#include "toonz/logger.h"

Logger::Logger() {}

Logger *Logger::instance() {

  static Logger _instance;

  return &_instance;

}

void Logger::add(std::wstring s) {

  m_rows.push_back(s);

  for (int i = 0; i < (int)m_listeners.size(); i++) m_listeners[i]->onAdd();

}

void Logger::clear() { m_rows.clear(); }

int Logger::getRowCount() const { return m_rows.size(); }

std::wstring Logger::getRow(int i) const {

  if (0 <= i && i < (int)m_rows.size())

    return m_rows[i];

  else

    return L"";

}

void Logger::addListener(Listener *listener) {

  if (std::find(m_listeners.begin(), m_listeners.end(), listener) ==

      m_listeners.end())

    m_listeners.push_back(listener);

}

void Logger::removeListener(Listener *listener) {

  m_listeners.erase(

      std::remove(m_listeners.begin(), m_listeners.end(), listener),

      m_listeners.end());

}