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#include "videowidget.h"

#include <QtCore/QEvent>

#include <QtGui/QResizeEvent>

#include <QtGui/QPalette>

#include <QtGui/QImage>

#include <QtGui/QPainter>

#include <QtGui/QBoxLayout>

#include <QApplication>

#include "mediaobject.h"

QT_BEGIN_NAMESPACE

namespace Phonon

{

namespace Dummy

{

VideoWidget::VideoWidget(Backend *backend, QWidget *parent) :

    QWidget(parent),

    m_aspectRatio(Phonon::VideoWidget::AspectRatioAuto),

    m_brightness(0.0),

    m_hue(0.0),

    m_contrast(0.0),

    m_saturation(0.0),

    m_scaleMode(Phonon::VideoWidget::FitInView)

{

    Q_UNUSED(backend)

}

VideoWidget::~VideoWidget()

{

}

void VideoWidget::paintEvent(QPaintEvent *event)

{

    Q_UNUSED(event)

}

void VideoWidget::setVisible(bool val)

{

    Q_UNUSED(val)

}

Phonon::VideoWidget::AspectRatio VideoWidget::aspectRatio() const

{

    return m_aspectRatio;

}

QSize VideoWidget::sizeHint() const

{

    return QSize(640, 480);

}

void VideoWidget::setAspectRatio(Phonon::VideoWidget::AspectRatio aspectRatio)

{

    Q_UNUSED(aspectRatio)

}

Phonon::VideoWidget::ScaleMode VideoWidget::scaleMode() const

{

    return m_scaleMode;

}

QRect VideoWidget::scaleToAspect(QRect srcRect, int w, int h) const

{

    float width = srcRect.width();

    float height = srcRect.width() * (float(h) / float(w));

    if (height > srcRect.height()) {

        height = srcRect.height();

        width = srcRect.height() * (float(w) / float(h));

    }

    return QRect(0, 0, (int)width, (int)height);

}

/***

 * Calculates the actual rectangle the movie will be presented with

 **/

QRect VideoWidget::calculateDrawFrameRect() const

{

    QRect widgetRect = rect();

    QRect drawFrameRect;

    // Set m_drawFrameRect to be the size of the smallest possible

    // rect conforming to the aspect and containing the whole frame:

    switch (aspectRatio()) {

    case Phonon::VideoWidget::AspectRatioWidget:

        drawFrameRect = widgetRect;

        // No more calculations needed.

        return drawFrameRect;

    case Phonon::VideoWidget::AspectRatio4_3:

        drawFrameRect = scaleToAspect(widgetRect, 4, 3);

        break;

    case Phonon::VideoWidget::AspectRatio16_9:

        drawFrameRect = scaleToAspect(widgetRect, 16, 9);

        break;

    case Phonon::VideoWidget::AspectRatioAuto:

    default:

        drawFrameRect = QRect(0, 0, movieSize().width(), movieSize().height());

        break;

    }

    // Scale m_drawFrameRect to fill the widget

    // without breaking aspect:

    float widgetWidth = widgetRect.width();

    float widgetHeight = widgetRect.height();

    float frameWidth = widgetWidth;

    float frameHeight = drawFrameRect.height() * float(widgetWidth) / float(drawFrameRect.width());

    switch (scaleMode()) {

    case Phonon::VideoWidget::ScaleAndCrop:

        if (frameHeight < widgetHeight) {

            frameWidth *= float(widgetHeight) / float(frameHeight);

            frameHeight = widgetHeight;

        }

        break;

    case Phonon::VideoWidget::FitInView:

    default:

        if (frameHeight > widgetHeight) {

            frameWidth *= float(widgetHeight) / float(frameHeight);

            frameHeight = widgetHeight;

        }

        break;

    }

    drawFrameRect.setSize(QSize(int(frameWidth), int(frameHeight)));

    drawFrameRect.moveTo(int((widgetWidth - frameWidth) / 2.0f),

                           int((widgetHeight - frameHeight) / 2.0f));

    return drawFrameRect;

}

void VideoWidget::setScaleMode(Phonon::VideoWidget::ScaleMode scaleMode)

{

    Q_UNUSED(scaleMode)

}

qreal VideoWidget::brightness() const

{

    return m_brightness;

}

qreal clampedValue(qreal val)

{

    if (val > 1.0 )

        return 1.0;

    else if (val < -1.0)

        return -1.0;

    else return val;

}

void VideoWidget::setBrightness(qreal newValue)

{

    Q_UNUSED(newValue)

}

qreal VideoWidget::contrast() const

{

    return m_contrast;

}

void VideoWidget::setContrast(qreal newValue)

{

    Q_UNUSED(newValue)

}

qreal VideoWidget::hue() const

{

    return m_hue;

}

void VideoWidget::setHue(qreal newValue)

{

    Q_UNUSED(newValue)

}

qreal VideoWidget::saturation() const

{

    return m_saturation;

}

void VideoWidget::setSaturation(qreal newValue)

{

    Q_UNUSED(newValue)

}

bool VideoWidget::event(QEvent *event)

{

    return QWidget::event(event);

}

void VideoWidget::setMovieSize(const QSize &size)

{

    m_movieSize = size;

    widget()->updateGeometry();

    widget()->update();

}

}

} //namespace Phonon::Dummy

QT_END_NAMESPACE

#include "moc_videowidget.cpp"