/****************************************************************************

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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the QtDeclarative module of the Qt Toolkit.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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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

** packaging of this file.  Please review the following information to

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****************************************************************************/

#include "private/qdeclarativetranslate_p.h"

#include <private/qgraphicstransform_p.h>

#include <QDebug>

#include <QtCore/qmath.h>

QT_BEGIN_NAMESPACE

class QDeclarativeTranslatePrivate : public QGraphicsTransformPrivate

{

public:

    QDeclarativeTranslatePrivate()

        : x(0), y(0) {}

    qreal x;

    qreal y;

};

/*!

    Constructs an empty QDeclarativeTranslate object with the given \a parent.

*/

QDeclarativeTranslate::QDeclarativeTranslate(QObject *parent)

    : QGraphicsTransform(*new QDeclarativeTranslatePrivate, parent)

{

}

/*!

    Destroys the graphics scale.

*/

QDeclarativeTranslate::~QDeclarativeTranslate()

{

}

/*!

    \property QDeclarativeTranslate::x

    \brief the horizontal translation.

    The translation can be any real number; the default value is 0.0.

    \sa y

*/

qreal QDeclarativeTranslate::x() const

{

    Q_D(const QDeclarativeTranslate);

    return d->x;

}

void QDeclarativeTranslate::setX(qreal x)

{

    Q_D(QDeclarativeTranslate);

    if (d->x == x)

        return;

    d->x = x;

    update();

    emit positionChanged();

}

/*!

    \property QDeclarativeTranslate::y

    \brief the vertical translation.

    The translation can be any real number; the default value is 0.0.

    \sa x

*/

qreal QDeclarativeTranslate::y() const

{

    Q_D(const QDeclarativeTranslate);

    return d->y;

}

void QDeclarativeTranslate::setY(qreal y)

{

    Q_D(QDeclarativeTranslate);

    if (d->y == y)

        return;

    d->y = y;

    update();

    emit positionChanged();

}

/*!

    \reimp

*/

void QDeclarativeTranslate::applyTo(QMatrix4x4 *matrix) const

{

    Q_D(const QDeclarativeTranslate);

    matrix->translate(d->x, d->y, 0);

}

/*!

    \fn QDeclarativeTranslate::positionChanged()

    QDeclarativeTranslate emits this signal when its position changes.

    \sa QDeclarativeTranslate::x, QDeclarativeTranslate::y

*/

QT_END_NAMESPACE