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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkDashPathPriv_DEFINED | 8 #ifndef SkDashPathPriv_DEFINED |
9 #define SkDashPathPriv_DEFINED | 9 #define SkDashPathPriv_DEFINED |
10 | 10 |
11 #include "SkPathEffect.h" | 11 #include "SkPathEffect.h" |
12 | 12 |
13 namespace SkDashPath { | 13 namespace SkDashPath { |
14 /* | 14 /** |
15 * Calculates the initialDashLength, initialDashIndex, and intervalLength ba
sed on the | 15 * Calculates the initialDashLength, initialDashIndex, and intervalLength ba
sed on the |
16 * inputed phase and intervals. If adjustedPhase is passed in, then the phas
e will be | 16 * inputed phase and intervals. If adjustedPhase is passed in, then the phas
e will be |
17 * adjusted to be between 0 and intervalLength. The result will be stored in
adjustedPhase. | 17 * adjusted to be between 0 and intervalLength. The result will be stored in
adjustedPhase. |
18 * If adjustedPhase is nullptr then it is assumed phase is already between 0
and intervalLength | 18 * If adjustedPhase is nullptr then it is assumed phase is already between 0
and intervalLength |
19 * | 19 * |
20 * Caller should have already used ValidDashPath to exclude invalid data. | 20 * Caller should have already used ValidDashPath to exclude invalid data. |
21 */ | 21 */ |
22 void CalcDashParameters(SkScalar phase, const SkScalar intervals[], int32_t
count, | 22 void CalcDashParameters(SkScalar phase, const SkScalar intervals[], int32_t
count, |
23 SkScalar* initialDashLength, int32_t* initialDashInd
ex, | 23 SkScalar* initialDashLength, int32_t* initialDashInd
ex, |
24 SkScalar* intervalLength, SkScalar* adjustedPhase =
nullptr); | 24 SkScalar* intervalLength, SkScalar* adjustedPhase =
nullptr); |
25 | 25 |
26 bool FilterDashPath(SkPath* dst, const SkPath& src, SkStrokeRec*, const SkRe
ct*, | 26 bool FilterDashPath(SkPath* dst, const SkPath& src, SkStrokeRec*, const SkRe
ct*, |
27 const SkPathEffect::DashInfo& info); | 27 const SkPathEffect::DashInfo& info); |
28 | 28 |
29 /* | 29 /** See comments for InternalFilter */ |
30 * Caller should have already used ValidDashPath to exclude invalid data. | 30 enum class StrokeRecApplication { |
| 31 kDisallow, |
| 32 kAllow, |
| 33 }; |
| 34 |
| 35 /** |
| 36 * Caller should have already used ValidDashPath to exclude invalid data. Ty
pically, this leaves |
| 37 * the strokeRec unmodified. However, for some simple shapes (e.g. a line) i
t may directly |
| 38 * evaluate the dash and stroke to produce a stroked output path with a fill
strokeRec. Passing |
| 39 * true for disallowStrokeRecApplication turns this behavior off. |
31 */ | 40 */ |
32 bool InternalFilter(SkPath* dst, const SkPath& src, SkStrokeRec* rec, | 41 bool InternalFilter(SkPath* dst, const SkPath& src, SkStrokeRec* rec, |
33 const SkRect* cullRect, const SkScalar aIntervals[], | 42 const SkRect* cullRect, const SkScalar aIntervals[], |
34 int32_t count, SkScalar initialDashLength, int32_t initi
alDashIndex, | 43 int32_t count, SkScalar initialDashLength, int32_t initi
alDashIndex, |
35 SkScalar intervalLength); | 44 SkScalar intervalLength, |
| 45 StrokeRecApplication = StrokeRecApplication::kAllow); |
36 | 46 |
37 bool ValidDashPath(SkScalar phase, const SkScalar intervals[], int32_t count
); | 47 bool ValidDashPath(SkScalar phase, const SkScalar intervals[], int32_t count
); |
38 } | 48 } |
39 | 49 |
40 #endif | 50 #endif |
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