1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtOpenVG module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QPIXMAPDATA_VG_P_H

    43 #define QPIXMAPDATA_VG_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists for the convenience

    50 // of other Qt classes.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include <QtGui/private/qpixmap_raster_p.h>

    57 #include <private/qvg_p.h>

    58 #if !defined(QT_NO_EGL)

    59 #endif

    60 

    61 #if defined(Q_OS_SYMBIAN)

    62 class RSGImage;

    63 #endif

    64 

    65 QT_BEGIN_NAMESPACE

    66 

    67 class QEglContext;

    68 

    69 class Q_OPENVG_EXPORT QVGPixmapData : public QPixmapData

    70 {

    71 public:

    72     QVGPixmapData(PixelType type);

    73     ~QVGPixmapData();

    74 

    75     QPixmapData *createCompatiblePixmapData() const;

    76 

    77     // Is this pixmap valid (i.e. non-zero in size)?

    78     bool isValid() const;

    79 

    80     void resize(int width, int height);

    81     void fromImage(const QImage &image, Qt::ImageConversionFlags flags);

    82 

    83     void fill(const QColor &color);

    84     bool hasAlphaChannel() const;

    85     void setAlphaChannel(const QPixmap &alphaChannel);

    86     QImage toImage() const;

    87     QImage *buffer();

    88     QPaintEngine* paintEngine() const;

    89 

    90     // Return the VGImage form of this pixmap, creating it if necessary.

    91     // This assumes that there is a VG context current.

    92     VGImage toVGImage();

    93 

    94     // Return the VGImage form for a specific opacity setting.

    95     VGImage toVGImage(qreal opacity);

    96 

    97     QSize size() const { return QSize(w, h); }

    98 

    99 #if defined(Q_OS_SYMBIAN)

   100     void* toNativeType(NativeType type);

   101     void fromNativeType(void* pixmap, NativeType type);

   102 #endif

   103 

   104 protected:

   105     int metric(QPaintDevice::PaintDeviceMetric metric) const;

   106 

   107 #if defined(Q_OS_SYMBIAN)

   108     void cleanup();

   109 #endif

   110 

   111 private:

   112     VGImage vgImage;

   113     VGImage vgImageOpacity;

   114     qreal cachedOpacity;

   115     mutable QImage source;

   116     mutable bool recreate;

   117 #if !defined(QT_NO_EGL)

   118     mutable QEglContext *context;

   119 #endif

   120 

   121     void forceToImage();

   122     QImage::Format sourceFormat() const;

   123 };

   124 

   125 QT_END_NAMESPACE

   126 

   127 #endif