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#include "slideshow.h"

#include <qmediaservice.h>

#include <qmediaplaylist.h>

#include <qvideowidget.h>

#include <QtGui>

SlideShow::SlideShow(QWidget *parent)

    : QWidget(parent)

    , imageViewer(0)

    , playlist(0)

    , playButton(0)

    , stopButton(0)

{

    imageViewer = new QMediaImageViewer(this);

    connect(imageViewer, SIGNAL(stateChanged(QMediaImageViewer::State)),

            this, SLOT(stateChanged(QMediaImageViewer::State)));

    playlist = new QMediaPlaylist;

    playlist->setMediaObject(imageViewer);

    QVideoWidget *videoWidget = new QVideoWidget;

    videoWidget->setMediaObject(imageViewer);

    QMenu *openMenu = new QMenu(this);

    openMenu->addAction(tr("Directory..."), this, SLOT(openDirectory()));

    openMenu->addAction(tr("Playlist..."), this, SLOT(openPlaylist()));

    QToolButton *openButton = new QToolButton;

    openButton->setIcon(style()->standardIcon(QStyle::SP_DialogOpenButton));

    openButton->setMenu(openMenu);

    openButton->setPopupMode(QToolButton::InstantPopup);

    playButton = new QToolButton;

    playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));

    connect(playButton, SIGNAL(clicked()), this, SLOT(play()));

    stopButton = new QToolButton;

    stopButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop));

    stopButton->setEnabled(false);

    connect(stopButton, SIGNAL(clicked()), imageViewer, SLOT(stop()));

    QAbstractButton *nextButton = new QToolButton;

    nextButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipForward));

    connect(nextButton, SIGNAL(clicked()), playlist, SLOT(next()));

    QAbstractButton *previousButton = new QToolButton;

    previousButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipBackward));

    connect(previousButton, SIGNAL(clicked()), playlist, SLOT(previous()));

    QBoxLayout *controlLayout = new QHBoxLayout;

    controlLayout->setMargin(0);

    controlLayout->addWidget(openButton);

    controlLayout->addStretch(1);

    controlLayout->addWidget(previousButton);

    controlLayout->addWidget(stopButton);

    controlLayout->addWidget(playButton);

    controlLayout->addWidget(nextButton);

    controlLayout->addStretch(1);

    QBoxLayout *layout = new QVBoxLayout;

    layout->addLayout(controlLayout);

    setLayout(layout);

}

void SlideShow::openPlaylist()

{

    QString path = QFileDialog::getOpenFileName(this);

    if (!path.isEmpty()) {

    }

}

void SlideShow::openDirectory()

{

    QString path = QFileDialog::getExistingDirectory(this);

    if (!path.isEmpty()) {

        playlist->clear();

        QDir dir(path);

    }

}

void SlideShow::play()

{

    switch (imageViewer->state()) {

    case QMediaImageViewer::StoppedState:

    case QMediaImageViewer::PausedState:

        imageViewer->play();

        break;

    case QMediaImageViewer::PlayingState:

        imageViewer->pause();

        break;

    }

}

void SlideShow::stateChanged(QMediaImageViewer::State state)

{

    switch (state) {

    case QMediaImageViewer::StoppedState:

        stopButton->setEnabled(false);

        playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));

        break;

    case QMediaImageViewer::PlayingState:

        stopButton->setEnabled(true);

        playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause));

        break;

    case QMediaImageViewer::PausedState:

        stopButton->setEnabled(true);

        playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));

        break;

    }

}