74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef Sk2DPathEffect_DEFINED
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#define Sk2DPathEffect_DEFINED
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#include "SkPathEffect.h"
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#include "SkMatrix.h"
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// This class is not exported to java.
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class Sk2DPathEffect : public SkPathEffect {
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public:
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Sk2DPathEffect(const SkMatrix& mat);
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// overrides
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// This method is not exported to java.
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virtual bool filterPath(SkPath* dst, const SkPath& src, SkScalar* width);
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// overrides from SkFlattenable
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// This method is not exported to java.
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virtual void flatten(SkFlattenableWriteBuffer&);
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// This method is not exported to java.
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virtual Factory getFactory();
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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);
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virtual void next(const SkPoint& loc, int u, int v, SkPath* dst);
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virtual void end(SkPath* dst);
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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);
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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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Sk2DPathEffect(SkFlattenableReadBuffer&);
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private:
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SkMatrix fMatrix, fInverse;
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// illegal
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Sk2DPathEffect(const Sk2DPathEffect&);
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Sk2DPathEffect& operator=(const Sk2DPathEffect&);
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static SkFlattenable* CreateProc(SkFlattenableReadBuffer&);
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friend class Sk2DPathEffectBlitter;
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typedef SkPathEffect INHERITED;
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};
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#endif
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