Skia
2DGraphicsLibrary
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Public Member Functions | |
bool | filterPath (SkPath *, const SkPath &, 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... | |
Protected Member Functions | |
virtual void | begin (const SkIRect &uvBounds, SkPath *dst) const |
New virtual, to be overridden by subclasses. More... | |
virtual void | next (const SkPoint &loc, int u, int v, SkPath *dst) const |
virtual void | end (SkPath *dst) const |
virtual void | nextSpan (int u, int v, int ucount, SkPath *dst) const |
Low-level virtual called per span of locations in the u-direction. More... | |
const SkMatrix & | getMatrix () const |
Sk2DPathEffect (const SkMatrix &mat) | |
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 SkPathEffect | INHERITED |
Private Member Functions | |
Sk2DPathEffect (const Sk2DPathEffect &) | |
Sk2DPathEffect & | operator= (const Sk2DPathEffect &) |
Private Attributes | |
SkMatrix | fMatrix |
SkMatrix | fInverse |
bool | fMatrixIsInvertible |
Friends | |
class | Sk2DPathEffectBlitter |
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, kSkShaderBase_Type, kSkUnused_Type, kSkUnused_Xfermode_Type, kSkNormalSource_Type } |
typedef sk_sp< SkFlattenable >(* | Factory )(SkReadBuffer &) |
Static Public Member Functions inherited from SkPathEffect | |
static sk_sp< SkPathEffect > | MakeSum (sk_sp< SkPathEffect > first, sk_sp< SkPathEffect > second) |
Returns a patheffect that apples each effect (first and second) to the original path, and returns a path with the sum of these. More... | |
static sk_sp< SkPathEffect > | MakeCompose (sk_sp< SkPathEffect > outer, sk_sp< SkPathEffect > inner) |
Returns a patheffect that applies the inner effect to the path, and then applies the outer effect to the result of the inner's. 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) |
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protectedvirtual |
New virtual, to be overridden by subclasses.
This is called once from filterPath, and provides the uv parameter bounds for the path. Subsequent calls to next() will receive u and v values within these bounds, and then a call to end() will signal the end of processing.
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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.
Reimplemented in SkLine2DPathEffect.
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protectedvirtual |
Low-level virtual called per span of locations in the u-direction.
The default implementation calls next() repeatedly with each location.
Reimplemented in SkLine2DPathEffect.