A geometry that is created from a filled path object. More...

#include <fill_path_geometry.h>

Inheritance diagram for impeller::FillPathGeometry:

Public Member Functions
	FillPathGeometry (const Path &path, std::optional< Rect > inner_rect=std::nullopt)

	~FillPathGeometry () override

bool	CoversArea (const Matrix &transform, const Rect &rect) const override
	Determines if this geometry, transformed by the given `transform`, will completely cover all surface area of the given `rect`. More...

Public Member Functions inherited from impeller::Geometry
virtual	~Geometry ()

virtual bool	IsAxisAlignedRect () const

virtual bool	CanApplyMaskFilter () const

virtual Scalar	ComputeAlphaCoverage (const Matrix &transform) const

Additional Inherited Members
Static Public Member Functions inherited from impeller::Geometry
static std::unique_ptr< Geometry >	MakeFillPath (const Path &path, std::optional< Rect > inner_rect=std::nullopt)

static std::unique_ptr< Geometry >	MakeStrokePath (const Path &path, Scalar stroke_width=0.0, Scalar miter_limit=4.0, Cap stroke_cap=Cap::kButt, Join stroke_join=Join::kMiter)

static std::unique_ptr< Geometry >	MakeCover ()

static std::unique_ptr< Geometry >	MakeRect (const Rect &rect)

static std::unique_ptr< Geometry >	MakeOval (const Rect &rect)

static std::unique_ptr< Geometry >	MakeLine (const Point &p0, const Point &p1, Scalar width, Cap cap)

static std::unique_ptr< Geometry >	MakeCircle (const Point &center, Scalar radius)

static std::unique_ptr< Geometry >	MakeStrokedCircle (const Point &center, Scalar radius, Scalar stroke_width)

static std::unique_ptr< Geometry >	MakeRoundRect (const Rect &rect, const Size &radii)

static std::unique_ptr< Geometry >	MakeRoundSuperellipse (const Rect &rect, Scalar corner_radius)

static Scalar	ComputeStrokeAlphaCoverage (const Matrix &entity, Scalar stroke_width)
	Compute an alpha value to simulate lower coverage of fractional pixel strokes. More...

static GeometryResult	ComputePositionGeometry (const ContentContext &renderer, const Tessellator::VertexGenerator &generator, const Entity &entity, RenderPass &pass)

Detailed Description

A geometry that is created from a filled path object.

Definition at line 16 of file fill_path_geometry.h.

Constructor & Destructor Documentation

◆ FillPathGeometry()

impeller::FillPathGeometry::FillPathGeometry	(	const Path &	path,
		std::optional< Rect >	inner_rect = `std::nullopt`
	)

explicit

Definition at line 15 of file fill_path_geometry.cc.

17 : path_(path), inner_rect_(inner_rect) {}

◆ ~FillPathGeometry()

impeller::FillPathGeometry::~FillPathGeometry ( )

override

Definition at line 19 of file fill_path_geometry.cc.

19 {}

Member Function Documentation

◆ CoversArea()

bool impeller::FillPathGeometry::CoversArea	(	const Matrix &	transform,
		const Rect &	rect
	)		const

overridevirtual

Determines if this geometry, transformed by the given transform, will completely cover all surface area of the given rect.

This is a conservative estimate useful for certain optimizations.

Returns: true if the transformed geometry is guaranteed to cover the given rect. May return false in many undetected cases where the transformed geometry does in fact cover the rect.

Reimplemented from impeller::Geometry.

Definition at line 82 of file fill_path_geometry.cc.

                                                           {
   if (!inner_rect_.has_value()) {
     return false;
   }
   if (!transform.IsTranslationScaleOnly()) {
     return false;
   }
   Rect coverage = inner_rect_->TransformBounds(transform);
   return coverage.Contains(rect);
 }

References impeller::TRect< T >::Contains(), and transform.

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

impeller/entity/geometry/fill_path_geometry.h
impeller/entity/geometry/fill_path_geometry.cc