New ingen module (library, not e.g. LV2 plugin) design.

Much cleaner interface and general usage of Ingen as a library.


git-svn-id: http://svn.drobilla.net/lad/trunk/raul@2314 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 104 insertions, 0 deletions

diff --git a/raul/Configuration.hpp b/raul/Configuration.hpp
new file mode 100644
index 0000000..5c9ec4b
--- /dev/null
+++ b/raul/Configuration.hpp
@@ -0,0 +1,104 @@
+/* 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_CONFIGURATION_HPP
+#define RAUL_CONFIGURATION_HPP
+
+#include <map>
+#include <string>
+#include <list>
+#include <ostream>
+#include <exception>
+#include "raul/Atom.hpp"
+
+namespace Raul {
+
+/** Program configuration (command line options and/or configuration file).
+ *
+ * \ingroup raul
+ */
+class Configuration {
+public:
+	Configuration(const std::string& shortdesc, const std::string& desc)
+		: _shortdesc(shortdesc)
+		, _desc(desc)
+		, _max_name_length(0)
+	{}
+
+	Configuration& add(
+			const std::string& name,
+			char               letter,
+			const std::string& desc,
+			const Atom::Type   type,
+			const Atom&        value);
+
+	void print_usage(const std::string& program, std::ostream& os);
+
+	struct CommandLineError : public std::exception {
+		CommandLineError(const std::string& m) : msg(m) {}
+		~CommandLineError() throw() {}
+		const char* what() const throw() { return msg.c_str(); }
+		std::string msg;
+	};
+
+	void parse(int argc, char** argv) throw (CommandLineError);
+
+	void print(std::ostream& os, const std::string mime_type="text/plain") const;
+
+	const Raul::Atom& option(const std::string& long_name);
+
+private:
+	struct Option {
+	public:
+		Option(const std::string& n, char l, const std::string& d,
+		       const Atom::Type type, const Raul::Atom& def)
+			: name(n), letter(l), desc(d), type(type), default_value(def), value(def)
+		{}
+
+		std::string name;
+		char        letter;
+		std::string desc;
+		Atom::Type  type;
+		Raul::Atom  default_value;
+		Raul::Atom  value;
+	};
+
+	struct OptionNameOrder {
+		inline bool operator()(const Option& a, const Option& b) {
+			return a.name < b.name;
+		}
+	};
+
+	typedef std::map<std::string, Option> Options;
+	typedef std::map<char, std::string>   ShortNames;
+	typedef std::list<std::string>        Files;
+
+	int set_value_from_string(Configuration::Option& option, const std::string& value)
+			throw (Configuration::CommandLineError);
+
+	const std::string _shortdesc;
+	const std::string _desc;
+	Options           _options;
+	ShortNames        _short_names;
+	Files             _files;
+	size_t            _max_name_length;
+};
+
+} // namespace Raul
+
+#endif // RAUL_CONFIGURATION_HPP
+