScreen(BLACK);
  tft.setCursor(10, 10);
  tft.setTextColor(color);
  tft.setTextSize(3);
  tft.println("Hello World!");
  // tft.setTextSize(3);
  //tft.println(1234.56);
  //tft.setTextSize(3);
  //tft.println(0xDEADBEEF, HEX);
}

void testfillcircles(uint8_t radius, uint16_t color) {
  for (uint16_t x=radius; x < tft.width(); x+=radius*2) {
    for (uint16_t y=radius; y < tft.height(); y+=radius*2) {
      tft.fillCircle(x, y, radius, color);
    }
  }  
}

void testdrawcircles(uint8_t radius, uint16_t color) {
  for (uint16_t x=0; x < tft.width()+radius; x+=radius*2) {
    for (uint16_t y=0; y < tft.height()+radius; y+=radius*2) {
      tft.drawCircle(x, y, radius, color);
    }
  }  
}


void testfillrects(uint16_t color1, uint16_t color2) {
 tft.fillScreen(BLACK);
 for (uint16_t x=tft.width()-1; x > 6; x-=6) {
   //Serial.println(x, DEC);
   tft.fillRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color1);
   tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color2);
 }
}

void testdrawrects(uint16_t color) {
 tft.fillScreen(BLACK);
 for (uint16_t x=0; x < tft.width(); x+=6) {
   tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color);
 }
}

void testfastlines(uint16_t color1, uint16_t color2) {
   tft.fillScreen(BLACK);
   for (uint16_t y=0; y < tft.height(); y+=5) {
     tft.drawFastHLine(0, y, tft.width(), color1);
   }
   for (uint16_t x=0; x < tft.width(); x+=5) {
     tft.drawFastVLine(x, 0, tft.height(), color2);
   }
  
}

void testlines(uint16_t color) {
   tft.fillScreen(BLACK);
   for (uint16_t x=0; x < tft.width(); x+=6) {
     tft.drawLine(0, 0, x, tft.height()-1, color);
   }
   for (uint16_t y=0; y < tft.height(); y+=6) {
     tft.drawLine(0, 0, tft.width()-1, y, color);
   }
   
   tft.fillScreen(BLACK);
   for (uint16_t x=0; x < tft.width(); x+=6) {
     tft.drawLine(tft.width()-1, 0, x, tft.height()-1, color);
   }
   for (uint16_t y=0; y < tft.height(); y+=6) {
     tft.drawLine(tft.width()-1, 0, 0, y, color);
   }
   
   tft.fillScreen(BLACK);
   for (uint16_t x=0; x < tft.width(); x+=6) {
     tft.drawLine(0, tft.height()-1, x, 0, color);
   }
   for (uint16_t y=0; y < tft.height(); y+=6) {
     tft.drawLine(0, tft.height()-1, tft.width()-1, y, color);
   }

   tft.fillScreen(BLACK);
   for (uint16_t x=0; x < tft.width(); x+=6) {
     tft.drawLine(tft.width()-1, tft.height()-1, x, 0, color);
   }
   for (uint16_t y=0; y < tft.height(); y+=6) {
     tft.drawLine(tft.width()-1, tft.height()-1, 0, y, color);
   }
}


void testBars() 
{
    tft.fillScreen(BLACK);
    tft.fillRect(0, 0, 239, 40,BLACK);
    tft.fillRect(0, 40, 239, 40,BLUE);
    tft.fillRect(0, 80, 239, 40,RED);
    tft.fillRect(0, 120, 239, 40,MAGENTA);
    tft.fillRect(0, 160, 239, 40,GREEN);
    tft.fillRect(0, 200, 239, 40,CYAN);
    tft.fillRect(0, 240, 239, 40,YELLOW);
    tft.fillRect(0, 280, 239, 40,WHITE);
    delay(2000); 
}