/****************************************************************************
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** Copyright (C) 2013 Sandro S. Andrade <sandroandrade@kde.org>
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtUml module of the Qt Toolkit.
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/
#include "qumlextensionpoint.h"

#include "private/qumlextensionpointobject_p.h"

#include <QtUml/QUmlClassifier>
#include <QtUml/QUmlComment>
#include <QtUml/QUmlDependency>
#include <QtUml/QUmlElement>
#include <QtUml/QUmlNamedElement>
#include <QtUml/QUmlNamespace>
#include <QtUml/QUmlPackage>
#include <QtUml/QUmlStringExpression>
#include <QtUml/QUmlUseCase>

QT_BEGIN_NAMESPACE

/*!
    \class QUmlExtensionPoint

    \inmodule QtUml

    \brief An extension point identifies a point in the behavior of a use case where that behavior can be extended by the behavior of some other (extending) use case, as specified by an extend relationship.
 */

/*!
    Creates a new QUmlExtensionPoint. Also creates the corresponding QObject-based representation returned by asQModelingObject() if \a createQModelingObject is true.
*/
QUmlExtensionPoint::QUmlExtensionPoint(bool createQModelingObject) :
    _useCase(0)
{
    if (createQModelingObject)
        _qModelingObject = qobject_cast<QModelingObject *>(new QUmlExtensionPointObject(this));
}

/*!
    Destroys the QUmlExtensionPoint.
 */
QUmlExtensionPoint::~QUmlExtensionPoint()
{
    QModelingElement::deleteQModelingObject();
}

/*!
    Returns a deep-copied clone of the QUmlExtensionPoint.
*/
QModelingElement *QUmlExtensionPoint::clone() const
{
    QUmlExtensionPoint *c = new QUmlExtensionPoint;
    c->asQModelingObject()->setObjectName(this->asQModelingObject()->objectName());
    c->asQModelingObject()->setProperty("role", this->asQModelingObject()->property("role"));
    foreach (QUmlComment *element, ownedComments())
        c->addOwnedComment(dynamic_cast<QUmlComment *>(element->clone()));
    c->setName(name());
    if (nameExpression())
        c->setNameExpression(dynamic_cast<QUmlStringExpression *>(nameExpression()->clone()));
    c->setVisibility(visibility());
    c->setLeaf(isLeaf());
    return c;
}

// OWNED ATTRIBUTES

/*!
    References the use case that owns this extension point.

    \b {Subsetted property(ies):} QUmlNamedElement::namespace_().

    \b {Opposite property(ies):} QUmlUseCase::extensionPoints().
 */
QUmlUseCase *QUmlExtensionPoint::useCase() const
{
    // This is a read-write association end

    return _useCase;
}

/*!
    Adjusts useCase to \a useCase.
 */
void QUmlExtensionPoint::setUseCase(QUmlUseCase *useCase)
{
    // This is a read-write association end

    if (_useCase != useCase) {
        // Adjust subsetted properties

        _useCase = useCase;
        if (useCase && useCase->asQModelingObject() && this->asQModelingObject())
            QObject::connect(useCase->asQModelingObject(), SIGNAL(destroyed()), this->asQModelingObject(), SLOT(setUseCase()));

        // Adjust subsetted properties
        setNamespace(useCase);
    }
}

QT_END_NAMESPACE