QBlittablePixmapData Class Reference

#include <qpixmap_blitter_p.h>

Inheritance diagram for QBlittablePixmapData:

Public Functions
QBlittable *	blittable () const
QImage *	buffer ()
virtual QBlittable *	createBlittable (const QSize &size, bool alpha) const =0
void	fill (const QColor &color)
void	fromImage (const QImage &image, Qt::ImageConversionFlags flags)
bool	hasAlphaChannel () const
void	markRasterOverlay (const QRectF &)
void	markRasterOverlay (const QPointF &, const QTextItem &)
void	markRasterOverlay (const QVectorPath &)
void	markRasterOverlay (const QPainterPath &)
void	markRasterOverlay (const QRect *rects, int rectCount)
void	markRasterOverlay (const QRectF *rects, int rectCount)
void	markRasterOverlay (const QPointF *points, int pointCount)
void	markRasterOverlay (const QPoint *points, int pointCount)
int	metric (QPaintDevice::PaintDeviceMetric metric) const
QPaintEngine *	paintEngine () const
	QBlittablePixmapData ()
void	resize (int width, int height)
void	setBlittable (QBlittable *blittable)
QImage	toImage () const
void	unmarkRasterOverlay (const QRectF &)
	~QBlittablePixmapData ()
Public Functions inherited from QPixmapData
virtual QPixmap	alphaChannel () const
qint64	cacheKey () const
ClassId	classId () const
int	colorCount () const
virtual void	copy (const QPixmapData *data, const QRect &rect)
virtual QPixmapData *	createCompatiblePixmapData () const
int	depth () const
virtual bool	fromData (const uchar *buffer, uint len, const char *format, Qt::ImageConversionFlags flags)
virtual bool	fromFile (const QString &filename, const char *format, Qt::ImageConversionFlags flags)
virtual void	fromImageReader (QImageReader *imageReader, Qt::ImageConversionFlags flags)
int	height () const
bool	isNull () const
virtual QBitmap	mask () const
QT_DEPRECATED int	numColors () const
PixelType	pixelType () const
	QPixmapData (PixelType pixelType, int classId)
virtual QPixmapData *	runtimeData () const
virtual bool	scroll (int dx, int dy, const QRect &rect)
int	serialNumber () const
virtual void	setAlphaChannel (const QPixmap &alphaChannel)
virtual void	setMask (const QBitmap &mask)
virtual QImage	toImage (const QRect &rect) const
virtual QPixmap	transformed (const QTransform &matrix, Qt::TransformationMode mode) const
int	width () const
virtual	~QPixmapData ()

Protected Variables
bool	m_alpha
QScopedPointer< QBlittable >	m_blittable
QScopedPointer< QBlitterPaintEngine >	m_engine
Protected Variables inherited from QPixmapData
int	d
int	h
bool	is_null
int	w

Additional Inherited Members
Public Types inherited from QPixmapData
enum	ClassId {   RasterClass, X11Class, MacClass, DirectFBClass,   OpenGLClass, OpenVGClass, RuntimeClass, BlitterClass,   CustomClass = 1024 }
enum	PixelType { PixmapType, BitmapType }
Static Public Functions inherited from QPixmapData
static QPixmapData *	create (int w, int h, PixelType type)
Protected Functions inherited from QPixmapData
void	setSerialNumber (int serNo)

Detailed Description

Definition at line 51 of file qpixmap_blitter_p.h.

Constructors and Destructors

QBlittablePixmapData()

QBlittablePixmapData::QBlittablePixmapData

(

)

Definition at line 59 of file qpixmap_blitter.cpp.

    : QPixmapData(QPixmapData::PixmapType,BlitterClass)
    , m_alpha(false)
#ifdef QT_BLITTER_RASTEROVERLAY
    ,m_rasterOverlay(0), m_unmergedCopy(0)
#endif //QT_BLITTER_RASTEROVERLAY
{
    setSerialNumber(++global_ser_no);
}

~QBlittablePixmapData()

QBlittablePixmapData::~QBlittablePixmapData

(

)

Definition at line 69 of file qpixmap_blitter.cpp.

{
#ifdef QT_BLITTER_RASTEROVERLAY
    delete m_rasterOverlay;
    delete m_unmergedCopy;
#endif //QT_BLITTER_RASTEROVERLAY
}

Functions

blittable()

QBlittable * QBlittablePixmapData::blittable

(

)

const

Definition at line 77 of file qpixmap_blitter.cpp.

Referenced by buffer(), QDirectFbConvenience::dfbSurfaceForPlatformPixmap(), QDirectFbBlitter::drawPixmapOpacity(), fill(), QDirectFbWindowSurface::flush(), hasAlphaChannel(), QDirectFbWindowSurface::scroll(), and toImage().

{
    if (!m_blittable) {
        QBlittablePixmapData *that = const_cast<QBlittablePixmapData *>(this);
        that->m_blittable.reset(this->createBlittable(QSize(w,h), m_alpha));
    }

    return m_blittable.data();
}

buffer()

QImage * QBlittablePixmapData::buffer ( )

virtual

Reimplemented from QPixmapData.

Definition at line 179 of file qpixmap_blitter.cpp.

Referenced by fromImage(), and paintEngine().

{
    return blittable()->lock();
}

createBlittable()

virtual QBlittable* QBlittablePixmapData::createBlittable ( const QSize &  size, bool  alpha  ) const

pure virtual

Implemented in QDirectFbBlitterPlatformPixmap.

Referenced by blittable().

fill()

void QBlittablePixmapData::fill ( const QColor &  color )

virtual

Implements QPixmapData.

Definition at line 134 of file qpixmap_blitter.cpp.

{
    if (blittable()->capabilities() & QBlittable::AlphaFillRectCapability) {
        blittable()->unlock();
        blittable()->alphaFillRect(QRectF(0,0,w,h),color,QPainter::CompositionMode_Source);
    } else if (color.alpha() == 255 && blittable()->capabilities() & QBlittable::SolidRectCapability) {
        blittable()->unlock();
        blittable()->fillRect(QRectF(0,0,w,h),color);
    } else {
        // Need to be backed with an alpha channel now. It would be nice
        // if we could just change the format, e.g. when going from
        // RGB32 -> ARGB8888.
        if (color.alpha() != 255 && !hasAlphaChannel()) {
            m_blittable.reset(0);
            m_engine.reset(0);
            m_alpha = true;
        }

        uint pixel;
        switch (blittable()->lock()->format()) {
        case QImage::Format_ARGB32_Premultiplied:
            pixel = PREMUL(color.rgba());
            break;
        case QImage::Format_ARGB8565_Premultiplied:
            pixel = qargb8565(color.rgba()).rawValue();
            break;
        case QImage::Format_ARGB8555_Premultiplied:
            pixel = qargb8555(color.rgba()).rawValue();
            break;
        case QImage::Format_ARGB6666_Premultiplied:
            pixel = qargb6666(color.rgba()).rawValue();
            break;
        case QImage::Format_ARGB4444_Premultiplied:
            pixel = qargb4444(color.rgba()).rawValue();
            break;
        default:
            pixel = color.rgba();
            break;
        }
        //so premultiplied formats are supported and ARGB32 and RGB32
        blittable()->lock()->fill(pixel);
    }

}

fromImage()

void QBlittablePixmapData::fromImage ( const QImage &  image, Qt::ImageConversionFlags  flags  )

virtual

Implements QPixmapData.

Definition at line 194 of file qpixmap_blitter.cpp.

{
    m_alpha = image.hasAlphaChannel();
    resize(image.width(),image.height());
    markRasterOverlay(QRect(0,0,w,h));
    QImage *thisImg = buffer();

    QImage correctFormatPic = image;
    if (correctFormatPic.format() != thisImg->format())
        correctFormatPic = correctFormatPic.convertToFormat(thisImg->format(), flags);

    uchar *mem = thisImg->bits();
    const uchar *bits = correctFormatPic.bits();
    int bytesCopied = 0;
    while (bytesCopied < correctFormatPic.byteCount()) {
        memcpy(mem,bits,correctFormatPic.bytesPerLine());
        mem += thisImg->bytesPerLine();
        bits += correctFormatPic.bytesPerLine();
        bytesCopied+=correctFormatPic.bytesPerLine();
    }
}

hasAlphaChannel()

bool QBlittablePixmapData::hasAlphaChannel ( ) const

virtual

Implements QPixmapData.

Definition at line 189 of file qpixmap_blitter.cpp.

Referenced by fill().

{
    return blittable()->lock()->hasAlphaChannel();
}

markRasterOverlay() [1/8]

void QBlittablePixmapData::markRasterOverlay ( const QRectF &  rect )

inline

Definition at line 105 of file qpixmap_blitter_p.h.

Referenced by fromImage().

{
#ifdef QT_BLITTER_RASTEROVERLAY
    markRasterOverlayImpl(rect);
#else
   Q_UNUSED(rect)
#endif
}

markRasterOverlay() [2/8]

void QBlittablePixmapData::markRasterOverlay ( const QPointF &  pos, const QTextItem &  ti  )

inline

Definition at line 123 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
    QFontMetricsF fm(ti.font());
    QRectF rect = fm.tightBoundingRect(ti.text());
    rect.moveBottomLeft(pos);
    markRasterOverlay(rect);
#else
    Q_UNUSED(pos)
    Q_UNUSED(ti)
#endif
}

markRasterOverlay() [3/8]

void QBlittablePixmapData::markRasterOverlay ( const QVectorPath &  path )

inline

Definition at line 114 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
    markRasterOverlayImpl(path.convertToPainterPath().boundingRect());
#else
    Q_UNUSED(path)
#endif
}

markRasterOverlay() [4/8]

void QBlittablePixmapData::markRasterOverlay ( const QPainterPath &  path )

inline

Definition at line 179 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
#error "not ported yet"
#else
    Q_UNUSED(path);
#endif
}

markRasterOverlay() [5/8]

void QBlittablePixmapData::markRasterOverlay ( const QRect *  rects, int  rectCount  )

inline

Definition at line 136 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
    for (int i = 0; i < rectCount; i++) {
        markRasterOverlay(rects[i]);
    }
#else
    Q_UNUSED(rects)
    Q_UNUSED(rectCount)
#endif
}

markRasterOverlay() [6/8]

void QBlittablePixmapData::markRasterOverlay ( const QRectF *  rects, int  rectCount  )

inline

Definition at line 147 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
    for (int i = 0; i < rectCount; i++) {
        markRasterOverlay(rects[i]);
    }
#else
    Q_UNUSED(rects)
    Q_UNUSED(rectCount)
#endif
}

markRasterOverlay() [7/8]

void QBlittablePixmapData::markRasterOverlay ( const QPointF *  points, int  pointCount  )

inline

Definition at line 159 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
#error "not ported yet"
#else
    Q_UNUSED(points);
    Q_UNUSED(pointCount);
#endif
}

markRasterOverlay() [8/8]

void QBlittablePixmapData::markRasterOverlay ( const QPoint *  points, int  pointCount  )

inline

Definition at line 169 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
#error "not ported yet"
#else
    Q_UNUSED(points);
    Q_UNUSED(pointCount);
#endif
}

metric()

int QBlittablePixmapData::metric ( QPaintDevice::PaintDeviceMetric  metric ) const

virtual

Implements QPixmapData.

Definition at line 107 of file qpixmap_blitter.cpp.

{
    switch (metric) {
    case QPaintDevice::PdmWidth:
        return w;
    case QPaintDevice::PdmHeight:
        return h;
    case QPaintDevice::PdmWidthMM:
        return qRound(w * 25.4 / qt_defaultDpiX());
    case QPaintDevice::PdmHeightMM:
        return qRound(h * 25.4 / qt_defaultDpiY());
    case QPaintDevice::PdmDepth:
        return 32;
    case QPaintDevice::PdmDpiX: // fall-through
    case QPaintDevice::PdmPhysicalDpiX:
        return qt_defaultDpiX();
    case QPaintDevice::PdmDpiY: // fall-through
    case QPaintDevice::PdmPhysicalDpiY:
        return qt_defaultDpiY();
    default:
        qWarning("QRasterPixmapData::metric(): Unhandled metric type %d", metric);
        break;
    }

    return 0;
}

paintEngine()

QPaintEngine * QBlittablePixmapData::paintEngine ( ) const

virtual

Implements QPixmapData.

Definition at line 217 of file qpixmap_blitter.cpp.

{
    if (!m_engine) {
        QBlittablePixmapData *that = const_cast<QBlittablePixmapData *>(this);
        that->m_engine.reset(new QBlitterPaintEngine(that));
    }
    return m_engine.data();
}

resize()

void QBlittablePixmapData::resize ( int  width, int  height  )

virtual

Implements QPixmapData.

Definition at line 93 of file qpixmap_blitter.cpp.

Referenced by fromImage(), and setBlittable().

{

    m_blittable.reset(0);
    m_engine.reset(0);
#ifdef Q_WS_QPA
    d = QApplicationPrivate::platformIntegration()->screens().at(0)->depth();
#endif
    w = width;
    h = height;
    is_null = (w <= 0 || h <= 0);
    setSerialNumber(++global_ser_no);
}

setBlittable()

void QBlittablePixmapData::setBlittable

(

QBlittable *

blittable

)

Definition at line 87 of file qpixmap_blitter.cpp.

Referenced by QDirectFbWindowSurface::resize().

{
    resize(blittable->size().width(),blittable->size().height());
    m_blittable.reset(blittable);
}

toImage()

QImage QBlittablePixmapData::toImage ( ) const

virtual

Implements QPixmapData.

Definition at line 184 of file qpixmap_blitter.cpp.

{
    return blittable()->lock()->copy();
}

unmarkRasterOverlay()

void QBlittablePixmapData::unmarkRasterOverlay ( const QRectF &  rect )

inline

Definition at line 188 of file qpixmap_blitter_p.h.

{
#ifdef QT_BLITTER_RASTEROVERLAY
    unmarkRasterOverlayImpl(rect);
#else
    Q_UNUSED(rect)
#endif
}

Properties

m_alpha

bool QBlittablePixmapData::m_alpha

protected

Definition at line 91 of file qpixmap_blitter_p.h.

Referenced by blittable(), fill(), and fromImage().

m_blittable

QScopedPointer<QBlittable> QBlittablePixmapData::m_blittable

protected

Definition at line 90 of file qpixmap_blitter_p.h.

Referenced by blittable(), fill(), resize(), and setBlittable().

m_engine

QScopedPointer<QBlitterPaintEngine> QBlittablePixmapData::m_engine

protected

Definition at line 89 of file qpixmap_blitter_p.h.

Referenced by fill(), paintEngine(), and resize().

---

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

• /src/gui/image/qpixmap_blitter_p.h
• /src/gui/image/qpixmap_blitter.cpp