/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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****************************************************************************/

#ifndef QQUICKCANVASCONTEXT_P_H
#define QQUICKCANVASCONTEXT_P_H

#include <QtQuick/qquickitem.h>
#include <private/qv8engine_p.h>


QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class QQuickCanvasItem;
class QSGDynamicTexture;

class QQuickCanvasContextPrivate;
class QQuickCanvasContext : public QObject
{
    Q_OBJECT

public:
    QQuickCanvasContext(QObject *parent = 0);
    ~QQuickCanvasContext();

    virtual QStringList contextNames() const = 0;

    // Init (ignore options if necessary)
    virtual void init(QQuickCanvasItem *canvasItem, const QVariantMap &args) = 0;

    virtual void prepare(const QSize& canvasSize, const QSize& tileSize, const QRect& canvasWindow, const QRect& dirtyRect, bool smooth);

    // Indicate this is a good time to begin composition
    virtual void flush();

    // Cause render (if necessary) to surface via execution unit
    virtual void sync();

    virtual void setV8Engine(QV8Engine *engine) = 0;
    virtual v8::Handle<v8::Object> v8value() const = 0;

    virtual QSGDynamicTexture *texture() const = 0;

    virtual QImage toImage(const QRectF& bounds) = 0;

Q_SIGNALS:
    void textureChanged();
};

QT_END_NAMESPACE

QT_END_HEADER

#endif //QQUICKCANVASCONTEXT_P_H