SkContourMeasure Class Reference

#include <SkContourMeasure.h>

Inheritance diagram for SkContourMeasure:

Public Types
enum	MatrixFlags { kGetPosition_MatrixFlag = 0x01 , kGetTangent_MatrixFlag = 0x02 , kGetPosAndTan_MatrixFlag = kGetPosition_MatrixFlag | kGetTangent_MatrixFlag }

Public Member Functions
SkScalar	length () const
	Return the length of the contour. More...
bool	getPosTan (SkScalar distance, SkPoint *position, SkVector *tangent) const
	Pins distance to 0 <= distance <= length(), and then computes the corresponding position and tangent. More...
bool	getMatrix (SkScalar distance, SkMatrix *matrix, MatrixFlags flags=kGetPosAndTan_MatrixFlag) const
	Pins distance to 0 <= distance <= getLength(), and then computes the corresponding matrix (by calling getPosTan). More...
bool	getSegment (SkScalar startD, SkScalar stopD, SkPath *dst, bool startWithMoveTo) const
	Given a start and stop distance, return in dst the intervening segment(s). More...
bool	isClosed () const
	Return true if the contour is closed() More...
bool	unique () const
	May return true if the caller is the only owner. More...
void	ref () const
	Increment the reference count. More...
void	unref () const
	Decrement the reference count. More...

Friends
class	SkContourMeasureIter

Member Enumeration Documentation

MatrixFlags

enum SkContourMeasure::MatrixFlags

Enumerator
kGetPosition_MatrixFlag
kGetTangent_MatrixFlag
kGetPosAndTan_MatrixFlag

Member Function Documentation

getMatrix()

bool SkContourMeasure::getMatrix	(	SkScalar	distance,
		SkMatrix *	matrix,
		MatrixFlags	flags = kGetPosAndTan_MatrixFlag
	)		const

Pins distance to 0 <= distance <= getLength(), and then computes the corresponding matrix (by calling getPosTan).

Returns false if there is no path, or a zero-length path was specified, in which case matrix is unchanged.

getPosTan()

bool SkContourMeasure::getPosTan	(	SkScalar	distance,
		SkPoint *	position,
		SkVector *	tangent
	)		const

Pins distance to 0 <= distance <= length(), and then computes the corresponding position and tangent.

getSegment()

bool SkContourMeasure::getSegment	(	SkScalar	startD,
		SkScalar	stopD,
		SkPath *	dst,
		bool	startWithMoveTo
	)		const

Given a start and stop distance, return in dst the intervening segment(s).

If the segment is zero-length, return false, else return true. startD and stopD are pinned to legal values (0..getLength()). If startD > stopD then return false (and leave dst untouched). Begin the segment with a moveTo if startWithMoveTo is true

isClosed()

bool SkContourMeasure::isClosed ( ) const

inline

Return true if the contour is closed()

length()

SkScalar SkContourMeasure::length ( ) const

inline

Return the length of the contour.

ref()

void SkRefCntBase::ref ( ) const

inlineinherited

Increment the reference count.

Must be balanced by a call to unref().

unique()

bool SkRefCntBase::unique ( ) const

inlineinherited

May return true if the caller is the only owner.

Ensures that all previous owner's actions are complete.

unref()

void SkRefCntBase::unref ( ) const

inlineinherited

Decrement the reference count.

If the reference count is 1 before the decrement, then delete the object. Note that if this is the case, then the object needs to have been allocated via new, and not on the stack.

Friends And Related Function Documentation

SkContourMeasureIter

friend class SkContourMeasureIter

friend

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

• /CHECKOUT/include/core/SkContourMeasure.h