SkPathMeasure.h

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/*
 * 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 SkPathMeasure_DEFINED
#define SkPathMeasure_DEFINED
 
#include "include/core/SkContourMeasure.h"
#include "include/core/SkPath.h"
#include "include/private/SkTDArray.h"
 
class SK_API SkPathMeasure {
public:
    SkPathMeasure();
    SkPathMeasure(const SkPath& path, bool forceClosed, SkScalar resScale = 1);
    ~SkPathMeasure();
 
    void setPath(const SkPath*, bool forceClosed);
 
    SkScalar getLength();
 
    bool SK_WARN_UNUSED_RESULT getPosTan(SkScalar distance, SkPoint* position,
                                         SkVector* tangent);
 
    enum MatrixFlags {
        kGetPosition_MatrixFlag     = 0x01,
        kGetTangent_MatrixFlag      = 0x02,
        kGetPosAndTan_MatrixFlag    = kGetPosition_MatrixFlag | kGetTangent_MatrixFlag
    };
 
    bool SK_WARN_UNUSED_RESULT getMatrix(SkScalar distance, SkMatrix* matrix,
                                  MatrixFlags flags = kGetPosAndTan_MatrixFlag);
 
    bool getSegment(SkScalar startD, SkScalar stopD, SkPath* dst, bool startWithMoveTo);
 
    bool isClosed();
 
    bool nextContour();
 
#ifdef SK_DEBUG
    void    dump();
#endif
 
private:
    SkContourMeasureIter    fIter;
    sk_sp<SkContourMeasure> fContour;
 
    SkPathMeasure(const SkPathMeasure&) = delete;
    SkPathMeasure& operator=(const SkPathMeasure&) = delete;
};
 
#endif