//Helpers
String current_string = "";

//Display Text
void display_text(String text1, String text2){
  if (current_string != text1 + text2){
    //write_log("Display:");
    lcd.clear();
    lcd.setCursor(freespace(text1), 0);
    lcd.print(text1);
    //write_log(text1);
    lcd.setCursor(freespace(text2), 1);
    lcd.print(text2);
    //write_log(text2);
    //ledMatrix.clear();
    //ledMatrix.setText(text);
    //ledMatrix.drawText();
    //ledMatrix.commit();
    current_string = text1 + text2;
  }
}
//Calculate space
int freespace(String text){
  if (text.length() > 14)
  {
    return 0;
  }
  else{
    int freespace = 16 - text.length();
    freespace = freespace / 2;
    return freespace;
  }
}

bool light_on = true;

void toggle_bg_light(){
  if (light_on == true){
    setBrightnes(false);
  }
  else{
    setBrightnes(true);
  }
}

void setBrightnes(bool on_off){
  if (on_off == true){
    lcd.backlight();
    light_on = true;
  }
  else{
    lcd.noBacklight();
    light_on = false;
  }
}

void delay_gui(int millis_s){
  block_gui =  millis() + millis_s;
}

void release_gui(int currentMillis){
  if (block_gui < currentMillis)
    block_gui = -1;
  else
    return;
}