#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());
}