SkRegion::Spanerator Class Reference

Returns the line segment ends within SkRegion that intersect a horizontal line. More...

#include <SkRegion.h>

Public Member Functions
	Spanerator (const SkRegion &region, int y, int left, int right)
	Sets SkRegion::Spanerator to return line segments in SkRegion on scan line. More...
bool	next (int *left, int *right)
	Advances iterator to next span intersecting SkRegion within line segment provided in constructor. More...

Detailed Description

Returns the line segment ends within SkRegion that intersect a horizontal line.

Constructor & Destructor Documentation

Spanerator()

SkRegion::Spanerator::Spanerator	(	const SkRegion &	region,
		int	y,
		int	left,
		int	right
	)

Sets SkRegion::Spanerator to return line segments in SkRegion on scan line.

Parameters

region	SkRegion to iterate
y	horizontal line to intersect
left	bounds of iteration
right	bounds of iteration

Returns

SkRegion iterator

example: https://fiddle.skia.org/c/@Region_Spanerator_const_SkRegion_int_int_int

Member Function Documentation

next()

bool SkRegion::Spanerator::next	(	int *	left,
		int *	right
	)

Advances iterator to next span intersecting SkRegion within line segment provided in constructor.

Returns true if interval was found.

Parameters

left	pointer to span start; may be nullptr
right	pointer to span end; may be nullptr

Returns

true if interval was found

example: https://fiddle.skia.org/c/@Region_Spanerator_next

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

• /CHECKOUT/include/core/SkRegion.h