/*************************************************************************/ /* undo_redo.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #ifndef UNDO_REDO_H #define UNDO_REDO_H #include "object.h" #include "resource.h" class UndoRedo : public Object { OBJ_TYPE(UndoRedo,Object); public: typedef void (*CommitNotifyCallback)(void *p_ud,const String& p_name); private: struct Operation { enum Type { TYPE_METHOD, TYPE_PROPERTY, TYPE_REFERENCE }; Type type; Ref<Resource> resref; ObjectID object; String name; Variant args[VARIANT_ARG_MAX]; }; struct Action { String name; List<Operation> do_ops; List<Operation> undo_ops; }; Vector<Action> actions; int current_action; int action_level; int max_steps; bool merging; uint64_t version; void _pop_history_tail(); void _process_operation_list(List<Operation>::Element *E); void _discard_redo(); CommitNotifyCallback callback; void* callback_ud; public: void create_action(const String& p_name="",bool p_mergeable=false); void add_do_method(Object *p_object,const String& p_method,VARIANT_ARG_LIST); void add_undo_method(Object *p_object,const String& p_method,VARIANT_ARG_LIST); void add_do_property(Object *p_object,const String& p_property,const Variant& p_value); void add_undo_property(Object *p_object,const String& p_property,const Variant& p_value); void add_do_reference(Object *p_object); void add_undo_reference(Object *p_object); void commit_action(); void redo(); void undo(); String get_current_action_name() const; void clear_history(); void set_max_steps(int p_max_steps); int get_max_steps() const; uint64_t get_version() const; void set_commit_notify_callback(CommitNotifyCallback p_callback,void* p_ud); UndoRedo(); ~UndoRedo(); }; #endif // UNDO_REDO_H