Qt 4.8
qgraphicssystem_gl.cpp
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41 
42 #include "qgraphicssystem_gl_p.h"
43 #include <QGraphicsView>
44 
45 #include "private/qpixmap_raster_p.h"
46 #include "private/qpixmapdata_gl_p.h"
47 #include "private/qwindowsurface_gl_p.h"
48 #include "private/qgl_p.h"
49 #include <private/qwindowsurface_raster_p.h>
50 
51 #if defined(Q_WS_X11) && !defined(QT_NO_EGL)
52 #include "private/qpixmapdata_x11gl_p.h"
53 #include "private/qwindowsurface_x11gl_p.h"
54 #endif
55 
56 #if defined(Q_OS_SYMBIAN)
57 #include <QtGui/private/qapplication_p.h>
58 #include "private/qgltexturepool_p.h"
59 #endif
60 
62 
64 
66 {
67  return new QGLPixmapData(type);
68 }
69 
71 {
72 #ifdef Q_WS_WIN
73  // On Windows the QGLWindowSurface class can't handle
74  // drop shadows and native effects, e.g. fading a menu in/out using
75  // top level window opacity.
76  if (widget->windowType() == Qt::Popup)
77  return new QRasterWindowSurface(widget);
78 #endif
79 
80 #if defined(Q_WS_X11) && !defined(QT_NO_EGL)
82  // If the widget is a QGraphicsView which will be re-drawing the entire
83  // scene each frame anyway, we should use QGLWindowSurface as this may
84  // provide proper buffer flipping, which should be faster than QX11GL's
85  // blitting approach:
88  return new QGLWindowSurface(widget);
89  else
90  return new QX11GLWindowSurface(widget);
91  }
92 #endif
93 
94 #if defined(Q_OS_SYMBIAN)
95  if (!QApplicationPrivate::instance()->useTranslucentEGLSurfaces) {
99  }
100 #endif
101 
102  return new QGLWindowSurface(widget);
103 }
104 #ifdef Q_OS_SYMBIAN
105 void QGLGraphicsSystem::releaseCachedGpuResources()
106 {
108 }
109 
111 {
112  return this;
113 }
114 #endif
115 
117 
T qobject_cast(QObject *object)
Definition: qobject.h:375
double d
Definition: qnumeric_p.h:62
int type
Definition: qmetatype.cpp:239
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QPointer< QWidget > widget
The QWidget class is the base class of all user interface objects.
Definition: qwidget.h:150
static QApplicationPrivate * instance()
QGLWidget * qt_gl_getShareWidget()
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
QPixmapData * createPixmapData(QPixmapData::PixelType type) const
bool testAttribute(Qt::WidgetAttribute) const
Returns true if attribute attribute is set on this widget; otherwise returns false.
Definition: qwidget.h:1041
QWindowSurface * createWindowSurface(QWidget *widget) const
static QGLTexturePool * instance()
The QWindowSurface class provides the drawing area for top-level windows.
The QGLWidget class is a widget for rendering OpenGL graphics.
Definition: qgl.h:474
virtual QGraphicsSystemEx * platformExtension()
QWindowSurface * createDefaultWindowSurface_sys()
The QGraphicsView class provides a widget for displaying the contents of a QGraphicsScene.
Definition: qgraphicsview.h:64
Qt::WindowType windowType() const
Returns the window type of this widget.
Definition: qwidget.h:937
Q_GUI_EXPORT QWidgetPrivate * qt_widget_private(QWidget *widget)
Definition: qwidget.cpp:12920
ViewportUpdateMode viewportUpdateMode
how the viewport should update its contents.
Definition: qgraphicsview.h:79