1 // Copyright (C) 2013 Google Inc. All rights reserved. 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions are 5 // met: 6 // 7 // * Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above 10 // copyright notice, this list of conditions and the following disclaimer 11 // in the documentation and/or other materials provided with the 12 // distribution. 13 // * Neither the name of Google Inc. nor the names of its 14 // contributors may be used to endorse or promote products derived from 15 // this software without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 #ifndef StrokeData_h 30 #define StrokeData_h 31 32 #include "platform/PlatformExport.h" 33 #include "platform/graphics/DashArray.h" 34 #include "platform/graphics/Gradient.h" 35 #include "platform/graphics/GraphicsTypes.h" 36 #include "platform/graphics/Pattern.h" 37 #include "third_party/skia/include/core/SkColorPriv.h" 38 #include "third_party/skia/include/effects/SkDashPathEffect.h" 39 #include "wtf/PassRefPtr.h" 40 #include "wtf/RefPtr.h" 41 42 namespace blink { 43 44 // Encapsulates stroke geometry information. 45 // It is pulled out of GraphicsContextState to enable other methods to use it. 46 class PLATFORM_EXPORT StrokeData { 47 public: 48 StrokeData() 49 : m_style(SolidStroke) 50 , m_thickness(0) 51 , m_lineCap(SkPaint::kDefault_Cap) 52 , m_lineJoin(SkPaint::kDefault_Join) 53 , m_miterLimit(4) 54 { 55 } 56 57 StrokeStyle style() const { return m_style; } 58 void setStyle(StrokeStyle style) { m_style = style; } 59 60 float thickness() const { return m_thickness; } 61 void setThickness(float thickness) { m_thickness = thickness; } 62 63 LineCap lineCap() const { return (LineCap)m_lineCap; } 64 void setLineCap(LineCap cap) { m_lineCap = (SkPaint::Cap)cap; } 65 66 LineJoin lineJoin() const { return (LineJoin)m_lineJoin; } 67 void setLineJoin(LineJoin join) { m_lineJoin = (SkPaint::Join)join; } 68 69 float miterLimit() const { return m_miterLimit; } 70 void setMiterLimit(float miterLimit) { m_miterLimit = miterLimit; } 71 72 void setLineDash(const DashArray&, float); 73 74 // Sets everything on the paint except the pattern, gradient and color. 75 // If a non-zero length is provided, the number of dashes/dots on a 76 // dashed/dotted line will be adjusted to start and end that length with a 77 // dash/dot. 78 void setupPaint(SkPaint*, int length = 0) const; 79 80 // Setup any DashPathEffect on the paint. If a non-zero length is provided, 81 // and no line dash has been set, the number of dashes/dots on a dashed/dotted 82 // line will be adjusted to start and end that length with a dash/dot. 83 void setupPaintDashPathEffect(SkPaint*, int) const; 84 85 private: 86 StrokeStyle m_style; 87 float m_thickness; 88 SkPaint::Cap m_lineCap; 89 SkPaint::Join m_lineJoin; 90 float m_miterLimit; 91 RefPtr<SkDashPathEffect> m_dash; 92 }; 93 94 } // namespace blink 95 96 #endif // StrokeData_h 97
