mirror of
https://github.com/Ardour/ardour.git
synced 2025-12-31 02:47:43 +01:00
9ea281bdea
git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@2477 d708f5d6-7413-0410-9779-e7cbd77b26cf
121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
/*
|
|
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__
|
|
|