mirror of
https://github.com/godotengine/godot
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175 lines
6 KiB
C++
175 lines
6 KiB
C++
/**************************************************************************/
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/* property_list_helper.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 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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#include "property_list_helper.h"
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const PropertyListHelper::Property *PropertyListHelper::_get_property(const String &p_property, int *r_index) const {
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const Vector<String> components = p_property.rsplit("/", true, 1);
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if (components.size() < 2 || !components[0].begins_with(prefix)) {
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return nullptr;
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}
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{
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const String index_string = components[0].trim_prefix(prefix);
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if (!index_string.is_valid_int()) {
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return nullptr;
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}
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*r_index = index_string.to_int();
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}
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return property_list.getptr(components[1]);
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}
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void PropertyListHelper::_call_setter(const MethodBind *p_setter, int p_index, const Variant &p_value) const {
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DEV_ASSERT(p_setter);
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Variant args[] = { p_index, p_value };
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const Variant *argptrs[] = { &args[0], &args[1] };
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Callable::CallError ce;
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p_setter->call(object, argptrs, 2, ce);
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}
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Variant PropertyListHelper::_call_getter(const Property *p_property, int p_index) const {
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if (!p_property->getter) {
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return object->get(prefix + itos(p_index) + "/" + p_property->info.name);
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}
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Callable::CallError ce;
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Variant args[] = { p_index };
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const Variant *argptrs[] = { &args[0] };
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return p_property->getter->call(object, argptrs, 1, ce);
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}
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void PropertyListHelper::set_prefix(const String &p_prefix) {
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prefix = p_prefix;
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}
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void PropertyListHelper::register_property(const PropertyInfo &p_info, const Variant &p_default) {
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Property property;
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property.info = p_info;
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property.default_value = p_default;
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property_list[p_info.name] = property;
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}
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bool PropertyListHelper::is_initialized() const {
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return !property_list.is_empty();
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}
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void PropertyListHelper::setup_for_instance(const PropertyListHelper &p_base, Object *p_object) {
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prefix = p_base.prefix;
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property_list = p_base.property_list;
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object = p_object;
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}
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bool PropertyListHelper::is_property_valid(const String &p_property, int *r_index) const {
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const Vector<String> components = p_property.rsplit("/", true, 1);
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if (components.size() < 2 || !components[0].begins_with(prefix)) {
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return false;
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}
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{
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const String index_string = components[0].trim_prefix(prefix);
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if (!index_string.is_valid_int()) {
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return false;
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}
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if (r_index) {
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*r_index = index_string.to_int();
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}
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}
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return property_list.has(components[1]);
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}
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void PropertyListHelper::get_property_list(List<PropertyInfo> *p_list, int p_count) const {
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for (int i = 0; i < p_count; i++) {
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for (const KeyValue<String, Property> &E : property_list) {
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const Property &property = E.value;
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PropertyInfo info = property.info;
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if (_call_getter(&property, i) == property.default_value) {
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info.usage &= (~PROPERTY_USAGE_STORAGE);
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}
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info.name = vformat("%s%d/%s", prefix, i, info.name);
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p_list->push_back(info);
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}
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}
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}
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bool PropertyListHelper::property_get_value(const String &p_property, Variant &r_ret) const {
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int index;
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const Property *property = _get_property(p_property, &index);
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if (property) {
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r_ret = _call_getter(property, index);
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return true;
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}
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return false;
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}
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bool PropertyListHelper::property_set_value(const String &p_property, const Variant &p_value) const {
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int index;
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const Property *property = _get_property(p_property, &index);
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if (property) {
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_call_setter(property->setter, index, p_value);
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return true;
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}
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return false;
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}
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bool PropertyListHelper::property_can_revert(const String &p_property) const {
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return is_property_valid(p_property);
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}
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bool PropertyListHelper::property_get_revert(const String &p_property, Variant &r_value) const {
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int index;
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const Property *property = _get_property(p_property, &index);
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if (property) {
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r_value = property->default_value;
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return true;
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}
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return false;
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}
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PropertyListHelper::~PropertyListHelper() {
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// No object = it's the main helper. Do a cleanup.
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if (!object) {
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for (const KeyValue<String, Property> &E : property_list) {
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if (E.value.setter) {
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memdelete(E.value.setter);
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memdelete(E.value.getter);
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}
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}
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}
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}
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