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# qdirectpainter_qws.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QDIRECTPAINTER_QWS_H
    00043 #define QDIRECTPAINTER_QWS_H
    00044
    00045 #include <QtCore/qobject.h>
    00046 #include <QtGui/qregion.h>
    00047
    00048 QT_BEGIN_HEADER
    00049
    00050 QT_BEGIN_NAMESPACE
    00051
    00052 QT_MODULE(Gui)
    00053
    00054 #ifndef QT_NO_DIRECTPAINTER
    00055 class QDirectPainterPrivate;
    00056 class QWSEmbedEvent;
    00057
    00058 class Q_GUI_EXPORT QDirectPainter : public QObject {
    00059     Q_OBJECT
    00060     Q_DECLARE_PRIVATE(QDirectPainter)
    00061 public:
    00062
    00063     enum SurfaceFlag { NonReserved = 0,
    00064                        Reserved = 1,
    00065                        ReservedSynchronous = 3 };
    00066
    00067     explicit QDirectPainter(QObject *parentObject = 0, SurfaceFlag flag = NonReserved);
    00068     ~QDirectPainter();
    00069
    00070     void setRegion(const QRegion&);
    00071     QRegion requestedRegion() const;
    00072     QRegion allocatedRegion() const;
    00073
    00074     void setGeometry(const QRect&);
    00075     QRect geometry() const;
    00076
    00077     WId winId() const;
    00078     virtual void regionChanged(const QRegion &exposedRegion);
    00079
    00080     void startPainting(bool lockDisplay = true);
    00081     void endPainting();
    00082     void endPainting(const QRegion &region);
    00083     void flush(const QRegion &region);
    00084
    00085     void raise();
    00086     void lower();
    00087
    00088
    00089     static QRegion reserveRegion(const QRegion&);
    00090     static QRegion reservedRegion();
    00091     static QRegion region() { return reservedRegion(); }
    00092
    00093     static uchar* frameBuffer();
    00094     static int screenDepth();
    00095     static int screenWidth();
    00096     static int screenHeight();
    00097     static int linestep();
    00098
    00099     static void lock();
    00100     static void unlock();
    00101 private:
    00102     friend  void qt_directpainter_region(QDirectPainter *dp, const QRegion &alloc, int type);
    00103     friend void qt_directpainter_embedevent(QDirectPainter*, const QWSEmbedEvent*);
    00104 };
    00105
    00106 #endif
    00107
    00108 QT_END_NAMESPACE
    00109
    00110 QT_END_HEADER
    00111
    00112 #endif // QDIRECTPAINTER_QWS_H