QtGui/qdirectpainter_qws.h Source File

qdirectpainter_qws.h
Go to the documentation of this file.
1 /****************************************************************************
2 **
3 ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
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 Digia. For licensing terms and
14 ** conditions see http://qt.digia.com/licensing. For further information
15 ** use the contact form at http://qt.digia.com/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 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 2.1 requirements
23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 **
25 ** In addition, as a special exception, Digia gives you certain additional
26 ** rights. These rights are described in the Digia Qt LGPL Exception
27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 **
29 ** GNU General Public License Usage
30 ** Alternatively, this file may be used under the terms of the GNU
31 ** General Public License version 3.0 as published by the Free Software
32 ** Foundation and appearing in the file LICENSE.GPL included in the
33 ** packaging of this file. Please review the following information to
34 ** ensure the GNU General Public License version 3.0 requirements will be
35 ** met: http://www.gnu.org/copyleft/gpl.html.
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 
49 
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 &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 
109 
111 
112 #endif // QDIRECTPAINTER_QWS_H
GLuint GLuint GLsizei GLenum type
Definition: GLee.h:872
unsigned long WId
Definition: qwindowdefs.h:119
#define QT_END_NAMESPACE
Definition: qglobal.h:128
#define QT_BEGIN_HEADER
Definition: qglobal.h:141
#define QT_BEGIN_NAMESPACE
Definition: qglobal.h:127
#define Q_OBJECT
Definition: qobjectdefs.h:157
Definition: qrect.h:58
Q_CORE_EXPORT QTextStream & flush(QTextStream &s)
static QRegion region()
#define QT_END_HEADER
Definition: qglobal.h:142