#include <retroTerm.h> //Include terminal library
retroTerm terminal; //Create a terminal instance
uint8_t buttonId = 0; //Record the button ID globally
uint32_t i = 0; //Record the number of clicks
uint16_t colors[] = {COLOR_RED, COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE,COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE};

uint8_t red = 0;
uint8_t green = 0;
uint8_t blue = 0;
char brush = '.';

#include <Adafruit_NeoPixel.h>
//
// globals
//
#define numpixels 1
#define pixelpower 11
#define pixelpin 12
#define bufsize 25
char buf[bufsize];
int count=0;
//
// setup
//
Adafruit_NeoPixel pixel(numpixels,pixelpin,NEO_GRB+NEO_KHZ800);

void setup() {
  Serial.begin(115200);   //Initialise the Serial stream
  pixel.begin();
  pinMode(pixelpower,OUTPUT);
  digitalWrite(pixelpower,HIGH);
  terminal.begin(Serial); //Initialise the library
  uint32_t timeout = millis();
  while(millis() - timeout < 30000ul && not terminal.keyPressed())
  {
    terminal.houseKeeping();
  }
  terminal.eraseScreen(); //Clear the screen
  terminal.hideCursor(); //Hide the terminal cursor
  terminal.enableMouse(); //Capture the mouse so it can be used with widgets
  terminal.setScrollWindow(4,12); //Set up somewhere to show the events without disrupting the button
  buttonId = terminal.newButton(1, 1, 15, 3, F("Change color"), COLOUR_GREEN, OUTER_BOX | BOX_SINGLE_LINE); //Create a green button in a box
  terminal.widgetShortcutKey(buttonId,f1Pressed); //Assign a shortcut key of F1
  terminal.showWidget(buttonId); //Make the button visible, all widgets start 'invisible' for later display
  terminal.moveCursorTo(1,terminal.lines());

  red = terminal.newRadioButton(terminal.columns()/3 - 1, 15, 16, 5, F("."),   COLOUR_WHITE, OUTER_BOX | SHORTCUT_INLINE);    //Create three new widgets and record the IDs
  green = terminal.newRadioButton(terminal.columns()/3,     17, 14, 1, F("X"), COLOUR_WHITE, SHORTCUT_INLINE);  //The method returns 0 if it fails
  blue = terminal.newRadioButton(terminal.columns()/3,     18, 14, 1, F("O"),  COLOUR_WHITE, SHORTCUT_INLINE);   //Colour is the colour of the frame, lettering can be different
  if(red)
  {
    terminal.labelAttributes(red, COLOUR_RED | ATTRIBUTE_BRIGHT);     //Make the label text more emphasised, for better contrast
    terminal.showWidget(red);                                       //Make this button visible
    terminal.widgetShortcutKey(red,f7Pressed);
    terminal.widgetValue(red,true);                                         //Make this button selected at the start. All visible radio buttons are in a single group
  }
  if(green)
  {
    terminal.labelAttributes(green, COLOUR_GREEN | ATTRIBUTE_BRIGHT); //Make the label text more emphasised, for better contrast
    terminal.showWidget(green);                                     //Make this button visible
    terminal.widgetShortcutKey(green,f8Pressed);
  }
  if(blue)
  {
    terminal.labelAttributes(blue, COLOUR_BLUE | ATTRIBUTE_BRIGHT);    //Make the label text more emphasised, for better contrast
    terminal.showWidget(blue);                                       //Make this button visible
    terminal.widgetShortcutKey(blue,f9Pressed);
  }
}

void loop() {
  terminal.houseKeeping();
  if(terminal.widgetClicked(buttonId)) //This clears the 'click' on checking
    {
      i++;

      if(i>6){
        i = 0;
      }

      switch(i) {           // Start the new animation...
        case 0:
          pixel.setPixelColor(0,pixel.Color(255,0, 0));
          pixel.show();    // Red
          break;
        case 1:
          pixel.setPixelColor(0,pixel.Color(0,255,0));
          pixel.show();   // Green
          break;
        case 2:
          pixel.setPixelColor(0,pixel.Color(255,255,0));
          pixel.show();   // Yellow
          break;
        case 3:
          pixel.setPixelColor(0,pixel.Color(0,0,255));
          pixel.show();    // Blue
          break;
        case 4:
          pixel.setPixelColor(0,pixel.Color(255,0, 255));
          pixel.show(); // Magenta
          break;
        case 5:
          pixel.setPixelColor(0,pixel.Color(0,255,255));
          pixel.show(); // Cyan
          break;
        case 6:
          pixel.setPixelColor(0,pixel.Color(255,255,255));
          pixel.show(); // White
          break;
    }
    }
  if(terminal.mouseButtonDown())
    {
      terminal.foregroundColour(colors[i]);
      terminal.printAt(terminal.mouseColumn(),terminal.mouseRow(),brush);

    }
  if(terminal.widgetClicked(red))
    {
      if(terminal.widgetValue(red))
      {
        brush = '.';
      }
    }
    if(terminal.widgetClicked(green))
    {
      if(terminal.widgetValue(green))
      {
        brush = 'X';
      }
    }
    if(terminal.widgetClicked(blue))
    {
      if(terminal.widgetValue(blue))
      {
        brush = 'O';
      }
    }
    terminal.houseKeeping();  //You MUST run housekeeping to show any changes!
}