wordclock/libraries/States/ViewLEDState.cpp

#include <ViewStates.h>

ViewLEDState::ViewLEDState(){

};

void ViewLEDState::render(uint8_t matrix[121], ControlStates controlState)
{

  if (controlState != ControlStates::COLOR_R && controlState != ControlStates::COLOR_G && controlState != ControlStates::COLOR_B)
  {
    int const color = (millis() / 500) % 256;

    for (int i = 0; i < 121; i++)
    {
      matrix[i] = color - i % 256;
    }
  }
  else
  {
    // special color edit view
    bool const blink = (millis() / CONTROL_BLINK_INTERVAL) % 2 == 0;

    if (controlState != ControlStates::COLOR_R || blink)
    {
      uint8_t red = color >> 5;
      matrix[0] = 0x07 << 5;
      matrix[10] = 0x07 << 5;
      matrix[11] = 0x07 << 5;
      matrix[21] = 0x07 << 5;
      for (int i = 0; i < red; i++)
      {
        // red
        matrix[i + 2] = red << 5;
        matrix[i + 13] = red << 5;
      }
    }

    if (controlState != ControlStates::COLOR_G || blink)
    {
      uint8_t green = (color >> 2) & 0x07;
      matrix[22] = 0x07 << 2;
      matrix[32] = 0x07 << 2;
      matrix[33] = 0x07 << 2;
      matrix[43] = 0x07 << 2;
      for (int i = 0; i < green; i++)
      {
        // green
        matrix[i + 24] = green << 2;
        matrix[i + 35] = green << 2;
      }
    }

    if (controlState != ControlStates::COLOR_B || blink)
    {

      uint8_t blue = color & 0x03;
      matrix[44] = 0x03;
      matrix[54] = 0x03;
      matrix[55] = 0x03;
      matrix[65] = 0x03;
      for (int i = 0; i < blue; i++)
      {
        // blue
        matrix[i + 46] = blue;
        matrix[i + 57] = blue;
      }
    }

    for (int i = 77; i < 121; i++)
    {
      matrix[i] = color;
    }
  }
}