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 #ifndef SkStrokeRec_DEFINED 9 #define SkStrokeRec_DEFINED 10 11 #include "SkPaint.h" 12 13 class SkPath; 14 15 class SkStrokeRec { 16 public: 17 enum InitStyle { 18 kHairline_InitStyle, 19 kFill_InitStyle 20 }; 21 SkStrokeRec(InitStyle style); 22 23 SkStrokeRec(const SkStrokeRec&); 24 SkStrokeRec(const SkPaint&, SkPaint::Style); 25 explicit SkStrokeRec(const SkPaint&); 26 27 enum Style { 28 kHairline_Style, 29 kFill_Style, 30 kStroke_Style, 31 kStrokeAndFill_Style 32 }; 33 34 Style getStyle() const; getWidth()35 SkScalar getWidth() const { return fWidth; } getMiter()36 SkScalar getMiter() const { return fMiterLimit; } getCap()37 SkPaint::Cap getCap() const { return fCap; } getJoin()38 SkPaint::Join getJoin() const { return fJoin; } 39 isHairlineStyle()40 bool isHairlineStyle() const { 41 return kHairline_Style == this->getStyle(); 42 } 43 isFillStyle()44 bool isFillStyle() const { 45 return kFill_Style == this->getStyle(); 46 } 47 48 void setFillStyle(); 49 void setHairlineStyle(); 50 /** 51 * Specify the strokewidth, and optionally if you want stroke + fill. 52 * Note, if width==0, then this request is taken to mean: 53 * strokeAndFill==true -> new style will be Fill 54 * strokeAndFill==false -> new style will be Hairline 55 */ 56 void setStrokeStyle(SkScalar width, bool strokeAndFill = false); 57 setStrokeParams(SkPaint::Cap cap,SkPaint::Join join,SkScalar miterLimit)58 void setStrokeParams(SkPaint::Cap cap, SkPaint::Join join, SkScalar miterLimit) { 59 fCap = cap; 60 fJoin = join; 61 fMiterLimit = miterLimit; 62 } 63 64 /** 65 * Returns true if this specifes any thick stroking, i.e. applyToPath() 66 * will return true. 67 */ needToApply()68 bool needToApply() const { 69 Style style = this->getStyle(); 70 return (kStroke_Style == style) || (kStrokeAndFill_Style == style); 71 } 72 73 /** 74 * Apply these stroke parameters to the src path, returning the result 75 * in dst. 76 * 77 * If there was no change (i.e. style == hairline or fill) this returns 78 * false and dst is unchanged. Otherwise returns true and the result is 79 * stored in dst. 80 * 81 * src and dst may be the same path. 82 */ 83 bool applyToPath(SkPath* dst, const SkPath& src) const; 84 85 bool operator==(const SkStrokeRec& other) const { 86 return fWidth == other.fWidth && 87 fMiterLimit == other.fMiterLimit && 88 fCap == other.fCap && 89 fJoin == other.fJoin && 90 fStrokeAndFill == other.fStrokeAndFill; 91 } 92 93 private: 94 void init(const SkPaint& paint, SkPaint::Style style); 95 96 97 SkScalar fWidth; 98 SkScalar fMiterLimit; 99 SkPaint::Cap fCap; 100 SkPaint::Join fJoin; 101 bool fStrokeAndFill; 102 }; 103 104 #endif 105