/****************************************************************************
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** Copyright (C) 2013 Sandro S. Andrade <sandroandrade@kde.org>
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** This file is part of the QtUml module of the Qt Toolkit.
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** Foundation and appearing in the file LICENSE.GPL included in the
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****************************************************************************/
#include "qumltimeexpression.h"

#include "private/qumltimeexpressionobject_p.h"

#include <QtUml/QUmlComment>
#include <QtUml/QUmlDependency>
#include <QtUml/QUmlElement>
#include <QtUml/QUmlNamedElement>
#include <QtUml/QUmlNamespace>
#include <QtUml/QUmlObservation>
#include <QtUml/QUmlPackage>
#include <QtUml/QUmlParameterableElement>
#include <QtUml/QUmlStringExpression>
#include <QtUml/QUmlTemplateParameter>
#include <QtUml/QUmlType>

QT_BEGIN_NAMESPACE

/*!
    \class QUmlTimeExpression

    \inmodule QtUml

    \brief A time expression defines a value specification that represents a time value.
 */

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

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

/*!
    Returns a deep-copied clone of the QUmlTimeExpression.
*/
QModelingElement *QUmlTimeExpression::clone() const
{
    QUmlTimeExpression *c = new QUmlTimeExpression;
    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());
    if (expr())
        c->setExpr(dynamic_cast<QUmlValueSpecification *>(expr()->clone()));
    return c;
}

// OWNED ATTRIBUTES

/*!
    The value of the time expression.

    \b {Subsetted property(ies):} QUmlElement::ownedElements().
 */
QUmlValueSpecification *QUmlTimeExpression::expr() const
{
    // This is a read-write association end

    return _expr;
}

/*!
    Adjusts expr to \a expr.
 */
void QUmlTimeExpression::setExpr(QUmlValueSpecification *expr)
{
    // This is a read-write association end

    if (_expr != expr) {
        // Adjust subsetted properties
        removeOwnedElement(_expr);

        _expr = expr;
        if (expr && expr->asQModelingObject() && this->asQModelingObject())
            QObject::connect(expr->asQModelingObject(), SIGNAL(destroyed()), this->asQModelingObject(), SLOT(setExpr()));
        expr->asQModelingObject()->setParent(this->asQModelingObject());

        // Adjust subsetted properties
        if (expr) {
            addOwnedElement(expr);
        }
    }
}

/*!
    Refers to the time and duration observations that are involved in expr.

    \sa addObservation(), removeObservation()
 */
const QSet<QUmlObservation *> QUmlTimeExpression::observations() const
{
    // This is a read-write association end

    return _observations;
}

/*!
    Adds \a observation to observations.

    \sa observations(), removeObservation()
 */
void QUmlTimeExpression::addObservation(QUmlObservation *observation)
{
    // This is a read-write association end

    if (!_observations.contains(observation)) {
        _observations.insert(observation);
        if (observation && observation->asQModelingObject() && this->asQModelingObject())
            QObject::connect(observation->asQModelingObject(), SIGNAL(destroyed(QObject*)), this->asQModelingObject(), SLOT(removeObservation(QObject *)));
    }
}

/*!
    Removes \a observation from observations.

    \sa observations(), addObservation()
 */
void QUmlTimeExpression::removeObservation(QUmlObservation *observation)
{
    // This is a read-write association end

    if (_observations.contains(observation)) {
        _observations.remove(observation);
    }
}

QT_END_NAMESPACE