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+/* This file is part of Raul.
+ * Copyright (C) 2009 Dave Robillard <http://drobilla.net>
+ *
+ * Raul is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * Raul is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef RAUL_LOG_HPP
+#define RAUL_LOG_HPP
+
+#include <iostream>
+#include <sstream>
+
+namespace Raul {
+
+class LogBuffer : public std::streambuf
+{
+public:
+	enum Colour {
+		DEFAULT = 0,
+		RED = 31,
+		GREEN,
+		YELLOW,
+		BLUE,
+		MAGENTA,
+		CYAN,
+		WHITE
+	};
+
+	LogBuffer(const char* prefix="", Colour colour=DEFAULT)
+		: _prefix(prefix)
+		, _colour(colour)
+		, _out(std::cout)
+	{}
+
+	/** Change the colour of the output, e.g. out << colour(RED) << "red" << endl; */
+	const char* colour(Colour c);
+
+	/** Reset the colour of the output, e.g. out << plain() << "plain" << endl; */
+	const char* plain();
+
+protected:
+	int_type overflow(int_type c) {
+		if (c == '\n')
+			emit();
+		else if (c != traits_type::eof())
+			_line += c;
+
+		return c;
+	}
+
+	int sync() {
+		if (!_line.empty())
+			emit();
+		return 0;
+	}
+
+private:
+	void emit();
+
+	const char*   _prefix;
+	Colour        _colour;
+	std::string   _line;
+	std::ostream& _out;
+};
+
+
+class NullBuffer : public std::streambuf
+{
+protected:
+	int_type overflow(int_type c) { return c; }
+	int      sync()               { return 0; }
+};
+
+
+extern std::ostream info;
+extern std::ostream warn;
+extern std::ostream error;
+extern std::ostream debug;
+
+
+} // namespace Raul
+
+#endif // RAUL_LOG_HPP