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Diffstat (limited to 'core/undo_redo.h')
| -rw-r--r-- | core/undo_redo.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/core/undo_redo.h b/core/undo_redo.h new file mode 100644 index 0000000000..ff729e1767 --- /dev/null +++ b/core/undo_redo.h @@ -0,0 +1,113 @@ +/*************************************************************************/ +/* 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 |