1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 2.1 or version 3 as published by the Free 20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and 21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the 22 ** following information to ensure the GNU Lesser General Public License 23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and 24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 25 ** 26 ** As a special exception, The Qt Company gives you certain additional 27 ** rights. These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 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 struct 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 ®ion); 83 void flush(const QRegion ®ion); 84 85 void raise(); 86 void lower(); 87 88 89 static QRegion reserveRegion(const QRegion&); 90 static QRegion reservedRegion(); region()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 113