source: trunk/src/gui/painting/qwindowsurface.cpp@ 986

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#include <private/qwindowsurface_p.h>
#include <qwidget.h>
#include <private/qwidget_p.h>
#include <private/qbackingstore_p.h>
#include <private/qapplication_p.h>

QT_BEGIN_NAMESPACE

class QWindowSurfacePrivate
{
public:
    QWindowSurfacePrivate(QWidget *w)
        : window(w)
        , staticContentsSupport(0)
        , partialUpdateSupport(1)
    {
    }

    QWidget *window;
    QRect geometry;
    QRegion staticContents;
    QList<QImage*> bufferImages;
    uint staticContentsSupport : 1;
    uint partialUpdateSupport : 1;
};

/*!
    \class QWindowSurface
    \since 4.3
    \internal
    \preliminary
    \ingroup qws

    \brief The QWindowSurface class provides the drawing area for top-level
    windows.
*/


/*!
    \fn void QWindowSurface::beginPaint(const QRegion &region)

    This function is called before painting onto the surface begins,
    with the \a region in which the painting will occur.

    \sa endPaint(), paintDevice()
*/

/*!
    \fn void QWindowSurface::endPaint(const QRegion &region)

    This function is called after painting onto the surface has ended,
    with the \a region in which the painting was performed.

    \sa beginPaint(), paintDevice()
*/

/*!
    \fn void QWindowSurface::flush(QWidget *widget, const QRegion &region,
                                  const QPoint &offset)

    Flushes the given \a region from the specified \a widget onto the
    screen.

    Note that the \a offset parameter is currently unused.
*/

/*!
    \fn QPaintDevice* QWindowSurface::paintDevice()

    Implement this function to return the appropriate paint device.
*/

/*!
    Constructs an empty surface for the given top-level \a window.
*/
QWindowSurface::QWindowSurface(QWidget *window)
    : d_ptr(new QWindowSurfacePrivate(window))