/*  This file is part of the KDE project.+
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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+
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This library is free software: you can redistribute it and/or modify+
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it under the terms of the GNU Lesser General Public License as published by+
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the Free Software Foundation, either version 2.1 or 3 of the License.+
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+
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This library is distributed in the hope that it will be useful,+
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but WITHOUT ANY WARRANTY; without even the implied warranty of+
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+
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GNU Lesser General Public License 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 library.  If not, see <http://www.gnu.org/licenses/>.+
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*/+
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+
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#include "abstractvideorenderer.h"+
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+
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#include <QtGui/QApplication>+
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#include <QtGui/QDesktopWidget>+
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+
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QT_BEGIN_NAMESPACE+
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+
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#ifndef QT_NO_PHONON_VIDEO+
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+
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namespace Phonon+
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{+
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    namespace DS9+
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    {+
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+
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        AbstractVideoRenderer::AbstractVideoRenderer() : +
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            m_dstX(0), m_dstY(0), m_dstWidth(0), m_dstHeight(0),+
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                m_active(false)+
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        {+
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        }+
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+
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        AbstractVideoRenderer::~AbstractVideoRenderer()+
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        {+
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        }+
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+
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        Filter AbstractVideoRenderer::getFilter() const+
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        {+
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            return m_filter;+
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        }+
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+
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        QSize AbstractVideoRenderer::sizeHint() const+
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        {+
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            QSize s = videoSize();+
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            if (s.isNull()) {+
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                s = QSize(640, 480).boundedTo( QApplication::desktop()->availableGeometry().size() );+
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            }+
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            return s;+
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        }+
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+
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        void AbstractVideoRenderer::setActive(bool b)+
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        {+
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            m_active = b;+
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        }+
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+
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        bool AbstractVideoRenderer::isActive() const+
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        {+
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            return m_active;+
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        }+
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+
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        void AbstractVideoRenderer::internalNotifyResize(const QSize &size, const QSize &videoSize,+
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            Phonon::VideoWidget::AspectRatio aspectRatio, Phonon::VideoWidget::ScaleMode scaleMode)+
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        {+
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            //update the video rects+
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            qreal ratio = -1.;+
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            const int videoWidth = videoSize.width(),+
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                videoHeight = videoSize.height();+
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+
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            switch(aspectRatio)+
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            {+
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            case Phonon::VideoWidget::AspectRatioAuto:+
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                {+
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                    //preserve the aspect ratio of the video+
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                    ratio = qreal(videoWidth) / qreal(videoHeight);+
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                }+
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                break;+
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            case Phonon::VideoWidget::AspectRatio4_3:+
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                ratio = qreal(4. / 3.);+
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                break;+
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            case Phonon::VideoWidget::AspectRatio16_9:+
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                ratio = qreal(16. / 9.);+
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                break;+
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            case Phonon::VideoWidget::AspectRatioWidget:+
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            default:+
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                break;+
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            }+
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+
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            const qreal realWidth = size.width(), +
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                realHeight = size.height();+
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+
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            //reinitialization+
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            m_dstWidth = size.width();+
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            m_dstHeight = size.height();+
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            m_dstX = m_dstY = 0;+
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+
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            if (ratio > 0) {+
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                if ((realWidth / realHeight > ratio && scaleMode == Phonon::VideoWidget::FitInView)+
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                    || (realWidth / realHeight < ratio && scaleMode == Phonon::VideoWidget::ScaleAndCrop)) {+
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                        //the height is correct, let's change the width+
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                        m_dstWidth = qRound(realHeight * ratio);+
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                        m_dstX = qRound((realWidth - realHeight * ratio) / 2.);+
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                } else {+
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                    m_dstHeight = qRound(realWidth / ratio);+
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                    m_dstY = qRound((realHeight - realWidth / ratio) / 2.);+
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                }+
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            }+
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        }+
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    }+
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}+
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+
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#endif //QT_NO_PHONON_EFFECT+
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+
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QT_END_NAMESPACE+
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