src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h
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     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 plugins 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 QDIRECTFBPAINTDEVICE_H
       
    43 #define QDIRECTFBPAINTDEVICE_H
       
    44 
       
    45 #include <private/qpaintengine_raster_p.h>
       
    46 #include "qdirectfbscreen.h"
       
    47 
       
    48 #ifndef QT_NO_QWS_DIRECTFB
       
    49 
       
    50 QT_BEGIN_HEADER
       
    51 
       
    52 QT_BEGIN_NAMESPACE
       
    53 
       
    54 QT_MODULE(Gui)
       
    55 
       
    56 // Inherited by both window surface and pixmap
       
    57 class QDirectFBPaintEngine;
       
    58 class QDirectFBPaintDevice : public QCustomRasterPaintDevice
       
    59 {
       
    60 public:
       
    61     ~QDirectFBPaintDevice();
       
    62 
       
    63     virtual IDirectFBSurface *directFBSurface() const;
       
    64 
       
    65     bool lockSurface(DFBSurfaceLockFlags lockFlags);
       
    66     void unlockSurface();
       
    67 
       
    68     // Reimplemented from QCustomRasterPaintDevice:
       
    69     void *memory() const;
       
    70     QImage::Format format() const;
       
    71     int bytesPerLine() const;
       
    72     QSize size() const;
       
    73     int metric(QPaintDevice::PaintDeviceMetric metric) const;
       
    74     DFBSurfaceLockFlags lockFlags() const { return lockFlgs; }
       
    75     QPaintEngine *paintEngine() const;
       
    76 protected:
       
    77     QDirectFBPaintDevice(QDirectFBScreen *scr);
       
    78     inline int dotsPerMeterX() const
       
    79     {
       
    80         return (screen->deviceWidth() * 1000) / screen->physicalWidth();
       
    81     }
       
    82     inline int dotsPerMeterY() const
       
    83     {
       
    84         return (screen->deviceHeight() * 1000) / screen->physicalHeight();
       
    85     }
       
    86 
       
    87     IDirectFBSurface *dfbSurface;
       
    88 #ifdef QT_DIRECTFB_SUBSURFACE
       
    89     void releaseSubSurface();
       
    90     IDirectFBSurface *subSurface;
       
    91     friend class QDirectFBPaintEnginePrivate;
       
    92     bool syncPending;
       
    93 #endif
       
    94     QImage lockedImage;
       
    95     QDirectFBScreen *screen;
       
    96     int bpl;
       
    97     DFBSurfaceLockFlags lockFlgs;
       
    98     uchar *mem;
       
    99     QDirectFBPaintEngine *engine;
       
   100     QImage::Format imageFormat;
       
   101 };
       
   102 
       
   103 QT_END_NAMESPACE
       
   104 
       
   105 QT_END_HEADER
       
   106 
       
   107 #endif // QT_NO_QWS_DIRECTFB
       
   108 #endif //QDIRECTFBPAINTDEVICE_H