fix up translation domains to reflect v2; functor command header

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@2477 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 121 insertions, 0 deletions

diff --git a/libs/pbd/pbd/functor_command.h b/libs/pbd/pbd/functor_command.h
new file mode 100644
index 0000000000..e335f4418e
--- /dev/null
+++ b/libs/pbd/pbd/functor_command.h
@@ -0,0 +1,121 @@
+/* 
+   Copyright (C) 2007 Paul Davis
+
+	This program 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.
+
+	This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef __lib_pbd_functor_command_h__
+#define __lib_pbd_functor_command_h__
+
+#include <iostream>
+#include <sstream>
+#include <string>
+#include <map>
+
+#include <pbd/xml++.h>
+#include <pbd/shiva.h>
+#include <pbd/command.h>
+#include <pbd/failed_constructor.h>
+
+/** This command class is initialized 
+ */
+
+namespace PBD {
+
+template <class obj_type, class arg_type>
+class FunctorCommand : public Command
+{
+	private:
+	typedef void (obj_type::*functor_type)(arg_type);
+	typedef std::map< std::string, functor_type > FunctorMap;
+	typedef typename FunctorMap::iterator FunctorMapIterator;
+
+	public:
+	FunctorCommand(
+		std::string functor,
+		obj_type object,
+		arg_type b,
+		arg_type a
+	) : functor_name(functor), 
+		object(object),
+		before(b),
+		after(a) 
+	{
+		method = find_functor(functor);
+
+		/* catch destruction of the object */
+		new PBD::Shiva< obj_type, FunctorCommand<obj_type, arg_type> > (object, *this);
+	}
+
+	~FunctorCommand() {
+		GoingAway();
+	}
+
+	void operator() () {
+		(object.*method) (after);
+	}
+
+	void undo() { 
+		(object.*method) (before);
+	}
+
+	virtual XMLNode &get_state() {
+		std::stringstream ss;
+		
+		XMLNode *node = new XMLNode("FunctorCommand");
+		node->add_property("functor", functor_name);
+		ss << before;
+		node->add_property("before", ss.str());
+		ss.clear ();
+		ss << after;
+		node->add_property("after", ss.str());
+
+		return *node;
+	}
+
+	static void register_functor(std::string name, functor_type f) {
+		functor_map[name] = f;
+	}
+
+	private:
+	static functor_type find_functor(std::string name) {
+		FunctorMapIterator iter;
+
+		if((iter = functor_map.find(name)) == functor_map.end()) {
+			throw failed_constructor();
+		}
+
+		return iter->second;
+	}
+
+	protected:
+	std::string functor_name;
+	obj_type &object;
+	arg_type before;
+	arg_type after;
+	functor_type method;
+	static FunctorMap functor_map;
+};
+
+// static initialization of functor_map... 
+template <class obj_type, class arg_type>
+typename FunctorCommand<obj_type, arg_type>::FunctorMap
+FunctorCommand<obj_type, arg_type>::functor_map;
+
+};
+
+#endif // __lib_pbd_functor_command_h__
+