mirror of
https://github.com/godotengine/godot.git
synced 2024-11-25 21:52:51 +00:00
1426cd3b3a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see". Backported from #70885.
532 lines
16 KiB
C++
532 lines
16 KiB
C++
/**************************************************************************/
|
|
/* undo_redo.cpp */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* 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. */
|
|
/**************************************************************************/
|
|
|
|
#include "undo_redo.h"
|
|
|
|
#include "core/os/os.h"
|
|
#include "core/resource.h"
|
|
|
|
void UndoRedo::Operation::delete_reference() {
|
|
if (type != Operation::TYPE_REFERENCE) {
|
|
return;
|
|
}
|
|
if (ref.is_valid()) {
|
|
ref.unref();
|
|
} else {
|
|
Object *obj = ObjectDB::get_instance(object);
|
|
if (obj) {
|
|
memdelete(obj);
|
|
}
|
|
}
|
|
}
|
|
|
|
void UndoRedo::_discard_redo() {
|
|
if (current_action == actions.size() - 1) {
|
|
return;
|
|
}
|
|
|
|
for (int i = current_action + 1; i < actions.size(); i++) {
|
|
for (List<Operation>::Element *E = actions.write[i].do_ops.front(); E; E = E->next()) {
|
|
E->get().delete_reference();
|
|
}
|
|
//ERASE do data
|
|
}
|
|
|
|
actions.resize(current_action + 1);
|
|
}
|
|
|
|
void UndoRedo::create_action(const String &p_name, MergeMode p_mode) {
|
|
uint64_t ticks = OS::get_singleton()->get_ticks_msec();
|
|
|
|
if (action_level == 0) {
|
|
_discard_redo();
|
|
|
|
// Check if the merge operation is valid
|
|
if (p_mode != MERGE_DISABLE && actions.size() && actions[actions.size() - 1].name == p_name && actions[actions.size() - 1].last_tick + 800 > ticks) {
|
|
current_action = actions.size() - 2;
|
|
|
|
if (p_mode == MERGE_ENDS) {
|
|
// Clear all do ops from last action, and delete all object references
|
|
List<Operation>::Element *E = actions.write[current_action + 1].do_ops.front();
|
|
|
|
while (E) {
|
|
E->get().delete_reference();
|
|
E = E->next();
|
|
actions.write[current_action + 1].do_ops.pop_front();
|
|
}
|
|
}
|
|
|
|
actions.write[actions.size() - 1].last_tick = ticks;
|
|
|
|
merge_mode = p_mode;
|
|
merging = true;
|
|
} else {
|
|
Action new_action;
|
|
new_action.name = p_name;
|
|
new_action.last_tick = ticks;
|
|
actions.push_back(new_action);
|
|
|
|
merge_mode = MERGE_DISABLE;
|
|
}
|
|
}
|
|
|
|
action_level++;
|
|
}
|
|
|
|
void UndoRedo::add_do_method(Object *p_object, const String &p_method, VARIANT_ARG_DECLARE) {
|
|
VARIANT_ARGPTRS
|
|
ERR_FAIL_COND(p_object == nullptr);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
Operation do_op;
|
|
do_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<Reference>(p_object)) {
|
|
do_op.ref = Ref<Reference>(Object::cast_to<Reference>(p_object));
|
|
}
|
|
|
|
do_op.type = Operation::TYPE_METHOD;
|
|
do_op.name = p_method;
|
|
|
|
for (int i = 0; i < VARIANT_ARG_MAX; i++) {
|
|
do_op.args[i] = *argptr[i];
|
|
}
|
|
actions.write[current_action + 1].do_ops.push_back(do_op);
|
|
}
|
|
|
|
void UndoRedo::add_undo_method(Object *p_object, const String &p_method, VARIANT_ARG_DECLARE) {
|
|
VARIANT_ARGPTRS
|
|
ERR_FAIL_COND(p_object == nullptr);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
// No undo if the merge mode is MERGE_ENDS
|
|
if (merge_mode == MERGE_ENDS) {
|
|
return;
|
|
}
|
|
|
|
Operation undo_op;
|
|
undo_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<Reference>(p_object)) {
|
|
undo_op.ref = Ref<Reference>(Object::cast_to<Reference>(p_object));
|
|
}
|
|
|
|
undo_op.type = Operation::TYPE_METHOD;
|
|
undo_op.name = p_method;
|
|
|
|
for (int i = 0; i < VARIANT_ARG_MAX; i++) {
|
|
undo_op.args[i] = *argptr[i];
|
|
}
|
|
actions.write[current_action + 1].undo_ops.push_back(undo_op);
|
|
}
|
|
void UndoRedo::add_do_property(Object *p_object, const String &p_property, const Variant &p_value) {
|
|
ERR_FAIL_COND(p_object == nullptr);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
Operation do_op;
|
|
do_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<Reference>(p_object)) {
|
|
do_op.ref = Ref<Reference>(Object::cast_to<Reference>(p_object));
|
|
}
|
|
|
|
do_op.type = Operation::TYPE_PROPERTY;
|
|
do_op.name = p_property;
|
|
do_op.args[0] = p_value;
|
|
actions.write[current_action + 1].do_ops.push_back(do_op);
|
|
}
|
|
void UndoRedo::add_undo_property(Object *p_object, const String &p_property, const Variant &p_value) {
|
|
ERR_FAIL_COND(p_object == nullptr);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
// No undo if the merge mode is MERGE_ENDS
|
|
if (merge_mode == MERGE_ENDS) {
|
|
return;
|
|
}
|
|
|
|
Operation undo_op;
|
|
undo_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<Reference>(p_object)) {
|
|
undo_op.ref = Ref<Reference>(Object::cast_to<Reference>(p_object));
|
|
}
|
|
|
|
undo_op.type = Operation::TYPE_PROPERTY;
|
|
undo_op.name = p_property;
|
|
undo_op.args[0] = p_value;
|
|
actions.write[current_action + 1].undo_ops.push_back(undo_op);
|
|
}
|
|
void UndoRedo::add_do_reference(Object *p_object) {
|
|
ERR_FAIL_COND(p_object == nullptr);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
Operation do_op;
|
|
do_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<Reference>(p_object)) {
|
|
do_op.ref = Ref<Reference>(Object::cast_to<Reference>(p_object));
|
|
}
|
|
|
|
do_op.type = Operation::TYPE_REFERENCE;
|
|
actions.write[current_action + 1].do_ops.push_back(do_op);
|
|
}
|
|
void UndoRedo::add_undo_reference(Object *p_object) {
|
|
ERR_FAIL_COND(p_object == nullptr);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
// No undo if the merge mode is MERGE_ENDS
|
|
if (merge_mode == MERGE_ENDS) {
|
|
return;
|
|
}
|
|
|
|
Operation undo_op;
|
|
undo_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<Reference>(p_object)) {
|
|
undo_op.ref = Ref<Reference>(Object::cast_to<Reference>(p_object));
|
|
}
|
|
|
|
undo_op.type = Operation::TYPE_REFERENCE;
|
|
actions.write[current_action + 1].undo_ops.push_back(undo_op);
|
|
}
|
|
|
|
void UndoRedo::_pop_history_tail() {
|
|
_discard_redo();
|
|
|
|
if (!actions.size()) {
|
|
return;
|
|
}
|
|
|
|
for (List<Operation>::Element *E = actions.write[0].undo_ops.front(); E; E = E->next()) {
|
|
E->get().delete_reference();
|
|
}
|
|
|
|
actions.remove(0);
|
|
if (current_action >= 0) {
|
|
current_action--;
|
|
}
|
|
}
|
|
|
|
bool UndoRedo::is_committing_action() const {
|
|
return committing > 0;
|
|
}
|
|
|
|
void UndoRedo::commit_action() {
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
action_level--;
|
|
if (action_level > 0) {
|
|
return; //still nested
|
|
}
|
|
|
|
if (merging) {
|
|
version--;
|
|
merging = false;
|
|
}
|
|
|
|
committing++;
|
|
redo(); // perform action
|
|
committing--;
|
|
if (callback && actions.size() > 0) {
|
|
callback(callback_ud, actions[actions.size() - 1].name);
|
|
}
|
|
}
|
|
|
|
void UndoRedo::_process_operation_list(List<Operation>::Element *E) {
|
|
for (; E; E = E->next()) {
|
|
Operation &op = E->get();
|
|
|
|
Object *obj = ObjectDB::get_instance(op.object);
|
|
if (!obj) { //may have been deleted and this is fine
|
|
continue;
|
|
}
|
|
|
|
switch (op.type) {
|
|
case Operation::TYPE_METHOD: {
|
|
Vector<const Variant *> argptrs;
|
|
argptrs.resize(VARIANT_ARG_MAX);
|
|
int argc = 0;
|
|
|
|
for (int i = 0; i < VARIANT_ARG_MAX; i++) {
|
|
if (op.args[i].get_type() == Variant::NIL) {
|
|
break;
|
|
}
|
|
argptrs.write[i] = &op.args[i];
|
|
argc++;
|
|
}
|
|
argptrs.resize(argc);
|
|
|
|
Variant::CallError ce;
|
|
obj->call(op.name, (const Variant **)argptrs.ptr(), argc, ce);
|
|
if (ce.error != Variant::CallError::CALL_OK) {
|
|
ERR_PRINT("Error calling method from signal '" + String(op.name) + "': " + Variant::get_call_error_text(obj, op.name, (const Variant **)argptrs.ptr(), argc, ce));
|
|
}
|
|
#ifdef TOOLS_ENABLED
|
|
Resource *res = Object::cast_to<Resource>(obj);
|
|
if (res) {
|
|
res->set_edited(true);
|
|
}
|
|
|
|
#endif
|
|
|
|
if (method_callback) {
|
|
method_callback(method_callbck_ud, obj, op.name, VARIANT_ARGS_FROM_ARRAY(op.args));
|
|
}
|
|
} break;
|
|
case Operation::TYPE_PROPERTY: {
|
|
obj->set(op.name, op.args[0]);
|
|
#ifdef TOOLS_ENABLED
|
|
Resource *res = Object::cast_to<Resource>(obj);
|
|
if (res) {
|
|
res->set_edited(true);
|
|
}
|
|
#endif
|
|
if (property_callback) {
|
|
property_callback(prop_callback_ud, obj, op.name, op.args[0]);
|
|
}
|
|
} break;
|
|
case Operation::TYPE_REFERENCE: {
|
|
//do nothing
|
|
} break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool UndoRedo::redo() {
|
|
ERR_FAIL_COND_V(action_level > 0, false);
|
|
|
|
if ((current_action + 1) >= actions.size()) {
|
|
return false; //nothing to redo
|
|
}
|
|
|
|
current_action++;
|
|
|
|
_process_operation_list(actions.write[current_action].do_ops.front());
|
|
version++;
|
|
emit_signal("version_changed");
|
|
|
|
return true;
|
|
}
|
|
|
|
bool UndoRedo::undo() {
|
|
ERR_FAIL_COND_V(action_level > 0, false);
|
|
if (current_action < 0) {
|
|
return false; //nothing to redo
|
|
}
|
|
_process_operation_list(actions.write[current_action].undo_ops.front());
|
|
current_action--;
|
|
version--;
|
|
emit_signal("version_changed");
|
|
|
|
return true;
|
|
}
|
|
|
|
void UndoRedo::clear_history(bool p_increase_version) {
|
|
ERR_FAIL_COND(action_level > 0);
|
|
_discard_redo();
|
|
|
|
while (actions.size()) {
|
|
_pop_history_tail();
|
|
}
|
|
|
|
if (p_increase_version) {
|
|
version++;
|
|
emit_signal("version_changed");
|
|
}
|
|
}
|
|
|
|
String UndoRedo::get_current_action_name() const {
|
|
ERR_FAIL_COND_V(action_level > 0, "");
|
|
if (current_action < 0) {
|
|
return "";
|
|
}
|
|
return actions[current_action].name;
|
|
}
|
|
|
|
bool UndoRedo::has_undo() const {
|
|
return current_action >= 0;
|
|
}
|
|
|
|
bool UndoRedo::has_redo() const {
|
|
return (current_action + 1) < actions.size();
|
|
}
|
|
|
|
uint64_t UndoRedo::get_version() const {
|
|
return version;
|
|
}
|
|
|
|
void UndoRedo::set_commit_notify_callback(CommitNotifyCallback p_callback, void *p_ud) {
|
|
callback = p_callback;
|
|
callback_ud = p_ud;
|
|
}
|
|
|
|
void UndoRedo::set_method_notify_callback(MethodNotifyCallback p_method_callback, void *p_ud) {
|
|
method_callback = p_method_callback;
|
|
method_callbck_ud = p_ud;
|
|
}
|
|
|
|
void UndoRedo::set_property_notify_callback(PropertyNotifyCallback p_property_callback, void *p_ud) {
|
|
property_callback = p_property_callback;
|
|
prop_callback_ud = p_ud;
|
|
}
|
|
|
|
UndoRedo::UndoRedo() {
|
|
committing = 0;
|
|
version = 1;
|
|
action_level = 0;
|
|
current_action = -1;
|
|
merge_mode = MERGE_DISABLE;
|
|
merging = false;
|
|
callback = nullptr;
|
|
callback_ud = nullptr;
|
|
|
|
method_callbck_ud = nullptr;
|
|
prop_callback_ud = nullptr;
|
|
method_callback = nullptr;
|
|
property_callback = nullptr;
|
|
}
|
|
|
|
UndoRedo::~UndoRedo() {
|
|
clear_history();
|
|
}
|
|
|
|
Variant UndoRedo::_add_do_method(const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
|
|
if (p_argcount < 2) {
|
|
r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
|
|
r_error.argument = 0;
|
|
return Variant();
|
|
}
|
|
|
|
if (p_args[0]->get_type() != Variant::OBJECT) {
|
|
r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
|
|
r_error.argument = 0;
|
|
r_error.expected = Variant::OBJECT;
|
|
return Variant();
|
|
}
|
|
|
|
if (p_args[1]->get_type() != Variant::STRING) {
|
|
r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
|
|
r_error.argument = 1;
|
|
r_error.expected = Variant::STRING;
|
|
return Variant();
|
|
}
|
|
|
|
r_error.error = Variant::CallError::CALL_OK;
|
|
|
|
Object *object = *p_args[0];
|
|
String method = *p_args[1];
|
|
|
|
Variant v[VARIANT_ARG_MAX];
|
|
|
|
for (int i = 0; i < MIN(VARIANT_ARG_MAX, p_argcount - 2); ++i) {
|
|
v[i] = *p_args[i + 2];
|
|
}
|
|
|
|
static_assert(VARIANT_ARG_MAX == 8, "This code needs to be updated if VARIANT_ARG_MAX != 8");
|
|
add_do_method(object, method, v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7]);
|
|
return Variant();
|
|
}
|
|
|
|
Variant UndoRedo::_add_undo_method(const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
|
|
if (p_argcount < 2) {
|
|
r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
|
|
r_error.argument = 0;
|
|
return Variant();
|
|
}
|
|
|
|
if (p_args[0]->get_type() != Variant::OBJECT) {
|
|
r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
|
|
r_error.argument = 0;
|
|
r_error.expected = Variant::OBJECT;
|
|
return Variant();
|
|
}
|
|
|
|
if (p_args[1]->get_type() != Variant::STRING) {
|
|
r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
|
|
r_error.argument = 1;
|
|
r_error.expected = Variant::STRING;
|
|
return Variant();
|
|
}
|
|
|
|
r_error.error = Variant::CallError::CALL_OK;
|
|
|
|
Object *object = *p_args[0];
|
|
String method = *p_args[1];
|
|
|
|
Variant v[VARIANT_ARG_MAX];
|
|
|
|
for (int i = 0; i < MIN(VARIANT_ARG_MAX, p_argcount - 2); ++i) {
|
|
v[i] = *p_args[i + 2];
|
|
}
|
|
|
|
static_assert(VARIANT_ARG_MAX == 8, "This code needs to be updated if VARIANT_ARG_MAX != 8");
|
|
add_undo_method(object, method, v[0], v[1], v[2], v[3], v[4], v[5], v[6], v[7]);
|
|
return Variant();
|
|
}
|
|
|
|
void UndoRedo::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("create_action", "name", "merge_mode"), &UndoRedo::create_action, DEFVAL(MERGE_DISABLE));
|
|
ClassDB::bind_method(D_METHOD("commit_action"), &UndoRedo::commit_action);
|
|
// FIXME: Typo in "commiting", fix in 4.0 when breaking compat.
|
|
ClassDB::bind_method(D_METHOD("is_commiting_action"), &UndoRedo::is_committing_action);
|
|
|
|
{
|
|
MethodInfo mi;
|
|
mi.name = "add_do_method";
|
|
mi.arguments.push_back(PropertyInfo(Variant::OBJECT, "object"));
|
|
mi.arguments.push_back(PropertyInfo(Variant::STRING, "method"));
|
|
|
|
ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "add_do_method", &UndoRedo::_add_do_method, mi, varray(), false);
|
|
}
|
|
|
|
{
|
|
MethodInfo mi;
|
|
mi.name = "add_undo_method";
|
|
mi.arguments.push_back(PropertyInfo(Variant::OBJECT, "object"));
|
|
mi.arguments.push_back(PropertyInfo(Variant::STRING, "method"));
|
|
|
|
ClassDB::bind_vararg_method(METHOD_FLAGS_DEFAULT, "add_undo_method", &UndoRedo::_add_undo_method, mi, varray(), false);
|
|
}
|
|
|
|
ClassDB::bind_method(D_METHOD("add_do_property", "object", "property", "value"), &UndoRedo::add_do_property);
|
|
ClassDB::bind_method(D_METHOD("add_undo_property", "object", "property", "value"), &UndoRedo::add_undo_property);
|
|
ClassDB::bind_method(D_METHOD("add_do_reference", "object"), &UndoRedo::add_do_reference);
|
|
ClassDB::bind_method(D_METHOD("add_undo_reference", "object"), &UndoRedo::add_undo_reference);
|
|
ClassDB::bind_method(D_METHOD("clear_history", "increase_version"), &UndoRedo::clear_history, DEFVAL(true));
|
|
ClassDB::bind_method(D_METHOD("get_current_action_name"), &UndoRedo::get_current_action_name);
|
|
ClassDB::bind_method(D_METHOD("has_undo"), &UndoRedo::has_undo);
|
|
ClassDB::bind_method(D_METHOD("has_redo"), &UndoRedo::has_redo);
|
|
ClassDB::bind_method(D_METHOD("get_version"), &UndoRedo::get_version);
|
|
ClassDB::bind_method(D_METHOD("redo"), &UndoRedo::redo);
|
|
ClassDB::bind_method(D_METHOD("undo"), &UndoRedo::undo);
|
|
|
|
ADD_SIGNAL(MethodInfo("version_changed"));
|
|
|
|
BIND_ENUM_CONSTANT(MERGE_DISABLE);
|
|
BIND_ENUM_CONSTANT(MERGE_ENDS);
|
|
BIND_ENUM_CONSTANT(MERGE_ALL);
|
|
}
|