135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
/*************************************************************************/
|
|
/* undo_redo.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
|
|
/* */
|
|
/* 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 {
|
|
|
|
GDCLASS(UndoRedo, Object);
|
|
OBJ_SAVE_TYPE(UndoRedo);
|
|
|
|
public:
|
|
enum MergeMode {
|
|
MERGE_DISABLE,
|
|
MERGE_ENDS,
|
|
MERGE_ALL
|
|
};
|
|
|
|
typedef void (*CommitNotifyCallback)(void *p_ud, const String &p_name);
|
|
Variant _add_do_method(const Variant **p_args, int p_argcount, Variant::CallError &r_error);
|
|
Variant _add_undo_method(const Variant **p_args, int p_argcount, Variant::CallError &r_error);
|
|
|
|
typedef void (*MethodNotifyCallback)(void *p_ud, Object *p_base, const StringName &p_name, VARIANT_ARG_DECLARE);
|
|
typedef void (*PropertyNotifyCallback)(void *p_ud, Object *p_base, const StringName &p_property, const Variant &p_value);
|
|
|
|
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;
|
|
uint64_t last_tick;
|
|
};
|
|
|
|
Vector<Action> actions;
|
|
int current_action;
|
|
int action_level;
|
|
int max_steps;
|
|
MergeMode merge_mode;
|
|
uint64_t version;
|
|
|
|
void _pop_history_tail();
|
|
void _process_operation_list(List<Operation>::Element *E);
|
|
void _discard_redo();
|
|
|
|
CommitNotifyCallback callback;
|
|
void *callback_ud;
|
|
void *method_callbck_ud;
|
|
void *prop_callback_ud;
|
|
|
|
MethodNotifyCallback method_callback;
|
|
PropertyNotifyCallback property_callback;
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
public:
|
|
void create_action(const String &p_name = "", MergeMode p_mode = MERGE_DISABLE);
|
|
|
|
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);
|
|
|
|
void set_method_notify_callback(MethodNotifyCallback p_method_callback, void *p_ud);
|
|
void set_property_notify_callback(PropertyNotifyCallback p_property_callback, void *p_ud);
|
|
|
|
UndoRedo();
|
|
~UndoRedo();
|
|
};
|
|
|
|
VARIANT_ENUM_CAST(UndoRedo::MergeMode);
|
|
|
|
#endif // UNDO_REDO_H
|