/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** information use the contact form at http://www.qt.io/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later 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 2.0 requirements will be
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** $QT_END_LICENSE$
**
****************************************************************************/

#include "qblendstate.h"
#include "qrenderstate_p.h"
#include <Qt3DCore/qscenepropertychange.h>
#include <private/qnode_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3D {

class QBlendStatePrivate : public QRenderStatePrivate
{
public:
    QBlendStatePrivate(QBlendState *qq)
        : QRenderStatePrivate(qq, QRenderState::BlendState)
        , m_srcRGB(QBlendState::Zero)
        , m_srcAlpha(QBlendState::Zero)
        , m_dstRGB(QBlendState::Zero)
        , m_dstAlpha(QBlendState::Zero)
    {
    }

    Q_DECLARE_PUBLIC(QBlendState)

    QBlendState::Blending m_srcRGB;
    QBlendState::Blending m_srcAlpha;
    QBlendState::Blending m_dstRGB;
    QBlendState::Blending m_dstAlpha;
};

QBlendState::QBlendState(QNode *parent)
    : QRenderState(*new QBlendStatePrivate(this), parent)
{
}

void QBlendState::copy(const QNode *ref)
{
    QRenderState::copy(ref);
    const QBlendState *refState = static_cast<const QBlendState*>(ref);
    d_func()->m_srcRGB = refState->d_func()->m_srcRGB;
    d_func()->m_srcAlpha = refState->d_func()->m_srcAlpha;
    d_func()->m_dstAlpha = refState->d_func()->m_dstAlpha;
    d_func()->m_dstRGB = refState->d_func()->m_dstRGB;
}

QBlendState::Blending QBlendState::srcRGB() const
{
    Q_D(const QBlendState);
    return d->m_srcRGB;
}

void QBlendState::setSrcRGB(QBlendState::Blending srcRGB)
{
    Q_D(QBlendState);
    if (d->m_srcRGB != srcRGB) {
        d->m_srcRGB = srcRGB;
        emit srcRGBChanged();
    }
}

QBlendState::Blending QBlendState::dstRGB() const
{
    Q_D(const QBlendState);
    return d->m_dstRGB;
}

void QBlendState::setDstRGB(QBlendState::Blending dstRGB)
{
    Q_D(QBlendState);
    if (d->m_dstRGB != dstRGB) {
        d->m_dstRGB = dstRGB;
        emit dstRGBChanged();
    }
}

QBlendState::Blending QBlendState::srcAlpha() const
{
    Q_D(const QBlendState);
    return d->m_srcAlpha;
}

void QBlendState::setSrcAlpha(QBlendState::Blending srcAlpha)
{
    Q_D(QBlendState);
    if (d->m_srcAlpha != srcAlpha) {
        d->m_srcAlpha = srcAlpha;
        emit srcAlphaChanged();
    }
}

QBlendState::Blending QBlendState::dstAlpha() const
{
    Q_D(const QBlendState);
    return d->m_dstAlpha;
}

void QBlendState::setDstAlpha(QBlendState::Blending dstAlpha)
{
    Q_D(QBlendState);
    if (d->m_dstAlpha != dstAlpha) {
        d->m_dstAlpha = dstAlpha;
        emit dstAlphaChanged();
    }
}

} // Qt3D

QT_END_NAMESPACE