/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtOpenVG module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QPIXMAPDATA_VG_P_H+
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#define QPIXMAPDATA_VG_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists for the convenience+
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// of other Qt classes.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include <QtGui/private/qpixmap_raster_p.h>+
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#include <private/qvg_p.h>+
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+
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#if defined(Q_OS_SYMBIAN)+
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class RSGImage;+
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#endif+
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+
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QT_BEGIN_NAMESPACE+
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+
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class QEglContext;+
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class QVGImagePool;+
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+
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#if !defined(QT_NO_EGL)+
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class QVGPixmapData;+
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class QVGSharedContext;+
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+
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void qt_vg_register_pixmap(QVGPixmapData *pd);+
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void qt_vg_unregister_pixmap(QVGPixmapData *pd);+
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void qt_vg_hibernate_pixmaps(QVGSharedContext *context);+
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#endif+
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+
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class Q_OPENVG_EXPORT QVGPixmapData : public QPixmapData+
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{+
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public:+
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    QVGPixmapData(PixelType type);+
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    ~QVGPixmapData();+
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+
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    QPixmapData *createCompatiblePixmapData() const;+
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+
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    // Is this pixmap valid (i.e. non-zero in size)?+
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    bool isValid() const;+
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+
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    void resize(int width, int height);+
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    void fromImage(const QImage &image, Qt::ImageConversionFlags flags);+
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+
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    void fill(const QColor &color);+
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    bool hasAlphaChannel() const;+
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    void setAlphaChannel(const QPixmap &alphaChannel);+
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    QImage toImage() const;+
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    QImage *buffer();+
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    QPaintEngine* paintEngine() const;+
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+
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    // Return the VGImage form of this pixmap, creating it if necessary.+
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    // This assumes that there is a VG context current.+
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    virtual VGImage toVGImage();+
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+
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    // Return the VGImage form for a specific opacity setting.+
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    virtual VGImage toVGImage(qreal opacity);+
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+
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    // Detach this image from the image pool.+
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    virtual void detachImageFromPool();+
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+
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    // Release the VG resources associated with this pixmap and copy+
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    // the pixmap's contents out of the GPU back into main memory.+
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    // The VG resource will be automatically recreated the next time+
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    // toVGImage() is called.  Does nothing if the pixmap cannot be+
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    // hibernated for some reason (e.g. VGImage is shared with another+
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    // process via a SgImage).+
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    virtual void hibernate();+
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+
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    // Called when the QVGImagePool wants to reclaim this pixmap's+
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    // VGImage objects to reuse storage.+
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    virtual void reclaimImages();+
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+
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    QSize size() const { return QSize(w, h); }+
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+
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#if defined(Q_OS_SYMBIAN)+
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    void* toNativeType(NativeType type);+
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    void fromNativeType(void* pixmap, NativeType type);+
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#endif+
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+
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protected:+
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    int metric(QPaintDevice::PaintDeviceMetric metric) const;+
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+
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#if defined(Q_OS_SYMBIAN)+
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    void cleanup();+
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#endif+
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+
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private:+
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    QVGPixmapData *nextLRU;+
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    QVGPixmapData *prevLRU;+
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    bool inLRU;+
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    friend class QVGImagePool;+
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+
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#if !defined(QT_NO_EGL)+
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    QVGPixmapData *next;+
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    QVGPixmapData *prev;+
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+
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    friend void qt_vg_register_pixmap(QVGPixmapData *pd);+
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    friend void qt_vg_unregister_pixmap(QVGPixmapData *pd);+
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    friend void qt_vg_hibernate_pixmaps(QVGSharedContext *context);+
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#endif+
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+
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protected:+
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    QSize prevSize;+
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    VGImage vgImage;+
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    VGImage vgImageOpacity;+
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    qreal cachedOpacity;+
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    mutable QImage source;+
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    mutable bool recreate;+
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    bool inImagePool;+
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#if !defined(QT_NO_EGL)+
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    mutable QEglContext *context;+
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#endif+
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+
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    void forceToImage();+
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    QImage::Format sourceFormat() const;+
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+
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    void destroyImageAndContext();+
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    void destroyImages();+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif+
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