QWSYellowSurface Class Reference

#include <qwindowsurface_qws_p.h>

Inheritance diagram for QWSYellowSurface:

Public Functions
void	flush (QWidget *widget, const QRegion &region, const QPoint &offset)
	Flushes the given region from the specified widget onto the screen. More...
QImage	image () const
	Implement this function to return an image of the top-level window. More...
bool	isValid () const
	Implement this function to return true if the surface is a valid surface for the given top-level window; otherwise return false. More...
QString	key () const
	Implement this function to return a string that uniquely identifies the class of this surface. More...
QPaintDevice *	paintDevice ()
	Implement this function to return the appropriate paint device. More...
QByteArray	permanentState () const
	Implement this function to return the data required for creating a server-side representation of the surface. More...
	QWSYellowSurface (bool isClient=false)
void	setDelay (int msec)
void	setPermanentState (const QByteArray &data)
	Implement this function to attach a server-side surface instance to the corresponding client side instance using the given data. More...
	~QWSYellowSurface ()
Public Functions inherited from QWSWindowSurface
virtual void	beginPaint (const QRegion &)
	This function is called before painting onto the surface begins, with the region in which the painting will occur. More...
const QRegion	clipRegion () const
	Returns the region currently visible on the screen. More...
virtual void	endPaint (const QRegion &)
	This function is called after painting onto the surface has ended, with the region in which the painting was performed. More...
bool	isBuffered () const
	Returns true if the QWSWindowSurface::Buffered is set; otherwise returns false. More...
bool	isOpaque () const
	Returns true if the QWSWindowSurface::Opaque is set; otherwise returns false. More...
bool	isRegionReserved () const
	Returns true if the QWSWindowSurface::RegionReserved is set; otherwise returns false. More...
virtual bool	lock (int timeout=-1)
virtual bool	move (const QPoint &offset)
	Move the surface with the given offset. More...
virtual QRegion	move (const QPoint &offset, const QRegion &newClip)
	Move the surface with the given offset. More...
virtual QPoint	painterOffset () const
	Returns the offset to be used when painting. More...
	QWSWindowSurface ()
	Constructs an empty surface. More...
	QWSWindowSurface (QWidget *widget)
	Constructs an empty surface for the given top-level widget. More...
virtual void	releaseSurface ()
void	setClipRegion (const QRegion &)
	Sets the region currently visible on the screen to be the given clip region. More...
virtual void	setGeometry (const QRect &rect)
	Sets the currently allocated area to be the given rect. More...
virtual void	setGeometry (const QRect &rect, const QRegion &mask)
virtual void	setTransientState (const QByteArray &state)
SurfaceFlags	surfaceFlags () const
	Returns the surface flags describing the contents of this surface. More...
virtual QByteArray	transientState () const
virtual void	unlock ()
int	winId () const
	~QWSWindowSurface ()
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 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...
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...

Properties
int	delay
QImage	img
QSize	surfaceSize

Additional Inherited Members
Public Types inherited from QWSWindowSurface
enum	SurfaceFlag { RegionReserved = 0x1, Buffered = 0x2, Opaque = 0x4 }
	This enum is used to describe the window surface's contents. More...
Public Types inherited from QWindowSurface
enum	WindowSurfaceFeature { PartialUpdates = 0x00000001, PreservedContents = 0x00000002, StaticContents = 0x00000004, AllFeatures = 0xffffffff }
Protected Functions inherited from QWSWindowSurface
void	setSurfaceFlags (SurfaceFlags type)
	Sets the surface flags describing the contents of this surface, to be the given flags. More...
void	setWinId (int id)
Protected Functions inherited from QWindowSurface
bool	hasStaticContents () const

Detailed Description

Definition at line 269 of file qwindowsurface_qws_p.h.

Constructors and Destructors

QWSYellowSurface()

QWSYellowSurface::QWSYellowSurface

(

bool

isClient = false

)

Definition at line 1290 of file qwindowsurface_qws.cpp.

    : QWSWindowSurface(), delay(10)
{
    if (isClient) {
        setWinId(QWidget::qwsDisplay()->takeId());
        QWidget::qwsDisplay()->nameRegion(winId(),
                                          QLatin1String("Debug flush paint"),
                                          QLatin1String("Silly yellow thing"));
        QWidget::qwsDisplay()->setAltitude(winId(), 1, true);
    }
    setSurfaceFlags(Buffered);
}

~QWSYellowSurface()

QWSYellowSurface::~QWSYellowSurface

(

)

Definition at line 1303 of file qwindowsurface_qws.cpp.

{
}

Functions

flush()

void QWSYellowSurface::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.

Reimplemented from QWSWindowSurface.

Definition at line 1329 of file qwindowsurface_qws.cpp.

Referenced by flushUpdate(), and QWidgetBackingStore::showYellowThing().

{
    Q_UNUSED(offset);

    QWSDisplay *display = QWidget::qwsDisplay();
    QRegion rgn = region;

    if (widget)
        rgn.translate(widget->mapToGlobal(QPoint(0, 0)));

    surfaceSize = region.boundingRect().size();

    const int id = winId();
    display->requestRegion(id, key(), permanentState(), rgn);
    display->setAltitude(id, 1, true);
    display->repaintRegion(id, 0, false, rgn);

    ::usleep(500 * delay);
    display->requestRegion(id, key(), permanentState(), QRegion());
    ::usleep(500 * delay);
}

image()

QImage QWSYellowSurface::image ( ) const

inlinevirtual

Implement this function to return an image of the top-level window.

See also

geometry()

Implements QWSWindowSurface.

Definition at line 287 of file qwindowsurface_qws_p.h.

{ return img; }

isValid()

bool QWSYellowSurface::isValid ( ) const

inlinevirtual

Implement this function to return true if the surface is a valid surface for the given top-level window; otherwise return false.

Since

4.3

See also

window(), key()

Implements QWSWindowSurface.

Definition at line 277 of file qwindowsurface_qws_p.h.

{ return true; }

key()

QString QWSYellowSurface::key ( ) const

inlinevirtual

Implement this function to return a string that uniquely identifies the class of this surface.

See also

window(), isValid()

Implements QWSWindowSurface.

Definition at line 281 of file qwindowsurface_qws_p.h.

Referenced by flush().

{ return QLatin1String("Yellow"); }

paintDevice()

QPaintDevice* QWSYellowSurface::paintDevice ( )

inlinevirtual

Implement this function to return the appropriate paint device.

Implements QWSWindowSurface.

Definition at line 286 of file qwindowsurface_qws_p.h.

{ return &img; }

permanentState()

QByteArray QWSYellowSurface::permanentState ( ) const

virtual

Implement this function to return the data required for creating a server-side representation of the surface.

Since

4.3

See also

attach()

Reimplemented from QWSWindowSurface.

Definition at line 1307 of file qwindowsurface_qws.cpp.

Referenced by flush().

{
    QByteArray array(2 * sizeof(int), Qt::Uninitialized);

    int *ptr = reinterpret_cast<int*>(array.data());
    ptr[0] = surfaceSize.width();
    ptr[1] = surfaceSize.height();

    return array;
}

setDelay()

void QWSYellowSurface::setDelay ( int  msec )

inline

Definition at line 275 of file qwindowsurface_qws_p.h.

Referenced by flushUpdate(), and QWidgetBackingStore::showYellowThing().

{ delay = msec; }

setPermanentState()

void QWSYellowSurface::setPermanentState ( const QByteArray &  data )

virtual

Implement this function to attach a server-side surface instance to the corresponding client side instance using the given data.

Since

4.3

Return true if successful; otherwise return false.

See also

data()

Reimplemented from QWSWindowSurface.

Definition at line 1318 of file qwindowsurface_qws.cpp.

{
    const int *ptr = reinterpret_cast<const int*>(data.constData());

    const int width = ptr[0];
    const int height = ptr[1];

    img = QImage(width, height, QImage::Format_ARGB32);
    img.fill(qRgba(255,255,31,127));
}

Properties

delay

int QWSYellowSurface::delay

private

Definition at line 290 of file qwindowsurface_qws_p.h.

Referenced by flush().

img

QImage QWSYellowSurface::img

private

Definition at line 292 of file qwindowsurface_qws_p.h.

surfaceSize

QSize QWSYellowSurface::surfaceSize

private

Definition at line 291 of file qwindowsurface_qws_p.h.

Referenced by flush(), and permanentState().

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

• /src/gui/painting/qwindowsurface_qws_p.h
• /src/gui/painting/qwindowsurface_qws.cpp