Qt 4.8
qdirectpainter_qws.h
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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
56 struct QWSEmbedEvent;
57 
59  Q_OBJECT
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);
104 };
105 
106 #endif
107 
109 
111 
112 #endif // QDIRECTPAINTER_QWS_H
unsigned long WId
Definition: qwindowdefs.h:119
int type
Definition: qmetatype.cpp:239
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
void qt_directpainter_region(QDirectPainter *dp, const QRegion &alloc, int type)
The QDirectPainter class provides direct access to the underlying hardware in Qt for Embedded Linux...
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
unsigned char uchar
Definition: qglobal.h:994
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QRegion class specifies a clip region for a painter.
Definition: qregion.h:68
#define Q_OBJECT
Definition: qobjectdefs.h:157
void qt_directpainter_embedevent(QDirectPainter *dp, const QWSEmbedEvent *event)
static QReadWriteLock lock
Definition: proxyconf.cpp:399
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
static QRegion region()
Use QDirectPainter::allocatedRegion() instead.
SurfaceFlag
This enum describes the behavior of the region reserved by this QDirectPainter object.
Q_CORE_EXPORT QTextStream & flush(QTextStream &s)
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
#define QT_END_HEADER
Definition: qglobal.h:137