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#ifndef QSGCONTEXT_H
#define QSGCONTEXT_H

#include <QObject>
#include <qabstractanimation.h>

#include "qsgnode.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

class QSGContextPrivate;
class QSGRectangleNode;
class QSGImageNode;
class QSGGlyphNode;
class QSGRenderer;

class QSGTexture;
class QSGMaterial;
class QSGMaterialShader;
class QSGEngine;

class QGLContext;

class Q_DECLARATIVE_EXPORT QSGContext : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QSGContext)

public:
    explicit QSGContext(QObject *parent = 0);
    ~QSGContext();

    virtual void initialize(QGLContext *context);

    QSGRenderer *renderer() const;

    void setRootNode(QSGRootNode *node);
    QSGRootNode *rootNode() const;

    QSGEngine *engine() const;
    QGLContext *glContext() const;

    bool isReady() const;

    QSGMaterialShader *prepareMaterial(QSGMaterial *material);

    virtual void renderNextFrame();

    virtual QSGRectangleNode *createRectangleNode();
    virtual QSGImageNode *createImageNode();
    virtual QSGGlyphNode *createGlyphNode();
    virtual QSGRenderer *createRenderer();

    virtual bool canDecodeImageToTexture() const;
    virtual QSGTexture *decodeImageToTexture(QIODevice *dev,
                                                     QSize *size,
                                                     const QSize &requestSize);
    virtual QSGTexture *createTexture(const QImage &image = QImage()) const;

    static QSGContext *createDefaultContext();

    void schdelueTextureForCleanup(QSGTexture *texture);
    void cleanupTextures();

    void setFlashModeEnabled(bool enabled);
    bool isFlashModeEnabled() const;

    void setRenderAlpha(qreal renderAlpha);
    qreal renderAlpha() const;

signals:
    void ready();
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QSGCONTEXT_H