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/*
* Copyright 2009 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 SkCubicClipper_DEFINED
#define SkCubicClipper_DEFINED
#include "SkPoint.h"
#include "SkRect.h"
/** This class is initialized with a clip rectangle, and then can be fed cubics,
which must already be monotonic in Y.
In the future, it might return a series of segments, allowing it to clip
also in X, to ensure that all segments fit in a finite coordinate system.
*/
class SkCubicClipper {
public:
SkCubicClipper();
void setClip(const SkIRect& clip);
bool SK_WARN_UNUSED_RESULT clipCubic(const SkPoint src[4], SkPoint dst[4]);
static bool SK_WARN_UNUSED_RESULT ChopMonoAtY(const SkPoint pts[4], SkScalar y, SkScalar* t);
private:
SkRect fClip;
};
#endif // SkCubicClipper_DEFINED
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