/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtQml module of the Qt Toolkit.
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** file. Please review the following information to ensure the GNU Lesser
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
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** file. Please review the following information to ensure the GNU General
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** $QT_END_LICENSE$
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****************************************************************************/

#ifndef QQMLIMAGEPROVIDER_H
#define QQMLIMAGEPROVIDER_H

#include <QtQml/qtqmlglobal.h>
#include <QtGui/qimage.h>
#include <QtGui/qpixmap.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


class QQmlImageProviderPrivate;
class QSGTexture;
class QQuickCanvas;

class Q_QML_EXPORT QQuickTextureFactory : public QObject
{
public:
    QQuickTextureFactory();
    ~QQuickTextureFactory();

    virtual QSGTexture *createTexture(QQuickCanvas *canvas) const = 0;
    virtual QSize textureSize() const = 0;
    virtual int textureByteCount() const = 0;
};

class Q_QML_EXPORT QQmlImageProvider
{
public:
    enum ImageType {
        Image,
        Pixmap,
        Texture,
        Invalid
    };

    QQmlImageProvider(ImageType type);
    virtual ~QQmlImageProvider();

    ImageType imageType() const;

    virtual QImage requestImage(const QString &id, QSize *size, const QSize& requestedSize);
    virtual QPixmap requestPixmap(const QString &id, QSize *size, const QSize& requestedSize);
    virtual QQuickTextureFactory *requestTexture(const QString &id, QSize *size, const QSize &requestedSize);

private:
    QQmlImageProviderPrivate *d;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QQMLIMAGEPROVIDER