4dc5a45405
Preparation for generating bookmaker files for all remaining interfaces Standardize enum and enum classes by including a comma after the last entry. Replace flatten-related #define in public interfaces with their equivalent. The motivation is to give documentation something to refer to. An alternative would be to move part or all of this out of the public interface; something I can work on in a follow-up CL. R=reed@google.com,bsalomon@google.com Bug: skia:6898 Change-Id: I4b865f6ec3d8f5d31e50448fef7d2714510302f0 Reviewed-on: https://skia-review.googlesource.com/129312 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Cary Clark <caryclark@skia.org>
121 lines
3.5 KiB
C++
121 lines
3.5 KiB
C++
/*
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* Copyright 2006 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef Sk2DPathEffect_DEFINED
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#define Sk2DPathEffect_DEFINED
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#include "SkFlattenable.h"
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#include "SkPath.h"
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#include "SkPathEffect.h"
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#include "SkMatrix.h"
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class SK_API Sk2DPathEffect : public SkPathEffect {
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public:
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bool filterPath(SkPath*, const SkPath&, SkStrokeRec*, const SkRect*) const override;
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protected:
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/** New virtual, to be overridden by subclasses.
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This is called once from filterPath, and provides the
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uv parameter bounds for the path. Subsequent calls to
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next() will receive u and v values within these bounds,
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and then a call to end() will signal the end of processing.
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*/
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virtual void begin(const SkIRect& uvBounds, SkPath* dst) const;
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virtual void next(const SkPoint& loc, int u, int v, SkPath* dst) const;
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virtual void end(SkPath* dst) const;
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/** Low-level virtual called per span of locations in the u-direction.
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The default implementation calls next() repeatedly with each
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location.
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*/
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virtual void nextSpan(int u, int v, int ucount, SkPath* dst) const;
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const SkMatrix& getMatrix() const { return fMatrix; }
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// protected so that subclasses can call this during unflattening
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explicit Sk2DPathEffect(const SkMatrix& mat);
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void flatten(SkWriteBuffer&) const override;
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void toString(SkString* str) const override;
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private:
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SkMatrix fMatrix, fInverse;
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bool fMatrixIsInvertible;
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// illegal
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Sk2DPathEffect(const Sk2DPathEffect&);
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Sk2DPathEffect& operator=(const Sk2DPathEffect&);
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friend class Sk2DPathEffectBlitter;
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typedef SkPathEffect INHERITED;
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};
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class SK_API SkLine2DPathEffect : public Sk2DPathEffect {
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public:
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static sk_sp<SkPathEffect> Make(SkScalar width, const SkMatrix& matrix) {
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if (!(width >= 0)) {
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return nullptr;
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}
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return sk_sp<SkPathEffect>(new SkLine2DPathEffect(width, matrix));
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}
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virtual bool filterPath(SkPath* dst, const SkPath& src,
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SkStrokeRec*, const SkRect*) const override;
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void toString(SkString* str) const override;
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Factory getFactory() const override { return CreateProc; }
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protected:
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SkLine2DPathEffect(SkScalar width, const SkMatrix& matrix)
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: Sk2DPathEffect(matrix), fWidth(width) {
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SkASSERT(width >= 0);
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}
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void flatten(SkWriteBuffer&) const override;
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void nextSpan(int u, int v, int ucount, SkPath*) const override;
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private:
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static sk_sp<SkFlattenable> CreateProc(SkReadBuffer&);
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friend class SkFlattenable::PrivateInitializer;
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SkScalar fWidth;
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typedef Sk2DPathEffect INHERITED;
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};
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class SK_API SkPath2DPathEffect : public Sk2DPathEffect {
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public:
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/**
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* Stamp the specified path to fill the shape, using the matrix to define
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* the latice.
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*/
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static sk_sp<SkPathEffect> Make(const SkMatrix& matrix, const SkPath& path) {
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return sk_sp<SkPathEffect>(new SkPath2DPathEffect(matrix, path));
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}
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void toString(SkString* str) const override;
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Factory getFactory() const override { return CreateProc; }
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protected:
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SkPath2DPathEffect(const SkMatrix&, const SkPath&);
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void flatten(SkWriteBuffer&) const override;
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void next(const SkPoint&, int u, int v, SkPath*) const override;
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private:
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static sk_sp<SkFlattenable> CreateProc(SkReadBuffer&);
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friend class SkFlattenable::PrivateInitializer;
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SkPath fPath;
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typedef Sk2DPathEffect INHERITED;
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};
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#endif
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