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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 "include/core/SkPoint.h"
- #include "include/core/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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