source: trunk/src/opengl/qglscreen_qws.cpp@ 603

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#include <QGLScreen>
#include <QGLContext>
#include <QGLWidget>
#include "private/qglwindowsurface_qws_p.h"

QT_BEGIN_NAMESPACE

class QGLScreenPrivate
{
public:
    QGLScreen::Options options;
    QGLScreenSurfaceFunctions *functions;
};

/*!
  \internal
  \preliminary
  \class QGLScreen

  \brief This class encapsulates an OpenGL screen driver.
*/

QGLScreen::QGLScreen(int displayId)
    : QScreen(displayId, GLClass), d_ptr(new QGLScreenPrivate)
{
    d_ptr->options = NoOptions;
    d_ptr->functions = new QGLScreenSurfaceFunctions();
}

QGLScreen::~QGLScreen()
{
    delete d_ptr->functions;
    delete d_ptr;
}

/*!
    \since 4.3
    \obsolete

    Initializes the \a context and sets up the QGLWindowSurface of the
    QWidget of \a context based on the parameters of \a context and
    based on its own requirements.  The format() of \a context needs
    to be updated with the actual parameters of the OpenGLES drawable
    that was set up.

    \a shareContext is used in the same way as for QGLContext. It is
    the context with which \a context shares display lists and texture
    ids etc. The window surface must be set up so that this sharing
    works.

    Returns true in case of success and false if it is not possible to
    create the necessary OpenGLES drawable/context.

    Since 4.4.2, this function will be not be called if options()
    indicates that a native window or pixmap drawable can be created
    via the functions in the surfaceFunctions() object.

    This function is obsolete in Qt 4.5 and higher.  Use surfaceFunctions()
    instead.

    \sa options(), surfaceFunctions()
*/
bool
QGLScreen::chooseContext(QGLContext *context, const QGLContext *shareContext)
{
    Q_UNUSED(context);
    Q_UNUSED(shareContext);
    return false;
}

/*!
    \enum QGLScreen::Option
    This enum defines options that can be set on QGLScreen instances.

    \value NoOptions There are no special options on the screen.  This is the default.
    \value NativeWindows Native windows can be created with QGLScreenSurfaceFunctions::createNativeWindow().
    \value NativePixmaps Native pixmaps can be created with QGLScreenSurfaceFunctions::createNativePixmap().
    \value NativeImages Native images can be created with QGLScreenSurfaceFunctions::createNativeImage().
    \value Overlays The screen supports GL overlays.
*/

/*!
    \since 4.4.2

    Returns the options associated with this QGLScreen.

    \sa setOptions()
*/
QGLScreen::Options QGLScreen::options() const
{
    return d_ptr->options;
}

/*!
    \since 4.4.2

    Sets the options associated with this QGLScreen to \a value.

    \sa options()
*/
void QGLScreen::setOptions(QGLScreen::Options value)
{
    d_ptr->options = value;
}

/*!
    \since 4.4.2

    Returns the surface functions object for this QGLScreen.

    \sa setSurfaceFunctions()
*/
QGLScreenSurfaceFunctions *QGLScreen::surfaceFunctions() const
{
    return d_ptr->functions;
}

/*!
    \since 4.4.2