| /* |
| * 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 |