| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkRRectPriv_DEFINED |
| #define SkRRectPriv_DEFINED |
| |
| #include "include/core/SkRRect.h" |
| |
| class SkRBuffer; |
| class SkWBuffer; |
| |
| class SkRRectPriv { |
| public: |
| static bool IsCircle(const SkRRect& rr) { |
| return rr.isOval() && SkScalarNearlyEqual(rr.fRadii[0].fX, rr.fRadii[0].fY); |
| } |
| |
| static SkVector GetSimpleRadii(const SkRRect& rr) { |
| SkASSERT(!rr.isComplex()); |
| return rr.fRadii[0]; |
| } |
| |
| static bool IsSimpleCircular(const SkRRect& rr) { |
| return rr.isSimple() && SkScalarNearlyEqual(rr.fRadii[0].fX, rr.fRadii[0].fY); |
| } |
| |
| static bool EqualRadii(const SkRRect& rr) { |
| return rr.isRect() || SkRRectPriv::IsCircle(rr) || SkRRectPriv::IsSimpleCircular(rr); |
| } |
| |
| static const SkVector* GetRadiiArray(const SkRRect& rr) { return rr.fRadii; } |
| |
| static bool AllCornersCircular(const SkRRect& rr, SkScalar tolerance = SK_ScalarNearlyZero); |
| |
| static bool ReadFromBuffer(SkRBuffer* buffer, SkRRect* rr); |
| |
| static void WriteToBuffer(const SkRRect& rr, SkWBuffer* buffer); |
| |
| // Compute an approximate largest inscribed bounding box of the rounded rect. For empty, |
| // rect, oval, and simple types this will be the largest inscribed rectangle. Otherwise it may |
| // not be the global maximum, but will be non-empty, touch at least one edge and be contained |
| // in the round rect. |
| static SkRect InnerBounds(const SkRRect& rr); |
| |
| // Attempt to compute the intersection of two round rects. The intersection is not necessarily |
| // a round rect. This returns intersections only when the shape is representable as a new |
| // round rect (or rect). Empty is returned if 'a' and 'b' do not intersect or if the |
| // intersection is too complicated. This is conservative, it may not always detect that an |
| // intersection could be represented as a round rect. However, when it does return a round rect |
| // that intersection will be exact (i.e. it is NOT just a subset of the actual intersection). |
| static SkRRect ConservativeIntersect(const SkRRect& a, const SkRRect& b); |
| }; |
| |
| #endif |