patch.diff

######################################################################
# Automatically generated by qmake (2.01a) man. aug. 16 11:59:15 2010
######################################################################

TEMPLATE = app
TARGET = 
DEPENDPATH += .
INCLUDEPATH += .

CONFIG += opengl

CONFIG *= mobility
MOBILITY += multimedia

# Input
SOURCES += main.cpp

-----------------------------  >8  -----------------------------------


#include <QtGui>
#include <QMediaPlayer>
#include <QVideoWidget>
#include <QGraphicsVideoItem>
#include <QGLWidget>

class VideoItem : public QGraphicsVideoItem
{
public:
    VideoItem(QMediaPlayer* player) : QGraphicsVideoItem(), m_player(player) {}
protected:
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) {
        QGraphicsVideoItem::paint(painter, option, widget);
        if (m_player) {
            m_player->setVideoOutput(this);
            m_player = 0;
        }
    }

    QMediaPlayer* m_player;
};


class GraphicsView : public QGraphicsView
{
    Q_OBJECT
public:
    GraphicsView() : QGraphicsView(), m_player(new QMediaPlayer), m_videoItem(0) {

        QGraphicsScene* scene = new QGraphicsScene(this);
        setScene(scene);

        setViewport(new QGLWidget);
        setGeometry(QApplication::desktop()->screenGeometry());

        setSource();
        setNormalItem();

        m_player->play();
    }
    ~GraphicsView() { delete m_player; }

public slots:
    void setSource() {
        m_player->setMedia(QUrl("http://chaos.troll.no/~tavestbo/webkit/mediaelement/micmacs.sd.m4v"));
    }

    void setNormalItem() {
        delete m_videoItem;
        m_videoItem = new QGraphicsVideoItem;
        scene()->clear();
        scene()->addItem(m_videoItem);
        m_videoItem->setPos(QPointF(0, 0));
        m_videoItem->setSize(QApplication::desktop()->screenGeometry().size());

        // The following line will cause a call to QPainterVideoSurface::createPainter(),
        // but since the item has not recived a paint-event yet, no GL context has been
        // set on the surface. Result: QVideoSurfaceCoreGraphicsPainter(glSupported=false)
        m_player->setVideoOutput(m_videoItem);
    }

    void setCustomItem() {
        delete m_videoItem;
        m_videoItem = new VideoItem(m_player);
        scene()->clear();
        scene()->addItem(m_videoItem);
        m_videoItem->setPos(QPointF(0, 0));
        m_videoItem->setSize(QApplication::desktop()->screenGeometry().size());

        // This will defer the setVideoOutput() call until after the first paint
    }

public:
    QMediaPlayer* m_player;
    QGraphicsVideoItem* m_videoItem;
};


int main(int argc, char** argv)
{
    QApplication app(argc, argv);

    GraphicsView video;
    video.show();

    QWidget *window = new QWidget;
    QHBoxLayout *layout = new QHBoxLayout;
    window->setLayout(layout);

    QPushButton* button;

/*
    button = new QPushButton("play");
    QObject::connect(button, SIGNAL(clicked()), video.m_player, SLOT(play()));
    layout->addWidget(button);

    button = new QPushButton("pause");
    QObject::connect(button, SIGNAL(clicked()), video.m_player, SLOT(pause()));
    layout->addWidget(button);

    button = new QPushButton("reload source");
    QObject::connect(button, SIGNAL(clicked()), &video, SLOT(setSource()));
    layout->addWidget(button);
*/

    button = new QPushButton("reload item (normal)");
    QObject::connect(button, SIGNAL(clicked()), &video, SLOT(setNormalItem()));
    layout->addWidget(button);

    button = new QPushButton("reload item (custom)");
    QObject::connect(button, SIGNAL(clicked()), &video, SLOT(setCustomItem()));
    layout->addWidget(button);


    window->show();

    return app.exec();

}

#include "main.moc"