Qt 4.8
qegl_qws.cpp
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41 
42 #include <QtGui/qpaintdevice.h>
43 #include <QtGui/qpixmap.h>
44 #include <QtGui/qwidget.h>
45 
46 #include "qegl_p.h"
47 #include "qeglcontext_p.h"
48 
49 #if !defined(QT_NO_EGL)
50 
51 #include <qscreen_qws.h>
52 #include <qscreenproxy_qws.h>
53 #include <qapplication.h>
54 #include <qdesktopwidget.h>
55 
57 
59 {
60  QScreen *screen = qt_screen;
61  if (!screen)
62  return 0;
63  if (screen->classId() == QScreen::MultiClass) {
64  int screenNumber;
65  if (device && device->devType() == QInternal::Widget)
66  screenNumber = qApp->desktop()->screenNumber(static_cast<QWidget *>(device));
67  else
68  screenNumber = 0;
69  screen = screen->subScreens()[screenNumber];
70  }
71  while (screen->classId() == QScreen::ProxyClass ||
72  screen->classId() == QScreen::TransformedClass) {
73  screen = static_cast<QProxyScreen *>(screen)->screen();
74  }
75  return screen;
76 }
77 
78 // Set pixel format and other properties based on a paint device.
80 {
81  if (!dev)
82  return;
83 
84  // Find the QGLScreen for this paint device.
85  QScreen *screen = screenForDevice(dev);
86  if (!screen)
87  return;
88  int devType = dev->devType();
89  if (devType == QInternal::Image)
90  setPixelFormat(static_cast<QImage *>(dev)->format());
91  else
92  setPixelFormat(screen->pixelFormat());
93 }
94 
96 {
97  return EGLNativeDisplayType(EGL_DEFAULT_DISPLAY);
98 }
99 
101 {
102  return (EGLNativeWindowType)(widget->winId()); // Might work
103 }
104 
106 {
107  qWarning("QEgl: EGL pixmap surfaces not supported on QWS");
108  return (EGLNativePixmapType)0;
109 }
110 
111 
113 
114 #endif // !QT_NO_EGL
Q_GUI_EXPORT QScreen * qt_screen
Definition: qscreen_qws.cpp:69
The QProxyScreen class provides a generic interface to QScreen implementations.
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QPointer< QWidget > widget
NativePixmapType EGLNativePixmapType
Definition: qegl_p.h:117
The QWidget class is the base class of all user interface objects.
Definition: qwidget.h:150
NativeWindowType EGLNativeWindowType
Definition: qegl_p.h:116
Q_GUI_EXPORT EGLNativePixmapType nativePixmap(QPixmap *)
Definition: qegl_qpa.cpp:65
virtual int devType() const
Definition: qpaintdevice.h:167
static QScreen * screenForDevice(QPaintDevice *device)
Definition: qegl_qws.cpp:58
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
#define qApp
Q_CORE_EXPORT void qWarning(const char *,...)
QImage::Format pixelFormat() const
Returns the pixel format of the screen, or QImage::Format_Invalid if the pixel format is not a suppor...
Q_GUI_EXPORT EGLNativeDisplayType nativeDisplay()
Definition: qegl_qpa.cpp:55
virtual QList< QScreen * > subScreens() const
Definition: qscreen_qws.h:283
The QScreen class is a base class for screen drivers in Qt for Embedded Linux.
Definition: qscreen_qws.h:191
void setPaintDeviceFormat(QPaintDevice *dev)
Definition: qegl_qpa.cpp:93
The QPixmap class is an off-screen image representation that can be used as a paint device...
Definition: qpixmap.h:71
void setPixelFormat(QImage::Format pixelFormat)
NativeDisplayType EGLNativeDisplayType
Definition: qegl_p.h:118
ClassId classId() const
Returns the class identifier for the screen object.
WId winId() const
Returns the window system identifier of the widget.
Definition: qwidget.cpp:2557
Q_GUI_EXPORT EGLNativeWindowType nativeWindow(QWidget *)
Definition: qegl_qpa.cpp:60