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SkComposePathEffect Class Reference

This subclass of SkPathEffect composes its two arguments, to create a compound pathEffect. More...

#include <SkPathEffect.h>

Inheritance diagram for SkComposePathEffect:
SkPairPathEffect SkPathEffect SkFlattenable SkRefCnt SkRefCntBase

Public Member Functions

virtual bool filterPath (SkPath *dst, const SkPath &src, SkStrokeRec *, const SkRect *) const override
 Given a src path (input) and a stroke-rec (input and output), apply this effect to the src path, returning the new path in dst, and return true. More...
 
- Public Member Functions inherited from SkPathEffect
virtual void computeFastBounds (SkRect *dst, const SkRect &src) const
 Compute a conservative bounds for its effect, given the src bounds. More...
 
virtual bool asPoints (PointData *results, const SkPath &src, const SkStrokeRec &, const SkMatrix &, const SkRect *cullR) const
 Does applying this path effect to 'src' yield a set of points? If so, optionally return the points in 'results'.
 
virtual DashType asADash (DashInfo *info) const
 
- Public Member Functions inherited from SkFlattenable
virtual Factory getFactory () const =0
 Implement this to return a factory function pointer that can be called to recreate your class given a buffer (previously written to by your override of flatten().
 
virtual const char * getTypeName () const
 Returns the name of the object's class. More...
 
- Public Member Functions inherited from SkRefCntBase
 SkRefCntBase ()
 Default construct, initializing the reference count to 1.
 
virtual ~SkRefCntBase ()
 Destruct, asserting that the reference count is 1.
 
int32_t getRefCnt () const
 Return the reference count. More...
 
void validate () const
 
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...
 

Static Public Member Functions

static sk_sp< SkPathEffectMake (sk_sp< SkPathEffect > outer, sk_sp< SkPathEffect > inner)
 Construct a pathEffect whose effect is to apply first the inner pathEffect and the the outer pathEffect (e.g. More...
 
- Static Public Member Functions inherited from SkFlattenable
static Factory NameToFactory (const char name[])
 
static const char * FactoryToName (Factory)
 
static bool NameToType (const char name[], Type *type)
 
static void Register (const char name[], Factory, Type)
 

Protected Member Functions

 SkComposePathEffect (sk_sp< SkPathEffect > outer, sk_sp< SkPathEffect > inner)
 
- Protected Member Functions inherited from SkPairPathEffect
 SkPairPathEffect (sk_sp< SkPathEffect > pe0, sk_sp< SkPathEffect > pe1)
 
void flatten (SkWriteBuffer &) const override
 Override this if your subclass needs to record data that it will need to recreate itself from its CreateProc (returned by getFactory()).
 
- Protected Member Functions inherited from SkRefCntBase
void internal_dispose_restore_refcnt_to_1 () const
 Allow subclasses to call this if they've overridden internal_dispose so they can reset fRefCnt before the destructor is called or if they choose not to call the destructor (e.g. More...
 

Private Types

typedef SkPairPathEffect INHERITED
 

Private Member Functions

 SkComposePathEffect (const SkComposePathEffect &)
 
SkComposePathEffectoperator= (const SkComposePathEffect &)
 

Additional Inherited Members

- Public Types inherited from SkPathEffect
enum  DashType { kNone_DashType, kDash_DashType }
 If the PathEffect can be represented as a dash pattern, asADash will return kDash_DashType and None otherwise. More...
 
- Public Types inherited from SkFlattenable
enum  Type {
  kSkColorFilter_Type, kSkDrawable_Type, kSkDrawLooper_Type, kSkImageFilter_Type,
  kSkMaskFilter_Type, kSkPathEffect_Type, kSkPixelRef_Type, kSkRasterizer_Type,
  kSkShader_Type, kSkUnused_Type, kSkXfermode_Type, kSkNormalSource_Type
}
 
typedef sk_sp< SkFlattenable >(* Factory )(SkReadBuffer &)
 
- Protected Attributes inherited from SkPairPathEffect
sk_sp< SkPathEffectfPE0
 
sk_sp< SkPathEffectfPE1
 

Detailed Description

This subclass of SkPathEffect composes its two arguments, to create a compound pathEffect.

Member Function Documentation

virtual bool SkComposePathEffect::filterPath ( SkPath dst,
const SkPath src,
SkStrokeRec ,
const SkRect cullR 
) const
overridevirtual

Given a src path (input) and a stroke-rec (input and output), apply this effect to the src path, returning the new path in dst, and return true.

If this effect cannot be applied, return false and ignore dst and stroke-rec.

The stroke-rec specifies the initial request for stroking (if any). The effect can treat this as input only, or it can choose to change the rec as well. For example, the effect can decide to change the stroke's width or join, or the effect can change the rec from stroke to fill (or fill to stroke) in addition to returning a new (dst) path.

If this method returns true, the caller will apply (as needed) the resulting stroke-rec to dst and then draw.

Implements SkPathEffect.

static sk_sp<SkPathEffect> SkComposePathEffect::Make ( sk_sp< SkPathEffect outer,
sk_sp< SkPathEffect inner 
)
inlinestatic

Construct a pathEffect whose effect is to apply first the inner pathEffect and the the outer pathEffect (e.g.

outer(inner(path))) The reference counts for outer and inner are both incremented in the constructor, and decremented in the destructor.


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