140 lines
4.6 KiB
C++
140 lines
4.6 KiB
C++
/*************************************************************************/
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/* undo_redo.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef UNDO_REDO_H
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#define UNDO_REDO_H
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#include "object.h"
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#include "resource.h"
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class UndoRedo : public Object {
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OBJ_TYPE(UndoRedo,Object);
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OBJ_SAVE_TYPE( UndoRedo );
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public:
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enum MergeMode {
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MERGE_DISABLE,
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MERGE_ENDS,
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MERGE_ALL
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};
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typedef void (*CommitNotifyCallback)(void *p_ud,const String& p_name);
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Variant _add_do_method(const Variant** p_args, int p_argcount, Variant::CallError& r_error);
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Variant _add_undo_method(const Variant** p_args, int p_argcount, Variant::CallError& r_error);
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typedef void (*MethodNotifyCallback)(void *p_ud,Object*p_base,const StringName& p_name,VARIANT_ARG_DECLARE);
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typedef void (*PropertyNotifyCallback)(void *p_ud,Object*p_base,const StringName& p_property,const Variant& p_value);
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private:
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struct Operation {
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enum Type {
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TYPE_METHOD,
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TYPE_PROPERTY,
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TYPE_REFERENCE
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};
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Type type;
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Ref<Resource> resref;
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ObjectID object;
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String name;
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Variant args[VARIANT_ARG_MAX];
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};
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struct Action {
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String name;
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List<Operation> do_ops;
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List<Operation> undo_ops;
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};
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Vector<Action> actions;
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int current_action;
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int action_level;
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int max_steps;
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MergeMode merge_mode;
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uint64_t version;
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void _pop_history_tail();
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void _process_operation_list(List<Operation>::Element *E);
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void _discard_redo();
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CommitNotifyCallback callback;
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void* callback_ud;
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void* method_callbck_ud;
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void* prop_callback_ud;
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MethodNotifyCallback method_callback;
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PropertyNotifyCallback property_callback;
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protected:
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static void _bind_methods();
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public:
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void create_action(const String& p_name="",MergeMode p_mode=MERGE_DISABLE);
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void add_do_method(Object *p_object,const String& p_method,VARIANT_ARG_LIST);
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void add_undo_method(Object *p_object,const String& p_method,VARIANT_ARG_LIST);
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void add_do_property(Object *p_object,const String& p_property,const Variant& p_value);
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void add_undo_property(Object *p_object,const String& p_property,const Variant& p_value);
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void add_do_reference(Object *p_object);
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void add_undo_reference(Object *p_object);
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void commit_action();
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void redo();
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void undo();
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String get_current_action_name() const;
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void clear_history();
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void set_max_steps(int p_max_steps);
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int get_max_steps() const;
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uint64_t get_version() const;
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void set_commit_notify_callback(CommitNotifyCallback p_callback,void* p_ud);
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void set_method_notify_callback(MethodNotifyCallback p_method_callback,void* p_ud);
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void set_property_notify_callback(PropertyNotifyCallback p_property_callback,void* p_ud);
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UndoRedo();
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~UndoRedo();
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};
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VARIANT_ENUM_CAST( UndoRedo::MergeMode );
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#endif // UNDO_REDO_H
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