Method drawLine

src/DisplayManager.cpp:2570–2593

}

void DisplayManager_::drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint32_t color)
{
  int16_t dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1;
  int16_t dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1;
  int16_t err = dx + dy, e2;

  while (true)
  {
    matrix->drawPixel(x0, y0, color);
    if (x0 == x1 && y0 == y1)
      break;
    e2 = 2 * err;
    if (e2 >= dy)
    {
      err += dy;
      x0 += sx;
    }
    if (e2 <= dx)
    {
      err += dx;
      y0 += sy;
    }
  }
}

void DisplayManager_::drawRGBBitmap(int16_t x, int16_t y, const uint32_t *bitmap, int16_t w, int16_t h)
{