- virtual void undo() = 0;
- virtual void redo() { (*this)(); }
- virtual XMLNode &get_state();
- virtual int set_state(const XMLNode&) { /* noop */ return 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&, int /*version*/) { /* noop */ return 0; }
+
+ virtual bool empty () const {
+ return false;
+ }
+
+protected:
+ Command() {}
+ Command(const std::string& name) : _name(name) {}
+
+ std::string _name;