ardour/libs/pbd3/pbd/undo_command.h
Hans Fugal 5b289d3006 r115@gandalf: fugalh | 2006-06-23 12:36:05 -0600
pass the object instead of an id


git-svn-id: svn://localhost/ardour2/branches/undo@654 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-06-29 18:45:41 +00:00

104 lines
3 KiB
C++

/*
Copyright (C) 2006 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.
$Id: /local/undo/libs/pbd3/pbd/undo.h 59 2006-06-15T18:16:20.960977Z fugalh $
*/
#ifndef __lib_pbd_undo_command_h__
#define __lib_pbd_undo_command_h__
#include <sigc++/slot.h>
#include <sigc++/bind.h>
#include <list>
#include <string>
#include <pbd/serializable.h>
using sigc::nil;
using sigc::slot;
using sigc::bind;
using sigc::mem_fun;
using std::list;
using std::string;
/* One of the joys of templates is that you have to do everything right here
* in the header file; you can't split this to make undo_command.cc */
template <class T_obj, class T1=nil, class T2=nil, class T3=nil, class T4=nil>
class UndoCommand
{
public:
/* It only makes sense to use the constructor corresponding to the
* template given. e.g.
*
* UndoCommand<Foo> cmd(id, key, foo_instance);
*/
UndoCommand(T_obj &object, string key)
: _obj(object), _key(key)
{
_slot = mem_fun( _obj, get_method(_key) );
}
UndoCommand(T_obj &object, string key, T1 &arg1)
: _obj(object), _key(key)
{
_slot = bind( mem_fun( _obj, get_method(_key) ),
arg1);
_args.push_back(&arg1);
}
UndoCommand(T_obj &object, string key, T1 &arg1, T2 &arg2)
: _obj(object), _key(key)
{
_slot = bind( mem_fun( _obj, get_method(_key) ),
arg1, arg2);
_args.push_back(&arg1);
_args.push_back(&arg2);
}
UndoCommand(T_obj &object, string key, T1 &arg1, T2 &arg2, T3 &arg3)
: _obj(object), _key(key)
{
_slot = bind( mem_fun( _obj, get_method(_key) ),
arg1, arg2, arg3);
_args.push_back(&arg1);
_args.push_back(&arg2);
_args.push_back(&arg3);
}
UndoCommand(T_obj &object, string key, T1 &arg1, T2 &arg2, T3 &arg3, T4 &arg4)
: _obj(object), _key(key)
{
_slot = bind( mem_fun( _obj, get_method(_key) ),
arg1, arg2, arg4);
_args.push_back(&arg1);
_args.push_back(&arg2);
_args.push_back(&arg3);
_args.push_back(&arg4);
}
void operator() () { return _slot(); }
XMLNode &serialize();
protected:
template <class T_method> T_method &get_method(string);
T_obj &_obj;
string _key;
slot<void> _slot;
// Note that arguments must be instances of Serializable or this will
// rightly cause a compiler error when compiling the constructor.
list<Serializable*> _args;
};
#endif // __lib_pbd_undo_command_h__