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 WebCore { 43 44 // Encapsulates stroke painting information. 45 // It is pulled out of GraphicsContextState to enable other methods to use it. 46 class PLATFORM_EXPORT StrokeData { 47 public: StrokeData()48 StrokeData() 49 : m_style(SolidStroke) 50 , m_thickness(0) 51 , m_color(Color::black) 52 , m_lineCap(SkPaint::kDefault_Cap) 53 , m_lineJoin(SkPaint::kDefault_Join) 54 , m_miterLimit(4) 55 { 56 } 57 style()58 StrokeStyle style() const { return m_style; } setStyle(const StrokeStyle style)59 void setStyle(const StrokeStyle style) { m_style = style; } 60 thickness()61 float thickness() const { return m_thickness; } setThickness(const float thickness)62 void setThickness(const float thickness) { m_thickness = thickness; } 63 color()64 Color color() const { return m_color; } setColor(const Color & color)65 void setColor(const Color& color) { m_color = color; } 66 gradient()67 Gradient* gradient() const { return m_gradient.get(); } setGradient(const PassRefPtr<Gradient> gradient)68 void setGradient(const PassRefPtr<Gradient> gradient) { m_gradient = gradient; } clearGradient()69 void clearGradient() { m_gradient.clear(); } 70 pattern()71 Pattern* pattern() const { return m_pattern.get(); } setPattern(const PassRefPtr<Pattern> pattern)72 void setPattern(const PassRefPtr<Pattern> pattern) { m_pattern = pattern; } clearPattern()73 void clearPattern() { m_pattern.clear(); } 74 lineCap()75 LineCap lineCap() const { return (LineCap)m_lineCap; } setLineCap(const LineCap cap)76 void setLineCap(const LineCap cap) { m_lineCap = (SkPaint::Cap)cap; } 77 lineJoin()78 LineJoin lineJoin() const { return (LineJoin)m_lineJoin; } setLineJoin(const LineJoin join)79 void setLineJoin(const LineJoin join) { m_lineJoin = (SkPaint::Join)join; } 80 miterLimit()81 float miterLimit() const { return m_miterLimit; } setMiterLimit(const float miterLimit)82 void setMiterLimit(const float miterLimit) { m_miterLimit = miterLimit; } 83 84 void setLineDash(const DashArray&, const float); 85 86 // Sets everything on the paint except the pattern, gradient and color. 87 // GraphicsContext::setupShader does that. Returns a float representing the 88 // effective width of the pen. If a non-zero length is provided, the 89 // number of dashes/dots on a dashed/dotted line will be adjusted to 90 // start and end that length with a dash/dot. 91 float setupPaint(SkPaint*, int length = 0) const; 92 93 private: 94 StrokeStyle m_style; 95 float m_thickness; 96 Color m_color; 97 RefPtr<Gradient> m_gradient; 98 RefPtr<Pattern> m_pattern; 99 SkPaint::Cap m_lineCap; 100 SkPaint::Join m_lineJoin; 101 float m_miterLimit; 102 RefPtr<SkDashPathEffect> m_dash; 103 }; 104 105 } // namespace WebCore 106 107 #endif // StrokeData_h 108