videographicsobject.h

/*
    Copyright (C) 2011 Harald Sitter <sitter@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) version 3, or any
    later version accepted by the membership of KDE e.V. (or its
    successor approved by the membership of KDE e.V.), Nokia Corporation
    (or its successors, if any) and the KDE Free Qt Foundation, which shall
    act as a proxy defined in Section 6 of version 3 of the license.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef PHONON_VIDEOGRAPHICSOBJECT_H
#define PHONON_VIDEOGRAPHICSOBJECT_H

#include <QGraphicsObject>
#include <QMap>

#include "medianode.h"

// FIXME: I really do not want a videoframe include :(
#include "videoframe.h"

// FIXME: review symbol exposure of QGV stuff

namespace Phonon {

class VideoFrame;
class VideoGraphicsFormatSpy;
class VideoGraphicsObjectPrivate;

enum GraphicsPainterType {
    GraphicsPainterNone,
    GraphicsPainterGlsl,
    GraphicsPainterGlArb,
    GraphicsPainterQPainter
};

class PHONON_EXPORT VideoGraphicsPainterMetaFactory
{
public:
    static QMap<GraphicsPainterType, QList<VideoFrame::Format> > detectTypes();
};

class PHONON_EXPORT VideoGraphicsObject : public QGraphicsObject, public MediaNode
{
    P_DECLARE_PRIVATE(VideoGraphicsObject)
    Q_OBJECT
public:
    explicit VideoGraphicsObject(QGraphicsItem *parent = 0);

    virtual ~VideoGraphicsObject();

    virtual QRectF boundingRect() const;

    void setGeometry(const QRectF &newGeometry);

    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);


    bool isReady() const;

    // FIXME: q_invoke?
    bool canNegotiate() const;

public slots:
    // FIXME: q_invoke?
    void setSpyFormats(QMap<GraphicsPainterType, QList<VideoFrame::Format> > formats);

signals:
    void ready();

    // FIXME: ew?!
    void gotPaint();

    // TODO: make Q_PRIVATE
private slots:
    void frameReady();
    void reset();

private:
    Q_PRIVATE_SLOT(k_func(), void _p_negotiateFormat())
};

} // namespace Phonon

#endif // PHONON_VIDEOGRAPHICSOBJECT_H