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