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TGopFilledPolygonWithPattern Class Reference

class TGopFilledPolygonWithPattern : public TGraphicsOperation

An accelerated graphics operation that fills a polygon with a pattern held in another bitmap.

AddPoints() must be called to specify the polygon to be filled. Objects of this class can be passed to a graphics accelerator's Operation() function either individually, or in a buffer.

TGraphicsAcceleratorCaps::iPolygon TGopFillPattern

Inherits from

TGopFilledPolygonWithPattern
- TGraphicsOperation

Public Member Functions
	TGopFilledPolygonWithPattern ( TGopFillPattern , CGraphicsContext::TFillRule )
void	AddPoints ( TInt , TPoint *)

Inherited Functions
	TGraphicsOperation::Append(TInt,TAny *)
	TGraphicsOperation::Function()const
	TGraphicsOperation::Next()const
	TGraphicsOperation::Size()const
	TGraphicsOperation::TGraphicsOperation()
	TGraphicsOperation::TGraphicsOperation(TGopFunction,TInt)

Inherited Enumerations
	TGraphicsOperation:TGopFunction

Public Attributes
CGraphicsContext::TFillRule	iFillRule
TInt	iNumPoints
TGopFillPattern	iPattern

Inherited Attributes
	TGraphicsOperation::iFunction
	TGraphicsOperation::iSize

Constructor & Destructor Documentation

TGopFilledPolygonWithPattern(TGopFillPattern, CGraphicsContext::TFillRule)

TGopFilledPolygonWithPattern	(	TGopFillPattern	aPattern,
		CGraphicsContext::TFillRule	aFillRule
	)	[inline]

Constructor with a fill pattern and a fill rule. The number of points is initialised to zero.

Parameters

TGopFillPattern aPattern	The fill pattern.
CGraphicsContext::TFillRule aFillRule	Bit flags for how self-crossing polygons are filled.

Member Functions Documentation

AddPoints(TInt, TPoint *)

void	AddPoints	(	TInt	aNumPoints,
			TPoint *	aPoints
		)	[inline]

Specifies the polygon to be filled as a number of 2D point coordinates.

AddPoints() should only be called once the TGopFilledPolygonWithPattern object has been stored into a buffer. There must be enough room in the buffer after the TGopFilledPolygonWithPattern object to hold aNumPoints TPoint sized structures. This is because the points are copied into the memory space directly following the TGopFilledPolygonWithPattern object.

Parameters

TInt aNumPoints	The number of points in the polygon.
TPoint * aPoints	Pointer to the first point in the polygon.

Member Data Documentation

CGraphicsContext::TFillRule iFillRule

CGraphicsContext::TFillRule

iFillRule

Bit flags for how self-crossing polygons are filled.

CGraphicsContext::TFillRule

TInt iNumPoints

TInt	iNumPoints

The number of points in the polygon.

TGopFillPattern iPattern

TGopFillPattern

iPattern

The pattern of bitmaps that is used to fill the polygon.