Inheritance diagram for QOnScreenRasterPaintEngine:

Public Functions
bool	begin (QPaintDevice *)
	Reimplement this function to initialise your paint engine when painting is to start on the paint device pdev. More...

QPoint	coordinateOffset () const
	Returns the offset from the painters origo to the engines origo. More...

bool	end ()
	Reimplement this function to finish painting on the current paint device. More...

	QOnScreenRasterPaintEngine ()

Public Functions inherited from QRasterPaintEngine
void	alphaPenBlt (const void *src, int bpl, int depth, int rx, int ry, int w, int h)

bool	begin (QPaintDevice *device)
	Reimplemented Function More...

void	brushChanged ()

void	brushOriginChanged ()

void	clip (const QVectorPath &path, Qt::ClipOperation op)

void	clip (const QRect &rect, Qt::ClipOperation op)

void	clip (const QRegion &region, Qt::ClipOperation op)

QRect	clipBoundingRect () const
	Returns the bounding rect of the currently set clip. More...

void	clipEnabledChanged ()

ClipType	clipType () const
	Returns the type of the clip currently set. More...

void	compositionModeChanged ()

QPoint	coordinateOffset () const

QPainterState *	createState (QPainterState *orig) const

virtual void	drawBufferSpan (const uint *buffer, int bufsize, int x, int y, int length, uint const_alpha)
	Draws the given buffer. More...

virtual void	drawColorSpans (const QSpan *spans, int count, uint color)
	Draws the given color spans with the specified color. More...

void	drawEllipse (const QRectF &rect)
	Reimplemented Function More...

void	drawImage (const QPointF &p, const QImage &img)

void	drawImage (const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags falgs=Qt::AutoColor)
	Reimplemented Function More...

void	drawLines (const QLine *line, int lineCount)
	Reimplemented Function More...

void	drawLines (const QLineF *line, int lineCount)
	Reimplemented Function More...

void	drawPixmap (const QPointF &p, const QPixmap &pm)

void	drawPixmap (const QRectF &r, const QPixmap &pm, const QRectF &sr)
	Reimplemented Function More...

void	drawPoints (const QPointF *points, int pointCount)
	Reimplemented Function More...

void	drawPoints (const QPoint *points, int pointCount)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Draws the first pointCount points in the buffer points. More...

void	drawPolygon (const QPointF *points, int pointCount, PolygonDrawMode mode)
	Reimplemented Function More...

void	drawPolygon (const QPoint *points, int pointCount, PolygonDrawMode mode)
	Reimplemented Function More...

void	drawRects (const QRect *rects, int rectCount)
	Reimplemented Function More...

void	drawRects (const QRectF *rects, int rectCount)
	Reimplemented Function More...

void	drawStaticTextItem (QStaticTextItem *textItem)
	Reimplemented Function More...

void	drawTextItem (const QPointF &p, const QTextItem &textItem)
	Reimplemented Function More...

void	drawTiledPixmap (const QRectF &r, const QPixmap &pm, const QPointF &sr)
	Reimplemented Function More...

bool	end ()
	Reimplemented Function More...

void	fill (const QVectorPath &path, const QBrush &brush)

void	fillPath (const QPainterPath &path, QSpanData *fillData)

void	fillPolygon (const QPointF *points, int pointCount, PolygonDrawMode mode)

void	fillRect (const QRectF &rect, const QBrush &brush)
	Reimplemented Function More...

void	fillRect (const QRectF &rect, const QColor &color)
	Reimplemented Function More...

CGContextRef	getCGContext () const

HDC	getDC () const

void	opacityChanged ()

void	penChanged ()

	QRasterPaintEngine (QPaintDevice *device)
	Creates a raster based paint engine for operating on the given device, with the complete set of QPaintEngine::PaintEngineFeature {paint engine features and capabilities}. More...

void	releaseBuffer ()

void	releaseDC (HDC hdc) const

void	renderHintsChanged ()

void	saveBuffer (const QString &s) const

void	setCGContext (CGContextRef ref)

void	setDC (HDC hdc)

void	setState (QPainterState *s)

QSize	size () const

QRasterPaintEngineState *	state ()

const QRasterPaintEngineState *	state () const

void	stroke (const QVectorPath &path, const QPen &pen)

bool	supportsTransformations (const QFontEngine *fontEngine) const

bool	supportsTransformations (qreal pixelSize, const QTransform &m) const

void	transformChanged ()

Type	type () const
	Reimplemented Function More...

void	updateBrush (const QBrush &brush)

void	updateMatrix (const QTransform &matrix)

void	updatePen (const QPen &pen)

	~QRasterPaintEngine ()
	Destroys this paint engine. More...

Public Functions inherited from QPaintEngineEx
virtual void	beginNativePainting ()

virtual void	clip (const QPainterPath &path, Qt::ClipOperation op)

virtual void	draw (const QVectorPath &path)

virtual void	drawEllipse (const QRect &r)
	The default implementation of this function calls the floating point version of this function. More...

virtual void	drawPath (const QPainterPath &path)
	The default implementation ignores the path and does nothing. More...

virtual void	drawPixmapFragments (const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, QPainter::PixmapFragmentHints hints)

virtual void	drawPixmapFragments (const QRectF targetRects, const QRectF sourceRects, int fragmentCount, const QPixmap &pixmap, QPainter::PixmapFragmentHints hints)

virtual void	drawRoundedRect (const QRectF &rect, qreal xrad, qreal yrad, Qt::SizeMode mode)

virtual void	endNativePainting ()

virtual uint	flags () const

virtual QPixmapFilter *	pixmapFilter (int, const QPixmapFilter *)

	QPaintEngineEx ()

QPainterState *	state ()

const QPainterState *	state () const

virtual void	sync ()

virtual void	updateState (const QPaintEngineState &state)
	Reimplement this function to update the state of a paint engine. More...

Public Functions inherited from QPaintEngine
void	clearDirty (DirtyFlags df)

void	fix_neg_rect (int x, int y, int w, int h)

bool	hasFeature (PaintEngineFeatures feature) const
	Returns true if the paint engine supports the specified feature; otherwise returns false. More...

bool	isActive () const
	Returns true if the paint engine is actively drawing; otherwise returns false. More...

bool	isExtended () const
	Returns true if the paint engine is a QPaintEngineEx derivative. More...

QPaintDevice *	paintDevice () const
	Returns the device that this engine is painting on, if painting is active; otherwise returns 0. More...

QPainter *	painter () const
	Returns the paint engine's painter. More...

	QPaintEngine (PaintEngineFeatures features=0)
	Creates a paint engine with the featureset specified by caps. More...

void	setActive (bool newState)
	Sets the active state of the paint engine to state. More...

void	setDirty (DirtyFlags df)

void	setPaintDevice (QPaintDevice *device)

void	setSystemClip (const QRegion &baseClip)
	Sets the system clip for this engine. More...

void	setSystemRect (const QRect &rect)
	Sets the target rect for drawing within the backing store. More...

void	syncState ()
	Updates all dirty states in this engine. More...

QRegion	systemClip () const
	Returns the system clip. More...

QRect	systemRect () const
	Retrieves the rect for drawing within the backing store. More...

bool	testDirty (DirtyFlags df)

virtual	~QPaintEngine ()
	Destroys the paint engine. More...

Public Variables
QImage *	device

QRegion	originalSystemClip

const QWidget *	widget

Additional Inherited Members
Public Types inherited from QRasterPaintEngine
enum	ClipType { RectClip, ComplexClip }

Public Types inherited from QPaintEngineEx
enum	Flags { DoNotEmulate = 0x01, IsEmulationEngine = 0x02 }

Public Types inherited from QPaintEngine
enum	DirtyFlag { DirtyPen = 0x0001, DirtyBrush = 0x0002, DirtyBrushOrigin = 0x0004, DirtyFont = 0x0008, DirtyBackground = 0x0010, DirtyBackgroundMode = 0x0020, DirtyTransform = 0x0040, DirtyClipRegion = 0x0080, DirtyClipPath = 0x0100, DirtyHints = 0x0200, DirtyCompositionMode = 0x0400, DirtyClipEnabled = 0x0800, DirtyOpacity = 0x1000, AllDirty = 0xffff }
	QPaintEngine::updateState(). More...

enum	PaintEngineFeature { PrimitiveTransform = 0x00000001, PatternTransform = 0x00000002, PixmapTransform = 0x00000004, PatternBrush = 0x00000008, LinearGradientFill = 0x00000010, RadialGradientFill = 0x00000020, ConicalGradientFill = 0x00000040, AlphaBlend = 0x00000080, PorterDuff = 0x00000100, PainterPaths = 0x00000200, Antialiasing = 0x00000400, BrushStroke = 0x00000800, ConstantOpacity = 0x00001000, MaskedBrush = 0x00002000, PerspectiveTransform = 0x00004000, BlendModes = 0x00008000, ObjectBoundingModeGradients = 0x00010000, RasterOpModes = 0x00020000, PaintOutsidePaintEvent = 0x20000000, AllFeatures = 0xffffffff }
	This enum is used to describe the features or capabilities that the paint engine has. More...

enum	PolygonDrawMode { OddEvenMode, WindingMode, ConvexMode, PolylineMode }

enum	Type { X11, Windows, QuickDraw, CoreGraphics, MacPrinter, QWindowSystem, PostScript, OpenGL, Picture, SVG, Raster, Direct3D, Pdf, OpenVG, OpenGL2, PaintBuffer, Blitter, User = 50, MaxUser = 100 }

Protected Functions inherited from QRasterPaintEngine
	QRasterPaintEngine (QRasterPaintEnginePrivate &d, QPaintDevice *)

Protected Functions inherited from QPaintEngineEx
	QPaintEngineEx (QPaintEngineExPrivate &data)

Protected Functions inherited from QPaintEngine
	QPaintEngine (QPaintEnginePrivate &data, PaintEngineFeatures devcaps=0)

Protected Variables inherited from QPaintEngine
uint	active: 1

QScopedPointer< QPaintEnginePrivate >	d_ptr

uint	extended: 1

PaintEngineFeatures	gccaps

uint	selfDestruct: 1

QPaintEngineState *	state

Related Functions inherited from QRasterPaintEngine
	QSpan
	A struct equivalent to QT_FT_Span, containing a position (x, y), the span's length in pixels and its color/coverage (a value ranging from 0 to 255). More...

Detailed Description

Definition at line 2011 of file qwidget_win.cpp.

Constructors and Destructors

◆ QOnScreenRasterPaintEngine()

QOnScreenRasterPaintEngine::QOnScreenRasterPaintEngine ( )

inline

Definition at line 2016 of file qwidget_win.cpp.

         : QRasterPaintEngine(new QImage(qt_primary_surface_bits,
                                         QApplication::desktop()->width(),
                                         QApplication::desktop()->height(),
                                         qt_primary_surface_stride,
                                         qt_primary_surface_format))
     {
         device = static_cast<QImage *>(d_func()->device);
     }

Functions

◆ begin()

bool QOnScreenRasterPaintEngine::begin ( QPaintDevice * pdev )

inlinevirtual

Reimplement this function to initialise your paint engine when painting is to start on the paint device pdev.

Return true if the initialization was successful; otherwise return false.

See also: end() isActive()

Implements QPaintEngine.

Definition at line 2026 of file qwidget_win.cpp.

     {
         QRegion clip = systemClip();
         originalSystemClip = clip;
         clip.translate(widget->mapToGlobal(QPoint(0, 0)));
         setSystemClip(clip);
 
         QRect bounds = clip.boundingRect();
         DDSURFACEDESC surface;
         surface.dwSize = sizeof(DDSURFACEDESC);
         HRESULT res = qt_ddraw_primary->Lock((RECT *) &bounds, &surface, DDLOCK_WAIT, 0);
         if (res != DD_OK) {
             qWarning("QWidget painting: locking onscreen bits failed: %d\n", res);
             return false;
         }
 
         if (surface.lpSurface == qt_primary_surface_bits) {
             qt_primary_surface_bits = (uchar *) surface.lpSurface;
             device->data_ptr()->data = qt_primary_surface_bits;
         }
 
         return QRasterPaintEngine::begin(device);
     }

◆ coordinateOffset()

QPoint QOnScreenRasterPaintEngine::coordinateOffset ( ) const

inlinevirtual

Returns the offset from the painters origo to the engines origo.

Warning: This function is not part of the public interface.

This value is used by QPainter for engines who have internal double buffering.

This function only makes sense when the engine is active.

Reimplemented from QPaintEngine.

Definition at line 2060 of file qwidget_win.cpp.

                                     {
         return -widget->mapToGlobal(QPoint(0, 0));
     }

◆ end()

bool QOnScreenRasterPaintEngine::end ( )

inlinevirtual

Reimplement this function to finish painting on the current paint device.

Return true if painting was finished successfully; otherwise return false.

See also: begin() isActive()

Implements QPaintEngine.

Definition at line 2050 of file qwidget_win.cpp.

     {
         HRESULT res = qt_ddraw_primary->Unlock(0);
         if (res != DD_OK)
             qWarning("QWidget::paint, failed to unlock DirectDraw surface: %d", res);
         bool ok = QRasterPaintEngine::end();
         setSystemClip(originalSystemClip);
         return ok;
     }

Properties

◆ device

QImage* QOnScreenRasterPaintEngine::device

Definition at line 2065 of file qwidget_win.cpp.

◆ originalSystemClip

QRegion QOnScreenRasterPaintEngine::originalSystemClip

Definition at line 2066 of file qwidget_win.cpp.

◆ widget

const QWidget* QOnScreenRasterPaintEngine::widget

Definition at line 2064 of file qwidget_win.cpp.

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

/src/gui/kernel/qwidget_win.cpp

Public Functions

Public Variables

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QOnScreenRasterPaintEngine()

Functions

◆ begin()

◆ coordinateOffset()

◆ end()

Properties

◆ device

◆ originalSystemClip

◆ widget