// UTFT_Demo_800x480 (C)2014 Henning Karlsen
// web: http://www.henningkarlsen.com/electronics
//
// This program is a demo of how to use most of the functions
// of the library with a supported display modules.
//
// This demo was made for modules with a screen resolution 
// of 800x480 pixels.
//
// This program requires the UTFT library.
//

#include <UTFT.h>

// Declare which fonts we will be using
extern uint8_t SmallFont[];

// Set the pins to the correct ones for your development shield
// ------------------------------------------------------------
// Standard Arduino Mega/Due shield            : <display model>,38,39,40,41
// CTE TFT LCD/SD Shield for Arduino Due       : <display model>,25,26,27,28
// Teensy 3.x TFT Test Board                   : <display model>,23,22, 3, 4
// ElecHouse TFT LCD/SD Shield for Arduino Due : <display model>,22,23,31,33
//
// Remember to change the model parameter to suit your display module!
UTFT myGLCD(ITDB50,38,39,40,41);

void setup()
{
  randomSeed(analogRead(0));
  
// Setup the LCD
  myGLCD.InitLCD();
  myGLCD.setFont(SmallFont);
}

void loop()
{
  int buf[798];
  int x, x2;
  int y, y2;
  int r;

// Clear the screen and draw the frame
  myGLCD.clrScr();

  myGLCD.setColor(255, 0, 0);
  myGLCD.fillRect(0, 0, 799, 13);
  myGLCD.setColor(64, 64, 64);
  myGLCD.fillRect(0, 466, 799, 479);
  myGLCD.setColor(255, 255, 255);
  myGLCD.setBackColor(255, 0, 0);
  myGLCD.print("* Universal Color TFT Display Library *", CENTER, 1);
  myGLCD.setBackColor(64, 64, 64);
  myGLCD.setColor(255,255,0);
  myGLCD.print("<http://electronics.henningkarlsen.com>", CENTER, 467);

  myGLCD.setColor(0, 0, 255);
  myGLCD.drawRect(0, 14, 799, 465);

// Draw crosshairs
  myGLCD.setColor(0, 0, 255);
  myGLCD.setBackColor(0, 0, 0);
  myGLCD.drawLine(399, 15, 399, 464);
  myGLCD.drawLine(1, 239, 798, 239);
  for (int i=9; i<790; i+=10)
    myGLCD.drawLine(i, 237, i, 242);
  for (int i=19; i<470; i+=10)
    myGLCD.drawLine(397, i, 402, i);

// Draw sin-, cos- and tan-lines  
  myGLCD.setColor(0,255,255);
  myGLCD.print("Sin", 5, 15);
  for (int i=1; i<798; i++)
  {
    myGLCD.drawPixel(i,239+(sin(((i*1.13)*3.14)/180)*200));
  }
  
  myGLCD.setColor(255,0,0);
  myGLCD.print("Cos", 5, 27);
  for (int i=1; i<798; i++)
  {
    myGLCD.drawPixel(i,239+(cos(((i*1.13)*3.14)/180)*200));
  }

  myGLCD.setColor(255,255,0);
  myGLCD.print("Tan", 5, 39);
  for (int i=1; i<798; i++)
  {
    myGLCD.drawPixel(i,239+(tan(((i*0.9)*3.14)/180)));
  }

  delay(2000);

  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);
  myGLCD.setColor(0, 0, 255);
  myGLCD.setBackColor(0, 0, 0);
  myGLCD.drawLine(399, 15, 399, 464);
  myGLCD.drawLine(1, 239, 798, 239);

// Draw a moving sinewave
  x=1;
  for (int i=1; i<(798*20); i++) 
  {
    x++;
    if (x==799)
      x=1;
    if (i>799)
    {
      if ((x==399)||(buf[x-1]==239))
        myGLCD.setColor(0,0,255);
      else
        myGLCD.setColor(0,0,0);
      myGLCD.drawPixel(x,buf[x-1]);
    }
    myGLCD.setColor(0,255,255);
    y=239+(sin(((i*1.65)*3.14)/180)*(200-(i / 100)));
    myGLCD.drawPixel(x,y);
    buf[x-1]=y;
  }

  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

// Draw some random filled rectangles
  for (int i=0; i<50; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(746);
    y=16+random(397);
    x2=x+50;
    y2=y+50;
    myGLCD.fillRect(x, y, x2, y2);
  }

  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

// Draw some random filled, rounded rectangles
  for (int i=0; i<50; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(746);
    y=16+random(397);
    x2=x+50;
    y2=y+50;
    myGLCD.fillRoundRect(x, y, x2, y2);
  }
  
  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

// Draw some random filled circles
  for (int i=0; i<50; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=27+random(746);
    y=41+random(397);
    myGLCD.fillCircle(x, y, 25);
  }
  
  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

// Draw some lines in a pattern
  myGLCD.setColor (255,0,0);
  for (int i=15; i<463; i+=5)
  {
    myGLCD.drawLine(1, i, (i*1.66)-10, 463);
  }
  myGLCD.setColor (255,0,0);
  for (int i=463; i>15; i-=5)
  {
    myGLCD.drawLine(798, i, (i*1.66)+30, 15);
  }
  myGLCD.setColor (0,255,255);
  for (int i=463; i>15; i-=5)
  {
    myGLCD.drawLine(1, i, 770-(i*1.66), 15);
  }
  myGLCD.setColor (0,255,255);
  for (int i=15; i<463; i+=5)
  {
    myGLCD.drawLine(798, i, 810-(i*1.66), 463);
  }
  
  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

// Draw some random circles
  for (int i=0; i<250; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=32+random(736);
    y=45+random(386);
    r=random(30);
    myGLCD.drawCircle(x, y, r);
  }

  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

// Draw some random rectangles
  for (int i=0; i<250; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(796);
    y=16+random(447);
    x2=2+random(796);
    y2=16+random(447);
    myGLCD.drawRect(x, y, x2, y2);
  }

  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

// Draw some random rounded rectangles
  for (int i=0; i<250; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(796);
    y=16+random(447);
    x2=2+random(796);
    y2=16+random(447);
    myGLCD.drawRoundRect(x, y, x2, y2);
  }

  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

  for (int i=0; i<250; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    x=2+random(796);
    y=16+random(447);
    x2=2+random(796);
    y2=16+random(447);
    myGLCD.drawLine(x, y, x2, y2);
  }

  delay(2000);
  
  myGLCD.setColor(0,0,0);
  myGLCD.fillRect(1,15,798,464);

  for (int i=0; i<10000; i++)
  {
    myGLCD.setColor(random(255), random(255), random(255));
    myGLCD.drawPixel(2+random(796), 16+random(447));
  }

  delay(2000);

  myGLCD.fillScr(0, 0, 255);
  myGLCD.setColor(255, 0, 0);
  myGLCD.fillRoundRect(320, 190, 479, 289);
  
  myGLCD.setColor(255, 255, 255);
  myGLCD.setBackColor(255, 0, 0);
  myGLCD.print("That's it!", CENTER, 213);
  myGLCD.print("Restarting in a", CENTER, 239);
  myGLCD.print("few seconds...", CENTER, 252);
  
  myGLCD.setColor(0, 255, 0);
  myGLCD.setBackColor(0, 0, 255);
  myGLCD.print("Runtime: (msecs)", CENTER, 450);
  myGLCD.printNumI(millis(), CENTER, 465);
  
  delay (10000);
}

