skia2/include/effects/Sk2DPathEffect.h
tfarina@chromium.org 6806fe87e0 Export effects classes with SK_API.
So this works in shared_library build in chromium.

This issue was raised up in the following chromium-dev thread:
https://groups.google.com/a/chromium.org/forum/?hl=en&fromgroups=#!topic/chromium-dev/Z6qzEw8MwVY

R=epoger@google.com,tomhudson@google.com

Review URL: https://codereview.appspot.com/6601065

git-svn-id: http://skia.googlecode.com/svn/trunk@5914 2bbb7eff-a529-9590-31e7-b0007b416f81
2012-10-12 14:41:39 +00:00

104 lines
3.0 KiB
C++

/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef Sk2DPathEffect_DEFINED
#define Sk2DPathEffect_DEFINED
#include "SkPath.h"
#include "SkPathEffect.h"
#include "SkMatrix.h"
class SK_API Sk2DPathEffect : public SkPathEffect {
public:
Sk2DPathEffect(const SkMatrix& mat);
// overrides
virtual bool filterPath(SkPath*, const SkPath&, SkStrokeRec*) SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Sk2DPathEffect)
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&);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
private:
SkMatrix fMatrix, fInverse;
bool fMatrixIsInvertible;
// illegal
Sk2DPathEffect(const Sk2DPathEffect&);
Sk2DPathEffect& operator=(const Sk2DPathEffect&);
friend class Sk2DPathEffectBlitter;
typedef SkPathEffect INHERITED;
};
class SK_API SkLine2DPathEffect : public Sk2DPathEffect {
public:
SkLine2DPathEffect(SkScalar width, const SkMatrix& matrix)
: Sk2DPathEffect(matrix), fWidth(width) {}
virtual bool filterPath(SkPath* dst, const SkPath& src, SkStrokeRec* rec) SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLine2DPathEffect)
protected:
virtual void nextSpan(int u, int v, int ucount, SkPath* dst) SK_OVERRIDE;
SkLine2DPathEffect(SkFlattenableReadBuffer&);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
private:
SkScalar fWidth;
typedef Sk2DPathEffect INHERITED;
};
class SK_API SkPath2DPathEffect : public Sk2DPathEffect {
public:
/**
* Stamp the specified path to fill the shape, using the matrix to define
* the latice.
*/
SkPath2DPathEffect(const SkMatrix&, const SkPath&);
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPath2DPathEffect)
protected:
SkPath2DPathEffect(SkFlattenableReadBuffer& buffer);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
virtual void next(const SkPoint&, int u, int v, SkPath* dst) SK_OVERRIDE;
private:
SkPath fPath;
typedef Sk2DPathEffect INHERITED;
};
#endif