QFbWindowSurface Class Reference

#include <fb_base.h>

Inheritance diagram for QFbWindowSurface:

Public Functions
virtual 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...
virtual 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...
virtual void	flush (QWidget *widget, const QRegion &region, const QPoint &offset)
	Flushes the given region from the specified widget onto the screen. More...
const QImage	image ()
virtual QPaintDevice *	paintDevice ()
	Implement this function to return the appropriate paint device. More...
	QFbWindowSurface (QFbScreen *screen, QWidget *window)
void	resize (const QSize &size)
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...
	~QFbWindowSurface ()
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...

Protected Variables
QImage	mImage
QFbScreen *	mScreen
QFbWindow *	platformWindow

Friends
class	QFbWindow

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 94 of file fb_base.h.

Constructors and Destructors

QFbWindowSurface()

QFbWindowSurface::QFbWindowSurface	(	QFbScreen *	screen,
		QWidget *	window
	)

Definition at line 395 of file fb_base.cpp.

    : QWindowSurface(window),
      mScreen(screen)
{
    mImage = QImage(window->size(), mScreen->format());

    platformWindow = static_cast<QFbWindow*>(window->platformWindow());
    platformWindow->surface = this;
}

~QFbWindowSurface()

QFbWindowSurface::~QFbWindowSurface

(

)

Definition at line 405 of file fb_base.cpp.

{
}

Functions

beginPaint()

void QFbWindowSurface::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 475 of file fb_base.cpp.

{
    Q_UNUSED(region);
}

endPaint()

void QFbWindowSurface::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 480 of file fb_base.cpp.

{
    Q_UNUSED(region);
}

flush()

void QFbWindowSurface::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 409 of file fb_base.cpp.

{
    Q_UNUSED(widget);
    Q_UNUSED(offset);


//    qDebug() << "QFbWindowSurface::flush" << region;


    platformWindow->repaint(region);
}

image()

const QImage QFbWindowSurface::image ( )

inline

Definition at line 108 of file fb_base.h.

{ return mImage; }

paintDevice()

virtual QPaintDevice* QFbWindowSurface::paintDevice ( )

inlinevirtual

Implement this function to return the appropriate paint device.

Implements QWindowSurface.

Definition at line 100 of file fb_base.h.

{ return &mImage; }

resize()

void QFbWindowSurface::resize

(

const QSize &

size

)

Definition at line 445 of file fb_base.cpp.

{
    // change the widget's QImage if this is a resize
    if (mImage.size() != size)
        mImage = QImage(size, mScreen->format());
    QWindowSurface::resize(size);
}

scroll()

bool QFbWindowSurface::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 470 of file fb_base.cpp.

{
    return QWindowSurface::scroll(area, dx, dy);
}

Friends and Related Functions

QFbWindow

friend class QFbWindow

friend

Definition at line 112 of file fb_base.h.

Properties

mImage

QImage QFbWindowSurface::mImage

protected

Definition at line 116 of file fb_base.h.

Referenced by QFbWindowSurface(), and resize().

mScreen

QFbScreen* QFbWindowSurface::mScreen

protected

Definition at line 115 of file fb_base.h.

Referenced by QFbWindowSurface(), and resize().

platformWindow

QFbWindow* QFbWindowSurface::platformWindow

protected

Definition at line 113 of file fb_base.h.

Referenced by flush(), and QFbWindowSurface().

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

• /src/plugins/platforms/fb_base/fb_base.h
• /src/plugins/platforms/fb_base/fb_base.cpp