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/*
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* Copyright (C) 2015 Christian Ehringfeld <c.ehringfeld@t-online.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "entityinstancefactory.h"
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#include "entity.h"
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#include "entityhelper.h"
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#include <QMetaType>
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#include <QDebug>
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using namespace CuteEntityManager;
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QHash<QByteArray, EntityInstanceFactory::Constructor>
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EntityInstanceFactory::instance =
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QHash<QByteArray, EntityInstanceFactory::Constructor>();
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EntityInstanceFactory::EntityInstanceFactory() {
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}
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Entity *EntityInstanceFactory::createInstance(const char *className) {
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QString s = QString(className);
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if (!s.contains("*")) {
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s.append("*");
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}
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auto ptr = EntityInstanceFactory::createInstance(QMetaType::type(
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s.toUtf8().constData()));
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if (!ptr) {
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s.remove("*");
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ptr = EntityInstanceFactory::createObject(s.toUtf8());
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}
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return ptr;
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}
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Entity *EntityInstanceFactory::createInstance(const QString &className) {
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return EntityInstanceFactory::createInstance(className.toUtf8().constData());
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}
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Entity *EntityInstanceFactory::createInstance(int metaTypeId) {
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Entity *e = nullptr;
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if (metaTypeId != QMetaType::UnknownType) {
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auto metaObject = QMetaType::metaObjectForType(metaTypeId);
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if (metaObject) {
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e = qobject_cast<Entity *>(EntityInstanceFactory::createObject(metaObject->className()));
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if(!e) {
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e = qobject_cast<Entity *>(metaObject->newInstance());
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qDebug() << "Backup method for dynamic object creation was called. Maybe the class " +
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QString(metaObject->className()) + " isn't registered?";
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}
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} else {
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void *newObj = QMetaType::create(metaTypeId);
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if (newObj) {
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e = static_cast<Entity *>(newObj);
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}
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}
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}
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return e;
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}
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Entity *EntityInstanceFactory::createInstance(const char *className,
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const QHash<QString, QVariant> &attributes) {
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Entity *e = EntityInstanceFactory::createInstance(className);
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EntityInstanceFactory::setAttributes(e, attributes);
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return e;
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}
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void EntityInstanceFactory::setAttributes(Entity *&e,
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const QHash<QString, QVariant> &attributes,
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QHash<QString, QMetaProperty> metaprops) {
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if (e) {
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auto iterator = attributes.constBegin();
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while (iterator != attributes.constEnd()) {
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if (metaprops.contains(iterator.key())) {
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QMetaProperty prop = metaprops.value(iterator.key());
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if (prop.isWritable()) {
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if (prop.isEnumType()) {
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prop.write(e, prop.enumerator().valueToKey(iterator.value().toInt()));
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} else {
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prop.write(e, iterator.value());
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}
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} else {
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qWarning() << prop.name() << "on Entity" << EntityHelper::getClassname(
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e) << "not writeable!";
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}
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} else {
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e->setProperty(iterator.key().toLatin1().data(), iterator.value());
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}
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++iterator;
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}
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}
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}
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void EntityInstanceFactory::setAttributes(Entity *&e,
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const QHash<QString, QVariant> &attributes) {
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if (!attributes.isEmpty()) {
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auto metaprops = EntityHelper::getMetaProperties(e);
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EntityInstanceFactory::setAttributes(e, attributes, metaprops);
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}
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}
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const QString EntityInstanceFactory::extractEntityType(const QString &s) {
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QString r = "";
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const QString sptr = "QSharedPointer";
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if (s.contains(sptr)) {
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const int index = s.indexOf(sptr) + sptr.count() + 1;
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r = s.mid(index, s.indexOf(">", index) - index);
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} else {
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r = s;
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}
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return r;
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}
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Entity *EntityInstanceFactory::newSuperClassInstance(const Entity *e) {
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Entity *super = nullptr;
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if (e) {
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auto metaObject = e->metaObject()->superClass();
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if (QString(metaObject->className()) != QString("CuteEntityManager::Entity")) {
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super = EntityInstanceFactory::createInstance(metaObject->className());
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}
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}
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return super;
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}
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Entity *EntityInstanceFactory::createInstance(const QMetaObject *object) {
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auto o = object->newInstance();
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if(o) {
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return qobject_cast<Entity *>(o);
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}
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return EntityInstanceFactory::createInstance(object->className());
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}
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const QList<QSharedPointer<Entity>> EntityInstanceFactory::castQVariantList(
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QVariant &list) {
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if(!list.isNull() && list.isValid()) {
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return *reinterpret_cast<QList<QSharedPointer<Entity>>*>(list.data());
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}
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return QList<QSharedPointer<Entity>>();
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}
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const QSharedPointer<Entity> EntityInstanceFactory::castQVariant(
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QVariant &entity) {
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if(!entity.isNull() && entity.isValid()) {
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return *static_cast<const QSharedPointer<Entity>*>(entity.constData());
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}
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return QSharedPointer<Entity>(nullptr);
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}
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QStringList EntityInstanceFactory::getRegisteredClasses() {
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QStringList registered = QStringList();
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for (auto i = EntityInstanceFactory::instance.constBegin();
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i != EntityInstanceFactory::instance.constEnd(); ++i) {
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registered.append(i.key());
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}
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return registered;
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}
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Entity *EntityInstanceFactory::createInstance(Attribute *&attr) {
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return EntityInstanceFactory::createInstance(
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EntityInstanceFactory::extractEntityType(
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attr->getMetaProperty().typeName()));
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}
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