mirror of
https://github.com/godotengine/godot
synced 2024-09-05 21:19:44 +00:00
563 lines
17 KiB
C++
563 lines
17 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/io/resource.h"
|
|
#include "core/os/os.h"
|
|
#include "core/templates/local_vector.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 (Operation &E : actions.write[i].do_ops) {
|
|
E.delete_reference();
|
|
}
|
|
//ERASE do data
|
|
}
|
|
|
|
actions.resize(current_action + 1);
|
|
}
|
|
|
|
bool UndoRedo::_redo(bool p_execute) {
|
|
ERR_FAIL_COND_V(action_level > 0, false);
|
|
|
|
if ((current_action + 1) >= actions.size()) {
|
|
return false; //nothing to redo
|
|
}
|
|
|
|
current_action++;
|
|
|
|
List<Operation>::Element *start_doops_element = actions.write[current_action].do_ops.front();
|
|
while (merge_total > 0 && start_doops_element) {
|
|
start_doops_element = start_doops_element->next();
|
|
merge_total--;
|
|
}
|
|
|
|
_process_operation_list(start_doops_element, p_execute);
|
|
version++;
|
|
emit_signal(SNAME("version_changed"));
|
|
|
|
return true;
|
|
}
|
|
|
|
void UndoRedo::create_action(const String &p_name, MergeMode p_mode, bool p_backward_undo_ops) {
|
|
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].backward_undo_ops == p_backward_undo_ops && 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 if they are not forced kept
|
|
LocalVector<List<Operation>::Element *> to_remove;
|
|
for (List<Operation>::Element *E = actions.write[current_action + 1].do_ops.front(); E; E = E->next()) {
|
|
if (!E->get().force_keep_in_merge_ends) {
|
|
to_remove.push_back(E);
|
|
}
|
|
}
|
|
|
|
for (List<Operation>::Element *E : to_remove) {
|
|
// Delete all object references
|
|
E->get().delete_reference();
|
|
E->erase();
|
|
}
|
|
}
|
|
|
|
if (p_mode == MERGE_ALL) {
|
|
merge_total = actions.write[current_action + 1].do_ops.size();
|
|
} else {
|
|
merge_total = 0;
|
|
}
|
|
|
|
actions.write[actions.size() - 1].last_tick = ticks;
|
|
|
|
// Revert reverse from previous commit.
|
|
if (actions[actions.size() - 1].backward_undo_ops) {
|
|
actions.write[actions.size() - 1].undo_ops.reverse();
|
|
}
|
|
|
|
merge_mode = p_mode;
|
|
merging = true;
|
|
} else {
|
|
Action new_action;
|
|
new_action.name = p_name;
|
|
new_action.last_tick = ticks;
|
|
new_action.backward_undo_ops = p_backward_undo_ops;
|
|
actions.push_back(new_action);
|
|
|
|
merge_mode = MERGE_DISABLE;
|
|
merge_total = 0;
|
|
}
|
|
}
|
|
|
|
action_level++;
|
|
|
|
force_keep_in_merge_ends = false;
|
|
}
|
|
|
|
void UndoRedo::add_do_method(const Callable &p_callable) {
|
|
ERR_FAIL_COND(!p_callable.is_valid());
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
ObjectID object_id = p_callable.get_object_id();
|
|
Object *object = ObjectDB::get_instance(object_id);
|
|
ERR_FAIL_COND(object_id.is_valid() && object == nullptr);
|
|
|
|
Operation do_op;
|
|
do_op.callable = p_callable;
|
|
do_op.object = object_id;
|
|
if (Object::cast_to<RefCounted>(object)) {
|
|
do_op.ref = Ref<RefCounted>(Object::cast_to<RefCounted>(object));
|
|
}
|
|
do_op.type = Operation::TYPE_METHOD;
|
|
do_op.name = p_callable.get_method();
|
|
if (do_op.name == StringName()) {
|
|
// There's no `get_method()` for custom callables, so use `operator String()` instead.
|
|
do_op.name = static_cast<String>(p_callable);
|
|
}
|
|
|
|
actions.write[current_action + 1].do_ops.push_back(do_op);
|
|
}
|
|
|
|
void UndoRedo::add_undo_method(const Callable &p_callable) {
|
|
ERR_FAIL_COND(!p_callable.is_valid());
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
// No undo if the merge mode is MERGE_ENDS
|
|
if (!force_keep_in_merge_ends && merge_mode == MERGE_ENDS) {
|
|
return;
|
|
}
|
|
|
|
ObjectID object_id = p_callable.get_object_id();
|
|
Object *object = ObjectDB::get_instance(object_id);
|
|
ERR_FAIL_COND(object_id.is_valid() && object == nullptr);
|
|
|
|
Operation undo_op;
|
|
undo_op.callable = p_callable;
|
|
undo_op.object = object_id;
|
|
if (Object::cast_to<RefCounted>(object)) {
|
|
undo_op.ref = Ref<RefCounted>(Object::cast_to<RefCounted>(object));
|
|
}
|
|
undo_op.type = Operation::TYPE_METHOD;
|
|
undo_op.force_keep_in_merge_ends = force_keep_in_merge_ends;
|
|
undo_op.name = p_callable.get_method();
|
|
if (undo_op.name == StringName()) {
|
|
// There's no `get_method()` for custom callables, so use `operator String()` instead.
|
|
undo_op.name = static_cast<String>(p_callable);
|
|
}
|
|
|
|
actions.write[current_action + 1].undo_ops.push_back(undo_op);
|
|
}
|
|
|
|
void UndoRedo::add_do_property(Object *p_object, const StringName &p_property, const Variant &p_value) {
|
|
ERR_FAIL_NULL(p_object);
|
|
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<RefCounted>(p_object)) {
|
|
do_op.ref = Ref<RefCounted>(Object::cast_to<RefCounted>(p_object));
|
|
}
|
|
|
|
do_op.type = Operation::TYPE_PROPERTY;
|
|
do_op.name = p_property;
|
|
do_op.value = p_value;
|
|
actions.write[current_action + 1].do_ops.push_back(do_op);
|
|
}
|
|
|
|
void UndoRedo::add_undo_property(Object *p_object, const StringName &p_property, const Variant &p_value) {
|
|
ERR_FAIL_NULL(p_object);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
// No undo if the merge mode is MERGE_ENDS
|
|
if (!force_keep_in_merge_ends && merge_mode == MERGE_ENDS) {
|
|
return;
|
|
}
|
|
|
|
Operation undo_op;
|
|
undo_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<RefCounted>(p_object)) {
|
|
undo_op.ref = Ref<RefCounted>(Object::cast_to<RefCounted>(p_object));
|
|
}
|
|
|
|
undo_op.type = Operation::TYPE_PROPERTY;
|
|
undo_op.force_keep_in_merge_ends = force_keep_in_merge_ends;
|
|
undo_op.name = p_property;
|
|
undo_op.value = p_value;
|
|
actions.write[current_action + 1].undo_ops.push_back(undo_op);
|
|
}
|
|
|
|
void UndoRedo::add_do_reference(Object *p_object) {
|
|
ERR_FAIL_NULL(p_object);
|
|
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<RefCounted>(p_object)) {
|
|
do_op.ref = Ref<RefCounted>(Object::cast_to<RefCounted>(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_NULL(p_object);
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
// No undo if the merge mode is MERGE_ENDS
|
|
if (!force_keep_in_merge_ends && merge_mode == MERGE_ENDS) {
|
|
return;
|
|
}
|
|
|
|
Operation undo_op;
|
|
undo_op.object = p_object->get_instance_id();
|
|
if (Object::cast_to<RefCounted>(p_object)) {
|
|
undo_op.ref = Ref<RefCounted>(Object::cast_to<RefCounted>(p_object));
|
|
}
|
|
|
|
undo_op.type = Operation::TYPE_REFERENCE;
|
|
undo_op.force_keep_in_merge_ends = force_keep_in_merge_ends;
|
|
actions.write[current_action + 1].undo_ops.push_back(undo_op);
|
|
}
|
|
|
|
void UndoRedo::start_force_keep_in_merge_ends() {
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
force_keep_in_merge_ends = true;
|
|
}
|
|
|
|
void UndoRedo::end_force_keep_in_merge_ends() {
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
ERR_FAIL_COND((current_action + 1) >= actions.size());
|
|
|
|
force_keep_in_merge_ends = false;
|
|
}
|
|
|
|
void UndoRedo::_pop_history_tail() {
|
|
_discard_redo();
|
|
|
|
if (!actions.size()) {
|
|
return;
|
|
}
|
|
|
|
for (Operation &E : actions.write[0].undo_ops) {
|
|
E.delete_reference();
|
|
}
|
|
|
|
actions.remove_at(0);
|
|
if (current_action >= 0) {
|
|
current_action--;
|
|
}
|
|
}
|
|
|
|
bool UndoRedo::is_committing_action() const {
|
|
return committing > 0;
|
|
}
|
|
|
|
void UndoRedo::commit_action(bool p_execute) {
|
|
ERR_FAIL_COND(action_level <= 0);
|
|
action_level--;
|
|
if (action_level > 0) {
|
|
return; //still nested
|
|
}
|
|
|
|
bool add_message = !merging;
|
|
|
|
if (merging) {
|
|
version--;
|
|
merging = false;
|
|
}
|
|
|
|
if (actions[actions.size() - 1].backward_undo_ops) {
|
|
actions.write[actions.size() - 1].undo_ops.reverse();
|
|
}
|
|
|
|
committing++;
|
|
_redo(p_execute); // perform action
|
|
committing--;
|
|
|
|
if (max_steps > 0) {
|
|
// Clear early steps.
|
|
|
|
while (actions.size() > max_steps) {
|
|
_pop_history_tail();
|
|
}
|
|
}
|
|
|
|
if (add_message && callback && actions.size() > 0) {
|
|
callback(callback_ud, actions[actions.size() - 1].name);
|
|
}
|
|
}
|
|
|
|
void UndoRedo::_process_operation_list(List<Operation>::Element *E, bool p_execute) {
|
|
const int PREALLOCATE_ARGS_COUNT = 16;
|
|
|
|
LocalVector<const Variant *> args;
|
|
args.reserve(PREALLOCATE_ARGS_COUNT);
|
|
|
|
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: {
|
|
if (p_execute) {
|
|
Callable::CallError ce;
|
|
Variant ret;
|
|
op.callable.callp(nullptr, 0, ret, ce);
|
|
if (ce.error != Callable::CallError::CALL_OK) {
|
|
ERR_PRINT("Error calling UndoRedo method operation '" + String(op.name) + "': " + Variant::get_call_error_text(obj, op.name, nullptr, 0, ce));
|
|
}
|
|
#ifdef TOOLS_ENABLED
|
|
Resource *res = Object::cast_to<Resource>(obj);
|
|
if (res) {
|
|
res->set_edited(true);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (method_callback) {
|
|
Vector<Variant> binds;
|
|
if (op.callable.is_custom()) {
|
|
CallableCustomBind *ccb = dynamic_cast<CallableCustomBind *>(op.callable.get_custom());
|
|
if (ccb) {
|
|
binds = ccb->get_binds();
|
|
}
|
|
}
|
|
|
|
if (binds.is_empty()) {
|
|
method_callback(method_callback_ud, obj, op.name, nullptr, 0);
|
|
} else {
|
|
args.clear();
|
|
|
|
for (int i = 0; i < binds.size(); i++) {
|
|
args.push_back(&binds[i]);
|
|
}
|
|
|
|
method_callback(method_callback_ud, obj, op.name, args.ptr(), binds.size());
|
|
}
|
|
}
|
|
} break;
|
|
case Operation::TYPE_PROPERTY: {
|
|
if (p_execute) {
|
|
obj->set(op.name, op.value);
|
|
#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.value);
|
|
}
|
|
} break;
|
|
case Operation::TYPE_REFERENCE: {
|
|
//do nothing
|
|
} break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool UndoRedo::redo() {
|
|
return _redo(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(), true);
|
|
current_action--;
|
|
version--;
|
|
emit_signal(SNAME("version_changed"));
|
|
|
|
return true;
|
|
}
|
|
|
|
int UndoRedo::get_history_count() {
|
|
ERR_FAIL_COND_V(action_level > 0, -1);
|
|
|
|
return actions.size();
|
|
}
|
|
|
|
int UndoRedo::get_current_action() {
|
|
ERR_FAIL_COND_V(action_level > 0, -1);
|
|
|
|
return current_action;
|
|
}
|
|
|
|
String UndoRedo::get_action_name(int p_id) {
|
|
ERR_FAIL_INDEX_V(p_id, actions.size(), "");
|
|
|
|
return actions[p_id].name;
|
|
}
|
|
|
|
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(SNAME("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;
|
|
}
|
|
|
|
int UndoRedo::get_action_level() const {
|
|
return action_level;
|
|
}
|
|
|
|
bool UndoRedo::has_undo() const {
|
|
return current_action >= 0;
|
|
}
|
|
|
|
bool UndoRedo::has_redo() const {
|
|
return (current_action + 1) < actions.size();
|
|
}
|
|
|
|
bool UndoRedo::is_merging() const {
|
|
return merging;
|
|
}
|
|
|
|
uint64_t UndoRedo::get_version() const {
|
|
return version;
|
|
}
|
|
|
|
void UndoRedo::set_max_steps(int p_max_steps) {
|
|
max_steps = p_max_steps;
|
|
}
|
|
|
|
int UndoRedo::get_max_steps() const {
|
|
return max_steps;
|
|
}
|
|
|
|
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_callback_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() {
|
|
clear_history();
|
|
}
|
|
|
|
void UndoRedo::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("create_action", "name", "merge_mode", "backward_undo_ops"), &UndoRedo::create_action, DEFVAL(MERGE_DISABLE), DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("commit_action", "execute"), &UndoRedo::commit_action, DEFVAL(true));
|
|
ClassDB::bind_method(D_METHOD("is_committing_action"), &UndoRedo::is_committing_action);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_do_method", "callable"), &UndoRedo::add_do_method);
|
|
ClassDB::bind_method(D_METHOD("add_undo_method", "callable"), &UndoRedo::add_undo_method);
|
|
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("start_force_keep_in_merge_ends"), &UndoRedo::start_force_keep_in_merge_ends);
|
|
ClassDB::bind_method(D_METHOD("end_force_keep_in_merge_ends"), &UndoRedo::end_force_keep_in_merge_ends);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_history_count"), &UndoRedo::get_history_count);
|
|
ClassDB::bind_method(D_METHOD("get_current_action"), &UndoRedo::get_current_action);
|
|
ClassDB::bind_method(D_METHOD("get_action_name", "id"), &UndoRedo::get_action_name);
|
|
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("set_max_steps", "max_steps"), &UndoRedo::set_max_steps);
|
|
ClassDB::bind_method(D_METHOD("get_max_steps"), &UndoRedo::get_max_steps);
|
|
ClassDB::bind_method(D_METHOD("redo"), &UndoRedo::redo);
|
|
ClassDB::bind_method(D_METHOD("undo"), &UndoRedo::undo);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "max_steps", PROPERTY_HINT_RANGE, "0,50,1,or_greater"), "set_max_steps", "get_max_steps");
|
|
|
|
ADD_SIGNAL(MethodInfo("version_changed"));
|
|
|
|
BIND_ENUM_CONSTANT(MERGE_DISABLE);
|
|
BIND_ENUM_CONSTANT(MERGE_ENDS);
|
|
BIND_ENUM_CONSTANT(MERGE_ALL);
|
|
}
|