1
2/*
3 * Copyright 2006 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10#ifndef SkStrokerPriv_DEFINED
11#define SkStrokerPriv_DEFINED
12
13#include "SkStroke.h"
14
15#define CWX(x, y)   (-y)
16#define CWY(x, y)   (x)
17#define CCWX(x, y)  (y)
18#define CCWY(x, y)  (-x)
19
20#define CUBIC_ARC_FACTOR    ((SK_ScalarSqrt2 - SK_Scalar1) * 4 / 3)
21
22class SkStrokerPriv {
23public:
24    typedef void (*CapProc)(SkPath* path,
25                            const SkPoint& pivot,
26                            const SkVector& normal,
27                            const SkPoint& stop,
28                            SkPath* otherPath);
29
30    typedef void (*JoinProc)(SkPath* outer, SkPath* inner,
31                             const SkVector& beforeUnitNormal,
32                             const SkPoint& pivot,
33                             const SkVector& afterUnitNormal,
34                             SkScalar radius, SkScalar invMiterLimit,
35                             bool prevIsLine, bool currIsLine);
36
37    static CapProc  CapFactory(SkPaint::Cap);
38    static JoinProc JoinFactory(SkPaint::Join);
39};
40
41#endif
42