#ifndef LOGGER_INCLUDED
#define LOGGER_INCLUDED

#include "tcommon.h"

#undef DVAPI
#undef DVVAR
#ifdef TOONZLIB_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif

class DVAPI Logger
{ // singleton
public:
	class Listener
	{
	public:
		virtual void onAdd() = 0;
		virtual ~Listener() {}
	};

private:
	Logger();
	std::vector<Listener *> m_listeners;
	std::vector<std::wstring> m_rows;

public:
	static Logger *instance();

	void add(std::wstring s);
	void clear();

	int getRowCount() const;
	std::wstring getRow(int i) const;

	void addListener(Listener *listener);
	void removeListener(Listener *listener);
};

#endif