QDirectFbWindowSurface Class Reference

#include <qdirectfbwindowsurface.h>

Inheritance diagram for QDirectFbWindowSurface:

Public Functions
void	beginPaint (const QRegion &region)
	This function is called before painting onto the surface begins, with the region in which the painting will occur. More...
void	endPaint (const QRegion &region)
	This function is called after painting onto the surface has ended, with the region in which the painting was performed. More...
void	flush (QWidget *widget, const QRegion &region, const QPoint &offset)
	Flushes the given region from the specified widget onto the screen. More...
QPaintDevice *	paintDevice ()
	Implement this function to return the appropriate paint device. More...
	QDirectFbWindowSurface (QWidget *window)
void	resize (const QSize &size)
bool	scroll (const QRegion &area, int dx, int dy)
	Scrolls the given area dx pixels to the right and dy downward; both dx and dy may be negative. More...
Public Functions inherited from QWindowSurface
virtual QImage *	buffer (const QWidget *widget)
	Returns a QImage pointer which represents the actual buffer the widget is drawn into or 0 if this is unavailable. More...
virtual WindowSurfaceFeatures	features () const
QRect	geometry () const
	Returns the currently allocated area on the screen. More...
virtual QPixmap	grabWidget (const QWidget *widget, const QRect &rectangle=QRect()) const
	Returns a QPixmap generated from the part of the backing store corresponding to widget. More...
bool	hasFeature (WindowSurfaceFeature feature) const
virtual QPoint	offset (const QWidget *widget) const
	Returns the offset of widget in the coordinates of this window surface. More...
	QWindowSurface (QWidget *window, bool setDefaultSurface=true)
	Constructs an empty surface for the given top-level window. More...
QRect	rect (const QWidget *widget) const
	Returns the rectangle for widget in the coordinates of this window surface. More...
virtual void	setGeometry (const QRect &rect)
	Sets the currently allocated area to be the given rect. More...
void	setStaticContents (const QRegion &region)
QRegion	staticContents () const
QWidget *	window () const
	Returns a pointer to the top-level window associated with this surface. More...
virtual	~QWindowSurface ()
	Destroys this surface. More...

Private Functions
void	lockSurfaceToImage ()

Properties
QDirectFBPointer< IDirectFBSurface >	m_dfbSurface
QScopedPointer< QPixmap >	m_pixmap
QBlittablePixmapData *	m_pmdata

Additional Inherited Members
Public Types inherited from QWindowSurface
enum	WindowSurfaceFeature { PartialUpdates = 0x00000001, PreservedContents = 0x00000002, StaticContents = 0x00000004, AllFeatures = 0xffffffff }
Protected Functions inherited from QWindowSurface
bool	hasStaticContents () const

Detailed Description

Definition at line 53 of file qdirectfbwindowsurface.h.

Constructors and Destructors

QDirectFbWindowSurface()

QDirectFbWindowSurface::QDirectFbWindowSurface

(

QWidget *

window

)

Definition at line 53 of file qdirectfbwindowsurface.cpp.

    : QWindowSurface(window), m_pixmap(0), m_pmdata(0)
{
    IDirectFBWindow *dfbWindow = static_cast<QDirectFbWindow *>(window->platformWindow())->dfbWindow();
    dfbWindow->GetSurface(dfbWindow, m_dfbSurface.outPtr());

//WRONGSIZE
    QDirectFbBlitter *blitter = new QDirectFbBlitter(window->size(), m_dfbSurface.data());
    m_pmdata = new QDirectFbBlitterPlatformPixmap;
    m_pmdata->setBlittable(blitter);
    m_pixmap.reset(new QPixmap(m_pmdata));
}

Functions

beginPaint()

void QDirectFbWindowSurface::beginPaint ( const QRegion &  region )

virtual

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

See also

endPaint(), paintDevice()

Reimplemented from QWindowSurface.

Definition at line 121 of file qdirectfbwindowsurface.cpp.

{
    Q_UNUSED(region);
}

endPaint()

void QDirectFbWindowSurface::endPaint ( const QRegion &  region )

virtual

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

See also

beginPaint(), paintDevice()

Reimplemented from QWindowSurface.

Definition at line 126 of file qdirectfbwindowsurface.cpp.

{
    Q_UNUSED(region);
}

flush()

void QDirectFbWindowSurface::flush ( QWidget *  widget, const QRegion &  region, const QPoint &  offset  )

virtual

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

Note that the offset parameter is currently unused.

Implements QWindowSurface.

Definition at line 71 of file qdirectfbwindowsurface.cpp.

{
    Q_UNUSED(widget);
    m_pmdata->blittable()->unlock();

    QVector<QRect> rects = region.rects();
    for (int i = 0 ; i < rects.size(); i++) {
        const QRect rect = rects.at(i);
        DFBRegion dfbReg = { rect.x() + offset.x(),rect.y() + offset.y(),rect.right() + offset.x(),rect.bottom() + offset.y()};
        m_dfbSurface->Flip(m_dfbSurface.data(), &dfbReg, DFBSurfaceFlipFlags(DSFLIP_BLIT|DSFLIP_ONSYNC));
    }
}

lockSurfaceToImage()

void QDirectFbWindowSurface::lockSurfaceToImage ( )

private

paintDevice()

QPaintDevice * QDirectFbWindowSurface::paintDevice ( )

virtual

Implement this function to return the appropriate paint device.

Implements QWindowSurface.

Definition at line 66 of file qdirectfbwindowsurface.cpp.

{
    return m_pixmap.data();
}

resize()

void QDirectFbWindowSurface::resize

(

const QSize &

size

)

Definition at line 84 of file qdirectfbwindowsurface.cpp.

{
    if (size == QWindowSurface::size())
        return;

    QWindowSurface::resize(size);
    QDirectFbBlitter *blitter = new QDirectFbBlitter(size, m_dfbSurface.data());
    m_pmdata->setBlittable(blitter);
}

scroll()

bool QDirectFbWindowSurface::scroll ( const QRegion &  area, int  dx, int  dy  )

virtual

Scrolls the given area dx pixels to the right and dy downward; both dx and dy may be negative.

Returns true if the area was scrolled successfully; false otherwise.

Reimplemented from QWindowSurface.

Definition at line 102 of file qdirectfbwindowsurface.cpp.

{
    m_pmdata->blittable()->unlock();

    if (!m_dfbSurface || area.isEmpty())
        return false;
    m_dfbSurface->SetBlittingFlags(m_dfbSurface.data(), DSBLIT_NOFX);
    if (area.rectCount() == 1) {
        scrollSurface(m_dfbSurface.data(), area.boundingRect(), dx, dy);
    } else {
        const QVector<QRect> rects = area.rects();
        const int n = rects.size();
        for (int i=0; i<n; ++i) {
            scrollSurface(m_dfbSurface.data(), rects.at(i), dx, dy);
        }
    }
    return true;
}

Properties

m_dfbSurface

QDirectFBPointer<IDirectFBSurface> QDirectFbWindowSurface::m_dfbSurface

private

Definition at line 71 of file qdirectfbwindowsurface.h.

Referenced by flush(), QDirectFbWindowSurface(), resize(), and scroll().

m_pixmap

QScopedPointer<QPixmap> QDirectFbWindowSurface::m_pixmap

private

Definition at line 69 of file qdirectfbwindowsurface.h.

Referenced by paintDevice(), and QDirectFbWindowSurface().

m_pmdata

QBlittablePixmapData* QDirectFbWindowSurface::m_pmdata

private

Definition at line 70 of file qdirectfbwindowsurface.h.

Referenced by flush(), QDirectFbWindowSurface(), resize(), and scroll().

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The documentation for this class was generated from the following files:

• /src/plugins/platforms/directfb/qdirectfbwindowsurface.h
• /src/plugins/platforms/directfb/qdirectfbwindowsurface.cpp