The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/core/SkStrokeRec.cpp
gfx/skia/trunk/src/core/SkStrokeRec.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:f9fc68a61a6e |
|---|---|
| 1 /* | |
| 2 * Copyright 2012 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #include "SkStrokeRec.h" | |
| 9 #include "SkPaintDefaults.h" | |
| 10 | |
| 11 // must be < 0, since ==0 means hairline, and >0 means normal stroke | |
| 12 #define kStrokeRec_FillStyleWidth (-SK_Scalar1) | |
| 13 | |
| 14 SkStrokeRec::SkStrokeRec(InitStyle s) { | |
| 15 fWidth = (kFill_InitStyle == s) ? kStrokeRec_FillStyleWidth : 0; | |
| 16 fMiterLimit = SkPaintDefaults_MiterLimit; | |
| 17 fCap = SkPaint::kDefault_Cap; | |
| 18 fJoin = SkPaint::kDefault_Join; | |
| 19 fStrokeAndFill = false; | |
| 20 } | |
| 21 | |
| 22 SkStrokeRec::SkStrokeRec(const SkStrokeRec& src) { | |
| 23 memcpy(this, &src, sizeof(src)); | |
| 24 } | |
| 25 | |
| 26 SkStrokeRec::SkStrokeRec(const SkPaint& paint) { | |
| 27 switch (paint.getStyle()) { | |
| 28 case SkPaint::kFill_Style: | |
| 29 fWidth = kStrokeRec_FillStyleWidth; | |
| 30 fStrokeAndFill = false; | |
| 31 break; | |
| 32 case SkPaint::kStroke_Style: | |
| 33 fWidth = paint.getStrokeWidth(); | |
| 34 fStrokeAndFill = false; | |
| 35 break; | |
| 36 case SkPaint::kStrokeAndFill_Style: | |
| 37 if (0 == paint.getStrokeWidth()) { | |
| 38 // hairline+fill == fill | |
| 39 fWidth = kStrokeRec_FillStyleWidth; | |
| 40 fStrokeAndFill = false; | |
| 41 } else { | |
| 42 fWidth = paint.getStrokeWidth(); | |
| 43 fStrokeAndFill = true; | |
| 44 } | |
| 45 break; | |
| 46 default: | |
| 47 SkDEBUGFAIL("unknown paint style"); | |
| 48 // fall back on just fill | |
| 49 fWidth = kStrokeRec_FillStyleWidth; | |
| 50 fStrokeAndFill = false; | |
| 51 break; | |
| 52 } | |
| 53 | |
| 54 // copy these from the paint, regardless of our "style" | |
| 55 fMiterLimit = paint.getStrokeMiter(); | |
| 56 fCap = paint.getStrokeCap(); | |
| 57 fJoin = paint.getStrokeJoin(); | |
| 58 } | |
| 59 | |
| 60 SkStrokeRec::Style SkStrokeRec::getStyle() const { | |
| 61 if (fWidth < 0) { | |
| 62 return kFill_Style; | |
| 63 } else if (0 == fWidth) { | |
| 64 return kHairline_Style; | |
| 65 } else { | |
| 66 return fStrokeAndFill ? kStrokeAndFill_Style : kStroke_Style; | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 void SkStrokeRec::setFillStyle() { | |
| 71 fWidth = kStrokeRec_FillStyleWidth; | |
| 72 fStrokeAndFill = false; | |
| 73 } | |
| 74 | |
| 75 void SkStrokeRec::setHairlineStyle() { | |
| 76 fWidth = 0; | |
| 77 fStrokeAndFill = false; | |
| 78 } | |
| 79 | |
| 80 void SkStrokeRec::setStrokeStyle(SkScalar width, bool strokeAndFill) { | |
| 81 if (strokeAndFill && (0 == width)) { | |
| 82 // hairline+fill == fill | |
| 83 this->setFillStyle(); | |
| 84 } else { | |
| 85 fWidth = width; | |
| 86 fStrokeAndFill = strokeAndFill; | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 #include "SkStroke.h" | |
| 91 | |
| 92 bool SkStrokeRec::applyToPath(SkPath* dst, const SkPath& src) const { | |
| 93 if (fWidth <= 0) { // hairline or fill | |
| 94 return false; | |
| 95 } | |
| 96 | |
| 97 SkStroke stroker; | |
| 98 stroker.setCap(fCap); | |
| 99 stroker.setJoin(fJoin); | |
| 100 stroker.setMiterLimit(fMiterLimit); | |
| 101 stroker.setWidth(fWidth); | |
| 102 stroker.setDoFill(fStrokeAndFill); | |
| 103 stroker.strokePath(src, dst); | |
| 104 return true; | |
| 105 } |
