+
/*
Copyright (C) 2006 Paul Davis
Author: Hans Fugal
#ifndef __lib_pbd_command_h__
#define __lib_pbd_command_h__
-#include <pbd/statefuldestructible.h>
+#include <string>
+
+#include "pbd/signals.h"
+#include "pbd/statefuldestructible.h"
-class Command : public PBD::StatefulDestructible
+class Command : public PBD::StatefulDestructible, public PBD::ScopedConnectionList
{
public:
- virtual ~Command() {}
+ virtual ~Command() { /* NOTE: derived classes must call drop_references() */ }
virtual void operator() () = 0;
void set_name (const std::string& str) { _name = str; }
const std::string& name() const { return _name; }
-
+
virtual void undo() = 0;
virtual void redo() { (*this)(); }
virtual XMLNode &get_state();
- virtual int set_state(const XMLNode&) { /* noop */ return 0; }
+ virtual int set_state(const XMLNode&, int /*version*/) { /* noop */ return 0; }
protected:
Command() {}