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 QtGui 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 QDIRECTPAINTER_QWS_H

    43 #define QDIRECTPAINTER_QWS_H

    44 

    45 #include <QtCore/qobject.h>

    46 #include <QtGui/qregion.h>

    47 

    48 QT_BEGIN_HEADER

    49 

    50 QT_BEGIN_NAMESPACE

    51 

    52 QT_MODULE(Gui)

    53 

    54 #ifndef QT_NO_DIRECTPAINTER

    55 class QDirectPainterPrivate;

    56 class QWSEmbedEvent;

    57 

    58 class Q_GUI_EXPORT QDirectPainter : public QObject {

    59     Q_OBJECT

    60     Q_DECLARE_PRIVATE(QDirectPainter)

    61 public:

    62 

    63     enum SurfaceFlag { NonReserved = 0,

    64                        Reserved = 1,

    65                        ReservedSynchronous = 3 };

    66 

    67     explicit QDirectPainter(QObject *parentObject = 0, SurfaceFlag flag = NonReserved);

    68     ~QDirectPainter();

    69 

    70     void setRegion(const QRegion&);

    71     QRegion requestedRegion() const;

    72     QRegion allocatedRegion() const;

    73 

    74     void setGeometry(const QRect&);

    75     QRect geometry() const;

    76 

    77     WId winId() const;

    78     virtual void regionChanged(const QRegion &exposedRegion);

    79 

    80     void startPainting(bool lockDisplay = true);

    81     void endPainting();

    82     void endPainting(const QRegion &region);

    83     void flush(const QRegion &region);

    84 

    85     void raise();

    86     void lower();

    87 

    88 

    89     static QRegion reserveRegion(const QRegion&);

    90     static QRegion reservedRegion();

    91     static QRegion region() { return reservedRegion(); }

    92 

    93     static uchar* frameBuffer();

    94     static int screenDepth();

    95     static int screenWidth();

    96     static int screenHeight();

    97     static int linestep();

    98 

    99     static void lock();

   100     static void unlock();

   101 private:

   102     friend  void qt_directpainter_region(QDirectPainter *dp, const QRegion &alloc, int type);

   103     friend void qt_directpainter_embedevent(QDirectPainter*, const QWSEmbedEvent*);

   104 };

   105 

   106 #endif

   107 

   108 QT_END_NAMESPACE

   109 

   110 QT_END_HEADER

   111 

   112 #endif // QDIRECTPAINTER_QWS_H